摘要
该文首先利用形状系数法、能量计算法和变截面参数加权法得到变截面油缸失稳时的最大临界应力,然后利用CAE有限元分析软件建立了变幅油缸的三维数学模型,并设置相应的求解参数。通过理论计算结果和分析结果的对比,得到可适用于工程实践的计算公式,对今后油缸的设计和稳定性校核有很好的指导意义。
This paper firstly uses the shape coefficient method, energy calculation method and variable cross-section parameter weighting method so as to obtain maximum critical stress when the cylinder becomes instability. And then the CAE finite element analysis software is used to establish the three-dimensional mathematical model of luffing cylinder, meanwhile related solving parameters are also set. The calculation formula can be obtained through the comparison of theoretical calculations and analysis results, which can put forward the good guide for future design and stability of cylinder.
出处
《液压气动与密封》
2013年第9期70-72,共3页
Hydraulics Pneumatics & Seals
关键词
变截面杆
油缸失稳
临界载荷
屈曲分析
variable cross-section rod
cylinder instability
critical load
buckling analysis
