串联弹簧质量系统冲击动态应变分析  

Analysis of the Impact Dynamic Strains of Mass System of Series Connected Springs

作　　者：杨智春[1] 惠晓明[1] 刘红军[1] 

机构地区：[1]西北工业大学

出　　处：《机械科学与技术》1998年第3期419-421,共3页Mechanical Science and Technology for Aerospace Engineering

摘　　要：采用螺旋弹簧一维等效弹性柱杆的波动模型，研究了一类串联弹簧质量系统的冲击动态应变。分析结果表明，考虑弹簧冲击压缩效应与否，对弹簧固定端动态应变历程有很大影响。此外，中间联接质量的大小对串联弹簧固定端的动态应变幅值及应变循环次数也有较大影响，从而影响其疲劳寿命。The wave propagation model of one dimensional elastic rod is adopted to investigate the dynamic strains of impacted helical springs, such as cannon bolt resetting springs, which are series connected by a middle mass. Numcrical calculations show that the impact compression effect of spring is important for dynamic strain of the fixed end. The existence of middle mass will increase magnitude and cycling of the dynamic strains of the springs.

关 键 词：串联弹簧 冲击 动态应变 压缩效应 螺旋弹簧 

分 类 号：TH135[机械工程—机械制造及自动化]