| 传统星-箭连接PAF的改进及其减振性能 |
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| 引用本文： | 刘明辉,刘丽坤,郑钢铁.传统星-箭连接PAF的改进及其减振性能[J].上海航天,2007,24(2):37-41,56. |
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| 作者姓名： | 刘明辉 刘丽坤 郑钢铁 |
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| 作者单位： | 1. 哈尔滨工业大学,航天学院,黑龙江,哈尔滨,150001
2. 清华大学,航天航空学院,北京,100084 |
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| 摘 要： | 为实现发射段卫星的整星减振,提出了一种改进传统星-箭连接适配器(PAF)以增大其阻尼的方法。根据建立的PAF-卫星系统纵向振动简化模型,分析了改进型PAF阻尼比、质量比和频率比对振动传递率的影响。有限元仿真结果表明,该改进方法可获得较好的整星减振性能,且方法简单,易于工程实现。
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| 关 键 词： | 整星减振 连接适配器 阻尼减振 阻尼比 质量比 频率比 振动传递率 |
| 文章编号： | 1006-1630（2007）02-0037-05 |
| 修稿时间： | 2006-05-102006-06-13 |
Study on Improvement of the Conventional PAF for Vibration Attenuation |
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| LIU Ming-hui,LIU Li-kun,ZHENG Gang-tie.Study on Improvement of the Conventional PAF for Vibration Attenuation[J].Aerospace Shanghai,2007,24(2):37-41,56. |
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| Authors: | LIU Ming-hui LIU Li-kun ZHENG Gang-tie |
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| Institution: | 1. College of Astronautics Engineering, Harbin Insitute of Technology, Harbin Heilongjiang 150001, China; 2. College of Aeronautics and Astronautics, Tsinghua University, Beijing 100084, China |
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| Abstract: | To implement the whole-spacecraft vibration attenuation during the launch period,a practical improvement on the conventional payload attach fitting(PAF) was put forward to increase its damping in this paper.According to the simplified model founded which was used to characterize the longitudinal vibration of the PAF-satellite structure,the effect of the damping ratio,mass ratio and frequency ratio for the improved PAF was analyzed.The simulation results of the finite element model showed that this improved PAF would realize much better performance on the whole-spacecraft vibration attenuation.The method was simple and easy to put into practice in engineering. |
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| Keywords: | Whole-spacecraft vibration attenuation Payload attach fitting Vibration damping Damping ratio Mass ratio Frequency ratio Vibration transmissibility |
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