基于MSC.Fatigue的链条疲劳寿命分析与优化

Analysis and Optimization of Chain Fatigue Life Based on MSC.Fatigue

针对链条疲劳寿命可靠性设计求解复杂、试验周期长、试验成本高等问题,在ABAQUS有限元分析的基础上,提出了一种基于MSC.Fatigue的链条疲劳寿命分析方法,能够快速确定链条的最小疲劳寿命及其分布,找出链条设计薄弱环节。同时提出了一种优化设计方案,并且对优化方案分别进行了MSC.Fatigue疲劳寿命分析和疲劳试验验证。疲劳寿命结果不仅满足了疲劳设计要求,而且更进一步验证了仿真分析与实际试验验证结果的一致性和有效性,为后续链系统的可靠性设计提供了依据。

Aiming at the problems of complex design and solution of chain fatigue life reliability,long test period and high test cost,on the basis of ABAQUS finite element analysis,a chain fatigue life analysis method based on MSC.Fatigue is proposed,which can quickly determine the chain minimum fatigue life and its distribution to identify weak links in chain design.At the same time,an optimization design scheme is proposed,and the MSC.Fatigue fatigue life analysis and fatigue test verification are carried out for the optimization scheme.The fatigue life results not only meet the fatigue design requirements,but also further verify the consistency and validity of the simulation analysis and the actual test verification results,providing a basis for the reliability design of the subsequent chain system.