Comfort-oriented Semi-active Matching Design with a Magneto-Rheological Air Suspension Mechanism
- PDF / 1,335,673 Bytes
- 11 Pages / 595.276 x 790.866 pts Page_size
- 60 Downloads / 243 Views
RESEARCH PAPER
Comfort‑oriented Semi‑active Matching Design with a Magneto‑Rheological Air Suspension Mechanism Ran Ma1 · Cuong Minh Do2 Received: 8 February 2020 / Accepted: 18 September 2020 © Shiraz University 2020
Abstract This study aims to present a method for matching the stiffness and damping of a magneto-rheological (MR) air suspension system that will ensure optimal ride comfort of a road vehicle traveling on roads with different roughness and speeds. The authors study the matching of the damping coefficient with the damping ratio, and obtain the adjustment range of the damping coefficient. Based on the linearization of the air spring, a suspension model with adjustable stiffness and adjustable damping has been established. To improve the ride comfort of the vehicle and to control the dynamic deflection and dynamic load, the optimal matching of stiffness and damping under different working conditions has been analyzed by using the stepwise optimal solution method. Then, the authors design four stiffness levels and five damping levels, and propose the parameter matching scheme of the MR air suspension system. The theoretical analysis shows that the proposed scheme can improve vehicle vertical dynamic performance. Four levels of adjustment for the width of the orifice between the air spring and auxiliary chamber and six levels of adjustment for the MR damper have been designed respectively. The findings of this study will inform other studies on vibration control. Keywords MR damper · Air spring · Suspension · Matching · Ride comfort
1 Introduction Vehicle running and operating conditions are complex and changeable. The suspension system of a vehicle is used to ensure the ride comfort of the vehicle under good operating conditions and stability of the vehicle under bad operating conditions (Gan et al. 2015; Trikande et al. 2018; Arunshankar and Nivas Kumar 2018). The traditional suspension system (Ibrahim 2008; Stojanović et al. 2018; Lan et al. 2014) with fixed stiffness and damping is designed for specific working conditions, which limits the further improvement of vehicle performance. The semi-active suspension with adjustable damping (Caterino et al. 2011; Berardengo et al. 2015) and stiffness (Fateh et al. 2016; Han et al. 2018) widens the range of parameter adjustment and * Ran Ma [email protected] 1
School of Mechanical and Electrical Engineering, Jiangsu Normal University, Xuzhou 221116, People’s Republic of China
Department of Mechanical Engineering, University of Agriculture and Forestry, Hue University, Hue, Vietnam
2
has superior vibration performance, which can improve the adaptability of vehicles to different operating conditions. In designing the hardware for a semi-active suspension, it is necessary to determine optimal suspension settings (Anirban et al. 2016; Sun et al. 2018; Berardengo et al. 2019) to ensure ride comfort at low frequencies and drive safely at high frequencies. Numerous studies were conducted on the description and improvement of ride comfort (Zhao e
Data Loading...
