法医学杂志2017，Vol.33Issue(6)：575-580,586,7.DOI:10.3969/j.issn.1004-5619.2017.06.001
基于3D激光扫描、多刚体重建和遗传算法优化的车-人碰撞事故再现模拟与损伤分析
Reconstruction of Vehicle-human Crash Accident and Injury Analysis Based on 3D Laser Scanning, Multi-rigid-body Reconstruction and Optimized Genetic Algorithm
摘要
Abstract
Objective To reconstruct a vehicle-bicycle-cyclist crash accident and analyse the injuries us-ing 3D laser scanning technology, multi-rigid-body dynamics and optimized genetic algorithm, and to provide biomechanical basis for the forensic identification of death cause. Methods The vehicle was measured by 3D laser scanning technology. The multi-rigid-body models of cyclist, bicycle and vehicle were developed based on the measurements. The value range of optimal variables was set. A multi-ob-jective genetic algorithm and the nondominated sorting genetic algorithm were used to find the optimal solutions, which were compared to the record of the surveillance video around the accident scene. Re-sults The reconstruction result of laser scanning on vehicle was satisfactory. In the optimal solutions found by optimization method of genetic algorithm, the dynamical behaviours of dummy, bicycle and ve-hicle corresponded to that recorded by the surveillance video. The injury parameters of dummy were consistent with the situation and position of the real injuries on the cyclist in accident. Conclusion The motion status before accident, damage process by crash and mechanical analysis on the injury of the victim can be reconstructed using 3D laser scanning technology, multi-rigid-body dynamics and opti-mized genetic algorithm, which have application value in the identification of injury manner and analysis of death cause in traffic accidents.关键词
法医病理学/生物力学/多刚体动力学/图像处理,计算机辅助/事故,交通/遗传算法/3D激光扫描技术Key words
forensic pathology/biomechanics/rigid multibody dynamics/image processing/computer-as-sisted/accidents/traffic/genetic algorithm/3D laser scanning technology分类
社会科学引用本文复制引用
孙杰,王涛,李正东,邵煜,张志勇,冯浩,邹冬华,陈忆九..基于3D激光扫描、多刚体重建和遗传算法优化的车-人碰撞事故再现模拟与损伤分析[J].法医学杂志,2017,33(6):575-580,586,7.基金项目
"十三五"国家重点研发计划资助项目(2016YFC0800702) （2016YFC0800702）
国家自然科学基金资助项目(81571851,81401559) （81571851,81401559）
上海市法医学重点实验室资助项目(17DZ2273200) （17DZ2273200）
上海市司法鉴定专业技术服务平台资助项目(16DZ2290900) （16DZ2290900）
上海市科委社会发展专项(14231202500) （14231202500）
