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CHUY320型强夯机在实际运用过程中,臂架起臂工况和重锤突然释放工况的载荷条件比较复杂,给强度校核与疲劳评估带来困难;为了确定其载荷条件、弹簧选择是否满足要求、各部件之间的相互作用力等,特建立动力学模型,通过数值仿真计算获得动态载荷及各部件之间相互作用力,弹簧的压缩量及受力等,为弹簧的选型,整机的疲劳寿命分析提供载荷谱及结构优化提供理论依据。
In actual use, the loading conditions of boom lifting condition and sudden releasing condition of hammer are complicated, which brings difficulties to strength checking and fatigue assessment. In order to determine the loading conditions, whether the spring selection is Meet the requirements of the interaction between the various components, especially the establishment of dynamic model, through the numerical simulation to obtain the dynamic load and the interaction between the components, the amount of compression and force the spring, for the spring selection, Fatigue life of the whole machine to provide load spectrum and structure optimization provide the theoretical basis.