摘要
针对液压管路系统振动控制问题,对磁流变液阻尼器的液压管路半主动振动控制进行了研究。对磁流变液阻尼器结构进行了分析,通过机理建模的方法建立了磁流变液输出阻尼力的数学模型,针对磁流变液阻尼器控制电流、活塞运动速度等10个与磁流变阻尼器结构和特性相关的设计参数,建立了其一阶和二阶输出灵敏度方程,得出了系统一阶和二阶输出灵敏度函数表达式;基于Matlab软件求解了其相应的一阶和二阶输出灵敏度函数,结合两项灵敏度指标分析了各参数变化对系统输出阻尼力的影响程度。研究结果表明:当参数变化10%时,励磁线圈匝数、铁芯横截面积以及外筒与活塞缸之间间隙这3个设计参数所引起的输出阻尼力变化百分比最大。
Aiming at the vibration control of the hydraulic pipe system, the semi-active vibration control of the hydraulic pipe was studied. A mathenlatical model of magnetorheological fluid output damping force was established by means of mechanisnl modeling for the sensitivity a- nalysis of MR fluid design parameters. Ainfing at 10 design parameters related to the structure and characteristics of MR damper, the first and the second-order output sensitivity equations were established, and the first-order and second-order output sensitivity function expressions were obtained. Based on Matlab software, the corresponding first-order and second-order output sensitivity functions were solved, the i^ffluence degree of each parameter variation on the dynanfic characteristics of the system was analyzed. The results indicate that when the parameters change by 10%, combining two sensitivity indexes, the three design parameters of the excitation coil turns, the core cross-sectional area and the gap between the outer cylinder and the piston cylinder cause the maximum percentage change of the output damping force.
作者
安晨亮
马金玉
王嘉维
权凌霄
AN Chen-liang;Ma Jin-yu;WANG Jia-wei;QUAN Ling-xiao(Beijing Institute of space launch technology,Beijing 100076,China;Beijing precision mechanical electrical control equipment research institute,Beijing 100076,China;Yanshan University,school of mechanical engineering,Qinhuangdao 066004,China)
出处
《机电工程》
CAS
北大核心
2018年第11期1137-1144,共8页
Journal of Mechanical & Electrical Engineering
基金
国家自然科学基金资助项目(51375423)
关键词
振动控制
磁流变阻尼器
灵敏度分析
灵敏度方程
vibration control
magnetorheological （MRF） damper
sensitivity analysis
sensitivity equation
作者简介
安晨亮（1978-），男，河北张家口人，硕士研究生，高级工程师，主要从事航天发射技术液压系统开发应用方面的研究。E-mail：anch12012@163.com;通信联系人：权凌霄，男，副教授，硕士生导师。E-mail：lingxiao@ysu．edu．cn
