箭体结构连接刚度影响因素研究
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摘要
火箭舱段对接面的连接刚度是影响飞行安全性的重要因素之一,同时由于运载能力的约束,箭体结构设计过程中对质量的要求较为严格。通过有限元仿真分析,对箭体结构舱段对接面连接刚度的影响因素即连接螺栓预紧力、对接件厚度、螺栓分布等进行了分析研究,得出了各因素对刚度影响的规律,为后续箭体结构对接面的设计工作提供参考。
The rocket cabin docking connection stiffness was one of the important factors that affected the flight safety. At the same time,due to capacity constraints,the rocket structure was strict with the weight. The finite element simulation analysis method was adopted herein. The influence factors of the connection stiffness were analyzed and researched.The influence factors included connecting bolt preload,the thickness and distribution of bolts.The regular patterns of the influence factors on connection stiffness were obtained.The rocket structure design may be guided by these researches.
The rocket cabin docking connection stiffness was one of the important factors that affected the flight safety. At the same time,due to capacity constraints,the rocket structure was strict with the weight. The finite element simulation analysis method was adopted herein. The influence factors of the connection stiffness were analyzed and researched.The influence factors included connecting bolt preload,the thickness and distribution of bolts.The regular patterns of the influence factors on connection stiffness were obtained.The rocket structure design may be guided by these researches.
引文
[1]吴宇新.多级火箭连接部位稳定性研究[D]:西安:西北工业大学,2003.WU Yuxin.Study on The Stability of Multistage Rocket Connected Parts[D].Xi.an:Northwestern Polytechnical University,2003.
[2]彭小平.紧螺栓连接可靠性设计方法[J].现代制造工程,2004,32(5):92-95.PENG Xiaoping.Reliability Design Method for Tight Bolted Connections[J].Modern Manufacturing Engineering,2004,32(5):92-95.
[3]邱凯,曹鲁光,郇光周,等.导弹关键舱段螺栓连接的有限元分析及预紧力研究[J].机械设计与制造,2015(2):221-224.QIU Kai,CAO Luguang,HUAN Guangzhou et al.Finite Element Analysis and Preload Study of Bolted Connection of Key Missile Cabin[J].Mechanical Design and Manufacturing,2015(2):221-224.
[4]徐超,张铎.细长式战术导弹舱段连接面刚度识别研究[J].弹箭与制导学报,2004,24(5):132-134.XU Chao,ZHANG Duo.Identification of Joint Stiffness of Slender Tactical Missile Cabins[J].Journal of Projectiles,Rockets,Missiles and Guidance,2004,24(5):132-134.
[5]GHOSH N,SAHOO P.Finite Element Contact Analysis of Fractal Surfaces[J].Journal of Physics D Applied Physics,2007,40(14):390-393.
[6]杨国庆,王飞,洪军.螺栓被连接件刚度理论的计算方法[J].西安交通大学学报,2012,46(7):50-56.YANG Guoqing,WANG Fei,HONG Jun.Calculation Method for Stiffness of Bolted Connections[J].Journal of Xi.an Jiao Tong University,2012,46(7):50-56.
[7]杨国庆,王飞,洪军.螺栓被连接件轴向刚度高精度计算的半解析方法[J].西安交通大学学报,2012,46(9):37-42.YANG Guoqing,WANG Fei,HONG Jun.Semi Analytical Method for Calculating the Axial Stiffness of Bolted Connections.[J].Journal of Xi.an Jiao Tong University,2012,46(9):37-42.
[2]彭小平.紧螺栓连接可靠性设计方法[J].现代制造工程,2004,32(5):92-95.PENG Xiaoping.Reliability Design Method for Tight Bolted Connections[J].Modern Manufacturing Engineering,2004,32(5):92-95.
[3]邱凯,曹鲁光,郇光周,等.导弹关键舱段螺栓连接的有限元分析及预紧力研究[J].机械设计与制造,2015(2):221-224.QIU Kai,CAO Luguang,HUAN Guangzhou et al.Finite Element Analysis and Preload Study of Bolted Connection of Key Missile Cabin[J].Mechanical Design and Manufacturing,2015(2):221-224.
[4]徐超,张铎.细长式战术导弹舱段连接面刚度识别研究[J].弹箭与制导学报,2004,24(5):132-134.XU Chao,ZHANG Duo.Identification of Joint Stiffness of Slender Tactical Missile Cabins[J].Journal of Projectiles,Rockets,Missiles and Guidance,2004,24(5):132-134.
[5]GHOSH N,SAHOO P.Finite Element Contact Analysis of Fractal Surfaces[J].Journal of Physics D Applied Physics,2007,40(14):390-393.
[6]杨国庆,王飞,洪军.螺栓被连接件刚度理论的计算方法[J].西安交通大学学报,2012,46(7):50-56.YANG Guoqing,WANG Fei,HONG Jun.Calculation Method for Stiffness of Bolted Connections[J].Journal of Xi.an Jiao Tong University,2012,46(7):50-56.
[7]杨国庆,王飞,洪军.螺栓被连接件轴向刚度高精度计算的半解析方法[J].西安交通大学学报,2012,46(9):37-42.YANG Guoqing,WANG Fei,HONG Jun.Semi Analytical Method for Calculating the Axial Stiffness of Bolted Connections.[J].Journal of Xi.an Jiao Tong University,2012,46(9):37-42.