多源复杂激励下磁悬浮隔振系统机电耦合动力学模型及控制机理研究

项目名称： 多源复杂激励下磁悬浮隔振系统机电耦合动力学模型及控制机理研究

项目编号： No.51205296

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 机械工程学科

项目作者： 宋春生

作者单位： 武汉理工大学

项目金额： 25万元

中文摘要： 潜艇声隐身性能的好坏对我国国防安全具有极其重要的意义。随着潜艇的发展，其内部机械设备的结构和激励方式越来越复杂，由于空间和重量所限，很多设备刚性或弹性安装在一起共同组成多源复杂激励的隔振对象。主动隔振技术能够克服被动隔振技术低频及谐振区隔振性能差的缺陷。与其它主动隔振技术相比，磁悬浮隔振技术具有频响范围宽、响应快、高可靠性和电磁力随控制参数易于调控的优势。应用磁悬浮隔振器能够有效解决多源复杂激励隔振系统隔振性能不足的问题。然而在多源复杂激励下，磁悬浮隔振器工作点变化范围大，导致强烈的非线性，且多个激励源之间、多个磁悬浮隔振器之间及激励源与磁悬浮隔振器之间存在耦合，现有的磁悬浮隔振理论与模型不能满足要求。为此，本项目拟研究多源复杂激励下磁悬浮隔振器建模，建立多源复杂激励下磁悬浮隔振系统非线性机电耦合动力学模型并研究其控制机理，为磁悬浮隔振技术在多源复杂激励隔振系统中的应用奠定理论基础。

中文关键词： 磁悬浮主动隔振；多源激励；模型辨识；主动控制；

英文摘要： It has the extremely vital significance to the national defense security to improve the performance of the submarines acoustic stealthy.With the development of the submarine, the structure of the mechanical equipments and the exciting mode has become more and more complicated. Due to the limits of space and weight in submarine, a lot of equipments either rigidly or flexibly were installed together to consist a multiple complex excitations isolation object .The active vibration isolation technology can overcome the defects of passive vibration isolation technology that the poor vibration isolation performance in low and resonant frequencies. Compared with other active vibration isolation technologies, magnetic suspension isolation technology has shown useful characteristics, such as wide response frequency range, fast response, high reliability,and the electromagnetic force adjusted easily by changing controller's parameters on-line.Therefore, it is significance that magnetic suspension isolator is applied in the passive vibration isolation system with multiple complex excitations to improve low-frequency vibration isolation performance. However, under the multiple complex excitations, the working-point of the magnetic suspension isolator fluctuates in wide range, which leads to the great nonlinearity. Moreover,

英文关键词： Magnetic suspension vibration isolation；Multiple excitations；Model identification；Active control；