整星阻尼减振方案及试验结果分析  

Whole Satellite Vibration Attenuation with Damping Investigation into Experiment Phenomenon

作　　者：梁鲁[1] 申智春[1] 齐晓军[2] 满孝颖[2] 郑钢铁[3] 

机构地区：[1]哈尔滨工业大学航天学院,黑龙江哈尔滨150001 [2]上海卫星工程研究所,上海200240 [3]清华大学航天航空学院,北京100084

出　　处：《上海航天》2008年第4期39-45,共7页Aerospace Shanghai

摘　　要：为改善整星振动环境,研究了在星箭转接锥附加约束阻尼层(CLD)提高整星阻尼的可行性。用有限元方法计算和优选约束阻尼层减振方案,并根据结构特点,综合考虑阻尼增量和附加质量,获得了合理的约束阻尼减振方案。在结构星上进行了振动试验以验证方案的整星减振效果。分析和试验结果表明:此约束阻尼层减振方案有一定的减振效果,可靠性高,且不改变卫星原技术状态。另发现,采用的试验方法和结构星本身因素可能影响整星阻尼减振的减振效果评价。The feasibility of constrained damping layer(CLD) applied to the payload attachment fitting(PAF) to improve the dynamic environment that a satellite was subjected to during launch was studied in this paper.The finite element analysis with the modal strain energy method was used for selecting and optimizing the design parameters.According to the structure characteristics,the rational design of the CLD by considering the mass and damping ratio increment of the whole satellite was given out.A preferred design ...

关 键 词：整星阻尼减振 星箭转接锥 约束阻尼层 结构减振 优选 

分 类 号：V414[航空宇航科学与技术—航空宇航推进理论与工程]