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目前对整车碰撞安全性研究较多,但对单个转向机构的安全性关注较少。该文对某转向机构进行了仿真分析,进行了模型静态试验验证。参照GB11557-1998修正了作者所在课题组早期建立的人体模块并标定验证,完成了人体模块冲击方向盘的动态仿真分析,评估出方向盘的安全性。以人体模块碰撞过程中的反向加速度作为评价指标分析了不同外部工况对人体模块响应的影响。结果表明:随着人体模块速度的增加和竖直方向位置的增高,人体模块加速度明显增大,所设状态下最大影响率分别达到约56%和40%,方向盘安装角度和人体模块侧偏角度也有不同程度和不同规律的影响。
At present, there are many researches on the safety of vehicle collision, but less attention is paid to the safety of single steering mechanism. In this paper, a steering mechanism is simulated and the model static test is carried out. With reference to GB11557-1998, the human body module set up by the author’s group was calibrated and calibrated. The dynamic simulation of the impact of the human body module was completed, and the safety of the steering wheel was evaluated. The impact of different external conditions on the response of the human body module was analyzed using the inverse acceleration during the impact of the human body module as the evaluation index. The results show that with the increase of the velocity of the human module and the increase of the vertical position, the acceleration of the human module increases obviously. The maximum influence rate of the module reaches about 56% and 40% respectively. The steering wheel mounting angle and the angle of the human module There are different degrees and different laws.