鲁棒h -∞控制器在MRF发动机悬置中改善车辆平顺性

IF 0.8 4区工程技术 Q4 ACOUSTICS International Journal of Acoustics and Vibration Pub Date : 2020-06-30 DOI:10.20855/ijav.2020.25.21592

S. Hosseini, J. Marzbanrad

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引用次数: 3

摘要

本文利用磁流变液(MRF)为半主动发动机悬置设计了鲁棒控制器。为此，选择了一个8自由度车辆模型，其中路面粗糙度和发动机振动是系统的干扰输入，并且考虑了车辆质量作为不确定性。此外，执行器施加在车身上的力的最大幅度和频率分别限制在0~1500N和0~10Hz范围内。为了验证这种设计，将所提出的控制器与PID控制器进行比较。对比结果表明，所设计的控制器在处理不确定性时具有良好的性能，使发动机振动频率的传递小于6%。研究还表明，在包含该控制器的系统中，由于干扰而进入系统的振动有效地减少了。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Robust H-infinity Controller in a MRF Engine Mount for Improving the Vehicle Ride Comfort

In this paper, a robust controller is designed with the help of a Magnetorheological fluid (MRF) for a semi-active engine mount. To do so, an 8-DOF vehicle model is chosen in which the road roughness and engine vibration are the disturbance inputs to the system and the mass of the vehicle is taken into accounts as an uncertainty. In addition, the maximum magnitude and frequency of the force applied to the vehicle body by the actuators are limited in the ranges of 0~1500N and 0~10Hz, respectively. To validate such a design, the proposed controller is compared with a PID controller. The comparison results show that the proposed controller has a good performance while dealing with uncertainties such a way that using it leads to transmitting the engine vibration frequency less than 6%. It is also shown that the vibrations due to disturbances entering the system are effectively reduced in the system including the proposed controller.

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来源期刊

International Journal of Acoustics and Vibration ACOUSTICS-ENGINEERING, MECHANICAL

CiteScore

1.60

自引率

10.00%

发文量

审稿时长

12 months

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