Robustness optimization for vehicular crash simulations
Computing in Science and Engineering
Mathematics and Computers in Simulation
An effective use of crowding distance in multiobjective particle swarm optimization
GECCO '05 Proceedings of the 7th annual conference on Genetic and evolutionary computation
A comparative study of metamodeling methods for multiobjective crashworthiness optimization
Computers and Structures
A review of robust optimal design and its application in dynamics
Computers and Structures
A Multiobjective Memetic Algorithm Based on Particle Swarm Optimization
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
Finite Elements in Analysis and Design
Structural and Multidisciplinary Optimization
Multiobjective reliability-based optimization for design of a vehicledoor
Finite Elements in Analysis and Design
Multiobjective optimization design for vehicle occupant restraint system under frontal impact
Structural and Multidisciplinary Optimization
On robust design optimization of truss structures with bounded uncertainties
Structural and Multidisciplinary Optimization
Structural and Multidisciplinary Optimization
Crashworthiness design of multi-component tailor-welded blank (TWB) structures
Structural and Multidisciplinary Optimization
Structural and Multidisciplinary Optimization
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Although deterministic optimization has to a considerable extent been successfully applied in various crashworthiness designs to improve passenger safety and reduce vehicle cost, the design could become less meaningful or even unacceptable when considering the perturbations of design variables and noises of system parameters. To overcome this drawback, we present a multiobjective robust optimization methodology to address the effects of parametric uncertainties on multiple crashworthiness criteria, where several different sigma criteria are adopted to measure the variations. As an example, a full front impact of vehicle is considered with increase in energy absorption and reduction of structural weight as the design objectives, and peak deceleration as the constraint. A multiobjective particle swarm optimization is applied to generate robust Pareto solution, which no longer requires formulating a single cost function by using weighting factors or other means. From the example, a clear compromise between the Pareto deterministic and robust designs can be observed. The results demonstrate the advantages of using multiobjective robust optimization, with not only the increase in the energy absorption and decrease in structural weight from a baseline design, but also a significant improvement in the robustness of optimum.