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Статті в журналах з теми "Screw feeder systems"
Bascone, Davide, Federico Galvanin, Nilay Shah, and Salvador Garcia-Munoz. "Modelling and Nonlinear Model Predictive Control of a Twin Screw Feeder." IFAC-PapersOnLine 52, no. 18 (2019): 156–61. http://dx.doi.org/10.1016/j.ifacol.2019.12.223.
Повний текст джерелаKOVALYOV, Yuri, Sergey PLESHKO, and Ivan SUVOROV. "DEVELOPMENT OF IMPROVED ROBOTICS EXTRUDER LOADING SYSTEM." Herald of Khmelnytskyi National University. Technical sciences 317, no. 1 (February 23, 2023): 100–104. http://dx.doi.org/10.31891/2307-5732-2023-317-1-100-104.
Повний текст джерелаCieślik, Ewelina, Piotr Kwaśniok, Tomasz Rachwał, and Piotr Kowalczyk. "DETERMINATION OF CONDENSABLE PARTICULATE MATTER RELEASED BY THE COMBUSTION OF SOLID FUELS IN LOW-POWER BOILERS." Zeszyty Naukowe SGSP 85 (March 20, 2023): 81–92. http://dx.doi.org/10.5604/01.3001.0016.3280.
Повний текст джерелаLittle, Helen A., Nagendra G. Tanikella, Matthew J. Reich, Matthew J. Fiedler, Samantha L. Snabes, and Joshua M. Pearce. "Towards Distributed Recycling with Additive Manufacturing of PET Flake Feedstocks." Materials 13, no. 19 (September 25, 2020): 4273. http://dx.doi.org/10.3390/ma13194273.
Повний текст джерелаDyakonov, O. M., A. A. Litvinko, and V. Yu Sereda. "Modeling of the process of heating of chip‑powder dispersions of ferrous metals in the pass‑through muffle furnace of hot briquetting. Message 1." Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), no. 2 (May 31, 2022): 59–67. http://dx.doi.org/10.21122/1683-6065-2022-2-59-67.
Повний текст джерелаKostenko, M. Yu, I. A. Uspensky, I. A. Yukhin, and N. V. Lipatov. "Screw Dosing Device for Solid Mineral Fertilizers." Machinery and Equipment for Rural Area, no. 5 (May 23, 2023): 16–20. http://dx.doi.org/10.33267/2072-9642-2023-5-16-20.
Повний текст джерелаSATO, Ryuta. "3233 Wear Estimation of Ball Screw and Support Bearing Based on Servo Signals in Feed Drive System." Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2011.6 (2011): _3233–1_—_3233–6_. http://dx.doi.org/10.1299/jsmelem.2011.6._3233-1_.
Повний текст джерелаCzubaszek, Robert, Agnieszka Wysocka-Czubaszek, and Piotr Banaszuk. "Importance of Feedstock in a Small-Scale Agricultural Biogas Plant." Energies 15, no. 20 (October 20, 2022): 7749. http://dx.doi.org/10.3390/en15207749.
Повний текст джерелаДисертації з теми "Screw feeder systems"
Göbel, Lukáš. "Konstrukční návrh lineární osy pro těžký obráběcí stroj." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318778.
Повний текст джерелаKant, Pushpit. "Experimental study of the flow of granular media through a horizontal screw feeder system." Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5981.
Повний текст джерелаInternational Fine Particle Research Institute (IFPRI)
HSU, CHE-WEI, and 許哲瑋. "Diagnosis and Monitor of Ball Screw Feed Drive Systems." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/74236153991583279059.
Повний текст джерела國立中正大學
機械工程系研究所
104
The purpose of this research is to develop a diagnosis system for ball screw feed drive systems based on monitoring the vibration signal on bearings and ball screw nut. This systems was divided into two parts. In the first part, a novel method in monitoring automatically the preload degradation for a ball screw feed drive system based on principal component analysis(PCA) is presented and its performance is assessed. Four feature from an vibration order spectrum, the actual ball pass order (ABPO), the vibration RMS amplitude at ABPO, the variance of vibration at ABPO and the dispersion of order spectra are proposed to quantify the difference in characteristics between ball screws with and without preloads. By simply attaching an accelerometer on the ball screw nut of a ball screw feed drive system in operation, these four parameters are calculated by using angular velocity Vold-Kalman filtering order tracking (AV VKF-OT). With these four parameters, the prediction accuracy in monitoring the ball screw preload degradation is much improved and can be realized practically. Furthermore, a screw degradation indicator based on the four parameters and PCA is proposed to estimate the ball screw remaining life. Experimental results show that the ball screw remaining life can be estimated with an error less than 15%. In the second part, a bearing diagnosis system using vibration measurements and self-organizing map (SOM) is developed. Several features extracted from the vibration envelope spectra are assessed and ranked using Fisher score in distinguishing a healthy bearing form the faulty one. Experimental results show that with this system the bearing can be monitored and the diagnosis is accurate.
TSAI, PING-CHUN, and 蔡秉均. "Developments of Preload Monitoring Techniques of Ball Screw Feed Drive Systems." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/14641428688930592446.
Повний текст джерела國立中正大學
機械工程系研究所
105
Two preload monitoring techniques for ball screw feed drive systems have been developed in this study. The first focuses on the preload monitoring of ball screw and the estimation of the ball screw remaining useful life (RUL). The second is the preload monitoring aiming for linear guideway type (LGT) ball bearings. A novel method in monitoring automatically the preload degradation for a ball screw feed drive system based on self-organizing map (SOM) is presented and its performance is experimentally assessed. Four features from an vibration order spectrum, the actual ball pass order (ABPO), the vibration RMS amplitude at ABPO, the variance of vibration at ABPO and the dispersion of order spectra are proposed to quantify the difference in characteristics between ball screws with and without preloads. By simply attaching an accelerometer on the ball screw nut of a ball screw feed drive system in operation, these four parameters are calculated by using Angular Velocity Vold-Kalman Filtering Order Tracking (AV VKF-OT). With these four parameters, the prediction accuracy in monitoring the ball screw preload degradation is much improved and can be realized practically. Moreover, an algorithm for estimating RUL of ball screw is proposed and then validated through a run-to-failure test which simulates the practical applications. In the second part, a novel method for automatically monitoring the preload degradation of LGT recirculating linear ball bearings is proposed. Simulations and experiments both revealed that the reduction in the natural frequency corresponding to the yawing mode of the worktable is sensitive to and varied linearly with the degradation of the LGT linear bearing preload. By attaching three accelerometers to the worktable of a machine tool and then exciting the worktable with a pulse from the servo motor of a feed drive, this study identified the natural frequencies of the worktable and their corresponding mode shapes by using operational modal analysis (OMA). Among all the natural frequencies obtained by OMA, the natural frequency corresponding to the specific yawing mode of the worktable was extracted using the modal assurance criteria, and the change in the extracted frequency was tracked; thus, the degradation of LGT linear bearing preload could be monitored automatically without exciting the worktable manually.
Chen, Yen-Chen, and 陳彥辰. "Investigations of Vibration Reduction Techniques for Ball Screw Feed Drive Systems." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/n4r6dr.
Повний текст джерела國立中正大學
機械工程系研究所
105
The main purpose of this study is to compare the effectiveness in vibration reduction of a ball screw feed drive system with various vibration reduction techniques. A simplified ball screw feed drive system which consists of the work table, coupler, motor and ball screw shaft has been created. The ball screw shaft is modeled as a structural beam, whereas the other components are modeled equivalently as the combination of spring, damper and mass. The Lagrange method is utilized to the equation of motion and the resulting vibration response is then obtain by the Runge Kutta numerical integration scheme. Several methods such as filter of fixed frequency bandwidth, tracking filter, S-shaped input torque and input shaping are respectively adopted to suppress the work table vibration while the work table is driven by a motor speed control command input. Results show that S-shaped input torque is most effective among all the methods in suppressing the worktable vibration. The ZV (Zero-Vibration) technique from the input shaping method has a good performance for suppressing the pure tone vibration, but poor for multi-tone excitations. The ZV technique is further improved by the modified ZVDD (Zero-Vibration and Second Derivatives) technique, but ZVDD is still not satisfactory for broad band excitations. For filtering out the worktable natural frequency out of the input torque, the adaptive filter performs in reducing the work table vibration better than that of filter of fixed bandwidth due to less distortion in the input torque. However, the filtering techniques are more complicated in implement and perform poorly in reducing the work table vibration as compared to input shaping and S-shaped input.
CHIANG, WEN-LIN, and 江玟菱. "Developments of Fault Detection Techniques for Ball Screw Feed Drive Systems." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/hsn559.
Повний текст джерела國立中正大學
機械工程系研究所
106
The purpose of this research is to develop a diagnosis system for ball screw feed drive systems. The most prone to failure component in the feed drive system is the preload loss, followed by the rolling bearings. Furthermore, the main cause of the bearing failure is the installation error and/or component damage. The thesis consists of three parts. In the first part, several features extracted from the vibration measurements in frequency domain and time domain such as Sample entropy (SE), Root mean square (RMS), Singular spectrum entropy (SSE) and band energy are compared for their effectiveness in diagnosing the ball bearing faults. In the second part, features which could represent the assembly condition of the ball screw feed drive systems such as misalignment using the holographic spectrum are proposed and their effectiveness are also investigated. Finally, all the features aiming to detecting faults of ball screw feed drive systems due to bearing and/or assembly extracted from the vibration measurements are merged using Self-organizing map (SOM) . Whether the ball screw feed drive systems is healthy can be determined by calculating the Mahalanobis distance according to the Minimum quantization error (MQE) from the SOM. The proposed diagnosis technique is validated using the data sets from PHM and NASA. Experimental results show that the ball screw feed drive system can be diagnosed with a reasonable accuracy by this system.
Tsai, Sheng-Chih, and 蔡勝植. "Thermal Deformation Estimation for a Ball Screw Feed Drive System." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/42s8cb.
Повний текст джерела國立臺北科技大學
冷凍空調工程系所
102
The position error of a feed drive system was primarily caused by thermal deformation of a ball screw shaft. A high-speed ball screw system can generate massive heat after long-term operations with greater thermal expansion produced, and thereby unfavorably impact the positioning accuracy of the feed drive mechanism. In this study, we applied the computational approach using the finite element method (FEM) to simulate the thermal expansion process for estimating the deformation of the ball screw system. In the model, the deformation of the ball screw shaft was modeled by a linear elasticity manner given the assumption that the material was elastic, homogeneous, and isotropic. To emulate the reciprocating movements of the nut at the speeds of 20, 40 and 60 m/min corresponding to the screw shaft, we also utilized a three-dimensional unsteady heat conduction equation to determine the steady-state and transient temperature distributions, as well as temperature rises for calculating the thermal deformations of ball screws under operating situations. The analysis adopted the multi-zone heat loads to treat the heat generation sources from the frictions between the nut, bearings and the ball screw shaft. The predictions were compared with the experimental measurement for code validation. The simulated results showed that the countermeasures must be taken to thermally compensate great deterioration of the positioning accuracy due to vast heat production at high rotating speeds of shaft for a ball screw system.
Chang, Wei-Chen, and 張維真. "To analyse the dynamic response of a ball screw feed drive control system." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/ngmqyr.
Повний текст джерела國立彰化師範大學
機電工程學系
107
To build a servo control model of a single-axis ball screw feed system with multi DOF consideration, this thesis establishes the dynamic system equation. The solution of the eigenvalues and eigenvectors shows the feed system consisting of several peaks in different mode shapes. Difference between the frequency response by adding the servo controller loop or not with the servo tuning are discussed. Solution of developed system mode shapes and dynamic frequency response provides an approach for control parameter’s tuning of a CNC machine. Such phase margin, damping effect, frequency bandwidth and associated mode shapes of the system are resolved.
Li, Meng-Syuan, and 李孟軒. "Research on Vibration Characterizations of Feed Drive Systems and Predicting the Ball Screw Remaining Life." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/55289695284729876197.
Повний текст джерела國立中正大學
機械工程學系暨研究所
103
This thesis was divided into two parts. First part focuses on vibration characterizations of feed drive systems of machine tools. The feed drive system consists of ball screw, linear guideway, carriages, and ball bearing. The vibration characteristics of feed drive systems are studied with vibration measurements using accelerometers. Results show that the carriage vibration at the ball pass frequency and its multiples dominates the vibration of the feed drive system at low feed rate (e.g. under 1000 RPM). On the other hand, the ball screw vibration at its own ball pass frequency is the largest in the feed drive system at high rotation speed (e.g. over 1000 RPM). The ball bearing vibration is much small as compared to the ball screw and carriages, so it is hard to detect the bearing vibration especially when it is healthy. The ball bearing vibration can be detected using adaptive noise canceling technique in which the vibration from ball screw to the ball bearing can be reduced. Under this circumstance, the bearing vibration can be detected. However its effectiveness is limited at low feed rate (e.g. under 1400 RPM). In the second part of this thesis, a method based on techniques of ball screw preload detection and principal components analysis in predicting the ball screw remaining life is proposed. With this method, the health of ball screw and its remaining life can be monitored and predicted for machine tools in daily operations.
Chen, Xiang-Yuan, and 陳詳元. "Investigation of a Ball Screw Feed Drive System Based on Dynamic Modeling for Motion Control." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/23559818440766403446.
Повний текст джерела國立彰化師範大學
機電工程學系所
104
To control a single-axis ball screw feed system, this thesis establishes the model first and derives linear equation of motion and solves in frequency response. Solution of the eigenvalues and eigenvectors shows the feed system consists of several peaks in different mode shape frequency responses. Improved particle swarm optimization and hybrid particle swarm optimization are used to tune the gains of PID controller, iterative learning control gain and the bandwidth of zero phase Butterworth filter for reducing the tracking error with repetitions. Simulation results show that the developed controller can effectively lower the RMS tracking error with as iterations. Intrinsic mode functions of empirical mode decomposition are used to demonstrate the mechanism of eliminated tracking error as repetitive learning process. Correlation coefficient of intrinsic mode functions with tracking errors will examine the shift of compensated low-frequency error signals to high-frequency error signals as repetitive learning.
Частини книг з теми "Screw feeder systems"
Hecker, R., D. Vicente, and G. Flores. "Mechatronic Sizing of Ball-Screw Feed Drives." In Multibody Mechatronic Systems, 55–65. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09858-6_6.
Повний текст джерелаWang, Fujuan, and Feiyun Zhang. "The Control System of Twin-Screw Feed Extruder." In Advances in Intelligent and Soft Computing, 489–94. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29387-0_75.
Повний текст джерелаZhou, Yong, Fangyu Peng, and Bin Li. "Adaptive Notch Filter Control for the Torsion Vibration in Lead-Screw Feed Drive System Based on Neural Network." In Intelligent Robotics and Applications, 803–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-88518-4_86.
Повний текст джерелаLuo, Liang, and Weimin Zhang. "Electromechanical Co-Simulation for Ball Screw Feed Drive System." In New Trends in Industrial Automation. IntechOpen, 2019. http://dx.doi.org/10.5772/intechopen.80716.
Повний текст джерелаТези доповідей конференцій з теми "Screw feeder systems"
Murphy, Michael J. "Failure Analysis and Design Improvement Considerations of Wood Screw Conveyors." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0646.
Повний текст джерелаRigacci, Massimiliano, Ryuta Sato, and Keiichi Shirase. "Experimental Analysis of the Power Consumption of Feed Drive Systems Driven by Ball-Screw." In JSME 2020 Conference on Leading Edge Manufacturing/Materials and Processing. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/lemp2020-8523.
Повний текст джерелаMatsui, Shota, Nobutoshi Ozaki, Toshiki Hirogaki, Eiichi Aoyama, and Ryo Matsuda. "Investigation of Cutting Force in Screw Cutting by Three Axis Controlling Helical Interpolate With a Wireless Communication Tool Holder System." In JSME 2020 Conference on Leading Edge Manufacturing/Materials and Processing. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/lemp2020-8540.
Повний текст джерелаG. Giorges, Aklilu T., and Marc G. Zanghi. "The Flow Dynamics of a Partially Filled Horizontal Helical Screw Reactor (PFHSR)." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66947.
Повний текст джерелаYoshioka, Hayato, Shunya Saito, Jun Kato, Hidenori Shinno, Shunsuke Goto, and Nobumitsu Hori. "Improvement of Thermal Deformation in a Newly Developed Steel CFRP Composite Ball Screw." In JSME 2020 Conference on Leading Edge Manufacturing/Materials and Processing. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/lemp2020-8587.
Повний текст джерелаZaeh, Michael F., and Thomas Oertli. "Finite Element Formulation of Pre-Stressed Ball Screw Drives." In ASME 7th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2004. http://dx.doi.org/10.1115/esda2004-58281.
Повний текст джерелаHayashi, Akio, Ryuta Sato, Ryoma Iwase, Masayuki Hashimoto, and Keiichi Shirase. "Measurement and Simulation of Electric Power Consumption of Feed Drive Systems." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-63518.
Повний текст джерелаXu, Zhezhu, Qi Zhang, and Sungki Lyu. "Improvement of Positioning Error on a Ball Screw Drive System by Liquid-Cooling." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47280.
Повний текст джерелаChoi, Young H., Jin H. Hong, and Sung H. Jang. "A Study on the Feed Rate Optimization of a Ball Screw Feed Drive System for Minimum Vibrations." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-85473.
Повний текст джерелаMarquez-Garcia, Carlos E., Jesus Lopez-Gomez, Fermin Martinez-Solis, M. A. Diozcora Vargas-Trevino, Sergio Vergara-Limon, and Victor M. Velazquez-Aguilar. "FPGA-based accuracy mechatronics of a feed-drive system with ball screw." In 2021 18th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE). IEEE, 2021. http://dx.doi.org/10.1109/cce53527.2021.9633104.
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