基于模型确认的磁悬浮轴承转子系统建模及响应预测方法

项目名称： 基于模型确认的磁悬浮轴承转子系统建模及响应预测方法

项目编号： No.51275240

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 机械、仪表工业

项目作者： 郭勤涛

作者单位： 南京航空航天大学

项目金额： 82万元

中文摘要： 主动磁悬浮轴承转子系统是最具代表性的复杂机电系统之一。磁轴承转子系统的动力学特性、运行稳定性和可靠性是磁悬浮轴承技术的关键。目前对磁悬浮轴承转子系统的仿真多数是对磁力系统、控制系统和机械转子结构分别进行建模仿真，忽略或弱化了子系统之间的耦合或相互影响，难以支撑系统统一建模和协同设计，无法将各子系统进行更好的匹配和优化。本项目研究一种全局建模仿真的系统设计方法，同时对磁轴承各子系统进行机电一体化的整体联合建模，描述磁轴承系统的全局特性。由于磁轴承系统存在建模误差以及实际运行过程中的一些不确定性因素，本项目将以模型确认技术为支撑，采用系统分层的建模策略，在考虑各种不确定性的基础上对各子系统进行整体联合建模，最后给出整个系统及关键部件动态特性的响应预测及其可信度，为磁轴承系统的顶层设计和优化提供可信的模型。本项目的研究将推动模型确认技术在复杂机电系统建模仿真中进一步的发展和应用。

中文关键词： 机电系统；模型确认；磁轴承转子；不确定性分析；响应预测

英文摘要： The Active Magnetic Bearing (AMB) rotor system is one of the most typical and complex Electromechanical systems. The dynamic performance, stability and reliability of the AMB-Rotor system are the key technologies in the research. Presently, the subsystems of the AMB-Rotor, such as the magnetic system, control system and rotor dynamic are mostly modeled and simulated separately, which will ignore or weaken the coupling and influence between the subsystems. Without the integral modeling and collaborative design, the subsystems of AMB-Rotor system cannot compatible well and optimization. This project will develop an integral modeling and simulation method. With this method, the electro-mechanical integration model which can subscribe the overall character of the AMB-Rotor will be built. There are kinds of model errors and uncertainties when we build the electro-mechanical integration model of the AMB-Rotor system. To deal with the uncertainties, model validation method will be used to build the precise model of the subsystems by divided into layers. The validated integration model can predict the dynamic response of the whole system or the key parts in the system. Also, the credibility of the prediction will be given which can provide reliable model for the global design and optimization of the system. The research

英文关键词： electromechanical system；model validation；active magnetic bearing rotor；uncertainty analysis；response prediction