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针对矿用自卸车转向系统的转向节臂在使用过程中的多工况受载情况,建立了受载数学模型,并求取了其中的危险受载工况.考虑到各工况之间的主次关系,以模糊评判法对各工况进行权重赋值,以响应面法对各工况目标及约束函数进行响应面模型化,从而得出了转向节臂的多工况优化设计模型.应用Matlab编程求解,最终实现了转向节臂的多工况优化设计,并且通过与单工况优化的对比分析,进一步证实了多工况优化实际应用的合理性及价值.
Aiming at the multi-working condition loading condition of the steering arm of the steering system of the mining dump truck, the loaded mathematical model is established and the dangerous load condition is taken into account. Taking into account the different working conditions Primary and secondary relationship, the fuzzy evaluation method for the assignment of weights to each case, in response to surface conditions for each condition object and constraint function response surface modeling, and thus come to the steering arm multi-condition optimization design model. Matlab programming solution, and ultimately achieve the multi-condition optimization design of the knuckle boom, and through the comparison and analysis with the single-case optimization, and further confirmed the rationality and value of the multi-condition optimization practical application.