| 陈军,申娟,唐春蓬,赵赢,张旭,徐文雅.重型商用车转向节臂疲劳试验研究[J].汽车零部件,2015,9(3):24-28 |
| 重型商用车转向节臂疲劳试验研究 |
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| DOI： |
| 中文关键词: 转向节臂 标定 疲劳试验 载荷谱 |
| 英文关键词: Steering knuckle arm Calibration Fatigue test Load spectrum |
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| 中文摘要: |
| 转向节臂是重型商用车转向节的关键零部件，其疲劳性能直接影响整车的可靠性和安全性。对转向节臂疲劳试验输入载荷谱的确定和台架试验进行了研究。通过标定转向直拉杆和采集典型转向工况实车载荷谱确定了转向节臂疲劳试验的输入载荷。根据采集到的载荷谱和疲劳累积损伤等效原则制定了转向节臂疲劳试验输入载荷谱，并据此进行了转向节臂的疲劳性能验证试验。疲劳试验有效验证了转向节臂的疲劳性能，找出了可能出现失效的部位，为转向节臂的改进提供了依据。最后对改进过的转向节臂进行了疲劳性能的台架试验验证。 |
| 英文摘要: |
| Steering knuckle arm is a key part of a heavy commercial vehicle steering knuckle. Its fatigue performance directly affects the vehicle reliability and safety. The steering knuckle arm fatigue test input load confirmation and the bench test were discussed. Via steering drag link calibration and typical steering conditions tests, the fatigue test input load of the steering knuckle arm was determined. In terms of the load spectrum and the equivalence principle of accumulative fatigue damage, the steering knuckle arm fatigue test input load spectrum was formulated. According to this, the steering knuckle arm fatigue performance validation tests were carried out. The fatigue performance of steering knuckle arm was effectively verified, and the potential failure position was found. So the steering knuckle arm was improved based on this result. At last, fatigue performance of the steering knuckle arm, which had been improved, was verified via bench test. |
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