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本文对带有惯性负载的阀控不对称油缸伺服系统的频率特性进行了研究,提出了油缸运动的基本方程式并推导出近似解,进行了实验,实验结果表明在频率小于10HZ的范围内计算值与实验值相符。其结论是,就增益而言,不管输入多么小,油缸面积比的影响都是不可忽略的,文中导出的近似公式用于计算小于10HZ的频率特性较准确。
In this paper, the frequency characteristics of the valve-controlled asymmetric cylinder servo system with inertia load are studied. The basic equation of the cylinder movement is proposed and the approximate solution is deduced. The experimental results show that when the frequency is less than 10HZ, In line with the experimental value. The conclusion is that in terms of gain, no matter how small the input is, the influence of cylinder area ratio can not be ignored. The approximate formula derived in this paper is more accurate for calculating the frequency characteristics of less than 10Hz.