阀前压力脉动的仿真与实验研究
|
摘要
高频、高精度的电液振动台系统中,阀前压力的脉动必须加以考虑,此处主要分析压力脉动产生的机制及其抑制方法,利用AMESim软件建立电液伺服系统仿真模型,分别对输入信号、蓄能器对阀前压力脉动的影响进行仿真分析,并通过实验对理论与仿真分析进行验证,实验结果表明:蓄能器在一定频率和幅值范围内对阀前压力脉动具有较好的衰减作用。
In the high-frequency,high-precision electro-hydraulic vibrostand system,pressure pulsation before the valve must be considered. Here the main mechanism of pressure pulsation generated and suppression methods were analyzed mainly,and the AMESim software was used to establish the electro-hydraulic servo system simulation model. The influence of pressure pulsation before the valve from the input signal and the accumulator was analyzed with simulation respectively,and the theory and simulation analysis were verified by experiment. The experimental results show that the accumulator has a good damping effect to the pressure pulsation before the valve within a certain range of frequencies and amplitudes.
In the high-frequency,high-precision electro-hydraulic vibrostand system,pressure pulsation before the valve must be considered. Here the main mechanism of pressure pulsation generated and suppression methods were analyzed mainly,and the AMESim software was used to establish the electro-hydraulic servo system simulation model. The influence of pressure pulsation before the valve from the input signal and the accumulator was analyzed with simulation respectively,and the theory and simulation analysis were verified by experiment. The experimental results show that the accumulator has a good damping effect to the pressure pulsation before the valve within a certain range of frequencies and amplitudes.
引文
[1]唐贞云,李振宝,纪金豹,等.地震模拟振动台控制系统的发展[J].地震工程与工程振动,2009,29(6):162-169.
[2]邢科礼,冯玉,金侠杰,等.基于AMESim/Matlab的电液伺服控制系统的仿真研究[J].机床与液压,2004(10):57-58.
[3]郭江波,邢科礼,金侠杰.电液伺服阀前压力脉动的仿真研究[J].机床与液压,2004(7):38-39,80.
[4]高纪念,吴伟,职黎光.抽油机电液伺服模拟系统伺服阀前压力脉动分析[J].西安石油学报,1997,12(1):35-37.
[5]JIN Xiaohong,RONG Zhijun.Research on the Adaptive Model for Electro-hydraulic Position Servo System with the External Disturbances[C].Proceedings of the Fourth Intemational Symposium on Fluid Power Transmission and Control(ISFP’2003),International Academic Publishers,2003:198-201.
[6]张齐生,金呈虎,王益群,等.阀前蓄能器对轧机油源波动影响的实验研究[J].液压与气动,2011(3):82-84.
[7]邢科礼,葛思华,丁崇生.基于神经网络的有源压力脉动衰减的试验研究[J].液压气动与密封,2001(2):2-4.
[8]HAN Songshan,JIAO Zongxia,SHANG Yaoxing,et al.Compensation Control for the Supply Pressure Fluctuation in Electro-hydraulic Load Simulator[C].2011 International Conference on Fluid Power and Mechatronics,2011:914-919.
[9]ZHAO Jingyi,LI Jiutong,WANG Yiqun.Experimental Study on Influence of Supplied Pressure Fluctuation on Output Aracteristic of Pressure Control System of Rolling Mill[J].Chinese Journal of Mechanical Engineering,1998(2).
[2]邢科礼,冯玉,金侠杰,等.基于AMESim/Matlab的电液伺服控制系统的仿真研究[J].机床与液压,2004(10):57-58.
[3]郭江波,邢科礼,金侠杰.电液伺服阀前压力脉动的仿真研究[J].机床与液压,2004(7):38-39,80.
[4]高纪念,吴伟,职黎光.抽油机电液伺服模拟系统伺服阀前压力脉动分析[J].西安石油学报,1997,12(1):35-37.
[5]JIN Xiaohong,RONG Zhijun.Research on the Adaptive Model for Electro-hydraulic Position Servo System with the External Disturbances[C].Proceedings of the Fourth Intemational Symposium on Fluid Power Transmission and Control(ISFP’2003),International Academic Publishers,2003:198-201.
[6]张齐生,金呈虎,王益群,等.阀前蓄能器对轧机油源波动影响的实验研究[J].液压与气动,2011(3):82-84.
[7]邢科礼,葛思华,丁崇生.基于神经网络的有源压力脉动衰减的试验研究[J].液压气动与密封,2001(2):2-4.
[8]HAN Songshan,JIAO Zongxia,SHANG Yaoxing,et al.Compensation Control for the Supply Pressure Fluctuation in Electro-hydraulic Load Simulator[C].2011 International Conference on Fluid Power and Mechatronics,2011:914-919.
[9]ZHAO Jingyi,LI Jiutong,WANG Yiqun.Experimental Study on Influence of Supplied Pressure Fluctuation on Output Aracteristic of Pressure Control System of Rolling Mill[J].Chinese Journal of Mechanical Engineering,1998(2).
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心