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Article

Dynamic Characteristics Analysis of ISD Suspension System under Different Working Conditions

1
School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China
2
State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, China
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Author to whom correspondence should be addressed.
Academic Editor: Vasyl Martsenyuk
Mathematics 2021, 9(12), 1345; https://doi.org/10.3390/math9121345
Received: 26 May 2021 / Revised: 7 June 2021 / Accepted: 8 June 2021 / Published: 10 June 2021
(This article belongs to the Special Issue Dynamical Systems and System Analysis)
The “inerter-spring-damper” (ISD) suspension system is a suspension system composed of an inerter, spring, and damper. To study the ride comfort and stability of the vehicle by using the ISD suspension system, a vehicle model with ISD suspension is established in this paper. The vehicle model including vertical, pitch, roll, and yaw motion of the vehicle body. Based on the vehicle model, the differential equation of motion with ISD suspension is obtained. The dynamic responses of the ISD suspension system are investigated by using different road excitations. At the same time, the influence of coupled excitation and single excitation on the vibration reduction performance of the ISD suspension system is studied. Then, the dynamic responses of ISD suspension and passive suspension are compared, and the improvement of comprehensive vibration reduction performance of ISD suspension system is quantitatively analyzed. The numerical results illustrate the ISD suspension has the optimal vehicle speed under different road excitations, and the comprehensive vibration reduction performance of the ISD suspension is the best when driving at the optimal vehicle speed. Under different types of road excitation, ISD suspension shows excellent comprehensive vibration reduction performance. ISD suspension is more suitable for vibration reduction of complex roads than that of a single road. View Full-Text
Keywords: inerter; ISD suspension; vehicle; dynamics; road excitation; optimal vehicle speed inerter; ISD suspension; vehicle; dynamics; road excitation; optimal vehicle speed
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MDPI and ACS Style

Li, X.; Li, F.; Shang, D. Dynamic Characteristics Analysis of ISD Suspension System under Different Working Conditions. Mathematics 2021, 9, 1345. https://doi.org/10.3390/math9121345

AMA Style

Li X, Li F, Shang D. Dynamic Characteristics Analysis of ISD Suspension System under Different Working Conditions. Mathematics. 2021; 9(12):1345. https://doi.org/10.3390/math9121345

Chicago/Turabian Style

Li, Xiaopeng; Li, Fanjie; Shang, Dongyang. 2021. "Dynamic Characteristics Analysis of ISD Suspension System under Different Working Conditions" Mathematics 9, no. 12: 1345. https://doi.org/10.3390/math9121345

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