CAJ | 학술논문

针对液压系统故障表象多样造成底层故障溯源困难的问题，以液压缸内外泄漏为故障事例，研究了底层虚拟故障信息的构造方法，将虚拟故障信息注入到活塞杆线性定位系统一体化仿真模型中，获得了虚拟故障对系统响应特征的影响及其差异。采用正交试验设计方法(DOE)对系统多个参数进行灵敏度分析，获得了影响系统性能的关键参数。进一步构造了基于时间乘绝对误差积分准则(ITAE)的最优算法器，对系统关键参数进行优化。研究表明，优化后的系统响应对内外泄漏故障敏感性降低。研究方法为复杂液压系统的故障源辨识和抗故障设计提供了参考。
침대액압계통고장표상다양조성저층고장소원곤난적문제，이액압항내외설루위고장사례，연구료저층허의고장신식적구조방법，장허의고장신식주입도활새간선성정위계통일체화방진모형중，획득료허의고장대계통향응특정적영향급기차이。채용정교시험설계방법(DOE)대계통다개삼수진행령민도분석，획득료영향계통성능적관건삼수。진일보구조료기우시간승절대오차적분준칙(ITAE)적최우산법기，대계통관건삼수진행우화。연구표명，우화후적계통향응대내외설루고장민감성강저。연구방법위복잡액압계통적고장원변식화항고장설계제공료삼고。
Aiming at diverse representation of hydraulic system fault,that resulted in the appear-ance of difficult issues underlying fault traceable.Taking internal and external leakage of hydraulic cylinder as a typical fault example,the construction method of the underlying virtual fault information was studied and the virtual fault information was injected into the piston rod linear positioning system integrated simulation model,the effects and differences of the system response characteristics were obtained based on the virtual fault.Sensitivity analyses on a number of operating parameters of the system by means of orthogonal experimental design method (DOE),the key parameters that affected system performance were obtained.Furthermore,the key parameters of the system were optimized by constructing an optimal algorithm based on integrated time absolute error criterion (ITAE)and the results show that the optimized system response leads to decrease in the sensitivity faults.The meth-od provides a reference to fault sources identification and anti-failure design of complex hydraulic sys-tems.