Plow traction block reliability analysis and fatigue life prediction
Abstract：Based on basic theory of rigid-flex coupled multi-body dynamics and the theory and method of fatigue life prediction,a rigid-flex coupled virtual prototyping model of coal plough was built;the problems of simulation dynamic load acquisition,the place and method of loading,interface rigidization processing of flexible traction block were solved.Through the analysis of prototype simulation,design problems of the whole coal plough were obtained.Optimized the cant angles and ear sizes of both ends of the traction block,changed the processing method from casting to forging,and then the stress characteristics could basically meet the design requirements.Strengthening extrapolating and superposition working processing was taken on the key points＇ Von Mises of dangerous fatigue damage areas,target load spectrum of fatigue analysis was obtained.Through Node fatigue life prediction,relatively accurate fatigue life of the traction block was obtained.
Keywords：coal plowtraction blockreliabilityfatigue liferigid-flex coupled
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 516-521 )