标题：Optimization of the dynamic performance of the direct drive volume control system based on orthogonal experiment
作者：Huang, Ai Qin ;Wang, Yong
作者机构：[Huang, Ai Qin ;Wang, Yong ] School of Mechanical Engineering Shandong University, Jinan, China;[Huang, Ai Qin ] Research Center of Automatic Control, 更多
来源：Advanced Materials Research
关键词：Direct drive volume control system; Dynamic characteristics; Numerical simulation; Orthogonal test
摘要：Direct drive volume control (DDVC) electro-hydraulic servo system has many advantages compared to the valve control system. However, its application scopes were restricted by its poor dynamic performance. To study the reason for the low dynamic response, mechanical model of DDVC electro-hydraulic servo system is established. Structure parameters influencing the dynamic performance are analyzed. To optimize the structure parameters, the methodology of orthogonal experiment is presented. The selection of factors and levels of the experiment and the choice of the evaluation index are also revealed. The proposed methodology is carried out by simulation software and an optimal configuration is obtained. The dynamic response of the DDVC system with the optimal parameters is simulated. The results show that the dynamic performances are improved. The cross-over frequency ωc increases from 0.0046 rad/s, to 0.0442 rad/s, and the rise time Tr decreases from 488.6s to 47.90s. © (2014) Trans Tech Publications, Switzerland.