复合转向机构优化设计与特性分析

阐述了一种摆动式复合转向机构,利用Denavit-Hatenberg齐次变换矩阵建立了该转向机构的运动学模型,提出了确定复合式转向机构关键铰点位置的多目标优化设计方法,结合工程实例,对转向机构进行了优化设计,用ADAMS软件对计算结果进行了验证,对转向机构的转向油缸驱动的非对称特性,转向机构的平顺性、侧滑特性和对称特性进行了分析。结果表明,提出的优化计算方法具有简单、可靠的特点,该转向机构具有转弯半径小、侧滑小和易控制等特点。

Optimization Design and Characteristics Analysis for Combined Steering Mechanism

An oscillating combined steering mechanism was introduced.With Denavit-Hatenberg homogeneous transformed matrix,the kinematics model of the steering mechanism was constructed.The multi-objective optimization method for designing the location of key hinge was proposed.The engineering illustration of steering mechanism was calculated,and the result was proved by the ADAMS software.Some characteristics of steering mechanism,such as the asymmetry of steering drive oil cylinder control,steering smoothness,skidding behavior,and symmetrical distribution were analyzed.The proposed method was reliable and simple,and had important practical value for engineering applications.The steering mechanism had some merits,such as small turn radius,little side slide,easily controllable,it will have wide applied range in engineering vehicle.