Finite Element Analysis And Optimization Of Mine Truck’s Steering Knuckle

Steering knuckle is an important component of chassis which need to bear front loadand achieve steering and connect with the front axle, steering transmission mechanism andbraking system.The article is based on the steering knuckle status and trends, using finiteelement and optimizing designation to analyze the structure, constraint and load of steeringknuckle of a huge dump truck, and then conducted strength analysis, modal analyzation andoptimization. The main work and achievements are as follows;The establishment of finite element and modal analysis. Using HyperMesh to establishgeometric model, mesh bridge model by hexahedral-SOLID element and conduct variousboundary conditions and loads applied with multipoint constraints. At the same time,themodal analysis is carried out on the steering knuckle, try to calculate and extract the vibrationcharacteristic, and analyze the steering knuckle of modal characteristics;Establish the vehicle dynamics model by using the VIEW module in the ADAMS whichinclude road tire model, steering model, and the vehicle model, etc. Then according to thethree kinds of typical driving condition and three kinds of comprehensive conditions tosimulate and calculate the actual stress distribution of steering knuckle in various conditions;Using HyperMesh conducts strength statics analysis of the steering knuckle model.According to the various driving conditions to obtain the stress nephogram and deformationand analysis steering knuckle under loaded condition and stress distribution, the resultindicates that the steering knuckle can meet strength requirements;Using HyperWork optimized design module to conduct optimizing designation of thesteering knuckle and put forward feasible suggestions.On the other hand,we also usedMSC.Fatigue to analyze the fatigue of knuckle and forecast its life.