关键词: 矿用自卸车, 转向机构, 多目标优化, 正交试验

Abstract:

In response to the defects of traditional design method of steering mechanism,multi-objective parameter optimization was conducted based on orthogonal test.The dynamics simulation model of a 220 ton mining bump truck was established and simulated with ADAMS,in which the sideslip under straight driven,wheel steer angle error under steering and the wheel angle under bouncing were taken into account.
A comprehensive objective function was accomplished based on the multi-objective optimization theory, and the influence of front wheel alignment parameters and the space location of steering mechanism were analyzed using orthogonal test.The optimization results show that:the comprehensive performance of steering mechanism can be improved significantly,which provides theoretical foundation for the optimization design of mining dump truck steering mechanism.

Key words: mining dump truck, steering mechanism, multi-objective optimization, orthogonal test