Journal articles: 'Test stand design'

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Guangyu Liu and T. L. King. "Design of a material ablation test stand." IEEE Transactions on Magnetics 37, no. 1 (2001): 252–56. http://dx.doi.org/10.1109/20.911832.

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Pakosta, Jiří, and Gabriela Achtenová. "Joint Shaft Test Stand." Journal of Middle European Construction and Design of Cars 15, no. 1 (June 27, 2017): 11–14. http://dx.doi.org/10.1515/mecdc-2017-0003.

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Abstract The article focuses on description of design of the test stand for shafts with universal joints and constant velocity joints. The shafts can be loaded by torque at specified speed of rotation, while retaining the possibility of setting a variable angle between input and output. All shafts are instrumented with contactless signal transmission. In addition, ventilator simulates the cooling derived from the driving speed.

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Wojtas, Małgorzata, Łukasz Czajkowski, and Kazimierz Szumański. "Ground Test Stands for Testing Rotors in Insulated Conditions." Transactions on Aerospace Research 2021, no. 1 (March 1, 2021): 15–23. http://dx.doi.org/10.2478/tar-2021-0002.

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Abstract The paper generally discusses Whirl Tower research stands. Whirl Tower stands are used to test, among others, rotorcrafts main rotors in hovering. The work presents an overview of similar solutions of test stand presented in the available literature and online data. Beyond these solutions the paper also contains test stands used so far at the Institute of Aviation, these solutions were prepared for testing one type of rotor (for example: only for gyroplane rotors). The article provides information about new (Whirl Tower) test stand fully designed and manufactured in Łukasiewicz Research Network ‒ Institute of Aviation (Ł-ILOT). One of the basic assumptions is that it will be a universal test stand, giving the possibility to test different types of rotors. Moreover, the article discusses the types of tests and research that can be carried out on this type of test stand, tests that are performed to ensure the safety of the rotor design.

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Kai, Zhou, Wang Xu dong, Zhang Chao, and Liu Jian. "System design of ABS dynamic simulation test stand." International Journal of Vehicle Systems Modelling and Testing 5, no. 2/3 (2010): 197. http://dx.doi.org/10.1504/ijvsmt.2010.037126.

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Bonisławski, Michał, and Marcin Hołub. "Teaching modern power electronics-Computerized test stand design." Computer Applications in Engineering Education 26, no. 4 (April 14, 2018): 928–37. http://dx.doi.org/10.1002/cae.21936.

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Yan Haifeng, Shu Fengxiang, and Cheng Zhihong. "Design on Synthetic Test Stand for Colliery Hydraulic Support." International Journal of Advancements in Computing Technology 3, no. 10 (November 30, 2011): 395–402. http://dx.doi.org/10.4156/ijact.vol3.issue10.49.

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DUDZIK, Sebastian. "Test stand to design control algorithms for mobile robots." PRZEGLĄD ELEKTROTECHNICZNY 1, no. 3 (March 1, 2021): 37–40. http://dx.doi.org/10.15199/48.2021.03.06.

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Fasel, D., S. Alberti, T. Bonicelli, R. Cleasen, T. Goodman, J. P. Hogge, A. Perez, et al. "Design study of a test stand for ITER gyrotron." Fusion Engineering and Design 66-68 (September 2003): 555–60. http://dx.doi.org/10.1016/s0920-3796(03)00123-6.

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Bocian, Mirosław, Jerzy Kaleta, Daniel Lewandowski, and Michał Przybylski. "DESIGN CONCEPT OF TEST STAND FOR DETERMINING PROPERTIES OF MAGNETORHEOLOGICAL ELASTOMERS." Acta Mechanica et Automatica 7, no. 3 (September 1, 2013): 131–34. http://dx.doi.org/10.2478/ama-2013-0022.

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Abstract Magnetorheological elastomers (MRE) are “SMART” materials that change their mechanical properties under influence of magnetic field. Thanks to that ability it is possible to create adaptive vibration dampers based on the MRE. To test vibration damping abilities of this material special test stand is required. This article presents design concept for such test stand with several options of testing.

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Beharie, M. M., J. O. Pedro, and L. Dala. "Design of a quadrotor flight test stand for system identification." Aeronautical Journal 119, no. 1214 (April 2015): 501–21. http://dx.doi.org/10.1017/s0001924000010587.

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AbstractThis paper presents the design, development and construction of a flight test stand for a quadrotor UAV. As opposed to alternate forms of UAV, the power plant in the case of the quadrotor serves a dual purpose of control and propulsion. Since control and propulsion are coupled, the power plant (BLDC motor coupled with propeller) was studied in detail using a black box structure. Extractions of motor parameters in previous studies used traditional BLDC motor equations and propeller theory however the accuracy achievable and confidence in the extracted parameters remained questionable. The developed data acquisition process served to satisfy this need by the construction of a test bench that allows for the extraction of the unknown parameters instilling confidence in the modelling process. The established relationships are then used as inputs into a developed six degree of freedom Euler based mathematical model. A mission profile was constructed with distinct phases of which the mathematical model was used to simulate. Each phase in the mission profile excited different modes of the quadrotor dynamics creating an ideal simulation environment in which changes can be implemented and studied.

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IDZIOR, Marek, Wojciech KARPIUK, Maciej BIELIŃSKI, Tomasz BOROWCZYK, Paweł DASZKIEWICZ, and Paweł STOBNICKI. "A concept of a turbocharger test stand." Combustion Engines 156, no. 1 (February 1, 2014): 30–40. http://dx.doi.org/10.19206/ce-116950.

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The paper presents selected possibilities of vehicle turbocharger testing using an exhaust gas generator (based on a passenger vehicle) designed in the laboratory on the engine test bed. An outline of the range of turbocharger testing, the design and main characteristics of the test stand have been described. Several validation tests have been presented in terms of the technical parameters, operativeness, and functionality. Basic parameters of the engine have been analyzed that have impact on the turbocharger speed.

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Wojtas, Małgorzata, and Łukasz Czajkowski. "A Prototype Test Stand for Testing Insolated Rotor Systems." Journal of KONES 26, no. 3 (September 1, 2019): 257–64. http://dx.doi.org/10.2478/kones-2019-0081.

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Abstract The article discusses assumptions for a prototype test stand designed for testing rotors in the conditions of work at their nominal speed, in particular gyrocopter and helicopter rotors. In the work presents an overview of similar solutions of test stand presented in the available literature and solutions proposed by companies, such as Swangate International or Luftfahrttechnik GmbH. Beyond these solutions the article also contains test stand used so far at the Institute of Aviation, these solutions were prepared for testing one type of rotor (for example: only for gyroplane rotors). The article provides the steps of designing a new test stand, which one of the basic assumptions is that it will be a universal test stand, giving the possibility to test different types of rotors. The article discusses two concepts of the stand with electric engine as a drive, gives the advantages and disadvantages of each concept, and indicates the selected solution. In addition to design and applied drive solution of the stand, the measuring part and data acquisition were also discussed. Moreover, the article focus on the advantages of rotor testing using the presented solution, as well as problems encountered during tests, in particular related to construction free vibrations and resonance. Vibration and resonance of the test stand are very important aspect of the entire design process, because it affects the quality and safety of the tests.

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Petranský, I., and M. Bolla. "Testing stand for life tests of hydrostatic pumps with a polluted fluid." Research in Agricultural Engineering 49, No. 4 (February 8, 2012): 151–56. http://dx.doi.org/10.17221/4966-rae.

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Testing of the lifetime of hydrostatic transmissions can be done on special testing stands. Some testing stands use a pressure valve connected at the outlet of a pump. When using this design of stands, it is important to keep clear the operating fluid by filters and it is not possible to observe the influence of fluid pollution on the lifetime. The article presents a design of an electro-hydraulic testing stand with computer control system for accelerated lifetime tests of hydrostatic pumps under laboratory conditions when using a polluted operating fluid. A pump, which is mechanically connected with a hydrostatic motor, through a clutch, is an interface between the hydrostatic circuit of the tested pump and the hydrostatic circuit of the loading simulator. At lifetime testing, this interface makes it possible to use the polluted fluid in the hydraulic circuit of the tested pump, and thereby observe its influence. Instead of a polluted fluid, it is possible to use biodegradable oil and observe its influence on the lifetime of a pump. When using the same hydraulic fluid in both systems of the stand, it is possible to test two pumps at the same time.

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Stryczniewicz, W., and W. Stalewski. "Test stand for pulsed jet actuator command and characterization." Journal of Physics: Conference Series 2130, no. 1 (December 1, 2021): 012031. http://dx.doi.org/10.1088/1742-6596/2130/1/012031.

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Abstract The paper presents a test stand for characterization of a new design of a Pulsed Jet Actuator. The aim of the work was to characterize the performance of the PJA in terms of air parameters in the air supply line and velocity at the PJA outlet. To perform a detailed characterization of the system performance, the test bench comprised: a pressure reductor, a mass flow rate controller, a mass flow rate meter, a pressure sensor, a fast pressure sensor, a flow temperature sensor and a Constant Temperature Anemometer. The PJA was commanded by a real time controller with Field Programmed Gate Array architecture. The experimental results show good agreement with the results of Computational Fluid Dynamics simulations performed at the design stage of the PJA. It has been found that the flow parameters at the PJA nozzle outlet match the design goals. The developed bench testing procedures will be used for silent conditions tests of the PJA system integrated into a leading edge of a wind tunnel model.

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Lutz, T. J., P. T. Bissert, G. T. Homce, and J. A. Yonkey. "Refuge alternatives relief valve testing and design with updated test stand." Mining Engineering 70, no. 3 (March 1, 2018): 46–50. http://dx.doi.org/10.19150/me.8136.

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KANDA, Takeshi, Yohei OGAWA, Daizo SUGIMORI, and Makoto KOJIMA. "Conceptual Design Model of High-Altitude Test Stand for Rocket Engines." TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 59, no. 3 (2016): 161–69. http://dx.doi.org/10.2322/tjsass.59.161.

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Jakubowski, Arkadiusz, Arkadiusz Kubacki, and Dominik Rybarczyk. "Design of The Test Stand for Hydraulic Active Heave Compensation System." Archives of Mechanical Technology and Materials 37, no. 1 (January 26, 2017): 76–78. http://dx.doi.org/10.1515/amtm-2017-0012.

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AbstractThe article presented here described the design of a test stand for hydraulic active heave compensation system. The simulation of sea waves is realized by the use of hydraulic cylinder. A hydraulic motor is used for sea waves compensation. The hydraulic cylinder and the hydraulic motor are controlled by electrohydraulic servo valves. For the measurements Authors used displacement sensor and incremental encoder. Control algorithm is implemented on the PLC. The performed tests included hydraulic actuator and hydraulic motor step responses.

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Nimura, Kohhei, and Marcin Adamczyk. "Methodology for Designing an Optimal Test Stand for Camera Thermal Drift Measurements and Its Stability Verification." Sensors 22, no. 24 (December 19, 2022): 9997. http://dx.doi.org/10.3390/s22249997.

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The effects of temperature changes on cameras are realized by observing the drifts of characteristic points in the image plane. Compensation for these effects is crucial to maintain the precision of cameras applied in machine vision systems and those expected to work in environments with varying factors, including temperature changes. Generally, mathematical compensation models are built by measuring the changes in the intrinsic and extrinsic parameters under the temperature effect; however, due to the assumptions of certain factors based on the conditions of the test stand used for the measurements, errors can become apparent. In this paper, test stands for thermal image drift measurements used in other works are assessed, and a methodology to design a test stand, which can measure thermal image drifts while eliminating other external influences on the camera, is proposed. A test stand was built accordingly, and thermal image drift measurements were performed along with a measurement to verify that the test stand did eliminate external influences on the camera. The experiment was performed for various temperatures from 5 °C to 45 5 °C, and as a result, the thermal image drift measured with the designed test stand showed its maximum error of 16% during its most rapid temperature change from 25 °C to 5 °C.

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Ducey, Mark J. "The Ratio of Additive and Traditional Stand Density Indices." Western Journal of Applied Forestry 24, no. 1 (January 1, 2009): 5–10. http://dx.doi.org/10.1093/wjaf/24.1.5.

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Abstract The ratio between additive and original versions of Reineke's stand density index (SDI) has been used as a descriptor of stand structural complexity. That ratio also can be informative for designing efficient sampling methods and for the design of silvicultural experiments. Previous analyses of this ratio have assumed a diameter distribution without truncation, such that trees from zero to infinite dbh are possible. Truncation of the diameter distribution, e.g., by tallying only trees larger than some minimum dbh, moves the ratio much closer to one when the stand has a classic balanced uneven-aged structure. Minimum values of the ratio are found not with classic reverse-J distributions, but with sharply bimodal distributions that might be typical of a two-cohort stand. The implications for the use of novel sampling methods and for experimental designs to test whether the additive or original SDI provides better prediction in irregular stands are discussed.

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Hsiu, Wei-Hsiang, Fong-Ci Syu, and Chin-Hsing Kuo. "Design and implementation of a new statically balanced mechanism for slider-type desktop monitor stands." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 229, no. 9 (August 8, 2014): 1671–85. http://dx.doi.org/10.1177/0954406214546365.

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A desktop monitor stand is a device that supports the weight of a desktop monitor. The statically balanced mechanism within the stand can help the monitor travel to and stop at any different positions, i.e. in a state of static equilibrium at any position. The current statically balanced mechanisms used in the slider-type desktop monitor stands can be classified into two types. The first type integrates a cam and a spring as a statically balanced mechanism for which the cam profile machining could be costly. On the other hand, the second type utilizes a constant-force spring for balancing the weight of the monitor, but the springs must be tailor-made, which costs more. In this paper, a new statically balanced mechanism for slider-type desktop monitor stands is presented. The shown design uses common links and general spring only, which introduces a breakthrough advantage for reducing the manufacturing cost of the monitor stands. Furthermore, the kinematic and force analyses of the proposed design are carried out, and the mechanism dimension is determined via optimization technique. A prototype of the design is made up, and the experimental test in a practical monitor stand is done. As a result, the proposed mechanism can allow the monitor to remain statically balanced at any working position, which proves that the presenting design is practically workable.

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Höber, Michael, Benjamin Königshofer, Philipp Wachter, Gjorgji Nusev, Pavle Boskoski, Christoph Hochenauer, and Vanja Subotić. "Holistic Approach to Design, Test, and Optimize Stand-Alone SOFC-Reformer Systems." Processes 9, no. 2 (February 14, 2021): 348. http://dx.doi.org/10.3390/pr9020348.

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Reliable electrical and thermal energy supplies are basic requirements for modern societies and their food supply. Stand-alone stationary power generators based on solid oxide fuel cells (SOFC) represent an attractive solution to the problems of providing the energy required in both rural communities and in rurally-based industries such as those of the agricultural industry. The great advantages of SOFC-based systems are high efficiency and high fuel flexibility. A wide range of commercially available fuels can be used with no or low-effort pre-treatment. In this study, a design process for stand-alone system consisting of a reformer unit and an SOFC-based power generator is presented and tested. An adequate agreement between the measured and simulated values for the gas compositions after a reformer unit is observed with a maximum error of 3 vol% (volume percent). Theoretical degradation free operation conditions determined by employing equilibrium calculations are identified to be steam to carbon ratio (H2O/C) higher 0.6 for auto-thermal reformation and H2O/C higher 1 for internal reforming. The produced gas mixtures are used to fuel large planar electrolyte supported cells (ESC). Current densities up to 500 mA/cm2 at 0.75 V are reached under internal reforming conditions without degradation of the cells anode during the more than 500 h long-term test run. More detailed electrochemical analysis of SOFCs fed with different fuel mixtures showed that major losses are caused by gas diffusion processes.

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Kęder, Michał, Rafal Grzeszczyk, Jerzy Merkisz, Paweł Fuć, and Piotr Lijewski. "DESIGN OF A NEW ENGINE DYNAMOMETER TEST STAND FOR DRIVING CYCLE SIMULATION." Journal of KONES. Powertrain and Transport 21, no. 4 (January 1, 2014): 217–24. http://dx.doi.org/10.5604/12314005.1130477.

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Pastukhov, A. G. "Substantiation of the design strength parameters for a service-lifetime test stand." Russian Physics Journal 50, no. 11 (November 2007): 1142–47. http://dx.doi.org/10.1007/s11182-007-0168-3.

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Leski, Andrzej, Wojciech Wronicz, Piotr Kowalczyk, Michał Szmidt, Robert Klewicki, Karol Włodarczyk, and Grzegorz Uliński. "Modular Test Stand for Fatigue Testing of Aeronautical Structures – Verification of Assumptions." Fatigue of Aircraft Structures 2020, no. 12 (December 1, 2020): 78–91. http://dx.doi.org/10.2478/fas-2020-0008.

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Abstract The Modular Test Stand was developed and manufactured to decrease the cost of fatigue testing and reduce the time of its completion as well as to enable testing specimens under more complex load conditions. The stand consists of three connected sections, similar to a wing box, all being loaded in the same way. Thanks to that, several specimens can be tested simultaneously. This configuration requires that stress and strain distribution should be reasonably uniform, as assumed in the design stage. The structure can be loaded with bending or torsion. A whole section, selected structural node or a specimen mounted in the structure as well as a repair or a sensor can be a test object. Two stands, one for bending and one for torsion were prepared. This paper presents the verification of the assumed strain and stress distributions on the skin panels. The measurements were performed with the use of Digital Image Correlation (DIC) as well as strain gauges. DIC measurements were performed on one skin panel of the central section. Five strain gauge rosettes were installed on both panels of the one section. In addition, one rosette was applied to one skin panel in each of two other sections. Measurements were performed on the stand for torsion as well as on the stand for bending. The results of DIC analysis and strain gauge measurement during torsion show uniform shearing strain distributions on the panels. During bending, on the tensioned side, the strains obtained indicate quite uniform strain distributions. On the compressed side, local buckling of the skin panels results in high strain gradients. Strain levels obtained with the use of a DIC analysis and strain gauge measurements were similar. Moreover, horizontal displacements of markers in the spar axis during bending was determined based on a series of photographic. The deflection line obtained in this way has a shape similar to arc, which is characteristic of the constant bending moment. The stand was tested with torsional and bending loads in order to verify the design assumptions. The results of strain distributions on the skin panels with the use of DIC and strain gauges as well as the deflection line of the spar axis indicate that the Modular Test Stand performs as assumed and can be used for tests.

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Zbrowski, Andrzej, and Krzysztof Matecki. "Test Stand for Durability Tests of Rotating Elements of Office Chairs." Solid State Phenomena 223 (November 2014): 155–62. http://dx.doi.org/10.4028/www.scientific.net/ssp.223.155.

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This paper presents the purpose, concept, principles of functioning, design and construction of a stand intended for testing the durability of rotational elements of office chairs. It shows the use of the stand for certification tests in accordance with the PN-EN 1335:2009 standard. It also discusses how tests on swivelling and the durability of wheels and the base of office chairs should be conducted using the developed stand. The authors present test conditions and discuss the instrumentation necessary to induce static loads during the investigations. They also identify the possibilities to perform other tests on the stand by introducing to the existing research instruments additional instrumentation necessary from the point of view of the above listed standard. The possibility of adjusting the stand to the prospective changes in normative requirements and the needs of individual users are also described.

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Ma, Kai. "The Research of Digital Display Pump Test Stand Based on IPC." Applied Mechanics and Materials 300-301 (February 2013): 1546–50. http://dx.doi.org/10.4028/www.scientific.net/amm.300-301.1546.

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This paper present the overall design of measurement and control system of digital display pump test stand based on IPC. IPC and NI LabVIEW were adopted in this system to realize many functions such as the rotation speed regulation of driving axis on pump test stand, measurement of fuel injection quantity and oil temperature, measurement and control of oil pressure, and so on.

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Burghardt, Andrzej, Krzysztof Kurc, Dariusz Szybicki, Magdalena Muszyńska, and Jacek Nawrocki. "Robot-operated quality control station based on the UTT method." Open Engineering 7, no. 1 (March 23, 2017): 37–42. http://dx.doi.org/10.1515/eng-2017-0008.

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AbstractThis paper presents a robotic test stand for the ultrasonic transmission tomography (UTT) inspection of stator vane thickness. The article presents the method of the test stand design in Autodesk Robot Structural Analysis Professional 2013 software suite. The performance of the designed test stand solution was simulated in the RobotStudio software suite. The operating principle of the test stand measurement system is presented with a specific focus on the measurement strategy. The results of actual wall thickness measurements performed on stator vanes are presented.

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Sievert, P. R. "The Design of Test Equipment for Safety and Safety-Relief Valves." Journal of Pressure Vessel Technology 115, no. 2 (May 1, 1993): 147–55. http://dx.doi.org/10.1115/1.2929509.

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A design method for safety and safety-relief valve test equipment is presented which is applicable to compressible media. A test stand pressure vessel is sized for an assumed ideal valve operation. In this way, a minimum size is determined which will allow the measured safety valve performance to be characteristic of the valve and not the test equipment.

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Yang, Cheng Hui. "A New Mathematical Model of Brake Test Stand Control System." Advanced Materials Research 562-564 (August 2012): 975–78. http://dx.doi.org/10.4028/www.scientific.net/amr.562-564.975.

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All of the performances of the car, break performance is one of the most important. In the stage of automotive design, road tests usually are not available, only special brake tests are used to simulate the test. Using brake tester is a good measure to decide the vehicle braking performance. To carry out the brakes test and to explore inertia, it can better simulate the actual use of the brake mode and environmental conditions, a more realistic response to brake performance, not only brake to improve the level of R & D to enhance the braking technology, but also can improve brake testing technology to improve the design level test bench, the most critical is a good control analysis of the mathematical modeling of the brake product development, quality control, and vehicle braking performance are very important. Based on the data calculation and analysis, model, and the control algorithm, obtained reasonable control of the brake test bench mathematical modeling, and the method to do the appropriate improvements.

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Chernov, A. E., and A. V. Akimov. "Automated control-test stand for study of automobile and bus generator sets." Izvestiya MGTU MAMI 8, no. 2-1 (January 20, 2014): 5–12. http://dx.doi.org/10.17816/2074-0530-67630.

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The article considers the design of a stand for automated study of automobile and bus generator sets. The main types of drives and control systems for the stand are considered. The optimal type and capacity of asynchronous motor drive and control unit are chosen. Automated software-based measurement system for studying energy and thermal processes is developed. A diagram for the study of transient processes in the electrical system in real operation is presented in the paper. An automated control algorithm for asynchronous drive of the stand is shown.

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Yaneva, Svetlana. "Stab resistance of bulletproof vests. A conceptual model of test bench." MATEC Web of Conferences 317 (2020): 06002. http://dx.doi.org/10.1051/matecconf/202031706002.

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This paper presents a conceptual model of a stand to test the physico-mechanical characteristics of materials used in the soft panels of bulletproof vests for their stab resistance to cold weapons having a sharpened blade portion firmly and rigidly attached to handle. In the process of conceptual design of the model, the requirements and norms set out in two of the leading standardization documents used to determine the stab resistance of the bulletproof vests: the standard of the US National Institute of Justice -NIJ 0115.00, Stab Resistance of Personal Body Armor, and the UK Police Standard - HOSDB 2007. Part 3 -Knife and Spike Resistance, have been taken into account. 3D models of the stand and its individual constructive elements were developed, on the basis of which were offered real elements and devices for its elaboration. The designed stand is technologically accessible, inexpensive and easy to manufacture and install. It can be used to pre-determine the stab resistance of different types of materials and their combinations used in the soft panels of the bulletproof vests in the process of improving their structure. Availability of such stands in the equipment of the producers laboratories involved in this type of activity would reduce costs and shorten the evaluation time of the tested materials in order to verify their compliance with standard requirements since only samples showing the highest stab resistance will have to be sent for testing in certified and accredited laboratories.

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Mathias, Mauro Hugo, Everton Coelho de Medeiros, and Valdeci Donizete Gonçalves. "Design of a LabVIEW System Applied to Predictive Maintenance." Applied Mechanics and Materials 249-250 (December 2012): 208–12. http://dx.doi.org/10.4028/www.scientific.net/amm.249-250.208.

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The implementation of vibration analysis techniques based on virtual instrumentation has spread increasingly in the academic and industrial branch, since the use of any software for this type of analysis brings good results at low cost. Among the existing software for programming and creation of virtual instruments, the LabVIEW was chosen for this project. This software has good interface with the method of graphical programming. In this project, it was developed a system of rotating machine condition monitoring. This monitoring system is applied in a test stand, simulating large scale applications, such as in hydroelectric, nuclear and oil exploration companies. It was initially used a test stand, where an instrumentation for data acquisition was inserted, composed of accelerometers and inductive proximity sensors. The data collection system was structured on the basis of an NI 6008 A/D converter of National Instruments. An electronic circuit command was developed through the A/D converter for a remote firing of the test stand. The equipment monitoring is performed through the data collected from the sensors. The vibration signals collected by accelerometers are processed in the time domain and frequency. Also, proximity probes were used for the axis orbit evaluation and an inductive sensor for the rotation and trigger measurement.

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Dr. Ajay Roy, Srinivas Perala,. "A Novel Framework Design for Test Case Authoring and Auto Test Scripts Generation." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 6 (April 5, 2021): 1479–87. http://dx.doi.org/10.17762/turcomat.v12i6.2686.

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Every product has defects and identifying defects in the process of development and rectifying them before the launch of the product is very important. Embedded software testing process find the bugs in the software and report to the developer to fix issues. Sometimes to meet the product release deadlines, test engineers will not get much time to cover all test cases. That is why most software testing depends on test automation. In this paper, we focused on the area of automotive and home appliances embedded software test automation. Test automation is the only solution to improve the test phase and meet the timeline of the product launch. There are many test Automation tools like LabVIEW, test stand, and automation desk to automate testing embedded software. However, there is still manual efforts are required to use these tools. This paper deals automate those manual efforts. This Works shows how to generate test scripts from test cases to reduce the manual efforts, time, and cost.

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Peruń, Grzegorz, and Bogusław Łazarz. "Modelling of Power Transmission Systems for Design Optimization and Diagnostics of Gear in Operational Conditions." Solid State Phenomena 210 (October 2013): 108–14. http://dx.doi.org/10.4028/www.scientific.net/ssp.210.108.

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This article presents the author's dynamic model of power circulating gear test stand. It was assumed, that properly defined and next identified model can be used to analyze dynamic phenomena in meshing and bearings of gears and allows optimizing their construction, especially to minimize their vibroactivity. The article includes description of the construction of a test-stand, as well as short characteristic of the dynamic model. Afterwards it was presented verification, whether the model was correctly fine tuned. For verification purpose, were conducted laboratory measurements of velocity of transversal vibrations at the test-stand using laser vibrometer. Results of laboratory examinations were compared with the results achieved during computer simulation. Developed and presented dynamic model take into account a number of design, technological and operational parameters of gear. It was also presented algorithm of researches aimed at minimizing the vibroactivity of gear.

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Zhang, Xi, Yan Yan Wang, Ya Bin Cui, Miao Yu, and Zhi Min Zhao. "Opened Performance of Hydraulic Support Electro-Hydraulic Valve Test Bench Design." Advanced Materials Research 834-836 (October 2013): 1619–22. http://dx.doi.org/10.4028/www.scientific.net/amr.834-836.1619.

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A new performance test system is presented in this paper, as we all known, hydraulic support is the most important equipment in mechanized coal mining. Electric hydraulic valve, as the key components, consist of electromagnetic pilot valve and mechanical valve bodies. When electromagnetic pilot valve hasnt enough driving force, precursor core wont work normally. The test stand can measure relationship between displacement and force of electromagnetic pilot valve. First of all, electric hydraulic valve is introduced simply, then detailed designing process. The test Bench includes measurement and control system, as well as working theory.

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Zhao, Xiang Yang, and Yu Jin. "Development of a Test Platform for Stand-Alone PV Systems." Advanced Materials Research 433-440 (January 2012): 6409–13. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.6409.

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To verify the design of a standalone photovoltaic (PV) system, a test facility has been installed. This paper describes a platform to test the stand-alone solar system according to the IEC62124 standard. Essentially, this entire system involves the integration of a Personal Computer (PC), Data Acquisition (DAQ), an AC load and a solar array simulator (SAS) to test and simulate a stand-alone PV system. The main functions of this test facility are data acquisition, display, save and analysis data and print reports. The information obtained by monitoring parameters, such as average battery’s temperature, voltage and current is fed to the PC via the DAQ for analysis. This customized control interface has been developed by utilizing Labview software. This new system boasts of high accuracy measurements coupled with the commercial viability of low cost.

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Centrawati, Betty Apri, and Amirudin Latif. "THE EFFECT OF USING STAND UP SEQUENCE GAME TOWARD STUDENTS’ VOCABULARY MASTERY OF BUDI UTOMO ENGLISH CLUB OF METRO IN 2020/2021 ACADEMIC YEAR." Journal of English Education and Enterpreneurship (JEEP) 1, no. 1 (January 5, 2021): 1–17. http://dx.doi.org/10.24127/jeep.v1i1.576.

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The study is aimed to find out whether the use of Stand upSequence Game is effective as the media in teaching vocabularymastery. The study used quasi-experimental design with the researchpopulation namely 22 female students of Budi Utomo Orphanage. The researcher conducted the systematic of purposive samplingand used pre-test and post-test as a research instrument. To analyze thepre-test and post-test score, the researcher used t-test analyzes. Theresult of the first hypothesis test which uses 5% significant degree, wherethe t-test obtained is (6.999) which also higher than that of t table (2.22).The second hypothesis test where the t-test obtained is (2.274) which ishigher than that of t table (2.08). It shows that the students who are taughtby Stand up Sequence Game having a higher score. In conclusion, thatteaching English vocabulary using Stand up Sequence Game is moreeffective than that of without using Stand up Sequence Game.

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Barta, Riley B., Davide Ziviani, and Eckhard A. Groll. "Design and commissioning of a modular multi-stage two-evaporator transcritical CO2 test stand." International Journal of Refrigeration 130 (October 2021): 392–403. http://dx.doi.org/10.1016/j.ijrefrig.2021.05.033.

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Alade, M. O., E. P. Ogherowo, and O. M. Durodola. "Design, Construction, Test and Evaluation of a Stand alone 75 Watts Solar Electric Generator." Journal of Engineering and Applied Sciences 5, no. 4 (April 1, 2010): 337–41. http://dx.doi.org/10.3923/jeasci.2010.337.341.

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Ren, Gao-lin, Xue-wei Zhang, Qiang Wei, Chen-hui Lei, Zhen Zhang, Qiang-qiang Qi, and Yue-qi Gao. "Design and research of a center adjustment mechanism based on missile ground test stand." Journal of Physics: Conference Series 2125, no. 1 (November 1, 2021): 012066. http://dx.doi.org/10.1088/1742-6596/2125/1/012066.

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Abstract For a missile ground test stand that requires a lot of core installation, such as the inner and outer labyrinth centering installation. There are some problems in the installation process, such as complex installation process, difficult adjustment, long installation time, poor positioning accuracy and so on. This paper takes the inner and outer labyrinth centering installation as an example, through non-standard structure selection and processing, designed a set of centering adjustment mechanism, through the field installation comparison, it is concluded that the new centering adjustment mechanism has the advantages of high positioning accuracy, simple operation, greatly saving working time, quick and simple adjustment, etc. The new centripetal adjustment mechanism is also simple, efficient and cost saving for other tasks that need centripetal adjustment on missile ground test bed. Its design and research have high engineering practical significance.

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ANDO, Hiroki, Goro OBINATA, and Junichiro MIYAGAKI. "Integrated Design of Structure/Controller for Head Gimbals Assembly of Magnetic Recording Test Stand." Transactions of the Japan Society of Mechanical Engineers Series C 71, no. 703 (2005): 987–94. http://dx.doi.org/10.1299/kikaic.71.987.

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Kumaran, Varun Urundolil, Markus Zogg, Lukas Weiss, and Konrad Wegener. "Design of a Test Stand for Lifetime Assessment of Flat Belts in Power Transmission." Procedia CIRP 91 (2020): 356–61. http://dx.doi.org/10.1016/j.procir.2020.02.187.

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Liu, Zhimin, Sheng Liu, Caichao Jiang, Yahong Xie, and Chundong Hu. "Design and Development of a Power Supply System for NBI Test Stand of EAST." Journal of Fusion Energy 33, no. 4 (March 9, 2014): 398–405. http://dx.doi.org/10.1007/s10894-014-9686-5.

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GOŁOŚ, Damian, Michał JASIŃSKI, Paweł ZAWADA, and Janusz NOGA. "G-Force Test Stand for the Evaluation of Weapon Component Strength." Problems of Mechatronics Armament Aviation Safety Engineering 12, no. 4 (December 30, 2021): 43–56. http://dx.doi.org/10.5604/01.3001.0015.5987.

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This paper discusses the design of a G-force test stand intended to examine of the effects of mechanical loads present during firing of a weapon and applied to the electronic components contained in the 155 mm calibre guided projectile. The G-force test stand is used to develop and test the effects of using high mechanical loads by decelerating a test specimen through the use of a purpose-designed fender assembly. For the purpose of testing, it is irrelevant whether a load is developed by acceleration or deceleration of the test specimen, as a test result obtained by the deceleration of a test specimen is equivalent to a test result obtained by the acceleration of a test specimen, as used in a 155 mm calibre artillery guided projectile. The G-force test stand was used to test and determine the velocities developed by the test specimens and the G-forces applied to them. The maximum velocity to which a test specimen was accelerated was approx. 72 m/s. The test stand was able to propel the test specimens to velocities an order of magnitude higher than the velocities obtained with a Kast and Masset ram. The tests were performed with rubber and copper fender assemblies. The effect of the specific fender used was demonstrated on the trend of the generated G-force. The test stand could develop G-forces in excess of 10,000 with a duration of more than 500 µs.

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POLIAKOV, A. M., P. K. SOPIN, V. B. LAZAREV, A. I. RYZHKOV, M. A. KOLESOVA, and P. A. BUGAYOV. "CONCEPTUAL DESIGNING OF A MECHATRONIC STAND FOR PRE-CLINICAL TESTS OF LOWER LIMBS ROBOTIC PROSTHESES." Fundamental and Applied Problems of Engineering and Technology 4, no. 1 (2020): 164–71. http://dx.doi.org/10.33979/2073-7408-2020-342-4-1-164-171.

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Over the past several years, the first real prototypes of robotic prostheses have been developed in Russia, but they still lose competition to the best foreign designs and are practically not in demand in the domestic market of assistive devices. One of the reasons preventing this is the absence in Russia of stands for certification tests of robotic prostheses. In addition, the use of such stands at the design stage would significantly simplify the solution of the problem of synthesizing high-quality control systems and would not require the participation of disabled volunteers for their testing and adjustment. However, there are currently no analogues of such test benches in Russia. This paper describes a conceptual version of a mechatronic stand-simulator capable to simulate biosimilar movements of a human lower limb in various modes of physical activity under variable environmental parameters in order to adjust parameters, laboratory and preclinical tests of structures and control systems of active lower limbs prostheses and their modules. The stand can be easily upgraded for certification testing of robotic lower limb prostheses.

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Klein, J. I. "Effects of incomplete block design and stand structure on heritability of growth in a jack pine family test in Manitoba." Canadian Journal of Forest Research 19, no. 8 (August 1, 1989): 1044–50. http://dx.doi.org/10.1139/x89-159.

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Height and diameter were measured in three plantations of a Pinusbanksiana Lamb, family test with stand structure in southeastern Manitoba at 10 years from planting. The plantations were established in a cubic lattice design. For height and diameter, respectively, 90.6 and 90.8% of total variance among trees was within plots, 1.7 and 2.0% was due to stands, 2.0 and 2.0% to families, 2.6 and 1.8% to family by plantation interaction, and the remaining 3.1 and 3.5% to residual plot error. All tested effects were significant for height and diameter at P < 0.05. Family, within-family, and individual tree heritabilities were 0.49 and 0.52, 0.065 and 0.065, and 0.096 and 0.098 for height and diameter, respectively. The stands component was excluded from within-family contributions in estimating heritability. When the data were analyzed as a randomized block experiment, the variance components for plot error increased to 13.9 and 11.3% of total variance, whereas the interaction component decreased to less than 1%. Heritability estimates were slightly lower than those from cubic lattice analysis. Cubic lattice design and analysis were effective in reducing plot error.

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Мarmut, Іhоr, Vitalii Kashkanov, and Volodymyr Zuiev. "Theoretical studies of the force interaction of a three-axle vehicle with a stand with single rollers." Journal of Mechanical Engineering and Transport 14, no. 2 (January 2022): 52–61. http://dx.doi.org/10.31649/2413-4503-2021-14-2-52-61.

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The article discusses the issues of modeling conditions for obtaining diagnostic information about complex objects. Checking the braking and traction properties of three-axle trucks on a roller stand is considered as an example. As shown by many studies, in particular, which were carried out at the Department of Technical Operation and Service of Automobiles of the KhNADU (HADI), inertial stands provide more reliable information about the technical condition of the car. Such stands allow you to reproduce the real speed and thermal conditions of the brakes. To improve the accuracy of diagnosing a car on a roller stand, it is necessary to have an idea of the nature of the interaction of the car's wheels with the rollers. The study of the rolling of the wheels of a three-axle car bogie on the stand rollers was carried out at the Department of Technical Operation of Cars, KhNADU. However, all these studies were carried out on biaxial stands, where each bogie wheel rests on a pair of rollers. In order to exclude wheel slippage, partial braking is recommended, that is, a mode when partial force on the pedals (or pressure) is created in the system and, as a result, incomplete braking force develops in the braking mechanisms (or deceleration reaches some partial value from the full one). It is necessary to analyze the possibility of implementing full brake test modes on a roller stand by improving the layout and geometrical scheme of the stand. A power model of the system of interaction between a car and a stand has been developed, taking into account the design features of the stand and the design features of the suspension of a three-axle car. The power model of this system includes the equations of equilibrium of the body and two axles, as well as the equations of motion for the rollers and wheels of the car. Based on the results of the analysis of the acting forces in the "car-stand" system, the coefficients of the use of the load q during the brake tests of a three-axle car were determined, and the longitudinal stability of the car was also analyzed. The obtained research results allowed to improve the theory of interaction of the wheels of three-axle vehicles with single rollers of the diagnostic stand.

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Wirabuana, Pandu Yudha Adi Putra, Ronggo Sadono, and Dewanto Dewanto. "Evaluation of planting design for cajuput development (Melaleuca cajuputi Powel) in KPH Bojonegoro." Jurnal Penelitian Kehutanan Wallacea 10, no. 1 (March 31, 2021): 1. http://dx.doi.org/10.18330/jwallacea.2021.vol10iss1pp1-9.

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Development of cajuput plantation currently becomes the most important activity in KPH Bojonegoro since it provides an essential contribution to maintain the future viability of company. However, the growth performance of cajuput stand relatively varies one of which is influenced by planting design. This study aims to determine the optimum planting design for supporting cajuput stand development. It was conducted by evaluating two different planting designs that generally used for cajuput establishment, namely C1 (spacing 3 m x 1 m) and C2 (spacing 5 m x 1.5 m x 1.5 m). Five parameters were used to evaluate the growth performance and oil production of cajuput stand for each planting design, i.e., survival rate, quadratic mean diameter, basal area, harvesting biomass, and cajuput oil production. Data were collected by field measurement using a sampling plot 50 m x 50 m with six replications for each planting design. Comparison mean of cajuput growth performance between two planting designs were analyzed separately for each parameter using t-test. Results documented there were not a significant different for all parameters, except survival rate. The planting design C2 generated higher survival rate (94.9%) than planting design C1 (64.7%). The planting design C2 was recommended for cajuput development in KPH Bojonegoro. Besides requiring the lower planting density, the use of planting design C2 can optimize land utility with a similar productivity to planting design C1.

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Poslavsky, A. P., V. V. Sorokin, and A. A. Fadeev. "TO THE QUESTION OF THE POSSIBILITY OF DEVELOPING TOOLS AND METHODS FOR INSTRUMENTAL DIAGNOSTICS OF HEAT EXCHANGERS OF TRANSPORT EQUIPMENT IN OPERATION." Intelligence. Innovations. Investment, no. 4 (2021): 60–67. http://dx.doi.org/10.25198/2077-7175-2021-4-60.

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Heat exchangers are used to stabilize and maintain the temperature regime of various units and systems of cars. The technical condition of heat exchangers in operation is different and unstable. At a certain operating time interval, the technical condition of any of the heat exchangers can become limiting due to the influence of various kinds of operational factors. The article analyzes the possibility of improving the means and methods of diagnostic support of automobile heat exchangers in operation. In the design and manufacture of automotive heat exchangers, they are tested in specialized laboratories equipped with test stands characterized by high capital and operating costs. The use of these stands for diagnosing heat exchangers in operation is not applicable. Due to the limitations and imperfections of the known methods and means of diagnosing automobile heat exchangers in operation, an objective assessment of their current technical condition is difficult and requires the search for new, more advanced diagnostic options. The relevance of the topic of the article lies in the search for ways to improve the diagnostic support, adapted for a quantitative assessment of the technical condition of heat exchangers in operation. The aim of the work is to improve the method and means of diagnosing heat exchangers in operation on the basis of modernizing the design of the test bench for radiator modules. Potentially a possible upgrade option was chosen previously developed by the authors stand for testing modules of automobile radiators, which is distinguished by the effect of resource saving when obtaining the test result. Achievement of the goal requires updating the architecture of the structural elements of the stand, and the search for design and technological solutions that contribute to the achievement of the goal. The methodological research toolkit is based on dialectically interrelated methods: analysis of a problem situation and subsequent design and technological synthesis. Scientific novelty lies in the development of conditions for modernization, allowing to expand the functionality of the basic structure of the stand. The practical significance of the results lies in the choice of the direction of research, with a new set of technical proposals and conditions for achieving the goal of the work.

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Gronowska-Szneler, M. A., and J. M. Sawicki. "Simple design criteria and efficiency of hydrodynamic vortex separators." Water Science and Technology 70, no. 3 (May 27, 2014): 457–63. http://dx.doi.org/10.2166/wst.2014.245.

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Vortex separators still draw attention from specialists investigating the process of removing particles suspended in liquids. The devices are locally applied for waste water treatment in different systems – from storm waste water sewerage to water circulation in fish ponds. However, the methods for separator design presented in the literature are questionable. The paper presents two simple and functional criteria that were employed to construct a laboratory test stand. The test results gave positive feedback on the efficiency of vortex separators.

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Journal articles on the topic 'Test stand design'

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