北京交通大学学报2024，Vol.48Issue(6)：144-153,10.DOI:10.11860/j.issn.1673-0291.20240001
碳纤维复合材料超大开度门结构设计与仿真
Design and simulation of ultra-large loading door structure made of carbon fiber composite
摘要
Abstract
To improve the efficiency of loading and unloading large-sized cargo in freight train EMUs operations and meet energy-saving and emission-reduction goals,this study proposes the design of a super-large opening door made from carbon fiber composite materials,along with an automated open-ing and closing mechanism.This design aims to reduce vehicle weight and energy consumption while meeting the high strength,high stiffness,and low weight requirements of large-opening doors.First,the structural design of the carbon fiber composite door draws on mature application cases from avia-tion and rail freight transportation.Then,the HyperWorks commercial simulation software is used to conduct a numerical simulation study on the structural design of the door body.Through an in-depth analysis of the effects of longitudinal beams,ring beams,and skin structure on the stiffness and strength of the carbon fiber composite ultra-large loading door,the structural design and material la-yup are optimized.Finally,a large-scale test rig is designed and loaded to simulate internal and exter-nal air pressure loads for structural testing,verifying the mechanical properties and locking perfor-mance of the ultra-large loading door.The results indicate that the integration of 7 ring beams and 16 peripheral locking devices within a plate-beam structure of the door leaf effectively satisfies the requi-site strength and stiffness criteria.Furthermore,the manufacturing process has been demonstrated to be feasible and operational,yielding significant optimization outcomes and meeting practical technical specifications.关键词
高速动车组车门/碳纤维车门/复合材料/有限元仿真/优化设计Key words
high-speed train doors/carbon fibre plastic doors/composite materials/finite element simulation/optimization design分类
交通工程引用本文复制引用
梁永廷,于文学,熊芯,乔珂..碳纤维复合材料超大开度门结构设计与仿真[J].北京交通大学学报,2024,48(6):144-153,10.基金项目
中央高校基本科研业务费专项资金(2022JBXT008) （2022JBXT008）
中国国家铁路集团有限公司科技研究开发计划课题(P2023X015) （P2023X015）
国家自然科学基金(U2034208)Fundamental Research Funds for the Central Universities(2022JBXT008) （U2034208）
Science and Technology Research and Develop-ment Program of China National Railway Group Co.,Ltd.(P2023X015) （P2023X015）
National Natural Science Foundation of China(U2034208) （U2034208）
