标题：Dynamic analysis of an active flexible isolation system
作者：Song, Kongjie ;Sun, Yuguo ;Sun, Lingling ;Zhang, Bing
作者机构：[Song, Kongjie ;Sun, Yuguo ;Sun, Lingling ;Zhang, Bing ] School of Mechanical Engineering, Shandong University, Jinan, 250061, China
会议名称：2003 ASME Design Engineering Technical Conferences and Computers and Information in Engineering Conference
会议日期：2 September 2003 through 6 September 2003
来源：Proceedings of the ASME Design Engineering Technical Conference
关键词：Active control; Dynamical system; Power flow; Vibration isolation
摘要：This paper is dedicated to the structure dynamic modification in an active isolation system supported by a flexible foundation, in order to improve the effectiveness of the active control strategy. The coupled vibration between machine-sprung and flexible foundation substructure is examined, using the subsystem mobility method. The vibration transmission in this coupled system is presented in terms of power flow. The interaction between structure controlled and the adaptive feed-forward controller is investigated theoretically. The numerical results show that: the location of the active mounts and the first mode frequency of the flexible foundation have evident influence on the effect of active control, especially at low-frequency band.