Al Sakka, Monzer

Burrow, Steve G

Clare, Lindsay R

Conn, Andrew T

Dhaens, Miguel

He, Haonan

Jiang, Jason Zheng

Li, Yuan

Neild, Simon A

English

Dynamic performance of a passive vehicle suspension can be improved with the help of an active actuator. However, there could be problematic actuation requirements, such as high energy consumption and large actuator forces. A novel design approach for passive-active-combined suspensions has been previously proposed by the authors to improve the trade-off between the dynamic performance and actuation requirements. To show its effectiveness in practical applications, an experimental study is carried out in this paper. First, a physical implementation of the active part of combined suspensions is proposed, which mainly includes a ball screw and a rotary brushless DC motor. Then, an experimentally verified network model of this physical implementation is developed by considering parasitic effects of the device. Taking a quarter car as an example, it is found that for the proposed setup, the inertia of the screw and motor rotor has an evident effect on suspension performance, while the friction of the ball screw, the mechanical loss and cogging torque of the motor are negligible. If the parameters of the passive part and the active controller gain are re-tuned after replacing the ideal active part with the identified network model of the proposed physical implementation, the optimal trade-off between ride comfort and actuation force can be retained or even improved. An example point on the updated trade-off has been verified via experiments, where the correlation coefficient on response matching is approximately 96%

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                          He, H., Li, Y., Clare, L. R., Jiang, J. Z., Al Sakka, M., Dhaens, M.,Burrow, S. G., Neild, S. A., & Conn, A. T. (2023). Experimental studyon a passive-active-combined suspension design methodology(Invited Talk). Abstract from The 6th INTERNATIONALCONFERENCE ON DYNAMICS, VIBRATION AND CONTROL,ShangHai, China.Peer reviewed versionLink to publication record in Explore Bristol ResearchPDF-documentUniversity of Bristol - Explore Bristol ResearchGeneral rightsThis document is made available in accordance with publisher policies. Please cite only thepublished version using the reference above. Full terms of use are available:http://www.bristol.ac.uk/red/research-policy/pure/user-guides/ebr-terms/ 6th INTERNATIONAL CONFERENCE ON DYNAMICS, VIBRATION AND CONTROL 2022, Shanghai  Experimental study on a passive-active-combined  suspension design methodology Haonan He1, Yuan Li*1, Lindsay Clare2, Jason Zheng Jiang*1, Monzer Al Sakka3, Miguel Dhaens3, Steve Burrow2, Simon Neild1 and Andrew Conn1 1Department of Mechanical Engineering, University of Bristol, Bristol, UK 2Department of Aerospace Engineering, University of Bristol, Bristol, UK 3Tenneco, Sint-Truiden, Belgium *Corresponding author: Yuan Li, E-mail: yl14470@bristol.ac.uk  Jason Zheng Jiang, Email: z.jiang@bristol.ac.uk  Abstract: Dynamic performance of a passive vehicle suspension can be improved with the help of an active actuator. However, there could be problematic actuation requirements, such as high energy consumption and large actuator forces. A novel design approach for passive-active-combined suspensions has been previously proposed by the authors to improve the trade-off between the dynamic performance and actuation requirements. To show its effectiveness in practical applications, an experimental study is carried out in this paper. First, a physical implementation of the active part of combined suspensions is proposed, which mainly includes a ball screw and a rotary brushless DC motor. Then, an experimentally verified network model of this physical implementation is developed by considering parasitic effects of the device. Taking a quarter car as an example, it is found that for the proposed setup, the inertia of the screw and motor rotor has an evident effect on suspension performance, while the friction of the ball screw, the mechanical loss and cogging torque of the motor are negligible. If the parameters of the passive part and the active controller gain are re-tuned after replacing the ideal active part with the identified network model of the proposed physical implementation, the optimal trade-off between ride comfort and actuation force can be retained or even improved. An example point on the updated trade-off has been verified via experiments, where the correlation coefficient on response matching is approximately 96%. 

Experimental study on a passive-active-combined suspension design methodology (Invited Talk)

https://research-information.bris.ac.uk/files/372350385/ICDVC2022_Abstract_Haonan.pdf

Experimental study on a passive-active-combined suspension design methodology (Invited Talk)

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