Reducing wheel-rail surface damage by incorporating hydraulic damping in the Bogie primary suspension
Reducing wheel-rail surface damage by incorporating hydraulic damping in the Bogie primary suspension
复制标题
通过在转向架主悬架中加入液压阻尼来减少轮轨表面损坏
DOI：
10.1080/00423114.2022.2092012
复制
发表时间：
2022
影响因子：
3.6
通讯作者：
Qu C
中科院分区：
文献类型：
--
作者：
Qu C
较低的车辆主偏摆刚度(Pys)可以有效地减少曲线上的轮轨表面损伤，而降低Pys则不利于乘坐舒适性和车辆稳定性。这种权衡可以通过将液压减振集成到一次悬架中来解决。然而，考虑到整个参数空间尚不清楚，这一领域的工作仅集中于比较特定装置的效果-液压减振集成一次悬架在对抗权衡方面的全部潜力。在这里，我们通过以下两个方面的贡献来解决这一问题：(1)充分挖掘液压减振一体化一次悬架的潜力，在保持平顺性的同时最大限度地减少Pys；(2)系统地研究降低Pys和悬架行程要求之间的权衡。通过对Mark 4客车的实例分析，发现在不降低舒适性的前提下，最优的液压-减振-悬架一体化悬架可以在不降低舒适性的前提下，使Pys降低97%。这一大幅削减可能会为车队节省约4200万GB的轮轨维护成本。如果允许更大的悬挂行程，可以实现更多的成本节约。这些结果提供了进行详细的工程设计研究的动力，以进一步检查财务利益和设计复杂性之间的权衡。
Wheel–rail surface damage in curves can be effectively reduced with a lower vehicle Primary Yaw Stiffness (PYS), while lowering PYS is detrimental to ride comfort and vehicle stability. This trade-off can be addressed by integrating hydraulic damping into primary suspension. However, work in this area only concentrated on comparing the effects of specific devices – the full potential of the hydraulic-damping-integrated primary suspension on combating the trade-off considering the whole parameter space is still unknown. Here we address this by making the following two contributions: (1) fully exploring the potential of hydraulic-damping-integrated primary suspension, on minimising the PYS while maintaining ride comfort; (2) systematically investigating the trade-off between the PYS reduction and suspension stroke requirement. Based on a case study using the Mark 4 Coach, this paper found that the optimal hydraulic-damping-integrated suspension can reduce PYS by 97% over the default without worsening comfort. This large reduction can potentially lead to a significant lifetime wheel-rail maintenance cost saving of approximately £42M for the fleet. If a larger suspension stroke is allowed, more cost saving can be achieved. These results provide motivation to conduct detailed engineering design studies to further examine the trade-off between financial benefits and design complexity.