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Volume 33 Issue 09
Sep.  2007
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Journal of Beijing University of Aeronautics and Astronautics  > 2007  >  33(09): 1060-1063.
Shi Hongyin, Zhou Yinqing, Chen Jieet al. Performance analysis and improved method for airborne three-channel SAR/GMTI system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(7): 904-908. (in Chinese)
Citation: Ouyang Pingchao, Jiao Zongxia, Liu Hongmeiet al. Study on distributed active control of fluid pulsation in hydraulic piping[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(09): 1060-1063. (in Chinese)
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Study on distributed active control of fluid pulsation in hydraulic piping

  • School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 26 Sep 2006
  • Publish Date: 30 Sep 2007
    Abstract
  • Periodic fluid pulsation in aeroplane hydraulic piping could induce fluid-construction vibration and lead to fatigue damage. It is impossible to find the error sensor′s optimization location because of the pressure standing wave, and the pulsation attenuation effect is not perfect when adopting pulsation attenuation at single point. For this reason, a distributed active control method of fluid pulsation was presented. To avoid stationary point in all aviation states, several fluid pulsation actuators and error pressure sensors were placed along the piping. The second fluid pulsation produced by actuators can counteract the primary pulsation brought by aviation piston pump and make the mean pulsation of whole piping minimum when adopting adaptive feedforward control and the filtered-X least mean square( LMS) algorithm. In order to validate the vibration attenuation effect, a test platform was designed and built. Experiment results show that the distributed pulsation active control method adopted in the paper can attenuate the fluid pulsation effectively and the pulsation attenuation is over 10 dB.

     

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  • [1] Eiichi K, Masaaki S ,Tadashi Y, et al. Development of an active attenuator for pressure pulsation in liquid piping system[J]. Transactions of the Japan Society of Mechanical Engineers,1993, 59(586):152-159 [2] Brennan M J, Elliott S J, Pinnington R J. A non-intrusive fluid-wave actuator and sensor pair for the active control of fluid-borne vibrations in a pipe[J]. Smart Materials and Structures,1996, 5(3):281-296 [3] Jiao Zongxia, Chen Ping, Hua Qing, et al. Adaptive vibration active control of fluid pressure pulsations[J]. Proceedings of the Institution of Mechanical Engineers Part I-Journal of Systems and Control Engineering, 2003, 217(4):311-318 [4] 焦宗夏,陈平,华清. 液压能源管路系统振动主动控制的理论研究[J].北京航空航天大学学报, 2002, 28(4):465-469 Jiao Zongxia, Chen Ping, Hua Qing. Theoretical study on vibration active control of power supply and pipeline system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(4):465-469(in Chinese) [5] 潘陆源.高压液压系统的研究 .北京:北京航空航天大学子自动化科学与电气工程学院,2000 Pan Luyuan. Research on high pressure hydraulic system .Beijing:School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics,2000(in Chinese)
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