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| Multi-objective optimization and design considering automotive high-speed and low-speed crashworthiness |
| Received:May 20, 2013 Revised:August 24, 2013 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201404010 |
| KeyWord:high-speed crashworthiness low-speed crashworthiness light weight multi-objective optimization |
| Author | Institution |
| 姜潮 |
湖南大学 汽车车身先进设计制造国家重点实验室, 长沙 ;湖南大学 机械与运载工程学院, 长沙 |
| 邓善良 |
湖南大学 汽车车身先进设计制造国家重点实验室, 长沙 ;湖南大学 机械与运载工程学院, 长沙 |
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| Abstract: |
| The main purpose of the design in frontal high-speed crashworthiness is to ensure the safety of occupants and minimize the passengers body damage.Meanwhile, in the frontal low-speed crashworthiness design, it requests to reduce automotive collision damage and possess good economic performance in the collision damage repair.According to the characteristics above, the vehicle frontal crashworthiness of high-speed and low-speed positive crashworthiness combined, and considering the lightweight of automobile body parts, an optimization design method is proposed.That is, thicknesses of frontal bumper, crash-box inner and outer plates, frontal longitudinal beam internal and external plates are selected as five design variables, and the energy of frontal longitudinal beam absorbed in the low-speed collision is taken as the basis of whether the large deformation, the agent model and genetic algorithm are used to calculate.Finally the method had been applied to a vehicle crashworthiness design. |
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