空间微振动多维磁浮隔振系统设计方法及动态特性研究

项目名称： 空间微振动多维磁浮隔振系统设计方法及动态特性研究

项目编号： No.51475117

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 机械、仪表工业

项目作者： 岳洪浩

作者单位： 哈尔滨工业大学

项目金额： 83万元

中文摘要： 航天器低频微幅振动是影响空间高分辨率对地成像、重力梯度测量以及空间微重力试验的首要因素。受作用机理限制，被动及接触式主动控制方法已被证实无法实现对此类微振动的有效隔离，基于磁悬浮原理的非接触隔振技术成为解决该问题的优选。本项目针对国内外对空间微振动磁浮隔离系统设计方法、多源扰动行为和高保真动力学建模等研究不足的现状，通过建立隔振系统设计方法体系,探索全参数非线性动力学建模、多闭环控制策略和微振动地面模拟方法，突破空间环境下磁悬浮多维隔振系统的机-电-磁-热耦合设计、磁悬浮微振动隔离系统的多源扰动力学行为及机理等关键科学问题，将主动控制后的0.1-100Hz空间微振动幅值降低至10μg水平。本项目取得的成果将推动我国空间微振动主动隔振技术的发展，为其在航天工程中的应用提供理论基础和技术支撑。

中文关键词： 磁悬浮；空间微振动；设计方法；动态特性

英文摘要： The low-frequency and low-amplitude disturbances are the main reasons that influence the high resolution observation, gravity gradient measurement and the space microgravity experiments. Restricted by the mechanism, it has been verified that the passive vibration isolation method and the active contacting vibration isolation method are unable to achieve effective isolation of micro vibration. So the non-contacting vibration isolation technology, which is based on the magnetic levitation principle, becomes the first choice of the micro vibration isolation problem. Aiming at the insufficient research of design approach of magnetic levitation vibration isolation system, multiple source disturbance and high fidelity dynamic modeling, by establishing the design method of vibration isolation system and exploring the parameterized nonlinear dynamic model, multi-closed-loop control strategy and ground simulation method of micro vibration, the key scientific problems of the mechanical - electrical - magnetic -thermal coupled multidimensional magnetic levitation vibration isolation system and multi-source disturbance mechanical behavior and mechanism of the vibration isolation system will be break through. The amplitude after vibration in frequency range 0.1-100Hz will change to 10μg. The achievements of the project will promote the development of active micro vibration isolation technology in space, and will provide theoretical basis and technical support for its application in aerospace engineering.

英文关键词： magnetic levitation;space micro vibration;design method;dynamic characteristics