摘要
为有效评估温度对包带式星箭连接分离装置的预紧力的影响,基于传统包带预紧力计算方法,通过引入温度影响系数,提出了考虑温度效应的计算公式。由于包带式星箭连接边界条件的复杂性,温度影响系数难以通过理论计算准确得出,本文将有限元数值仿真方法与高低温试验相结合,拟合出小型包带装置的温度影响系数。结果表明,预紧力的计算值与实验值较为吻合,为此类结构包带预紧力的精确计算提供了参考工具,并为多种规格包带装置的温度影响系数的确定提供了有效解决方法。
A formula to calculate the pre-tightening force in the clamp band connecting/release mechanism with the temperature effect was proposed by introducing a factor into the typical equations.It was difficult to determine the temperature effect by means of theory analysis due to the complexity of boundary conditions within the connection,so series of temperature for mini-type clamp band equipments were given through combining the FEM simulations with the high/low temperatures.The results showed that these factors were suitable and effective for the pre-tightening force calculation for many kinds of clamp bands.
作者
唐杰
张修科
李新宽
韩涵
白瑞祥
TANG Jie ZHANG Xiuke LI Xinkuan HAN Han BAI Ruixiang(Shanghai Aerospace System Engineering, Shanghai 201109, China State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China)
出处
《大连工业大学学报》
CAS
北大核心
2016年第6期494-498,共5页
Journal of Dalian Polytechnic University
基金
国家重点基础研究发展计划(973计划)项目(2014CB046506)
关键词
温度效应
包带
预紧力
有限元
temperature
clamp band
pre-tightening force
simulation analysis
