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International Journal of Automotive Technology > Volume 19(2); 2018 > Article
International Journal of Automotive Technology 2018;19(2): 245-252.
doi: https://doi.org/10.1007/s12239-018-0023-2
DESIGN OPTIMIZATION OF A REAR INDEPENDENT SUSPENSION FOR THE KOREAN LIGHT TACTICAL VEHICLE
Kwonhee Suh1, Hiseak Yoon2
1Kia Motors Corporation
2Chonnam National University
ABSTRACT
Steering and suspension handle the direction of a vehicle according to the driver's intentions and control the disturbance from the road surface while supporting the vehicle body. The static and dynamic characteristics of two systems are critical factors for the ride comfort and the directional stability. In the layout stage, the hard points of steering and suspension systems are determined. In the next design stage, the detailed design of the system, including gearboxes, springs, shock absorbers, and control links, is carried out. While the optimal hard points of a suspension are determined at the precedent design, interference with other peripheral components should be carefully examined in the detailed design process. In the case of the design point change should be made to avoid the interference, subsequent position and shape changes of the link mechanism are required. Therefore, there is a need to examine the optimization of suspension compliance characteristics with chassis design changes and the durability performance of the modified design. This study proposes an integrated analysis method for the design optimization and the durability evaluation of such optimized design specifications of the rear independent suspension for a military vehicle.
Key Words: Tactical vehicle, Independent suspension, Kriging model, CMA-ES, Durability
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