The Experts below are selected from a list of 60 Experts worldwide ranked by ideXlab platform
Li Yunhua - One of the best experts on this subject based on the ideXlab platform.
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Active Control on Fluid Borne Pulsation Using Piezoelectric Valve as Absorber
2006 IEEE Conference on Robotics Automation and Mechatronics, 2006Co-Authors: Ouyang Pingchao, Jiao Zongxia, Liu Hongmei, Li Shuli, Li YunhuaAbstract:With the development of the aircraft hydraulic power supply system towards high pressure and large load, the fluid borne Pulsation has become increasingly a vital problem demanding an urgent solution. Passive Pulsation Dampers have been used traditionally to reduce the fluid borne pressure Pulsations of high frequencies, but the application of such passive devices are limited in low frequency conditions because of their bulk volumes and poor performances. This paper presented a vibration active control method using piezoelectric direct drive servovalve to reduce the vibration of fluid power supply and pipeline systems. The theory of vibration active control based on the piezoelectric direct drive servo was illustrated in detail. Models of the piezoelectric direct drive servovalve, aero-pump and fluid-structure coupling vibration were established. The auto optimum control method was adopted, which can adjust control parameters at any time against the disturbance. A simulation platform was designed and built to validate the vibration attenuation efficiency. The simulation results show that the vibration active control method is adaptive and robust against disturbance, and can keep the vibration minimum under variable speed and load
Jiahui Luan - One of the best experts on this subject based on the ideXlab platform.
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CSIE (5) - Vibration Active Control of Fluid Pulsation Based Piezoelectric Valve
2009 WRI World Congress on Computer Science and Information Engineering, 2009Co-Authors: Pingchao Ouyang, Chen Lu, Jiahui LuanAbstract:With the development of the aircraft hydraulic power supply system towards high pressure and large load, Fluid-borne vibration in piping systems leads to serious problems. Because of pump’s periodic flow Pulsation and fluid-structure interaction, mechanical fatigue can readily take place. Traditionally, passive Pulsation Dampers have been used to reduce fluid Pulsation of high frequencies, but the application of such passive devices is limited in low frequency conditions because of their bulk volumes or poor performances. This paper presented a distributed active control method using piezoelectric direct drive servovalve to reduce the fluid Pulsation in pipeline systems. The idea of distributed vibration active control based on the piezoelectric direct drive servo was described in detail. Models of the piezoelectric direct drive servovalve, aero-pump and fluid-structure coupling vibration were established. The control method can adjust control parameters adaptively against the disturbance. A test platform was designed and built to validate the vibration attenuation efficiency. The experimental results show that the vibration active control method is adaptive and robust against disturbance, and can keep the vibration minimum under variable speed and load.
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Vibration Active Control of Fluid Pulsation Based Piezoelectric Valve
2009 WRI World Congress on Computer Science and Information Engineering, 2009Co-Authors: Hongmei Liu, Pingchao Ouyang, Yunlong Cai, Chen Lu, Jiahui LuanAbstract:With the development of the aircraft hydraulic power supply system towards high pressure and large load, Fluid-borne vibration in piping systems leads to serious problems. Because of pump's periodic flow Pulsation and fluid-structure interaction, mechanical fatigue can readily take place. Traditionally, passive Pulsation Dampers have been used to reduce fluid Pulsation of high frequencies, but the application of such passive devices is limited in low frequency conditions because of their bulk volumes or poor performances. This paper presented a distributed active control method using piezoelectric direct drive servovalve to reduce the fluid Pulsation in pipeline systems. The idea of distributed vibration active control based on the piezoelectric direct drive servo was described in detail. Models of the piezoelectric direct drive servovalve, aero-pump and fluid-structure coupling vibration were established. The control method can adjust control parameters adaptively against the disturbance. A test platform was designed and built to validate the vibration attenuation efficiency. The experimental results show that the vibration active control method is adaptive and robust against disturbance, and can keep the vibration minimum under variable speed and load.
Ouyang Pingchao - One of the best experts on this subject based on the ideXlab platform.
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Active Control on Fluid Borne Pulsation Using Piezoelectric Valve as Absorber
2006 IEEE Conference on Robotics Automation and Mechatronics, 2006Co-Authors: Ouyang Pingchao, Jiao Zongxia, Liu Hongmei, Li Shuli, Li YunhuaAbstract:With the development of the aircraft hydraulic power supply system towards high pressure and large load, the fluid borne Pulsation has become increasingly a vital problem demanding an urgent solution. Passive Pulsation Dampers have been used traditionally to reduce the fluid borne pressure Pulsations of high frequencies, but the application of such passive devices are limited in low frequency conditions because of their bulk volumes and poor performances. This paper presented a vibration active control method using piezoelectric direct drive servovalve to reduce the vibration of fluid power supply and pipeline systems. The theory of vibration active control based on the piezoelectric direct drive servo was illustrated in detail. Models of the piezoelectric direct drive servovalve, aero-pump and fluid-structure coupling vibration were established. The auto optimum control method was adopted, which can adjust control parameters at any time against the disturbance. A simulation platform was designed and built to validate the vibration attenuation efficiency. The simulation results show that the vibration active control method is adaptive and robust against disturbance, and can keep the vibration minimum under variable speed and load
Liu Hongmei - One of the best experts on this subject based on the ideXlab platform.
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Active Control on Fluid Borne Pulsation Using Piezoelectric Valve as Absorber
2006 IEEE Conference on Robotics Automation and Mechatronics, 2006Co-Authors: Ouyang Pingchao, Jiao Zongxia, Liu Hongmei, Li Shuli, Li YunhuaAbstract:With the development of the aircraft hydraulic power supply system towards high pressure and large load, the fluid borne Pulsation has become increasingly a vital problem demanding an urgent solution. Passive Pulsation Dampers have been used traditionally to reduce the fluid borne pressure Pulsations of high frequencies, but the application of such passive devices are limited in low frequency conditions because of their bulk volumes and poor performances. This paper presented a vibration active control method using piezoelectric direct drive servovalve to reduce the vibration of fluid power supply and pipeline systems. The theory of vibration active control based on the piezoelectric direct drive servo was illustrated in detail. Models of the piezoelectric direct drive servovalve, aero-pump and fluid-structure coupling vibration were established. The auto optimum control method was adopted, which can adjust control parameters at any time against the disturbance. A simulation platform was designed and built to validate the vibration attenuation efficiency. The simulation results show that the vibration active control method is adaptive and robust against disturbance, and can keep the vibration minimum under variable speed and load
Li Shuli - One of the best experts on this subject based on the ideXlab platform.
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Active Control on Fluid Borne Pulsation Using Piezoelectric Valve as Absorber
2006 IEEE Conference on Robotics Automation and Mechatronics, 2006Co-Authors: Ouyang Pingchao, Jiao Zongxia, Liu Hongmei, Li Shuli, Li YunhuaAbstract:With the development of the aircraft hydraulic power supply system towards high pressure and large load, the fluid borne Pulsation has become increasingly a vital problem demanding an urgent solution. Passive Pulsation Dampers have been used traditionally to reduce the fluid borne pressure Pulsations of high frequencies, but the application of such passive devices are limited in low frequency conditions because of their bulk volumes and poor performances. This paper presented a vibration active control method using piezoelectric direct drive servovalve to reduce the vibration of fluid power supply and pipeline systems. The theory of vibration active control based on the piezoelectric direct drive servo was illustrated in detail. Models of the piezoelectric direct drive servovalve, aero-pump and fluid-structure coupling vibration were established. The auto optimum control method was adopted, which can adjust control parameters at any time against the disturbance. A simulation platform was designed and built to validate the vibration attenuation efficiency. The simulation results show that the vibration active control method is adaptive and robust against disturbance, and can keep the vibration minimum under variable speed and load
