轻量化铝合金推力杆结构设计及其性能研究

Structural Design and Performance Research on Lightweight Aluminum Alloy Thrust Rod

根据某车型推力杆的性能要求,设计了1种新型杆身-球头一体式轻量化铝合金推力杆。试验结果表明,该铝合金推力杆的球铰压入/压出力满足要求,可以承受200 kN的极限载荷,在±60 kN载荷下,疲劳寿命可达100万次。在完成客户路试后,推力杆未发生失效现象。相比于原来的全钢结构推力杆,在保证性能满足使用要求的前提条件下,该铝合金推力杆整体质量降低达27%。

A novel aluminum alloy thrust rod with rod body-ball head all-in-one is designed according to the performance requirements of thrust rod of a vehicle.Test results show that the ball hinge press in/press out force of the aluminum alloy thrust rod meets the requirements,can withstand a limit load of 200 kN,and has a fatigue life of up to 1 million times of cycle under the load of±60 kN.After completing the customer road test,the thrust rod does not fail.Compared with the original steel structure thrust rod,under the premise that the performance meets the requirements of use,the overall weight of the aluminum alloy thrust rod is reduced as high as 27%.