铰接履带式运输车转向俯仰装置强度刚度分析

Strength and stiffness analysis of articulated steering and pitching device on the all-terrain articulated tracked carrier

由于转向俯仰装置是某铰接履带式运输车前车和后车的中间连接部分,对实现车架水平、垂直及扭转平面内的运动有重要作用,且该装置结构复杂,利用理论公式计算法不能满足对其整体结构进行分析的要求,故基于有限元理论,利用ANSYS软件对它的强度刚度进行有限元计算,分析该装置各部分在载重工作时抵抗断裂破坏和变形的能力,从而对该装置的设计合理性进行验证。选取该车载重工作时比较典型和危险的15种工况,对每种工况选择不同的约束加载,同时模型的建模也采取一些特殊的处理方法,以模拟真实的受力状态。分析结果表明:转向俯仰装置的设计基本合理,但也存在不合理区域,针对不合理区域提出了改善方案;改善后制造的样车经过试验场运行试验后表明该装置的分析方法是正确的,提出的改善方案是合理的。

As articulated steering and pitching device is the middle part which connects the front and rear truck of all-terrain articulated tracked carrier, which plays an important part in realizing the movements on the horizontal, vertical and torsional plane, also the structure of articulated steering and pitching device is very complex, and the theoretical formula calculation can not meet the requirements of overall structure analysis, so based on finite element theory, ANSYS soft- ware was used to make finite element analysis of the strength, stiffness and the capability of re- sistance to deformation and fracture in all parts of the articulated steering and pitching device to verify whether the design of the device is reasonable. Fifteen kinds of working conditions were se- lected as typical and dangerous ones used for analysis, and for each working condition different constraints and loads were chosen, also some special processing methods for model were taken, so as to simulate the real load working state. The results show that the design of the device is reasonable on the whole, but not perfect, and for some problems the device is redesigned with some improvement~ the sample of all-terrain articulated improved, and its running posed improvement for the through the test ground shows t device is reasonable. 1 tab, 13 fi tracked carrier is manufactured after being hat the analysis method is correct and pro- gs, 9 refs.