| Application Research of Genetic Algorithm on the Whole-Spacecraft Vibration Isolation System |
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| 作者姓名： | 张军 华宏星 韦凌云 |
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| 作者单位： | State Key Lab.of Mechanical System and Vibration Shanghai Jiaotong Univ.，State Key Lab.of Mechanical System and Vibration，Shanghai Jiaotong Univ.，State Key Lab.of Mechanical System and Vibration，Shanghai Jiaotong Univ.，Shanghai 200030 China，Shanghai 200030 China，Shanghai 200030 China |
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| 基金项目： | 国家自然科学基金;国家高技术研究发展计划(863计划) |
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| 摘 要： | The objective of the whole-spacecraft vibration isolation (WSVI) system is to reduce the launch-induced dynamic loads and the quality control cost of the satellite and its components, and to increase the launch reliability by insertion of isolators between the satellite and the launch vehicle. A niche hybrid genetic algorithm (NHGA) is proposed to optimize stiffness and damping of the isolators. Through the comparison of the frequency response analysis results, it shows that the optimized WSVI system more effectively reduces spacecraft axial / lateral response due to the broadband structure-born launch environment. At the same time, the case of the whole-spacecraft vibration isolation optimization design demonstrates the efficiency and validity of the genetic algorithm.
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| 关 键 词： | 遗传算法 隔震系统 太空船 设计方案 |
| 文章编号： | 1007-1172（2007）01-0138-05 |
| 修稿时间： | 2005-10-24 |
Application Research of Genetic Algorithm on the Whole-Spacecraft Vibration Isolation System |
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| ZHANG Jun,HUA Hong-xing,WEI Ling-yun.Application Research of Genetic Algorithm on the Whole-Spacecraft Vibration Isolation System[J].Journal of Shanghai Jiaotong university,2007,12(1):138-142. |
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| Authors: | ZHANG Jun HUA Hong-xing WEI Ling-yun |
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| Institution: | State Key Lab. of Mechanical System and Vibration, Shanghai Jiaotong Univ. , Shanghai 200030, China |
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| Abstract: | The objective of the whole-spacecraft vibration isolation (WSVI) system is to reduce the launch-induced dynamic loads and the quality control cost of the satellite and its components, and to increase the launch reliability by insertion of isolators between the satellite and the launch vehicle. A niche hybrid genetic algorithm (NHGA) is proposed to optimize stiffness and damping of the isolators. Through the comparison of the frequency response analysis results, it shows that the optimized WSVI system more effectively reduces spacecraft axial / lateral response due to the broadband structure-born launch environment. At the same time, the case of the whole-spacecraft vibration isolation optimization design demonstrates the efficiency and validity of the genetic algorithm. |
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| Keywords: | the whole-spacecraft vibration isolation isolator genetic algorithm optimization design |
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