TY - JOUR AU1 - Chen, Zhou AU2 - Fei-Xiang, Xu AU3 - De-Qiang, Cheng AB - To enhance the ride comfort and roll stability of the special vehicle, this study concentrates on the inherent parameters optimization of the hydraulically interconnected suspension (HIS) system. A road-tire-HIS-body model of a special vehicle is established based on the AMESim/Simulink co-simulation platform. Then the sensitivity of the HIS system is analyzed to determine the design variables to be optimized through the AMESim/Simulink/Isight co-simulation. Two objectives including improving the ride comfort and roll stability of the vehicle are proposed. In order to enhance the population diversity and accelerate the convergence velocity, the improved non-dominated sorting genetic algorithm II (NSGA-II) based on orthogonal experimental design method is used for multi-objective optimization problem of the HIS system. The numerical simulations indicate that the improved NSGA-II (INSGA-II) can generate better distributed Pareto solutions than traditional NSGA-II. Furthermore, simulation results indicate that both of the ride comfort and roll stability of the vehicle are improved based on the HIS system optimized by INSGA-II than NSGA-II. Compared with the NSGA-II method, the vehicle ride comfort and roll stability of HIS system optimized by INSGA-II are increased by 17.62% and 8.56% in sinusoidal conditions, respectively. TI - A multi-objective optimization method for hydraulically interconnected suspension system JF - Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering DO - 10.1177/09544070221140272 DA - 2024-04-01 UR - https://www.deepdyve.com/lp/sage/a-multi-objective-optimization-method-for-hydraulically-interconnected-mAvLTAiD9I SP - 1234 EP - 1248 VL - 238 IS - 5 DP - DeepDyve ER -