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| 基于Δ-Υ等效变换的SGCMG高速转子轴向振动特性分析及验证 | |
| 引用本文： | 罗睿智,虎刚,王全武.基于Δ-Υ等效变换的SGCMG高速转子轴向振动特性分析及验证[J].空间控制技术与应用,2011,37(2):14-20. |
| 作者姓名： | 罗睿智 虎刚 王全武 |
| 作者单位： | 1. 北京控制工程研究所,北京,100190;空间智能控制技术重点实验室,北京,100190 2. 中国长城工业总公司,北京,100195 3. 北京控制工程研究所,北京,100190 |
| 摘 要： | 悬臂式单框架控制力矩陀螺（SGCMG）的轴向振动较为剧烈,频率成分也比较复杂;由于这种SGCMG结构是由众多串、并联,甚至桥联的弹性构件组成的,因此难以建立其精确的轴向动力学模型.首先通过Δ-Υ等效变换的方法,简化了高速转子的轴向串并联关系,进而计算出其轴向刚度;其次详细分析了系统激振源——预紧轴承各零部件的加工波纹所导致的预紧力的波动,并采用相互调幅的形式描述了该波动量;然后建立了高速转子的轴向动力学方程;最后通过数值仿真和实测结果的对比验证了分析的合理性和模型的有效性. |
| 关 键 词： | Δ-Υ等效变换 轴承加工偏差 高速转子 轴向振动 动力学建模 |
Axial Vibration Analysis and Validity of High-Speed Rotor of Cantilever SGCMG Based on a Triangle-Star Equivalent Transformation |
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| LUO Ruizhi,HU Gang,WANG Quanwu.Axial Vibration Analysis and Validity of High-Speed Rotor of Cantilever SGCMG Based on a Triangle-Star Equivalent Transformation[J].Aerospace Contrd and Application,2011,37(2):14-20. | |
| Authors: | LUO Ruizhi HU Gang WANG Quanwu |
| Institution: | LUO Ruizhi1,2,HU Gang3,WANG Quanwu1(1.Beijing Institute of Control Engineering,Beijing 100190,China,2.Science and Technology on Space Intelligent Control Laboratory,3.China Great Wall Industry Corporation,Beijing 100095,China) |
| Abstract: | Cantilever single gimbal control moment gyroscope(SGCMG) excites severe axial vibration which includes some complex frequency components.Because the SGCMG structure consists of many elastic members with series and parallel,even bridging connection,it is very difficult to directly establish its accurate axial dynamics model.Firstly,the axial connection between components of high-speed rotor is simplified by using the method of equivalent transformation between the triangle and the star;thus,the axial stiffne... |
| Keywords: | triangle-star equivalent transformation bearing processing error high-speed rotor axial vibration dynamics modeling |
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