Finite Element Analysis For Rear Axle Strength Of Mining Dump Truck

Rear axle for mining dump truck is the end of power train. Its basic function is that transfer the torque output by engine finally to driving wheel as bearing load, and so can realize the purpose of vehicles running. As the rear axle housing of drive parts assemble base will bear many load function during vehicle running, its performance affects the safety and reliability of mining dump dump directly and is the very important safe and functional parts in vehicles. Because the shape of drive rear axle housing is complex, so it's hard to analyze strength exactly using the classical mechanics. In the past, we usually take predigesting and experiential measure, but absolutely this kind of analysis and count is cursory very much. This article did detail research on the strength and stiffness of 3303B mining dump dump using finite elements method. This article completed the following work on the basis of referring to the relative domestic and overseas literatures comprehensively: 1. Simply introduced the foundation theory and solving problems process of finite elements method, and introduced the function characteristic and manual of large-scale general finite elements ANSYS software which is composed of structure, liquid, electric field, magnetic field, sound field analysis; 2. Form rear axle three-dimensional full-scale model according to rear axle drawings, rear axle assembly drawings, front axle assembly drawings, steering gear assemble drawings and swatches basing on Pro / E. On this model to divide finite elements netting; 3. According to the mining dump truck's characteristic, form the boundary of rear axle finite elements analysis. Conditions include: A-shape bracket constraint, oil gas spring constraint, rigid displacement constraint, constraint of side slip and side turning over work condition and load's simulation and infliction, etc; 4. At the connection between axle housing and half shaft sleeving, besides through weld seam joint, there still have a section of shrink conjunction joint. In order to make sure the effect that the prestress from shrink conjunction affects on axle housing, this analysis formed a equivalent model, simulated half shaft sleeving and rear axle housing's assembly. And discussed the rule of shrink conjunction prestress; 5. Formed three kinds of finite elements models, including rear axle's original model, reinforcement model and strength model. And did stress analysis and compare on all joints for seven kinds of work conditions including full load rest work conditions, starting work conditions, braking working conditions, side slip work conditions, side turning over...