Journal articles: 'Automatic Static Analysi'

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Li, Wei, Decheng Wang, and Peng Cheng. "Design and Research of Automatic Tool Changer System for Multistation Spring Forming Machine." Journal of Robotics 2020 (December 1, 2020): 1–9. http://dx.doi.org/10.1155/2020/4635056.

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Currently, the spring machine tool is fixed by means of manual clamping and positioning by bolts. The automation of the tool change is low, and the accurate value of the tool position cannot be determined. The automatic tool change system for spring machine was designed by using the standard functional parts of the automatic tool change system of the machining center. It mainly includes the design of the automatic loose clamp device and that of the multispindle automatic tool change arm. After static analysis, the deformation of the automatic tool change arm is 0.153 mm, which satisfies the requirements for usage. Kinematic analysis of the designed automatic tool change arm was carried out. After actual verification, the designed automatic tool change system of spring machine realizes the functions of the tools automatic replacement and positioning of the spring machine, which improves the automation of the spring forming equipment.

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Tatasciore, Monica, Vanessa K. Bowden, Troy A. W. Visser, Stephanie Chen, and Shayne Loft. "The Effect of the Degree of Static Automation in Simulated Submarine Track Management." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 62, no. 1 (September 2018): 1668. http://dx.doi.org/10.1177/1541931218621378.

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Automation that supports our workplaces is intended to relieve the requirement for humans to control tasks, as a way to reduce operator workload and maximize system capacity. Researchers have long recognized the potential costs associated with automation. These costs include the loss of an operator’s understanding of a task and an inability to anticipate future task events ( situation awareness; SA; Endsley, 1995) that can occur due to automation induced complacency (Parasuraman, Molloy, & Singh, 1993), and the subsequent lack of ability to regain manual control after automation (Kaber & Endsley, 2004). These costs to automation are more likely to occur when the degree of automation (DOA) increases. DOA has been defined based on whether automation is doing more or less ‘work’ ( levels of automation; Sheridan & Verplank, 1978), and at which of the four stages of human information processing the automation is directed; information acquisition, information analysis, decision selection, and action implementation ( stages of automation; Parasuraman, Sheridan, & Wickens, 2000). As the DOA increases, performance and workload tend to improve. However, SA and return-to-manual performance can decline. Recent research by Chen, Huf, Visser, and Loft (2017) reported that a low DOA had minimal benefits to performance and workload, and also impaired SA and non-automated task performance compared to a manual control condition in a simulated submarine track management task. However, the low DOA did not lead to any return-to-manual deficits when automation was unexpectedly removed. The current study compared the effects of low and high DOA on operator performance, workload, SA, non-automated task performance, and return-to-manual performance in submarine track management. Participants ( N= 122) monitored a tactical display that presented the location and heading of contacts in relation to the Ownship and landmarks, and a ‘waterfall’ display that presented sonar bearings of contacts and how those bearings change with time. Participants performed three tasks: classification, closest point of approach (CPA), and dive. The classification task involved classifying contacts depending on how long they had spent within display regions. The CPA task involved monitoring changes in contact heading to determine their closest point of approach to the Ownship. The dive task involved integrating contact location and heading information to determine when the submarine could safely dive. Automated assistance was provided for the classification and CPA tasks, but not for the dive task. The low DOA condition received information acquisition and analysis support (stages 1 and 2), whereas the high DOA received decision selection support (stage 3). In a mixed design, the between-subjects factor was condition (no automation, high DOA, low DOA) and the within-subjects factor was automation state (routine, automation removal). Participants completed three track management scenarios, and during the last scenario the automation was unexpectedly removed. Firstly, we predicted that a high DOA would have larger benefits to performance and workload compared to a low DOA, but that these benefits might be accompanied by costs to SA, non-automated task performance, and return-to-manual performance. Secondly, we predicted that a low DOA would show minimal benefits to performance and workload, significant costs to SA and non-automated task performance, and no effect on return-to-manual performance when compared to no automation, thus replicating the findings of Chen et al. (2017). The results from this study indicated that relative to the low DOA condition, participants provided with high DOA support had better performance and lower workload, without any further costs to SA, non-automated task performance, or return-to-manual performance. Furthermore, relative to no automation, participants provided with low DOA support only had minor benefits to performance (replicating Chen et al., 2017) and no benefits to workload, and significant costs to SA and non-automated task performance. In summary, the high DOA produced larger benefits to performance and workload than the low DOA, without increasing costs. In light of these results, the automated system that recommended decisions was effectively utilized by operators in the current context, and appeared to be superior to the automated system that supported information acquisition and analysis.

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G, Anil Reddy, Balakathikeyan B, Sri Ram S, Dr R. P. S. Manikandan, Dr S. Prakash, and Mr B. Varun Kumar. "Automatic Water Saving Irrigation System Using IoT." International Journal for Research in Applied Science and Engineering Technology 10, no. 2 (February 28, 2022): 1157–60. http://dx.doi.org/10.22214/ijraset.2022.40469.

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Abstract: Automation of farm activities can transform agricultural domain from being manual and static to intelligent and dynamic leading to higher production with lesser human supervision. This paper proposes an automated irrigation system which monitors and maintains the desired soil moisture content via automatic watering. SoC ESP8266 Wi-Fi module platform is used to implement the control unit. The setup uses soil moisture sensors which measure the exact moisture level in soil. This value enables the system to use appropriate quantity of water which avoids over/under irrigation and the ph sensor measure the ph value of water finally the DHT11 used to analysis the temperature of atmosphere. IOT is used to keep the farmers updated about the status of sprinklers. Information from the sensors is regularly updated on a webpage using internet through which a farmer can check whether the water sprinklers are ON/OFF at any given time. Also, the sensor readings are transmitted to cloud storage to generate graphs for analysis Keywords: Automation, SoC, ESP8266, DHT11, IOT, Cloud storage

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Packevičius, Šarūnas, Greta Rudžionienė, and Eduardas Bareiša. "Automated Visual Testing of Application User Interfaces Using Static Analysis of Screenshots." International Journal of Software Engineering and Knowledge Engineering 31, no. 02 (February 2021): 167–91. http://dx.doi.org/10.1142/s0218194021500042.

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Mobile and web applications must operate and be displayed correctly on many different devices and browsers. The visual testing of web or mobile applications is usually a manual process that requires a significant amount of testing time, meaning that applications are tested only on a few devices. It is then assumed that the applications will be displayed correctly on other compatible or similar devices. This paper presents an automated visual testing method for user interfaces. The main contributions of this paper are a classification scheme for visual defects of user interfaces and the definition of an automatic visual testing method that tests applications on many different devices with varying hardware and software parameters. The method is based on an automated search for defects using heuristic and expected state prediction algorithms, which involves analyzing the resources used by applications and screenshots. The testing method works by executing applications on a full set of devices, taking a screenshot at every execution step, and analyzing each of these screenshots. The manual as well as automated testing approaches were validated on 781 of Android applications. The experimental results show that the proposed method has advantages over manual testing.

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Tesfatsion, Leigh. "Nonlocal automated comparative static analysis." Computer Science in Economics and Management 5, no. 4 (November 1992): 313–31. http://dx.doi.org/10.1007/bf00436585.

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Rama, Mr V. Seetha. "Precision Agriculture using IOT." International Journal for Research in Applied Science and Engineering Technology 9, no. VII (July 10, 2021): 122–27. http://dx.doi.org/10.22214/ijraset.2021.36255.

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Automation of farm activities can transform agricultural domain from being manual and static to intelligent and dynamic leading to higher production with lesser human supervision. This paper proposes an automated irrigation system which monitors and maintains the desired soil moisture content via automatic watering. Microcontroller ATMEGA328P on Arduino Uno platform is used to implement the control unit. The setup uses soil moisture sensors which measure the exact moisture level in soil. This value enables the system to use appropriate quantity of water which avoids over/under irrigation. IOT is used to keep the farmers updated about the status of sprinklers. Information from the sensors is regularly updated on a webpage using GSM-GPRS SIM900A modem through which a farmer can check whether the water sprinklers are ON/OFF at any given time. Also, the sensor readings are transmitted to a Thing speak channel to generate graphs for analysis.

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Cui, Bing Yan, Li Wen Chen, Zhi Jun Wang, Yuan Hao Zhao, Li Zhan Xian, and Zhen Lin Jin. "Analysis of Statics and Design of Structur Parameters for a Bionic Robot Hip Joint." Journal of Biomimetics, Biomaterials and Biomedical Engineering 22 (March 2015): 3–12. http://dx.doi.org/10.4028/www.scientific.net/jbbbe.22.3.

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The hip joint is one of the body's important joints, most of the lower limb activities of the human body are inseparable from the hip joint, a novel bionic robot hip joint was proposed based on 3-DOF spherical parallel mechanism. The statics performance of the bionic robot hip joint was analyzed, and the structure parameters were designed. First, the static transmission equation of the bionic robot hip joint was established using the principle of virtual works, which simplifies the calculation process of the bionic robot hip joint. Further, using the norm in Matrix theory, the force Jacobian matrix was introduced into the statics performance evaluation index, and the statics performance evaluation index and the global torque performance evaluation index was defined, and the performance atlas of the statics performance evaluation index was plotted at the workspace of the bionic robot hip joint. Moreover the objective optimal function was established basing on the global torque performance evaluation index, and the relation of the objective optimal function and the global torque performance evaluation index were analyzed. By use of fully automatic searching method, the optimal structural parameter ranges of the bionic robot hip joint were obtained. Analysis results show that the bionic robot hip joint has good static transmission performance at initial position, and the static transmission performance is decreased with increasing the workspace. Finally, using a set of optimal structural sizes parameters, a novel bionic robot hip joint was designed, which established the theoretical foundation for the bionic robot design and apply.

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LIANG, Guang-Tai, Na MENG, Jin-Hui LI, Hao ZHONG, Lu ZHANG, and Qian-Xiang WANG. "A Semi-Automatic Extensible Static Defect Analysis Tool." Chinese Journal of Computers 34, no. 6 (September 6, 2011): 1114–25. http://dx.doi.org/10.3724/sp.j.1016.2011.01114.

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Ravitch, Tristan, Steve Jackson, Eric Aderhold, and Ben Liblit. "Automatic generation of library bindings using static analysis." ACM SIGPLAN Notices 44, no. 6 (May 28, 2009): 352–62. http://dx.doi.org/10.1145/1543135.1542516.

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Bozga, Marius, Jean-Claude Fernandez, and Lucian Ghirvu. "Using static analysis to improve automatic test generation." International Journal on Software Tools for Technology Transfer (STTT) 4, no. 2 (February 1, 2003): 142–52. http://dx.doi.org/10.1007/s10009-002-0098-x.

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Sun, Hongwei, Chao Liu, Benshun Zhang, Yiming Chen, Sibo Zhao, and Chengdong Li. "Static and modal analysis of industrial robots." Journal of Physics: Conference Series 2174, no. 1 (January 1, 2022): 012086. http://dx.doi.org/10.1088/1742-6596/2174/1/012086.

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Abstract As an important automation equipment in contemporary manufacturing industry, 5-axis industrial robot is an important part of automated production. It improves the quality of work and production efficiency, reduces the workload of workers and lowers production costs. The development of industrial robots has a profound impact on China’s goal of being among the world’s manufacturing powerhouses in the first half of the 21st century. This paper presents a finite element analysis of the overall system of a five-axis intelligent robot for industrial use. The main focus is on optimizing the mechanical structure of the five-axis intelligent robot for industrial use, and the external structure of the key support components of the robot is simplified to create the model. Hazardous stress states were selected for the system analysis, a static analysis was implemented for each component to obtain the displacement and stresses corresponding to them, the maximum deformation of the key parts of the robot was obtained, and finally its stiffness was evaluated. Then the modal analysis is performed on this robot model, and the modal vibration clouds of the first 6 orders are selected to study the vibration patterns to obtain the corresponding frequencies, which provides data support for the robot to avoid working at resonant frequencies and provides a theoretical basis for improving its overall structure.

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Revnivykh, Aleksandr Vladimirovich, and Anatolii Sergeevich Velizhanin. "Methods for automated formation of a disassembled listing structure." Кибернетика и программирование, no. 2 (February 2019): 1–16. http://dx.doi.org/10.25136/2306-4196.2019.2.28272.

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The subject of the research is the method of splitting a disassembled code into logical blocks in automatic mode, searching for software vulnerabilities without using source code (using a binary file or its equivalent, obtained by reverse engineering).The object of the research is the existing code analyzers and features of their functionality.The aim of the study is to consider the possibility of splitting a disassembled code into logical blocks in automatic mode and some of the possible difficulties associated with this.Formulation of the problem. The complexity of analyzing large software products at the level of machine code necessitates the automation of this process. The research methodology is based on a combination of theoretical and empirical approaches using the methods of static and dynamic analysis, comparison, generalization, algorithmization, modeling, synthesis. Key findings. Splitting the code into blocks by sequential in line-by-line analysis of machine code in some cases can lead to misinterpretation. In addition, the analysis of the code according to the conclusions of the functions also does not guarantee the correctness of the determination of the boundaries of the functions. However, in general, the matrix method can be applied to analyze the dependencies of functions on the blocks of code thus selected.The scientific novelty is connected with the determination of promising vectors for the study of software code for vulnerability, the rationale for the approach (building the transition matrix from integer values), which may be the initial stage of preparation for the automated analysis of the disassembled code.

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Lv, Dong Qing. "Finite Element Static Analysis of YP2080 Automatic Hydraulic Press." Applied Mechanics and Materials 556-562 (May 2014): 1046–49. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.1046.

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The paper took 2080 tons automatic hydraulic tile press as the research object, completed the finite element static analysis of its beam and base. Established their three-dimensional models with CAD software Pro/ENGINEER, and then analyzed the stress and transfiguration with CAE software ANSYS. Studied the distribution of the stress and strain, and found their maximum and location. The result can provide some good reference for design and optimization.

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Kataev, Nikita Andreevich, Alexander Andreevich Smirnov, and Andrey Dmitrievich Zhukov. "Investigation of Data Dependencies by Dynamic Analysis of Sapfor." Russian Digital Libraries Journal 23, no. 3 (May 9, 2020): 473–93. http://dx.doi.org/10.26907/1562-5419-2020-23-3-473-493.

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The use of pointers and indirect memory accesses in the program, as well as the complex control flow are some of the main weaknesses of the static analysis of programs. The program properties investigated by this analysis are too conservative to accurately describe program behavior and hence they prevent parallel execution of the program. The application of dynamic analysis allows us to expand the capabilities of semi-automatic parallelization. In the SAPFOR system (System FOR Automated Parallelization), a dynamic analysis tool has been implemented, based on on the instrumentation of the LLVM representation of an analyzed program, which allows the system to explore programs in both C and Fortran programming languages. The capabilities of the static analysis implemented in SAPFOR are used to reduce the overhead program execution, while maintaining the completeness of the analysis. The use of static analysis allows to reduce the number of analyzed memory accesses and to ignore scalar variables, which can be explored in a static way. The developed tool was tested on performance tests from the NAS Parallel Benchmarks package for C and Fortran languages. The implementation of dynamic analysis, in addition to traditional types of data dependencies (flow, anit, output), allows us to determine privitizable variables and a possibility of pipeline execution of loops. Together with the capabilities of DVM and OpenMP these greatly facilitates program parallelization and simplify insertion of the appropriate compiler directives.

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Bunus, Peter, and Peter Fritzson. "Automated Static Analysis of Equation-Based Components." SIMULATION 80, no. 7-8 (July 2004): 321–45. http://dx.doi.org/10.1177/0037549704046340.

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SNEZHKO, V. L., and D. M. BENIN. "AUTOMATED MEASURING COMPLEX FOR MONITORING THE LEVEL MODE OF CHANNELS AND ATMOSPHERIC PARAMETERS." Prirodoobustrojstvo, no. 5 (2022): 6–14. http://dx.doi.org/10.26897/1997-6011-2022-5-6-14.

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The modern concept of irrigation development in the Russian Federation is based on research and development works on the creation of new irrigation equipment and technologies. Particular emphasis is placed on the widespread introduction of automation, energy saving, the possibility of using modern digital solutions. The introduction of automation on reclamation systems in Russia is constrained not only by the low level of their technical condition, but also by the signifi cant remoteness of automation facilities from power supply sources. The purpose of the research is to develop an automated measuring complex capable of monitoring the level mode of an open reclamation network, atmospheric pressure and temperature with data transmission to the server and subsequent analysis of monitoring data for user-defined conditions. The developed automatic measuring complex can work both from batteries and from a renewable energy source – solar panels. The schematic diagram of the complex and the results of experimental tests of the prototype in laboratory and field conditions are given. The capabilities of a special computer program that analyzes monitoring data are described. The accuracy of measuring atmospheric pressure at a temperature of 25°C is ± 0.12 hPa. The accuracy of measuring the temperature of atmospheric air ± 1°C, measuring range lies within –40..+85°C. In the presence of wave phenomena and the absence of a float well, the main absolute error in measuring the level is 0.02 m. In tests at a height of the installation from 0.4 to 2.0 m above the static water level, the main absolute error is 0.01 m.

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Olender, K. M., and L. J. Osterweil. "Cecil: a sequencing constraint language for automatic static analysis generation." IEEE Transactions on Software Engineering 16, no. 3 (March 1990): 268–80. http://dx.doi.org/10.1109/32.48935.

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Salmi, Tapani, and Lea Leinonen. "Automatic analysis of sleep records with static charge sensitive bed." Electroencephalography and Clinical Neurophysiology 64, no. 1 (July 1986): 84–87. http://dx.doi.org/10.1016/0013-4694(86)90047-7.

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Huang, Ning, Shuguang Huang, and Chao Chang. "Automatic Generation of ROP Through Static Instructions Assignment and Dynamic Memory Analysis." International Journal of Digital Crime and Forensics 13, no. 2 (March 2021): 57–76. http://dx.doi.org/10.4018/ijdcf.2021030104.

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W⊕X is a protection mechanism against control-flow hijacking attacks. Return-oriented programming (ROP) can perform a specific function by searching for appropriate assembly instruction fragments (gadgets) in a code segment and bypass the W⊕X. However, manual search for gadgets that match the conditions is inefficient, with high error and missing rates. In order to improve the efficiency of ROP generation, the authors propose an automatic generation method based on a fragmented layout called automatic generation of ROP. This method designs new intermediate instruction construction rules based on an automatic ROP generation framework Q, uses symbolic execution to analyze program memory states and construct data constraints for multi-modules ROP, and solves ROP data constraints to generate test cases of an ROP chain. Experiments show that this method can effectively improve the space efficiency of the ROP chain and lower the requirements of the ROP layout on memory conditions.

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Zhang, Chunyan, Qinglei Zhou, Yizhao Huang, Ke Tang, Hairen Gui, and Fudong Liu. "Automatic Detection of Android Malware via Hybrid Graph Neural Network." Wireless Communications and Mobile Computing 2022 (May 11, 2022): 1–11. http://dx.doi.org/10.1155/2022/7245403.

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Automatic malware detection was aimed at determining whether the application is malicious or not with automated systems. Android malware attacks have gained tremendous pace owing to the widespread use of mobile devices. Although significant progress has been made in antimalware techniques, these methods mainly rely on the program features, ignoring the importance of source code analysis. Furthermore, the dynamic analysis is low code coverage and poor efficiency. Hence, we propose an automatic Android malware detection approach, named HyGNN-Mal. It analyzes the Android applications at source code level by exploiting the sequence and structure information. Meanwhile, we combine the typical static features, permissions, and APIs. In HyGNN-Mal, we utilize a deep traversal tree neural network (Deep-TNN) to process the code structure information. Particularly, we add position information to code sequence information before putting in self-attention mechanism. The evaluations conducted on multiple public datasets indicate that our method can accurately identify and classify the malicious software, and their best accuracy is 99.62% and 99.2%, respectively.

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Thomson, Patrick. "Static Analysis: An Introduction." Queue 19, no. 4 (August 31, 2021): 29–41. http://dx.doi.org/10.1145/3487019.3487021.

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Modern static-analysis tools provide powerful and specific insights into codebases. The Linux kernel team, for example, developed Coccinelle, a powerful tool for searching, analyzing, and rewriting C source code; because the Linux kernel contains more than 27 million lines of code, a static-analysis tool is essential both for finding bugs and for making automated changes across its many libraries and modules. Another tool targeted at the C family of languages is Clang scan-build, which comes with many useful analyses and provides an API for programmers to write their own analyses. Like so many things in computer science, the utility of static analysis is self-referential: To write reliable programs, we must also write programs for our programs. But this is no paradox. Static-analysis tools, complex though their theory and practice may be, are what will enable us, and engineers of the future, to overcome this challenge and yield the knowledge and insights that we practitioners deserve.

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Riggs, H. R., and T. Leraand. "Efficient Static Analysis and Design of Flexible Risers." Journal of Offshore Mechanics and Arctic Engineering 113, no. 3 (August 1, 1991): 235–40. http://dx.doi.org/10.1115/1.2919925.

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An improved cable element for static analysis is presented based on the equations of an elastic catenary. The element includes an algorithm for adaptive discretization when fluid drag forces are present. Hence, a single element can be used to model many marine cables, regardless of length. The element is applied to flexible riser analysis and preliminary design, which is automated by solving a nonlinear programming problem. Results demonstrate that a practical automated design method can be developed following the procedure presented here.

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César, Eduardo, Anna Morajko, Tomàs Margalef, Joan Sorribes, Antonio Espinosa, and Emilio Luque. "Dynamic Performance Tuning Supported by Program Specification." Scientific Programming 10, no. 1 (2002): 35–44. http://dx.doi.org/10.1155/2002/549617.

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Performance analysis and tuning of parallel/distributed applications are very difficult tasks for non-expert programmers. It is necessary to provide tools that automatically carry out these tasks. These can be static tools that carry out the analysis on a post-mortem phase or can tune the application on the fly. Both kind of tools have their target applications. Static automatic analysis tools are suitable for stable application while dynamic tuning tools are more appropriate to applications with dynamic behaviour. In this paper, we describe KappaPi as an example of a static automatic performance analysis tool, and also a general environment based on parallel patterns for developing and dynamically tuning parallel/distributed applications.

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Heckman, Sarah Smith. "Adaptively ranking alerts generated from automated static analysis." XRDS: Crossroads, The ACM Magazine for Students 14, no. 1 (September 2007): 1–11. http://dx.doi.org/10.1145/1349332.1349339.

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Craven, Mark A., and Julian W. Gardner. "Rapid static headspace sampler for automated odour analysis." Transactions of the Institute of Measurement and Control 20, no. 2 (April 1998): 67–73. http://dx.doi.org/10.1177/014233129802000203.

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Zhang, Hui Feng, Li Wen Guan, and Tie Min Li. "Dynamic Analysis and Optimization of Automatic Tape-Laying (ATL) Machine for Cylinder Components." Applied Mechanics and Materials 138-139 (November 2011): 9–14. http://dx.doi.org/10.4028/www.scientific.net/amm.138-139.9.

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The structure of an automatic tape-laying (ATL) machine for cylinder components is introduced. The FEM model is established and static stiffness, modal, harmonic response analysis are performed. The improvement scheme is given based on the above analysis result, with better static and dynamic characteristics by increasing cross-sectional area.

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Han, Seung Ho, So Young Shin, Tae Hee Lee, Sang Boo Lee, and Tae Woo Kwon. "Fatigue Durability Analysis Based on FE Modeling Support System for Arc-Welded Members in Automobile Suspension Module." Key Engineering Materials 353-358 (September 2007): 2065–68. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.2065.

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In an early stage of design process for the lower arm in automobile suspension module, an easy and fast FE modeling, static and durability analysis supported by parametric study considering its geometric changes are required. The FE modeling support system has been developed, which is implemented on the platform of MSC.Patran. The CAD file produced by taking into account of automatic 3D parametric model in CATIA V5 can be transferred to this system. For the process automation of various design activities including the parametric study, human interactions are excluded practically, in which all processes are dealt with the XML-wrapper, and in- and output data are linked each other and treated in the engineering data management. The developed FE modeling support system reduces time and cost to design and analyze engineering problems.

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Wang, Zhong Shuang, Yang Yang Tao, and Quan Yi Wen. "A Vector Bond Graph Method of Kineto-Static Analysis for Spatial Multibody Systems." Applied Mechanics and Materials 321-324 (June 2013): 1725–29. http://dx.doi.org/10.4028/www.scientific.net/amm.321-324.1725.

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In order to increase the reliability and efficiency of the kineto-static analysis of complex multibody systems, the corresponding vector bond graph procedure is proposed. By the kinematic constraint condition, spatial multibody systems can be modeled by vector bond graph. For the algebraic difficulties brought by differential causality in system automatic kineto-static analysis, the effective decoupling method is proposed, thus the differential causalities in system vector bond graph model can be eliminated. In the case of considering EJS, the unified formulae of driving moment and constraint forces at joints are derived based on vector bond graph, which are easily derived on a computer in a complete form and very suitable for spatial multibody systems. As a result, the automatic kineto-static analysis of spatial multibody system on a computer is realized, its validity is illustrated by the spatial multibody system with three degrees of freedom.

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Han, Liang, Jia Li, and Lei Xiang Zhang. "Design and Study on the Automatic Extrusion Device for Curved Chassis of Vibratory Feeder." Applied Mechanics and Materials 198-199 (September 2012): 1298–301. http://dx.doi.org/10.4028/www.scientific.net/amm.198-199.1298.

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Vibratory feeder is a device which is used to arrange small workpieces in neat rows and convey them from one place to another by vibratory feeding. It has been playing a key role in automation production. According to manufacturing equipments for the chassis of vibratory bowl feeder, this paper makes studies mainly in the followings: (1) introduces the principle of the vibratory feeder briefly, (2) the mechanical structure of the automatic extrusion device for curved chassis of vibratory feeder is designed, including frame, moulds and guiding mechanism, (3) static analysis, mould stress analysis are done by using the finite software ANSYS, (4) based on the electro-hydraulic proportional control technology, a hydraulic system is designed, (5) a control system based on STC89C52RC MCU(Micro Control Unit) is given. The problems of automatic extrusion for the curved chassis of vibratory feeder are successfully solved through the theoretical and experimental studies, which achieves the expected design goals and fills in a gap in this field in China, which brings great economic and social potential benefits and has wide application prospect.

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Kim, Sungjoong, Seongkyu Yeom, Haengrok Oh, Dongil Shin, and Dongkyoo Shin. "Automatic Malicious Code Classification System through Static Analysis Using Machine Learning." Symmetry 13, no. 1 (December 28, 2020): 35. http://dx.doi.org/10.3390/sym13010035.

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The development of information and communication technology (ICT) is making daily life more convenient by allowing access to information at anytime and anywhere and by improving the efficiency of organizations. Unfortunately, malicious code is also proliferating and becoming increasingly complex and sophisticated. In fact, even novices can now easily create it using hacking tools, which is causing it to increase and spread exponentially. It has become difficult for humans to respond to such a surge. As a result, many studies have pursued methods to automatically analyze and classify malicious code. There are currently two methods for analyzing it: a dynamic analysis method that executes the program directly and confirms the execution result, and a static analysis method that analyzes the program without executing it. This paper proposes a static analysis automation technique for malicious code that uses machine learning. This classification system was designed by combining a method for classifying malicious code using a portable executable (PE) structure and a method for classifying it using a PE structure. The system has 98.77% accuracy when classifying normal and malicious files. The proposed system can be used to classify various types of malware from PE files to shell code.

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Yan, Dongmei. "Research of Automatic Scoring of Student Programs Based on Static Analysis." Journal of Electrical and Electronic Engineering 6, no. 2 (2018): 53. http://dx.doi.org/10.11648/j.jeee.20180602.13.

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Jeusette, Jean-Pierre, Gottfried Laschet, and Sergio Idelsohn. "An effective automatic incremental/iterative method for static nonlinear structural analysis." Computers & Structures 32, no. 1 (January 1989): 125–35. http://dx.doi.org/10.1016/0045-7949(89)90077-1.

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Gargot, T. "Diagnostic automated algorithms in neurodevelopmental disorders: Focus on automatic motor assessment." European Psychiatry 64, S1 (April 2021): S18—S19. http://dx.doi.org/10.1192/j.eurpsy.2021.72.

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Difficulties in motor development are frequent and impairing. However, the assessment of these motor learning skills is difficult and limits early stage rehabilitation. Electronic sensors and algorithms can help to measure motor difficulties more easily and objectively. We will present a systematic review detailing these methods and challenges in Autism Spectrum Disorders (ASD). Electronic tablets, give access to handwriting features that are not usually evaluated in classical assessments. We describe how such digital features (in static, dynamic, pressure, and tilt domains) allow diagnosing dysgraphia and how they evolve during children development. From a finer analysis, three different clusters of dysgraphia emerge, longitudinal studies will allow to underline different patterns of development that seemingly require tailored remediation strategies. However, those digital features are not used in the context of conventional pen and paper therapies. It is possible to engage children with typical development in handwriting exercises by asking them to teach a robot to write. We implemented a long-term case study (20 sessions, 500 minutes in total) observing a child with severe Developmental Co-ordination Disorder who did not progress anymore with a classic pen and paper approach by enriching this setup with various training activities using real-time feedback loops (on tilt, pressure, dynamic, pauses). We show how this new method tackles previous child’s behaviour avoidances, boosting his motivation, and improving his motor and writing skills. This talk demonstrates how new motor digital features allow the implementation of innovative motor remediation interventions, which rely on fostering children’s personal characteristics and adaptation skills.DisclosureThe work presented in this talk was conducted during a PhD in computer science (funded by APHP and Paris 8 University, France). A company was funded by a PhD collaborator, dynamico.ch. The presenter does not have consultancy or financial connection with d

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Xi, Yan, and Qin Xing. "Automatic Electromechanical Control System Based on PLC Technology." Journal of Physics: Conference Series 2143, no. 1 (December 1, 2021): 012037. http://dx.doi.org/10.1088/1742-6596/2143/1/012037.

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Abstract With the continuous progress of science and technology, China is transforming into the field of industrial automation, striving to contribute to the liberation of labor force and the realization of assembly line industrial automation. The operation of the traditional automatic electromechanical control system(AECS) still needs a lot of manual operation, which is difficult to realize the development of all automation of electromechanical control. The new AECS proposed at present is to realize the automation, intelligent and remote control of electromechanical control system, and truly take the control system as the center for electromechanical control production.Therefore, this paper puts forward the design and application of AECS based on PLC technology. Through research, this paper expounds the AECS based on PLC technology and its application. PLC technology can realize automation and integrated control in system control, compact structure, and can accommodate the conversion of many digital signals to realize its control function of the system, study the software design of AECS, mainly design the input interface and output interface. In order to understand the application and performance of PLC technology in automatic electromechanical system, this paper compares and analyzes the fuzzy PID control error of PLC technology and the performance of AECS based on PLC technology with traditional AECS. The experimental results show that in the comparative analysis of simulation experiments between the performance of AECS based on PLC technology and traditional AECS, the proportion coefficient of traditional AECS is 1.63, the integral time constant is -1.06, and the differential time constant is 0.29, while the proportion coefficient of AECS based on PLC technology is 0.56, the integral time constant is 0.37 and the differential time constant is 1.18. The deviation of AECS based on PLC technology is smaller than that of traditional automatic electromechanical control, and the static error is also smaller, but its response speed is faster and its performance is better.

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Liu, Guosong, and Junlin Wang. "Improvement of Automatic Calculation Method of CASE Bearing Capacity." Advances in Civil Engineering 2021 (August 27, 2021): 1–8. http://dx.doi.org/10.1155/2021/3667193.

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Because of the reliance on the empirical parameter CASE damping coefficient Jc, the high-strain CASE method is not recommended. The automatic bearing capacity calculation method RAU can avoid this, but it cannot be applied to friction piles. Based on the analysis of the automatic calculation method of bearing capacity RAU, considering the influence of pile side soil resistance unloading, this paper improved the RAU method through the influence of pile side soil damping on the velocity of the pile mass point during the stress wave propagation process. In this paper, we compare the collected static load test results of test piles with the improved automatic method results. The unary linear regression analysis is carried out with the help of statistical tools. The unary linear regression of the improved automatic method bearing capacity results on the static load test bearing capacity results is established. The improved automatic method solves the problem that the RAU method is only applicable to end-bearing piles and can be applied to the quality analysis and bearing capacity calculation of the high-strain curve of the driven pile.

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Syaifudin, Achmad, Betti Mawar Kalista, and Agus Windharto. "Analisis deformasi pada coupling element dari automatic mechanical coupler: studi kasus LRT Palembang." Jurnal Teknik Mesin Indonesia 14, no. 2 (October 7, 2019): 58. http://dx.doi.org/10.36289/jtmi.v14i2.132.

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Coupler merupakan komponen yang menyambungkan gerbong kereta. Kekuatan coupler terhadap beban eksepsional dan ketahanannya terhadap beban kerja normal menjadi parameter keamanan yang sangat penting dalam operasinya. Kajian ini melakukan analisis deformasi secara numerik terhadap coupling element dari automatic mechanical coupler yang digunakan pada tipe kereta ringan (Light Rail Transit, LRT) berdasarkan beban aktual yang diterima. Bagian coupling element yang diteliti adalah coupling link dan hooked plate. Model solid 3D dibuat tanpa penyederhanaan untuk hasil simulasi yang lebih mendekati fenomena aktual. Material isotropik yang digunakan adalah baja ASTM A633 Grade E. Simulasi statis dan transien dilakukan untuk mendapatkan faktor keamanan statik dan dinamik. Simulasi fatik dari analisis pembebanan transien dengan tiga mode pembebanan dilaksanakan untuk memperkirakan umur kerja coupling element. Hasil simulasi menunjukkan bahwa coupling element yang diobservasi aman terhadap beban eksepsional dan normal yang diberikan. Selain itu, simulasi mengindikasikan bahwa komponen yang kritis berdasarkan tegangan von Mises maksimum adalah coupling link dan komponen yang kritis berdasarkan siklus umur adalah hooked plate.

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Schlie, Alexander, Safa Bougouffa, Juliane Fischer, Ina Schaefer, and Birgit Vogel-Heuser. "Change analysis on evolving PLC software in automated production systems." at - Automatisierungstechnik 66, no. 10 (October 25, 2018): 806–18. http://dx.doi.org/10.1515/auto-2018-0037.

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Abstract Control software for automated Production Systems (aPSs) becomes increasingly complex. Respective systems undergo constant evolution. Yet, proper documentation may not always be present, entailing maintenance issues in the long run. While manual examination of software for aPSs is an error-prone task, static analysis can improve system quality. However, it has not been applied to describe software evolution by means of changed systems artifacts. The authors address this issue and perform change analyses on IEC61131-3 projects, identifying introduced and removed systems artifacts as well as existing ones affected. By that, the authors aim to support sustainable evolution. Two feasibility studies, implemented independently, but for the same evolution scenarios for an automation plant, are used for evaluation. The technique is shown to be efficient and highly precise.

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Поляков, Александр, Aleksandr Polyakov, Антон Гончаров, Anton Goncharov, Игорь Парфёнов, and Igor' Parfenov. "TECHNIQUE FOR CORRECTION OF CNC MACHINE TOOL TEMPERATURE ER-ROR." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 4, no. 3 (April 10, 2019): 117–27. http://dx.doi.org/10.34031/article_5ca1f634ef76c8.31770383.

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The work is devoted to the issue of ensuring the accuracy of processing on machine tools with numerical control due to the correction of the temperature error. The construction of a system for correcting the temperature error of a tool using the automatic part measurement of device is considered. Analysis of various sources shows the method for correcting machining errors, caused by static and dynamic factors and based on the technology of automatic measurement of the part on the machine is considered in the literature. However, the issues of correction the temperature error using the technology of automatic measurement of tool parts in the open press are presented insufficiently for practical implementation. Therefore, this paper presents the developed methodology for the practical implementation of control algorithms for machine tool working elements that compensate its temperature error using automatic part measurement technology. The methodology contains seven main stages, covering four areas of work: experimental; mathematical program; measurement and preparation of control programs for machine tools with numerical program control. It is proved that the presented method allows developing an individual automated system for correcting the resulting temperature error for any machine. The most important areas for increasing the efficiency of such a system are to ensure the completeness of the experimental base and the accuracy of setting algorithms for correcting the temperature error of the machine.

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Ivković, Milan, Vladimir Milovanović, Bogdan Nedić, and Stefan Đurić. "Load of remote controlled battle station upper carriage with integrated automatic grenade launcher." Scientific Technical Review 72, no. 2 (2022): 27–31. http://dx.doi.org/10.5937/str2202027i.

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The paper presents a numerical analysis, using the finite element method, for the case of static and dynamic loading of the upper carriage of the remote-controlled combat station, due to the recoil force generated by the operation of the integrated automatic grenade launcher 30mm M93. The paper describes the problem of integrating the BGA 30mm M93 automatic grenade launcher onto the combat platform, and based on the dimensions of the automatic launcher, modeling of the automatic launcher stand with cradle was carried out. As a result of the weapon dynamics equations and internal ballistics calculations, the pressure force of the gunpowder gases and the recoil force of the automatic grenade launcher were calculated. The paper also presents the results of the dynamic analysis of the finite element model of the upper gun carriage loaded with the obtained impulse recoil force for different elevation angles of the weapon.

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Gimatdinov, Damir Maratovich, Alexander Yurievich Gerasimov, Petr Alekseevich Privalov, Veronika Nikolaevna Butkevich, Natalya Andreevna Chernova, and Anna Antonovna Gorelova. "An Automated Framework for Testing Source Code Static Analysis Tools." Proceedings of the Institute for System Programming of the RAS 33, no. 3 (2021): 41–50. http://dx.doi.org/10.15514/ispras-2021-33(3)-3.

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Automated testing frameworks are widely used for assuring quality of modern software in secure software development lifecycle. Sometimes it is needed to assure quality of specific software and, hence specific approach should be applied. In this paper, we present an approach and implementation details of automated testing framework suitable for acceptance testing of static source code analysis tools. The presented framework is used for continuous testing of static source code analyzers for C, C++ and Python programs.

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Wang, Tiantian, Djoko Budi Santoso, Kechao Wang, and Xiaohong Su. "Automatic Grading for Complex Multifile Programs." Complexity 2020 (June 13, 2020): 1–15. http://dx.doi.org/10.1155/2020/3279053.

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This paper presents an automatic grading method DGRADER, which handles complex multifile programs. Both the dynamic and the static grading support multifile program analysis. So, it can be an advantage to handle complex programming problem which requires more than one program file. Dynamic analysis takes advantage of object file linker in compilation to link complex multifile program. The static grading module consists of the following steps. Firstly, the program is parsed into abstract syntax tree, which is mapped into abstract syntax tree data map. Then, the information of preprocessor is used for linking external sources called in main program by complex multifile program linker-fusion algorithm. Next, standardization process is performed for problematic code removal, unused function removal, and function sequence ordering based on function call. Finally, program matching successfully tackles structure variance problem by previous standardization process and by simple tree matching using tag classifier. The novelty of the approach is that it handles complex multifile program analysis with flexible grading with consideration of modularity and big scale of programming problem complexity. The results have shown improvement in grading precision which gives reliable grading score delivered with intuitive system.

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Zougari, Soundous, Mariam Tanana, and Abdelouahid Lyhyaoui. "Validity of a graph-based automatic assessment system for programming assignments: human versus automatic grading." International Journal of Electrical and Computer Engineering (IJECE) 12, no. 3 (June 1, 2022): 2867. http://dx.doi.org/10.11591/ijece.v12i3.pp2867-2875.

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<span>Programming is a very complex and challenging subject to teach and learn. A strategy guaranteed to deliver proven results has been intensive and continual training. However, this strategy holds an extra workload for the teachers with huge numbers of programming assignments to evaluate in a fair and timely manner. Furthermore, under the current COVID-19 distance teaching circumstances, regular assessment is a fundamental feedback mechanism. It ensures that students engage in learning as well as determines the extent to which they reached the expected learning goals, in this new learning reality. In sum, automating the assessment process will be particularly appreciated by the instructors and highly beneficial to the students. The purpose of this paper is to investigate the feasibility of automatic assessment in the context of computer programming courses. Thus, a prototype based on merging static and dynamic analysis was developed. Empirical evaluation of the proposed grading tool within an introductory C-language course has been presented and compared to manually assigned marks. The outcomes of the comparative analysis have shown the reliability of the proposed automatic assessment prototype.</span>

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SZABOLCSI, Róbert. "HANDLING DYNAMIC NONLINEARITIES IN UAV AUTOMATIC FLIGHT CONTROL SYSTEMS." Review of the Air Force Academy XX, no. 1 (December 22, 2022): 43–52. http://dx.doi.org/10.19062/1842-9238.2022.20.1.5.

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The linear or the nonlinear feature of systems being modelled or designed is a core property we should be familiar with before taking up any system design or analysis-related task. The dynamic model-based closed loop control design is widely used in control engineering when dynamic or static nonlinearities are considered to be present in the closed loop control system. This paper addresses both dynamical and static nonlinearities modelled and handled in the closed loop control system

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Ju, Jin San, Xiu Gen Jiang, and Xiang Rong Fu. "Fracture Analysis for Damaged Aircraft Fuselage Subjected to Blast." Key Engineering Materials 348-349 (September 2007): 705–8. http://dx.doi.org/10.4028/www.scientific.net/kem.348-349.705.

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This paper primarily presents the development and application of automation computational analysis techniques to determine the dynamic stress intensity factor for the damaged aircraft fuselage subjected to triangle blast load. A program based on automated procedure to simulate cracked fuselage is developed. It may create 3-dimention panel model using parameterization. The stress around the crack tips will be captured and the dynamic stress intensity factor can be obtained at every moment of the blast automatically. A typical curved panel model which consists of 7 frames and 8 stringers is calculated. The calculation results shown that the form of the dynamic SIF curve is similar to that of the triangle load curve while the peak point of dynamic SIF curve occurs a little later than that of the load curve due to the inertia effect. The longer the crack is, the more obvious the effect is. The peak SIF value of the crack under blast load is bigger than that under the static load for certain crack length. The longer the crack is, the bigger the difference between the dynamic peak SIF value and static SIF is. At the same time, the load time has effect on the dynamic SIF curve and its peak value. These results show good agreements with theoretical principles.

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Lv, Dong Qing. "The Finite Element Analysis on the Crossbeam of Full Automatic Hydraulic Tile Press." Advanced Materials Research 605-607 (December 2012): 397–400. http://dx.doi.org/10.4028/www.scientific.net/amr.605-607.397.

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Completed the finite element static analysis on the crossbeam of a certain type of automatic hydraulic tile press and discussed stress and transfiguration of the crossbeam. The result can provide reference for design, and the discussion will be useful for mechanical engineering.

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Pavlenko, Ivan. "Static and Dynamic Analysis of the Closing Rotor Balancing Device of the Multistage Centrifugal Pump." Applied Mechanics and Materials 630 (September 2014): 248–54. http://dx.doi.org/10.4028/www.scientific.net/amm.630.248.

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In this paper the methods of static and dynamic analysis of the closing rotor balancing device of the multistage centrifugal pump are represented. On an example of the feed pump PE 600-300 static and dynamic characteristics are determined. Defined the resonance frequencies and investigated stability of the system “pump rotor – automatic balancing device – pressure difference regulator”. The dependence for the pressure difference and conditions to ensure reliable operation of the locking rotor balancing device are determined.

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Song, Tianhong, Sven Köhler, Bertram Ludäscher, James Hanken, Maureen Kelly, David Lowery, James A. Macklin, Paul J. Morris, and Robert A. Morris. "Towards Automated Design, Analysis and Optimization of Declarative Curation Workflows." International Journal of Digital Curation 9, no. 2 (October 29, 2014): 111–22. http://dx.doi.org/10.2218/ijdc.v9i2.337.

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Data curation is increasingly important. Our previous work on a Kepler curation package has demonstrated advantages that come from automating data curation pipelines by using workflow systems. However, manually designed curation workflows can be error-prone and inefficient due to a lack of user understanding of the workflow system, misuse of actors, or human error. Correcting problematic workflows is often very time-consuming. A more proactive workflow system can help users avoid such pitfalls. For example, static analysis before execution can be used to detect the potential problems in a workflow and help the user to improve workflow design. In this paper, we propose a declarative workflow approach that supports semi-automated workflow design, analysis and optimization. We show how the workflow design engine helps users to construct data curation workflows, how the workflow analysis engine detects different design problems of workflows and how workflows can be optimized by exploiting parallelism.

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Pradhan, S. K., Amit Kumar, and A. N. Sinha. "Some Analysis of Automated Guided Vehicle." Applied Mechanics and Materials 592-594 (July 2014): 2225–28. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.2225.

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AGV is mostly used in industrial application to move material around manufacturing facility. Here assembling of AGV is done by using components like chassis, wheels, wiper motors, gear motor, LED sensors, tactile sensor, actuators etc. AGV is designed with the help of electrical design of sensors which are used to control AGV during operation when it is moved on guided path. AGV design was modelled and simulated using catiaV5 software .Design was modelled and drawing preparation was done using catiaV5.Static analysis was done for stress using catiaV5 .Here principal stresses at different point were obtained having different deflection .Graphs are plotted for principal stress verses deflection and Navigation performance of AGV uses electric motor .Thus AGV is used to pick up the object with proper gripping system. A navigation system has been developed using sensors. AGV contains software and hardware components and is primarily used for material handling in industries. Static analysis was done for stress using catiaV5. Graphs are plotted for principal stress vs. deflection. The same analysis can be done for different material depending on loading condition. Stress analysis concept can be used to study dynamic analysis. Optimization of AGV can be possible by using different material. To evaluate the performance simulations were conducted using catiaV5 maintaining a constant setup inputs all over. IndexTerms:Catia,navigation,optimization

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Wang, Ya Ning, and Lan Nan Xiao. "Research on Automatic Scoring Methods for Programs Based on Program Understanding." Applied Mechanics and Materials 513-517 (February 2014): 2054–58. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.2054.

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This paper discusses three general automatic scoring algorithms including software quality metric algorithm, dynamic testing algorithm and static analysis algorithm based on program understanding, analyzes and designs their rationality, practicality and maneuverability. Therefore, a new automatic scoring strategy which combines dynamic testing and pattern matching based on program understanding is proposed. This method focuses on the accurate expressions on program algorithm and semantic points in student program, enhances the performance of the automatic scoring system and matches the idea of manual scoring better.

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Liu, Yun Han, Zhang Yong Wu, Xian Wang, Zhen Hua Duan, Xiao Yan Gao, and Jin Tao Qu. "Design and Performance Analysis Based on High-Speed Switching Valve of Magnetorheological Plug-Mounted." Advanced Materials Research 630 (December 2012): 106–9. http://dx.doi.org/10.4028/www.scientific.net/amr.630.106.

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Based on the rheological mechanism of magnetorheological fluid，we can design a kind of magnetorheological high-speed on-off valves,which used the Plug-in structure.It is shows that， through the static and dynamic performance analysis of the valves，the magnetorheological high-speed on-off valves not only has the good static, dynamic characteristics, compare to magnetorheological plug-mounted speed switch valve with traditional hydraulic, and with high speed of response, high stability, etc . It is an easy to achieve automatic control and intelligent control of the hydraulic components.

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Journal articles on the topic 'Automatic Static Analysi'

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