Experimental assessment of a linear actuator driven by magnetorheological clutches for automotive active suspensions
| Autor: | William East, Jean-Sébastien Plante, Guifre Julio, Jérôme Turcotte |
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| Rok vydání: | 2021 |
| Předmět: |
Special Issue Articles
0209 industrial biotechnology active suspension magnetorheological clutches Computer science business.industry Mechanical Engineering 05 social sciences rack Automotive industry Automotive 02 engineering and technology and pinion mechanism Linear actuator Active suspension Automotive engineering controlled slippage actuator Rack 020901 industrial engineering & automation Magnetorheological fluid 0501 psychology and cognitive sciences General Materials Science Clutch business 050107 human factors |
| Zdroj: | Journal of Intelligent Material Systems and Structures |
| ISSN: | 1530-8138 1045-389X |
| Popis: | The main functions of automotive suspensions are to improve passenger comfort as well as vehicle dynamic performance. Simultaneously satisfying these functions is not possible because they require opposing suspension adjustments. This fundamental design trade-off can be solved with an active suspension system providing real-time modifications of the suspension behavior and vehicle attitude corrections. However, current active suspension actuator technologies have yet to reach a wide-spread commercial adoption due to excessive costs and performance limitations. This paper presents a design study assessing the potential of magnetorheological clutch actuators for automotive active suspension applications. An experimentally validated dynamic model is used to derive meaningful design requirements. An actuator design is proposed and built using a motor to feed counter-rotating MR clutches to provide upward and downward forces. Experimental characterization shows that all intended design requirements are met, and that the actuator can output a peak force of ±5300 N, a peak linear speed of ±1.9 m/s and a blocked-output force bandwidth of 92 Hz. When compared to other relevant technologies, the MR approach simultaneously shows both better force density and speeds (bandwidth) while adding minimal costs and weight. Results from this experimental assessment suggest that MR slippage actuation is promising for automotive active suspensions. |
| Databáze: | OpenAIRE |
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