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六自由度运动平台的动态响应特性分析及AMESim仿真
引用本文:谢远党,李维嘉. 六自由度运动平台的动态响应特性分析及AMESim仿真[J]. 机电工程, 2012, 29(3): 290-293
作者姓名:谢远党  李维嘉
作者单位:1. 浙江海洋学院机电工程学院,浙江舟山,316004
2. 华中科技大学,湖北武汉,430074
摘    要:为了解决液压伺服系统中存在负载干扰等的不确定因素对系统造成不稳定性的问题,以伺服系统中的六自由度液压运动平台试验样机为研究对象,通过对伺服系统动态响应特性进行分析的基础上,提出了动态压力输出补偿的鲁棒H∞控制策略,并进行了物理模型的AMESim仿真.研究结果表明:该方法可在较大摄动的情况下获得好的鲁棒性,并且可以满足设计要求的响应频宽,从而保证平台运动的响应速度和精度.

关 键 词:六自由度  液压伺服  AMESim  H∞控制策略

Analysis on response characteristics of 6-DOF platform and its simulation with AMESim
XIE Yuan-dang , LI Wei-jia. Analysis on response characteristics of 6-DOF platform and its simulation with AMESim[J]. Mechanical & Electrical Engineering Magazine, 2012, 29(3): 290-293
Authors:XIE Yuan-dang    LI Wei-jia
Affiliation:1.School of Electrical Engineering,Zhejiang Ocean University,Zhoushan 316004,China; 2.College of Marine Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)
Abstract:In order to solve the unstable problems in hydraulic servo system due to some uncertain factors(load disturbance,etc.),an experimental prototype on a hydraulic motion platform with six degrees of freedom in a servo system was studied.A robust control strategy for dynamic pressure output back-off was put forward by analyzing dynamic response characteristics in the servo system and simulating with AMESim.The results show that,using this method,a better robustness is obtained under a larger disturbance,and the response bandwidth meets the design requirement which will ensure the response speed and accuracy of the platform motion.
Keywords:six degrees of freedom  hydraulic servo  AMESim  H∞ control strategy
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