摘要
对应用于大射电望远镜中的索振动问题进行了研究,建立了索振动的微分方程,进而由Hamil ton原理求出了抑制索振动的优化控制力并利用支承轴向移动对索自由振动实施主动控制,减小了拖动馈源舱柔索的振动幅度,对所提方法通过数值计算加以说明。
The vibration of cables used in large radio telescope is investigated in this paper. To begin with,the differential Eq. of cable vibration is formulated. Then, the optimal control force is derived by utilizing Hamilton's principle and the active control of free vibration through axial support movement are suggested. Numerical result is given for the method.
出处
《电子机械工程》
2004年第3期62-64,共3页
Electro-Mechanical Engineering
基金
国家自然科学基金(50075065)
国家天文观测中心大射电望远镜资助项目。
关键词
柔索
振动
控制
cable
vibration
active control
