与安装前置铲斗的标准拖拉机不同，许多大型装载机不使用汽车转向机构。
Unlike standard tractors fitted with a front bucket, many large loaders do not use automotive steering mechanisms.
最常用的汽车转向机构是平面四杆机构，其结构相对简单，而且已经有大量深入的研究。
The most common steering mechanism for vehicles is plane four-bar linkage, which has a simple structure and has been studied in details.
针对这一应用要求，根据汽车转向机构的受力分析得到的转向力矩，对影响汽车转向力矩的主要因素进行了分析，并具体对与向心加速度有关的部分转向力矩的实验曲线用最小二乘法进行了解析式拟合。
Aiming at this practical request, the factors of effect on automotive steering torque are analyzed according to the steering torque that is got from the stress analyzing of the steering gear.
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