Design and simulation of hydraulic shaking table
Recent industrial progress and computational technology made it possible to construct more complex structures. Vibration of these structures due to seismic strength must be measured and proved to prevent them from damage when they are subjected to earthquake. However, the accuracy of estimating the...
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2006
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TJ Mechanical engineering and machinery Ngadimon, Khairulnizam Design and simulation of hydraulic shaking table |
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Recent industrial progress and computational technology made it possible to construct more complex structures. Vibration of these structures due to seismic strength must be measured and proved to prevent them from damage when they are subjected to earthquake. However, the accuracy of estimating the effect of vibrating structures is limited by the mathematical models, which are normally simplified from the actual complex structures. Due to this problem, a study on the development of shaking table is proposed. The main purpose of this study is to obtain the design specifications for a 1-axis (horizontal) hydraulic shaking table with medium loading, which can function primarily as an earthquake simulator and a dynamic structural testing apparatus. The project employs a three stage electrohydraulic servovalve, actuator system complete with hydraulic system as the power and drive unit. Mathematical model for closed loop control experimentation was presented and used to investigate the influence of various parameters on the overall system. The investigation includes the study on the effect of controller gain setting (for PD and AFC), disturbances and system stability. Time domain analysis using computer simulation was conducted to explain and predict the system’s response. Comparison between PD and PD-AFC controllers was done and it was found that latter PD-AFC fulfills the performance and robustness specifications for this project. Other design outcome that limits the change of disturbances on the system was also identified and taken as the framework for real world. This suggests that the next stage in implementation of the designed system can be made for the purpose of an earthquake simulator, since it works very well especially at low frequency level of shaking |
| format |
Thesis |
| qualification_level |
Master's degree |
| author |
Ngadimon, Khairulnizam |
| author_facet |
Ngadimon, Khairulnizam |
| author_sort |
Ngadimon, Khairulnizam |
| title |
Design and simulation of hydraulic shaking table |
| title_short |
Design and simulation of hydraulic shaking table |
| title_full |
Design and simulation of hydraulic shaking table |
| title_fullStr |
Design and simulation of hydraulic shaking table |
| title_full_unstemmed |
Design and simulation of hydraulic shaking table |
| title_sort |
design and simulation of hydraulic shaking table |
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Universiti Teknologi Malaysia, Faculty of Mechanical Engineering |
| granting_department |
Faculty of Mechanical Engineering |
| publishDate |
2006 |
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http://eprints.utm.my/id/eprint/9658/1/KhairulnizamNgadimonMFKM2006.pdf |
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1747814770274205696 |
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my-utm-ep.96582018-09-17T03:35:45Z Design and simulation of hydraulic shaking table 2006-04-07 Ngadimon, Khairulnizam TJ Mechanical engineering and machinery Recent industrial progress and computational technology made it possible to construct more complex structures. Vibration of these structures due to seismic strength must be measured and proved to prevent them from damage when they are subjected to earthquake. However, the accuracy of estimating the effect of vibrating structures is limited by the mathematical models, which are normally simplified from the actual complex structures. Due to this problem, a study on the development of shaking table is proposed. The main purpose of this study is to obtain the design specifications for a 1-axis (horizontal) hydraulic shaking table with medium loading, which can function primarily as an earthquake simulator and a dynamic structural testing apparatus. The project employs a three stage electrohydraulic servovalve, actuator system complete with hydraulic system as the power and drive unit. Mathematical model for closed loop control experimentation was presented and used to investigate the influence of various parameters on the overall system. The investigation includes the study on the effect of controller gain setting (for PD and AFC), disturbances and system stability. Time domain analysis using computer simulation was conducted to explain and predict the system’s response. Comparison between PD and PD-AFC controllers was done and it was found that latter PD-AFC fulfills the performance and robustness specifications for this project. Other design outcome that limits the change of disturbances on the system was also identified and taken as the framework for real world. This suggests that the next stage in implementation of the designed system can be made for the purpose of an earthquake simulator, since it works very well especially at low frequency level of shaking 2006-04 Thesis http://eprints.utm.my/id/eprint/9658/ http://eprints.utm.my/id/eprint/9658/1/KhairulnizamNgadimonMFKM2006.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:54857 masters Universiti Teknologi Malaysia, Faculty of Mechanical Engineering Faculty of Mechanical Engineering 1. ANCO Engineers Inc., (1990), Shaking Tables Product Catalogue, Colorado USA. 2. S.K Prasad, I.Towhota (2004), Shaking Table Tests in Earthquake Geotechnical Engineering, Current Science, Vol. 87(10), Nov. 2004. 3. INOVA Hydraulics Inc., (2004), INOVA Servohydraulic Testing Systems, Germany. 4. Beer F., Johnson R.1990), Mechanics of Material, 2nd Edition, New York, McGraw-Hill. 5. Buchholdt H.A (1997), Structural Dynamics for Engineers, Heron Quay, Redwood Books. 6. Koga Y., Matsuo O, Shaking Table Tests on Embankments Resting on Liquefiable Sandy Ground, Soil Foundation, 1990, 30, 162-174. 7. Zhao J., Shield C., French C., Posbergh T., (2004), Effect of Servovalve / Actuator Dynamics on Displacement Control Testing, Conf. on Earthquake Eng., August 2004, Vancouver Canada, 1-5. 8. Jamaluddin K., (2004), Rekabentuk Sistem Kuasa Bendalir, UTM Skudai, Penerbit UTM Skudai, Johor. 9. Majumdar S.R, (2003), Oil Hydraulics System, 2nd Edition, New York, McGraw –Hill. 10. Sullivan J.A,(1998), Fluid Power and Applications, 4th Edition, Ohio USA, Prentice Hall. 11. Watton J., (1989), Fluid Power System, Great Britain, Prentice Hall. 12. McCloy D., Martin H.R, (1980), Control of Fluid Power, Analysis and Design, 2nd Edition, Ontario Canada, John Wiley and Sons. 134 13. Harpur N.F, (1953), Some Design Consideration of Hydraulic Servos of Jack Type, Proc. of Conf. on Hydraulic Servomechanism, February, Inst. of Mechanical Engineers, London. 14. MTS Systems Corp., (1994), Series 256 Servovalves Product Catalogue, USA. 15. Merrit H.E, (1967), Hydraulic Control Systems, N.Y, John Wiley and Sons. 16. Zhao J., Shield C., French C., Posbergh T., (2005), Nonlinear System Modeling and Velocity Feedback Compensation for Effective Force Testing, Journal of Eng. Mechanics, ASCE, March 2005, 1-4. 17. Thayler W.J, MOOG Inc., (1965), Transfer Functions for MOOG Servovalves, Technical Bulletin 103, East Aurora, N.Y. 18. Nikiforuk P.N, Ukrainetz P.R, Tsa S.C, (1969), Detailed Analysis of a Two- Stage Four Way Electrohydraulic Flow Control Valve, Journal of Mech. Eng. Science, 11(2), 168-174. 19. Hewit J.R, Burdes J.S, (1981), Fast Dynamic Decoupled Control for Robotics using Active Force Control, Trans. Mechanism and Machine Theory, 16(5), 535-542. 20. Mailah M., Pitowarno E., Jamaluddin H., Robot Motion Control for Mobile Manipulator using Resolved Acceleration and Proportional-Integral Active Force Control, Int. Journal of Advanced Robotic System, Volume 2, Nov.2 (2005), ISSN 1729-8806. 21. G.J Wierda, Fokker Control System B.V, Delft University of Technology, (2002), |