一种自适应的安全带网格模型快速生成算法  

An Adaptive Algorithm for Rapid Generation of Seat Belt Mesh Model

作　　者：崔嘉琪 陈文亮[1] 鲍益东[1] 李艳军[2] CUI Jiaqi;CHEN Wenliang;BAO Yidong;LI Yanjun(Nanjing University of Aeronautics and Astronautics,School of Mechanical and Electrical Engineering,Nanjing 210016,China;Nanjing University of Aeronautics and Astronautics,College of Civil Aviation,Nanjing 211106,China)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016 [2]南京航空航天大学民航学院,江苏南京211106

出　　处：《机械制造与自动化》2024年第1期137-142,共6页Machine Building & Automation

摘　　要：民机适坠性碰撞安全仿真中乘员安全带常在CAD中完成建模后再进行有限元分析,但由于仿真分析中经常需要对假人位姿进行调整以及接触定义,对已完成三维建模的安全带模型再进行调整较为不便。民机中五点式安全带由于其肩带结构特点,在常用有限元分析软件中无法快速地生成准确避障的安全带模型,因此建立一种基于障碍信息的自适应安全带模型生成算法,可通过增添关键越障点实现自适应安全带模型自动生成,提高模型质量。In the crash safety simulation of civil aircraft,the occupant seat belts are modeled in CAD before the finite element analysis is performed.However,due to the frequent need to adjust the pose and contact definition of the dummy in simulation analysis,it is much inconvenient to adjust the seat belt model of completed 3D modeling.Owing to the structural characteristics of the shoulder straps of the four-point seat belt in civil aircraft,the common finite element analysis software fails to generate an accurate obstacle avoidance seat belt model quickly.Therefore,an adaptive seat belt model generation algorithm is established based on obstacle information,which can automatically generate the adaptive seat belt model by adding key obstacle crossing points and improve the quality of the model.

关 键 词：安全带 网格生成 越障 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]