Modeling Mechanical Lower Limb Impactor for Pedestrian Interaction with Scooter

• Main Authors: Chien-HsunWu, 吳建勳
• Other Authors: Tsai-Jeon Huang
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/74083772866391602303

碩士 === 國立成功大學 === 機械工程學系 === 103 === The human body collision injury research has been developed for many years in automobile industry. Crash dummies are commonly used as a tool to measure human injuries because their biological reactions and injury assessments are similar to real human. In this study, EEVC (European Enhanced Vehicle-Safety Committee) proposed sub-system tests to evaluate reponses and injuries of pedestrians in lateral car-pedestrian accidents. The purpose in this thesis is to design a mechanical pedestrian lower limb impactor finite element model, which can analyse knee and ankle injuries of scooter-pedestrian accidents. The CAD software and finite element method software can help the design process, analysing the three physical quantity of knee and six degrees of ankle’s three rotation axes. First, the study improve ankle’s mechanism of Thor crash dummy and use software to simulate the same test as cadaver test. The simulation results should be close to the data curve of cadaver test in order to comfirm the ankle’s mechanism has the same reponses and injuries as real human. Then, the new mechanical lower limb impactor combines the new ankle’s mechanism with lower limb impactor of EEVC. Last, this thesis simulated scooter accident with the new mechanical lower limb impactor model, and evaluate the injuries of pedestrians’ lower limb. There are three situation with scooter-pedestrian accidents. The new impactor has good biofidelity and can provide scooter factory for passive safety design.