商用车驾驶室疲劳载荷分解与验证

Wei Li, Junhong Dong, Qiangqiang Dong
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引用次数: 0

摘要

驾驶室疲劳耐久性性能的开发是货车设计和制造的重要内容,但驾驶室的疲劳载荷很难通过试验得到。在开发前期获取驾驶室疲劳载荷并进行驾驶室疲劳仿真,将改善和促进驾驶室疲劳耐久性性能。针对上述问题,提出了一种获取驾驶室疲劳载荷的方法。首先采集驾驶室悬架加速度,然后建立421驾驶模式下驾驶室刚柔耦合多体动力学模型,通过Femfatlab虚拟迭代提取驾驶室疲劳载荷,最后通过虚拟应变与实测应变的对比验证疲劳载荷的准确性和方法的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Commercial Vehicle Cab Fatigue Load Decomposition and Validation
Development of cab fatigue durability performance is very important in the design and manufacture of trucks, but the cab fatigue load is difficult to get by the test. Obtaining the cab fatigue load and making simulation of the cab fatigue in the pre-development period will improve and promote the performance of cab fatigue durability. Aiming at the above problems, a method to obtain the cab fatigue load is proposed. The acceleration of the cab suspension is collected first, then the rigid and flexible coupling multi-body dynamics model of cab by 421 driving mode is established, and the cab fatigue load is extracted by virtual iteration of Femfatlab, and finally it verifies the accuracy of the fatigue load and the effectiveness of the method by comparing the virtual strain with the measured strain.
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