Large Force Range Mechanically Adjustable Dampers for Heavy Vehicle Applications
Large Force Range Mechanically Adjustable Dampers for Heavy Vehicle Applications
复制标题
适用于重型车辆应用的大力范围机械可调阻尼器
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
W. Burke
中科院分区：
文献类型：
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作者：
W. Burke
利用各种工作原理的半主动阻尼器已经被开发用于各种车辆。这些半主动减震器的设计旨在解决与传统被动减震器相关的行驶和操纵折衷，并增加车辆稳定性。本文在介绍两种新型半主动液压阻尼器的原型之前，简要回顾了现有的半主动阻尼器设计，包括但不限于磁流变阻尼器。这两个原型阻尼器的设计提供了一个大的力范围，同时保持容易控制的阀门特性。这些阻尼器中的第一个主要用作概念验证和理解容纳在主活塞内的盘阀的动力学的手段。阀门的设计，沿着与其他信息有关的初始原型阻尼器的制造。测试结果进行了介绍和分析，并设计了第二次迭代的阀门。最终的原型阻尼器是一个按比例放大的版本，在活塞几何形状，内部光盘的轮廓，和动态密封的改进。对该大范围力阻尼器进行了试验，并与现有的磁流变阻尼器进行了比较。与典型的MR阻尼器相比，最终原型阻尼器提供了更大的力范围。最后，总结这项研究，最终原型阻尼器的车辆动力学的影响进行了讨论，并提出了进一步研究的建议。
Semi-active dampers utilizing various working principles have been developed for a variety of vehicles. These semi-active dampers have been designed to resolve the ride and handling compromise associated with conventional passive dampers, and increase vehicle stability. This thesis briefly reviews existing semi-active damper designs, including but not limited to MR dampers, before presenting two new prototype semi-active hydraulic dampers. Both prototype dampers are designed to provide a large force range while maintaining easily controllable valve characteristics. The first of these dampers served primarily as a proof of concept and a means of understanding the dynamics of a disc valve housed inside the main piston. The valve design is presented, along with other information concerning the fabrication of the Initial Prototype damper. Test results are presented and analyzed, and a second iteration of the valve is designed. The Final Prototype damper is a scaled up version of the initial design, with refinements made in piston geometry, internal disc profile, and dynamic seals. This large force range damper is tested and results are compared with existing MR dampers. The Final Prototype damper provides a significantly larger force range when compared with typical MR dampers. Finally, to conclude this research, the vehicle dynamics implications of the Final Prototype damper are discussed and recommendations for further study are made.