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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part D. Journal of Automobile Engineering >A condensed dynamic model of a heavy-duty truck for optimization of the powertrain mounting system considering the chassis frame flexibility
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A condensed dynamic model of a heavy-duty truck for optimization of the powertrain mounting system considering the chassis frame flexibility

机译：考虑底盘框架灵活性的动力总成安装系统优化的重型卡车的冷凝动力学模型

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摘要

The existing powertrain mounting models of the heavy-duty truck for optimizing the mounts parameters cannot well describe the deformation of the chassis frame. To overcome this disadvantage, a new full vehicle model is proposed which embraces the view of system modeling and includes the frame flexibility. The model can achieve optimal parameters of the Powertrain Mounting System for isolating the vibration transmitted from the powertrain to the chassis. A model reduction technique, improved reduced system, is used to obtain a reduced model of the frame to represent its original large-scale finite element analysis model for the accessibility of time-efficient solutions of the model. The reduced frame model is integrated with the powertrain mounting and suspension model to form the full dynamic model of the vehicle. The accuracy and effectiveness of the proposed model are evaluated by its original vehicle model built in software ADAMS and an existing rigid model with rigid foundation. A hybrid model optimization strategy is also presented to tune the dynamic parameters of the powertrain mounts using the developed coupling model. The simulation results show that the proposed coupling model has better representation of the dynamic characteristics of the real vehicle system, and the presented hybrid model optimization strategy can obtain better optimization results compared with the existing rigid model with rigid foundation. In addition, the application of the proposed model can also be extended to the vibration control and the structural fatigue prediction.
机译：用于优化安装架参数的重型卡车的现有动力总成型号不能很好地描述底盘框架的变形。为了克服这个缺点，提出了一种新的全车型模型，其包括系统建模的视图，并包括框架灵活性。该模型可以实现动力总成安装系统的最佳参数，用于将从动力系传递到底盘的振动。一种模型减少技术，改进的减少系统，用于获得帧的减少模型，以表示其原始大规模有限元分析模型，可用于模型的时间效率解决方案的可访问性。减小的框架模型与动力系安装和悬架模型集成，以形成车辆的全动态模型。所提出的模型的准确性和有效性由其原始车辆模型内置于软件ADAMS和具有刚性基础的现有刚性模型。还提出了一种混合模型优化策略来使用开发的耦合模型调谐动力系安装件的动态参数。仿真结果表明，该耦合模型具有更好地表示现实车辆系统的动态特性，而呈现的混合模型优化策略可以获得更好的优化结果，与刚性基础的现有刚性模型相比。此外，所提出的模型的应用还可以扩展到振动控制和结构疲劳预测。

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