Design and Motion Characteristics of Active–Passive Composite Suspension Actuator

Hao Chen, Mingde Gong (), Dingxuan Zhao, Wei Zhang, Wenbin Liu and Yue Zhang
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Hao Chen: School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
Mingde Gong: School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
Dingxuan Zhao: School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
Wei Zhang: School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
Wenbin Liu: School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
Yue Zhang: School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China

Mathematics, 2022, vol. 10, issue 22, 1-21

Abstract: The suspension system needs both an active mode and passive mode when the emergency rescue vehicle is running on a complex road. Therefore, an active–passive composite suspension actuator (APCSA) is designed in this paper. Firstly, combined with computational fluid dynamics theory and dynamic mesh technology, the complete fluid domain of the original passive suspension actuator (PSA) is simulated. Secondly, in accordance with the simulation results and in consideration of the working conditions of the active suspension of the emergency rescue vehicle, the APCSA is designed, and its flow field characteristics are studied. Finally, test results show that the maximum recovery damping force/compression damping force of the APCSA is 2428.98 N/−1470.29 N, which is 53.5%/50.4% lower than that of the original PSA. Hence, the dynamic response capability of the actuator is effectively improved, which lays a foundation for improving the ride comfort and handling stability of emergency rescue vehicles on complex roads.

Keywords: emergency rescue vehicle; active–passive composite suspension; actuator; compound working mode; computational fluid dynamics; dynamic mesh (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
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