机床与液压
機床與液壓
궤상여액압
MACHINE TOOL & HYDRAULICS
2013年
3期
130-133
,共4页
电液振动台%伺服阀%开口-频响特性%离心场环境%非线性建模
電液振動檯%伺服閥%開口-頻響特性%離心場環境%非線性建模
전액진동태%사복벌%개구-빈향특성%리심장배경%비선성건모
Electro-hydraulic shaker%Servo valve%Opening and frequency response%Centrifugal field%Nonlinear modeling
在许多常见的电液振动台仿真模型中,都将伺服阀假设为线性或忽略其开口-频响动态特性,这样构造的仿真模型在处理离心场下的地震波再现时将存在明显的高频段失真现象.以MATLAB/ Simulink软件为工具,重点设计了能够体现开口-频响非线性动态特性的伺服阀仿真模型,完成了电液振动台的建模,并通过仿真验证了该模型的有效性.
在許多常見的電液振動檯倣真模型中,都將伺服閥假設為線性或忽略其開口-頻響動態特性,這樣構造的倣真模型在處理離心場下的地震波再現時將存在明顯的高頻段失真現象.以MATLAB/ Simulink軟件為工具,重點設計瞭能夠體現開口-頻響非線性動態特性的伺服閥倣真模型,完成瞭電液振動檯的建模,併通過倣真驗證瞭該模型的有效性.
재허다상견적전액진동태방진모형중,도장사복벌가설위선성혹홀략기개구-빈향동태특성,저양구조적방진모형재처리리심장하적지진파재현시장존재명현적고빈단실진현상.이MATLAB/ Simulink연건위공구,중점설계료능구체현개구-빈향비선성동태특성적사복벌방진모형,완성료전액진동태적건모,병통과방진험증료해모형적유효성.
@@@@In many common models of the electro-hydraulic shaker,the servo valve is assumed to be linear,or its “opening and frequency-response”dynamic characteristics are neglected. There is significant high-frequency distortion when processing the output of reproducing seismic wave by the model. Based on MATLAB/ Simulink software,a model was designed in which the “opening and fre-quency-response”dynamic characteristics of the servo valve were considered,and the model of the electro-hydraulic shaker was com-pleted. The validity of this model is verified by simulation.
