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螺栓连接球柱壳结构撞击行为的数值分析

Keywords: 螺栓连接球柱壳结构,动力松弛法,撞击响应,应力波传播

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Abstract:

为对螺栓数目和预紧力大小设计提供指导,对螺栓连接球柱壳结构抗撞击性能进行数值分析.数值分析时采用动力松弛法确定螺栓连接球柱壳结构的静态初始变形和初始应力,再通过动力分析获取结构在撞击载荷下的响应.计算得到的法兰面上的接触压力历程描述存在预紧的球壳和柱壳的接触运动,这种相对运动可引起螺栓预紧力的变化.测试点的应变响应描述了应力波的传播过程,反映了弹靶接触面和法兰接触面的压力变化.结果表明了螺栓连接球柱壳结构撞击行为数值分析方法的合理性.

References

[1]  PAPADRAKAKIS M.A method for the automated evaluation of the dynamic relaxation parameters[J].Computer Methods inApplied Mechanics and Engineering,1981,25(1):35-48.
[2]  UNDERWOOD P.Dynamic relaxation in computational method for transient analysis[M].North Holland,Amsterdam:[s.l.],1983:245-263.
[3]  DAVID R O,NORMAN F K.Adaptive dynamic relaxation algorithm for non-linear hyperelastic structures,Part I.formulation[J].Computer Methods in Applied Mechanics and Engineering,1995,126:67-89.
[4]  SALEHI M,AGHHEI H.Dynamic relaxation large deflection analysis of non-axisymmetric circular viscoelastic plates[J].Computers&Structures,2005,83(23/24):1878-1890.
[5]  WHITTINGHAM B,MARSHALL I H,MITREVSKI T,et al.The response of composite structures with pre-stress subject tolow velocity impact damage[J].Composite Structures,2004,66(1/4):685-698.
[6]  KHALILI S M R,MITTAL R K,PANAH N M.Analysis of fiber reinforced composite plates subjected to transverse impact inthe presence of initial stresses[J].Composite Structures,2007,77(2):263-268.
[7]  HAN S,LEE K.A study of the stabilizing process of unstable structures by dynamic relaxation method[J].Computers&Structures,2003,81(17):1677-1688.
[8]  李士军,马大为,朱孙科.动力松弛方法中Rayleigh阻尼参数取值分析[J].计算力学学报,2010,27(1):169-172.LI Shi-jun,MA Da-wei,ZHU Sun-ke.Analysis of Rayleigh damp parameters in dynamic relaxation method[J].ChineseJournal of Computational Mechanics,2010,27(1):169-172.(in Chinese)

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