中国机械工程Issue(18)：2447-2451,5.DOI:10.3969/j.issn.1004132X.2015.18.007
包带式解锁支座的设计与试验
Design and Test of Separable Supporting Structure Based on Clamp Band
摘要
Abstract
In order to meet the requirements of complicated kinetics during the launch phase of space payload,and to realize separation between payload and satellite after in orbit,a separable clamp-band supporting structure was designed.The separation was driven by explosive bolts,and the rela-tion between axial force of the bolts and tightening torque was analyzed.The contact model of finite-element for the structure was established and then the analyses for pre-tightening force and axial load-ing were conducted respectively.The analyses show that the stress in the bands decreases gradually a-way from the tightened bolts,the larger the coefficient of friction of the contact region,the smaller with maximum stress of clamp band.Two failure modes were analyzed.The results of the vibration show RMS acceleration magnification in three directions is very small,all of the first-order modes are greater than 200 Hz,which meets the requirements of stiffness and load capacity,the device is un-locked with high reliability,and have good attenuation characteristics of impulse response.关键词
解锁支座/包带/火工品/接触分析Key words
separable supporting structure/clamp band/pyrotechnic/contact analysis分类
信息技术与安全科学引用本文复制引用
曹乃亮,杨利伟,李志来..包带式解锁支座的设计与试验[J].中国机械工程,2015,(18):2447-2451,5.基金项目
国家重点基础研究发展计划(973计划)资助项目(2011CB0132005) （973计划）
