摩托车车架瞬态强度分析与改进设计

Transient Intensity Analysis and Design of Improvement for Motorcycle Frame

针对摩托车车架结构复杂,并且在摩托车工作过程中受到路面激励力作用的特点,在考虑整车各零部件相互作用的前提下,建立了较详细的摩托车整车瞬态强度分析有限元模型,模拟了摩托车整车在实际工作过程中的动态强度变化历程.研究表明:根据瞬态分析结果再结合车架的结构特征及应力分布情况,能更准确、深入地揭示摩托车在实际工作过程中车架动态强度随时间的变化关系,为摩托车车架动态结构强度设计提供可靠依据.

Facing the complicacies of motorcycle frame and the fact that the motorcycle frame is subjected to ground dynamic loads, considering the interaction between all parts of the motorcycle,, the paper takes all these factors into account and builds a detail transient intensity explicit finite element analysis model, to simulate the motorcycle frame＇ s dynamic intensity time variation during the motorcycle working. The studies indicate ： according to the result of transient analysis, the paper joins the characteristic of the motorcycle frame and stress distribution status, can make the transient intensity analysis more accurate and offer some reliable suggestions for dynamic intensity design of motorcycle frame.