根据工厂的试验统计,在仿形加工的全部误差中,液压随动系统误差约占一半左右。如何提高液压仿形精度也就成了一个很突出的问题,同时,稳定性是随动系统正常工作的必要条件,因此它是系统最重要的特性。通常提高稳定性都会伴随着精度的相应降低,所以我们认为既能保证系统稳定性又能提高系统精度的方法是一种可取的方法。 According to the factory’s test statistics, in the error of the profiling process, the hydraulic servo system error accounts for about half. How to improve the accuracy of hydraulic profiling also becomes a prominent problem. At the same time, stability is the necessary condition for the servo system to work normally. Therefore, it is the most important characteristic of the system. Usually improve the stability will be accompanied by a corresponding reduction in accuracy, so we believe that both to ensure system stability and improve the accuracy of the system is a desirable method.