论文部分内容阅读
为了解决宽体矿用自卸车驱动桥壳在工作路况下出现的疲劳破坏问题,通过对车辆工作路况轴头振动/轴头激励信息进行采集,并结合有限元计算方法对宽体矿用自卸车驱动桥壳应力、变形及疲劳寿命等特性进行研究,获得一种针对重载宽体矿用自卸车驱动桥壳力学特性的分析方法。分析结果表明,通过结合实测大波形轴头振动/轴头激励数据得到的本型重载宽体矿用自卸车驱动桥壳应力、变形、最小安全系数及最小寿命等均满足材料及设计规范要求,可靠性相对较高;在重载宽体矿用自卸车驱动桥壳有限元计算模型引入采集得到的大波形轴头振动/轴头激励数据,进一步提高了虚拟样机环境下分析计算与实际环境的贴合程度,为后续虚拟样机环境下驱动桥壳设计分析和改型提供一定参考。
In order to solve the problem of fatigue failure of wide-body mining truck driving axle housing under working road conditions, by collecting the vibration information of shaft head / head of working road condition and combining with the finite element method, Drive axle housing stress, deformation and fatigue life and other characteristics of research, access to a heavy-duty wide-body mining dumper driven axle housing mechanical properties of the analysis method. The analysis results show that the stress, deformation, minimum safety factor and minimum life of the axle housing driven by the heavy-duty wide-body mining dumper are obtained by combining the measured data of the vibration shaft / shaft excitation data of the large waveform shaft head to meet the requirements of materials and design specifications , And the reliability is relatively high. The vibration / shaft excitation data of the large waveform shaft head collected by the finite element calculation model of heavy-duty wide-body mining dump truck drive axle housing are further introduced to improve the analysis and calculation and the actual environment of the virtual prototype environment Of the fit degree for the follow-up virtual prototyping drive axle housing design analysis and modification provide some reference.