预紧力变化对包带装置轴向连接刚度影响机理分析
2025,47(1):113-125
于宝石
国防科技大学 空天科学学院， 湖南 长沙 410073 ;
空天任务智能规划与仿真湖南省重点实验室， 湖南 长沙 410073
雷勇军
国防科技大学 空天科学学院， 湖南 长沙 410073 ;
空天任务智能规划与仿真湖南省重点实验室， 湖南 长沙 410073
江涛
上海宇航系统工程研究所， 上海 201109
李昊
上海宇航系统工程研究所， 上海 201109
张大鹏
国防科技大学 空天科学学院， 湖南 长沙 410073 ;
空天任务智能规划与仿真湖南省重点实验室， 湖南 长沙 410073
国防科技大学 空天科学学院， 湖南 长沙 410073 ;
空天任务智能规划与仿真湖南省重点实验室， 湖南 长沙 410073
雷勇军
国防科技大学 空天科学学院， 湖南 长沙 410073 ;
空天任务智能规划与仿真湖南省重点实验室， 湖南 长沙 410073
江涛
上海宇航系统工程研究所， 上海 201109
李昊
上海宇航系统工程研究所， 上海 201109
张大鹏
国防科技大学 空天科学学院， 湖南 长沙 410073 ;
空天任务智能规划与仿真湖南省重点实验室， 湖南 长沙 410073
摘要：
为精准计算包带装置的非线性承载能力，通过包带装置各组件间力学行为的分析，提出了一种考虑预紧力变化的装置轴向连接刚度计算方法；建立了考虑结构非线性的精细化有限元模型，并通过拉伸试验验证了有限元模型的准确性。结合有限元模型修正了装置连接刚度的理论计算，基于所建的有限元与理论模型，揭示了包带预紧力分布、变化及初始预紧载荷对装置强度及连接刚度的影响机理。结果表明：刚度计算理论模型可以准确计算装置的轴向连接刚度并预测连接失效载荷，具有重要的工程应用价值。
为精准计算包带装置的非线性承载能力，通过包带装置各组件间力学行为的分析，提出了一种考虑预紧力变化的装置轴向连接刚度计算方法；建立了考虑结构非线性的精细化有限元模型，并通过拉伸试验验证了有限元模型的准确性。结合有限元模型修正了装置连接刚度的理论计算，基于所建的有限元与理论模型，揭示了包带预紧力分布、变化及初始预紧载荷对装置强度及连接刚度的影响机理。结果表明：刚度计算理论模型可以准确计算装置的轴向连接刚度并预测连接失效载荷，具有重要的工程应用价值。
基金项目：
国家自然科学基金资助项目(11902348)； 湖南省自然科学基金资助项目(2020JJ5650)；国防科技大学科研计划资助项目(ZK20-27)
国家自然科学基金资助项目(11902348)； 湖南省自然科学基金资助项目(2020JJ5650)；国防科技大学科研计划资助项目(ZK20-27)
Analysis of the influence mechanism of preload variation on axial connection stiffness of clamp band joint
YU Baoshi
College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073 , China ;
Hunan Key Laboratory of Intelligent Planning and Simulation for Aerospace Missions, Changsha 410073 , China
LEI Yongjun
College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073 , China ;
Hunan Key Laboratory of Intelligent Planning and Simulation for Aerospace Missions, Changsha 410073 , China
JIANG Tao
Shanghai Institute of Aerospace Systems Engineering, Shanghai 201109 , China
LI Hao
Shanghai Institute of Aerospace Systems Engineering, Shanghai 201109 , China
ZHANG Dapeng
College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073 , China ;
Hunan Key Laboratory of Intelligent Planning and Simulation for Aerospace Missions, Changsha 410073 , China
College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073 , China ;
Hunan Key Laboratory of Intelligent Planning and Simulation for Aerospace Missions, Changsha 410073 , China
LEI Yongjun
College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073 , China ;
Hunan Key Laboratory of Intelligent Planning and Simulation for Aerospace Missions, Changsha 410073 , China
JIANG Tao
Shanghai Institute of Aerospace Systems Engineering, Shanghai 201109 , China
LI Hao
Shanghai Institute of Aerospace Systems Engineering, Shanghai 201109 , China
ZHANG Dapeng
College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073 , China ;
Hunan Key Laboratory of Intelligent Planning and Simulation for Aerospace Missions, Changsha 410073 , China
Abstract：
To accurately calculate the nonlinear bearing capacity of the CBJ(clamp band joint), through the mechanics behavior analysis of each component in the CBJ, a method for calculating the axial connection stiffness of the CBJ considering the change of preload was proposed. A fine finite element model was established considering the nonlinearity of the structure, and the accuracy of the finite element model was verified by axial tensile stiffness experiment. Combined with the finite element model, the theoretical calculation of the device connection stiffness was modified. Based on the established finite element and computational theoretical model, the influence mechanism of the distribution and variation of the belt tension and the initial belt preload on the device strength and connection stiffness was revealed. The results show that the stiffness calculation model can accurately calculate the axial connection stiffness of the device and predict the failure load of the connection, which has important engineering application value.
To accurately calculate the nonlinear bearing capacity of the CBJ(clamp band joint), through the mechanics behavior analysis of each component in the CBJ, a method for calculating the axial connection stiffness of the CBJ considering the change of preload was proposed. A fine finite element model was established considering the nonlinearity of the structure, and the accuracy of the finite element model was verified by axial tensile stiffness experiment. Combined with the finite element model, the theoretical calculation of the device connection stiffness was modified. Based on the established finite element and computational theoretical model, the influence mechanism of the distribution and variation of the belt tension and the initial belt preload on the device strength and connection stiffness was revealed. The results show that the stiffness calculation model can accurately calculate the axial connection stiffness of the device and predict the failure load of the connection, which has important engineering application value.
收稿日期：
2022-09-15
2022-09-15
