Total Design Optimization of Multi-Link Suspension System for Vehicle Handling and Stability.
1999
This paper discusses the design problem of vehicles using multi-link suspension system with the aim of totally optimizing vehicle handling and stability. Since this problem includes many evaluation items, and multi-link suspension system has interconnected behavior, the optimization is so complicated. An efficient and computable model is indispensable for compromising the total optimization. This paper investigates a hierarchical structure of objectives, introduces appropriate simulation models for respective items, and formulates a mathematical optimization model based on them. Further, we apply a genetic algorithm based optimization method to this problem. The genetic algorithm is based on Simple GA and introduces several extensions such as fitness function for constrained multi-objective optimization problem, similarity-based selection, direct crossover within side constraints, etc. The result of optimization calculation shows the validity of the optimization model and the optimization algorithm as a mathematical computation based design methodology.
Keywords:
- Vector optimization
- Multi-swarm optimization
- Probabilistic-based design optimization
- Meta-optimization
- Multi-objective optimization
- Metaheuristic
- Continuous optimization
- Mathematical optimization
- Engineering optimization
- Control engineering
- Engineering
- Derivative-free optimization
- Optimization problem
- Discrete optimization
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