据了解某公司的某款汽车转向横拉杆在使用过程中多次发生断裂。通过对转向横拉杆进行受力分析、CATIA有限元分析探寻转向横拉杆的失效原因。结果表明：造成转向横拉杆失效的主要原因是拉杆在汽车长时间行驶在极端路面下受到异常冲击力而发生弯曲从而使弯曲部分的受力状态发生改变导致转向横拉杆发生疲劳断裂。将上文翻译成英文

It has been found that the steering tie rod of a certain model of car from a company has experienced multiple fractures during use. A force analysis and CATIA finite element analysis were conducted to explore the cause of failure of the steering tie rod. The results showed that the main cause of failure was the bending of the rod due to abnormal impact forces experienced during extended use of the car on extreme road surfaces. This change in the stress state of the bent section led to fatigue fracture of the steering tie rod