SDD_8型机车轴箱弹簧断裂分析及改进

Analysis and Improvement of SDD_8 Locomotive Primary Spring Breakage

分析SDD_8型机车转向架轴箱弹簧发生早期疲劳断裂的现象,指出弹簧断裂的原因是弹簧制造质量和设计余量不足,提出弹簧设计应辅助以有限元方法进行校核,并给出了弹簧改进的方案。

The paper analyses the primary spring breakage of SDD_8 type locomotive,and points out that the spring breakage reasons are quality of spring production and lack of design margin.The author gives an improved solution,points out that FEA method should be taken for granted in spring design.