项目名称: 电磁轴承-复杂柔性转子系统动力学建模及其振动主动控制
项目编号: No.11272288
项目类型: 面上项目
立项/批准年度: 2013
项目学科: 数理科学和化学
项目作者: 蒋科坚
作者单位: 浙江理工大学
项目金额: 78万元
中文摘要: 电磁轴承是一种新兴的转子磁悬浮支承技术,其优势是无摩擦高速运行和可实现转子振动主动控制。柔性转子是转子轻量化设计的需求。目前,对电磁轴承支承的柔性转子系统动力学研究还较为初步,特别是考虑基础激励因素的电磁轴承-复杂柔性转子系统的研究更是鲜有涉足,是转子动力学新的研究内容。本申请研究项目将探讨和解决如下问题: 1:构建较为完善的基础激励-电磁轴承-复杂柔性转子系统动力学建模理论,为柔性转子振动主动控制提供理论指导和仿真工具。 2:采用主动控制手段,使电磁轴承-复杂柔性转子系统转速超越多阶临界。针对柔性转子振动的实际问题,设计多目标节点振动的最优控制策略,以及兼顾转子振动和电磁力功率需求的多控制目标混合最优控制策略。 3:柔性转子系统基础激励响应的抑制问题。 本项研究旨在为基础激励-电磁轴承-复杂柔性转子系统动力学研究提供一套较为完整的理论体系,以及复杂柔性转子振动主动控制的具体实现方法。
中文关键词: 电磁轴承;柔性转子;振动主动控制;临界转速;基础激励
英文摘要: The active magnetic bearing(AMB) is a novel levitating technology for the rotor supporting, whose advantages are high speed operation with no friction and active control for rotor vibration. Otherwise, to meet the demand for the rotor with smaller size and lighter weight, the flexible rotors are designed. Presently, the dynamics research of the flexible rotor systems with AMB supporting is still in the preliminary stage. Especially, few researcher focused their attention on the AMB-complex flexible rotor systems in consider of the foundation excitation, which is the new content of the rotor dynamics. This research will study the following questions. 1. To construct an advanced model for the foundation excitation-AMB-complex flexible rotor systems, which is the theory instruction and simulation tool for the active vibration control of the flexible rotor. 2. With the active control, how to speed up the AMB-complex flexible rotor system to exceed its multi-order critical speeds? To meet the practice problems for the flexible rotor control, the control strategy will be proposed to refer the index of control performance to the cost function synthesizing the vibration of the multi- object nodes, in addition, considering the balance of the rotor vibration and the magnetic force demand. 3. How to suppress the respons
英文关键词: active magnetic bearing;flexible rotor;active vibration control;critical speed;foundation exitation