自行车座管的轻量化设计及力学仿真分析  

Lightweight Design and Mechanical Simulation Analysis of Bicycle Seat Post

作　　者：方晶晶 王超 Fang Jingjing;Wang Chao(Anhui Additive Manufacturing Engineering Research Centre,Bengbu Anhui 233030,China;School of Mechanical and Vehicle Engineering,Bengbu College,Bengbu Anhui 233030,China)

机构地区：[1]安徽省增材制造工程研究中心,安徽蚌埠233030 [2]蚌埠学院机械与车辆工程学院,安徽蚌埠233030

出　　处：《机械管理开发》2025年第3期97-99,102,共4页Mechanical Management and Development

基　　金：蚌埠学院2023年省级大学生创新创业训练计划项目(S202311305124);安徽省高等学校省级质量工程教学研究项目(2022jyxm969)。

摘　　要：自行车的高强度轻量化设计一直是行业内研究的重点方向,目前对于座管的设计主要集中在材料方面,但其结构的变化对于性能也有较大的影响,因此设计了具有不同截面参数和不同多孔镂空结构的座管模型,并进行了力学仿真分析,对比分析不同结构自行车座管的性能变化。结果表明,随着截面面积的减小,座管质量减小26.12%,最大位移增加35.52%,最小安全系数降低25.74%,最大屈服百分比增加34.71%,最大米塞斯等效应力增加34.75%;对于多孔镂空结构,圆形孔可以获得更小的质量(减小38.87%),但最大位移增加301.72%,最小安全系数降低78.22%,最大屈服百分比增加351.11%,最大米塞斯等效应力增加351.06%。综合上述结果,在实际应用中还需要结合具体场景选择合适的轻量化方案。The design of high-strength and lightweight bicycle has been the key direction of research in the industry,and the current design of the seat tube mainly focuses on the material,but the change of its structure also has a greater impact on the performance,therefore,a seat tube model with different cross-sectional parameters and different porous skeleton structure was designed,and a mechanical simulation analysis was carried out to compare and analyse the change of the performance of the seat tube of a bicycle with different structure.The results show that with the reduction of cross-sectional area,the mass of the seat tube decreases by 26.12%,the maximum displacement increases by 35.52%,the minimum factor of safety decreases by 25.74%,the maximum yield percentage increases by 34.71%,and the maximum Mises equivalent force increases by 34.75%;for the porous skeleton structure,the circular holes can obtain a smaller mass(reduced by 38.87%),but the maximum displacement increases by301.72%,the minimum factor of safety decreases by 78.22%,the maximum percentage yield increases by 351.11%,and the maximum Mises equivalent stress increases by 351.06%.Taking the above results together,it is still necessary to choose a suitable lightweighting solution in practical applications in combination with specific scenarios.

关 键 词：自行车座管 轻量化 多孔结构 仿真分析 

分 类 号：TH122[机械工程—机械设计及理论]