正面碰撞之有限元素人偶模型

A FINITE ELEMENT MODEL FOR A FRONTAL IMPACT DUMMY

在車禍事故中乘客損傷往往是導致嚴重受傷甚至死亡，因此探討車禍事故中乘員之損傷，是各大車廠以及消費者關心的議題。隨著電腦的發展，利用有 限元素等數值分析方法模擬衝擊實驗能更進一步節省成本。本論文藉由有限元素分析程式LS-DYNA建構數值人偶模型以替代死屍與實驗人偶，並依據美國FMVSS 49 CFR PART 572E校正實驗規範來驗證人偶數值模型，且進一步與實驗人偶值進行比較。本論文建立之有限元素正面碰撞人偶模型，可應用於車輛正面碰撞的分析工具上，以探討車輛事故中人體的動態反應及損傷分析，並可以作為車輛結構改良及安全防護配備研發的參考及車輛正面碰撞相關法規之訂定。

Traffic accidents are a danger to man's safety, life and health, as well as causing great losses to mankind. Injury prevention therefore is useful and significant for its relation to the happiness of each individual, and family in a safe and sound society. In recent years, the rapid advance of computer technology has enabled mathematicians, engineers and scientists to make significant progress in the solution of previously intractable problems. The numerical simulations of crashes provide a valuable tool for automotive engineers. The purpose of this study is to explore frontal collision phenomena by using LS-DYNA finite element code and a Hybrid III deformable dummy model. The Hybrid III finite element model is verified by the FMVSS 49 CFR PART 572E for occupant safety rule. This model can be used to analyze the dynamic response and injury to occupants in collisions. These results can be useful for evaluation of crash safety of a vehicle and for the design of new occupant restraint devices.