通过发动机驱动的双气室液压气动支架来调整悬架高度并保持恒定的刚性特性:实验研究和建模
Ruihong Li1, Fan Yang2,3, Feng Zhao1
1Research Center for Intelligent Materials and Structures (CIMS), College of Mechanical Engineering and Automation, Huaqiao University, Xiamen, Fujian, P. R. China.
PloS one
|November 26, 2024
概括
这项研究引入了一种用于车辆悬架的新型双气室水气动支架 (DHPS),可实现稳定度的连续高度调整. DHPS确保车辆的姿势一致,并在高度变化时增强控制.
科学领域:
- 机械工程 机械工程
- 汽车工程 汽车工程
- 控制系统 控制系统
背景情况:
- 车辆悬架的持续高度调节对于稳定性至关重要,并防止因不均的姿势而脱轨.
- 传统的空气悬架系统在调整过程中表现出变化的动态特性,阻碍有效控制.
- 现有的解决方案往往会损害高度调节的动态性能.
研究的目的:
- 为车辆悬架提出一种新型的双气室水气动支架 (DHPS).
- 在持续的高度调整过程中实现恒定或可预测的刚性.
- 在整个调整过程中保持质量保护 (石油和天然气).
主要方法:
- 开发一个双气室水气动支架 (DHPS) 设计.
- 数学建模和DHPS的动态属性调查.
- 通过实验室测试进行原型制造和实验验证.
- 使用四分之一汽车模型进行性能评估.
主要成果:
- DHPS利用辅助气室体积变化通过电机驱动的活塞进行高度调节.
- 实验数据显示,在50mm/s (1周期) 和25mm/s (2周期) 的电机驱动活塞转速下,在1-2个周期内保持和测试稳定性.
- 四分之一汽车模型模拟显示,25mm和50mm步骤的步骤响应时间为0.40s-0.50s (200mm/s) 和0.76s-1.36s (40mm/s).
结论:
- 拟议的DHPS有效地实现了持续的高度调整,同时保持稳定的刚性.
- 该系统表现出快速响应和稳定性,在高度调整过程中性能优于传统的空气悬挂.
- DHPS为提高车辆悬架控制和性能提供了一个有前途的解决方案.
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