摘要
根据少片变截面钢板弹簧每一片在自由状态下的几何尺寸,利用UG软件建立各片的三维模型并进行装配。在HyperMesh中采用映射法进行单元划分,同时考虑片间的非线性接触,建立钢板弹簧总成的有限元模型。根据钢板弹簧试验工况,计算得到该工况下的应力循环,利用其S-N曲线,基于Miner线性累计损伤准则计算其疲劳寿命。疲劳寿命的计算值与试验值相当接近,验证了模型的建立以及计算过程的正确性。
According to the dimension of each leaf under free situation, with UG the models were created and assembled. Making use of the solid model, the FEM model of the taper leaf spring could be constructed by mapped mesh. The friction between leaves was simulated based on contact theory by adding contact elements to the contact surface of each leaf spring, and setting all kinds of relevant parameters, and then the fatigue life of taper leaf spring was calculated. Through comparing the differences between simulation result and test result, the error is very small which strongly proves that the fatigue life analysis for taper leaf spring based on contact friction is credible.
出处
《装备制造技术》
2008年第10期27-29,共3页
Equipment Manufacturing Technology
