Designing Vibration Response Performance of Suspension of Light Rail Vehicle with Two-terminal Mass
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摘要: 悬架是影响轻轨车辆行驶安全性和乘坐舒适性的重要组成部件。通过对传统轻轨车辆悬架进行分析,给出了以乘坐舒适性(车身垂直振动加速度)为目标函数的轻轨车辆悬架的振动响应性能指标。为了进一步提升悬架的振动响应性能,提出一种集成新型双端质量元件的轻轨车辆悬架结构。建立这种新型悬架的力学模型,采用状态空间模型方法,对新型轻轨悬架参数进行优化设计。结果表明,在最优参数条件下,应用双端质量的新型悬架在算例中其性能比传统轻轨车辆悬架提升了0.696%~1.942%。Abstract: For a light rail vehicle,a suspension is a vital subsystem that influences its drive safety and ride comfort. By analyzing the structure of a conventional light rail vehicle,its ride comfort index( i. e.,vehicle vertical acceleration) is employed as a target function for evaluating the vibration response performance of the suspension.To further improve the vibration response performance,the novel suspension of a light rail vehicle with a twoterminal mass is suggested. A mechanical model is established to represent the novel suspension. The state-space model approach is proposed to design the parameters of the light rail vehicle. The results show that,with the optimal design,the vibration response performance of the novel suspension of the light rail vehicle improves 0. 696% ~1. 942% over that of the conventional one.
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Key words:
- acceleration /
- design /
- mathematical models /
- optimization /
- vibrations (mechanical)
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