机床与液压
機床與液壓
궤상여액압
MACHINE TOOL & HYDRAULICS
2015年
1期
68-73
,共6页
电液伺服系统%阀前压力脉动%振动台%蓄能器%滤波
電液伺服繫統%閥前壓力脈動%振動檯%蓄能器%濾波
전액사복계통%벌전압력맥동%진동태%축능기%려파
Electro-hydraulic servo system%Pressure pulsation before valve%Vibrostand%Energy accumulator%Smoothing
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。
高頻、高精度的電液振動檯繫統中,閥前壓力的脈動必鬚加以攷慮,此處主要分析壓力脈動產生的機製及其抑製方法,利用AMESim軟件建立電液伺服繫統倣真模型,分彆對輸入信號、蓄能器對閥前壓力脈動的影響進行倣真分析,併通過實驗對理論與倣真分析進行驗證,實驗結果錶明:蓄能器在一定頻率和幅值範圍內對閥前壓力脈動具有較好的衰減作用。
고빈、고정도적전액진동태계통중,벌전압력적맥동필수가이고필,차처주요분석압력맥동산생적궤제급기억제방법,이용AMESim연건건립전액사복계통방진모형,분별대수입신호、축능기대벌전압력맥동적영향진행방진분석,병통과실험대이론여방진분석진행험증,실험결과표명:축능기재일정빈솔화폭치범위내대벌전압력맥동구유교호적쇠감작용。
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 veri?fied 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.