Development of Vehicle Semi-active Seat Suspension with Magneto-rheological Damper

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (8) : 239-244.

KOU Fa-rong

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Abstract

In order to improve the riding comfortability of vehicle driver, a kind of semi-active seat suspension with magneto-rheological damper was developed. The working principle and mechanical model of magneto-rheological damper were analyzed. As a result，the dynamic model of the vehicle semi-active seat suspension was established. The fuzzy control strategies with semi-active seat suspension were designed and the simulation analysis of fuzzy control seat suspension were carried out under the sinusoidal inputs. In addition, the physical prototypes of magneto-rheological damper and test bench system were made. The damping performance tests of the magneto-rheological damper were done. Then, the bench tests of the semi-active seat suspension with magneto-rheological damper were completed. The results show that the test results are closely consistent with the simulation results and the magneto-rheological damper has good controllability. The developed semi-active seat suspension based on magneto-rheological damper obviously reduces the vehicle seat vibration.

Key words

magneto-rheological damper / semi-active control / seat suspension / fuzzy control / bench test /

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KOU Fa-rong . Development of Vehicle Semi-active Seat Suspension with Magneto-rheological Damper[J]. Journal of Vibration and Shock, 2016, 35(8): 239-244

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