[1]袁杰,徐赵东,陈曦.精密平台混合隔减振系统的分析及优化[J].东南大学学报(自然科学版),2014,44(3):621-625.[doi:10.3969/j.issn.1001-0505.2014.03.030]
 Yuan Jie,Xu Zhaodong,Chen Xi.Analysis and optimization of hybrid isolation system for precision platform[J].Journal of Southeast University (Natural Science Edition),2014,44(3):621-625.[doi:10.3969/j.issn.1001-0505.2014.03.030]
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精密平台混合隔减振系统的分析及优化()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
44
期数:
2014年第3期
页码:
621-625
栏目:
数学、物理学、力学
出版日期:
2014-05-16

文章信息/Info

Title:
Analysis and optimization of hybrid isolation system for precision platform
作者:
袁杰1徐赵东1陈曦2
1东南大学混凝土及预应力混凝土结构教育部重点实验室, 南京 210096; 2同济大学建筑设计研究院(集团)有限公司, 上海 200092
Author(s):
Yuan Jie1 Xu Zhaodong1 Chen Xi2
1Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210096, China
2Tongji Architectural Design(Group)Co., Ltd., Tongji University, Shanghai 200092, China
关键词:
宽频 精密平台 磁流变阻尼器 混合控制 遗传算法
Keywords:
broadband high-precision motion platform magnetorheological damper(MRD) hybrid control genetic algorithm
分类号:
TB534.2
DOI:
10.3969/j.issn.1001-0505.2014.03.030
摘要:
为了改善精密平台的工作性能,减小台体在宽频环境激励作用下的动力响应,设计了一种基于磁流变阻尼器的混合隔减振系统.首先建立了该隔减振系统的7自由度动力学仿真模型,动力学分析结果表明,该隔减振系统可以在较宽的频域范围控制台体的动力响应.然后,在分析隔减振系统各参数对隔减振效果的灵敏度基础上,采用遗传算法优化其中灵敏度较大的参数,使得该隔减振系统可以达到既定的控制指标.优化分析结果表明,优化后的混合隔减振系统不仅将台体的位移响应控制在限制条件范围内,还能有效减小台体的加速度响应.当频域大于50 Hz时,台体加速度响应控制效果明显;当频率小于50 Hz时,控制效果稍差.
Abstract:
A hybrid isolation system based on the magnetorheological damper(MRD)is proposed to improve the performance of the precision platform and reduce the dynamic response under broadband environment excitation. First, the simulation model of 7 degrees of freedom for this system is adopted. The results of dynamic analysis show that the isolation system can control the dynamic response of the platform in a wide range of frequency domain. After analyzing the sensitivities of the system parameters on the effect of vibration isolation, the genetic algorithm is adopted to optimize the sensitive system parameters to achieve the expected goal. The results show that the optimized hybrid isolation system can not only control the displacement response within the corresponding restrictions, but also reduce the acceleration response of the platform effectively. When the frequency is more than 50 Hz, the control effect of the acceleration response is obvious; otherwise, the control is less effective.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2013-09-21.
作者简介: 袁杰(1989—),男,硕士生;徐赵东(联系人),男,博士,教授,博士生导师,zhdxu@yahoo.com.cn.
引用本文: 袁杰,徐赵东,陈曦.精密平台混合隔减振系统的分析及优化[J].东南大学学报:自然科学版,2014,44(3):621-625. [doi:10.3969/j.issn.1001-0505.2014.03.030]
更新日期/Last Update: 2014-05-20