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增材制造山地自行车车把立的案例研究。

Case Study of Additively Manufactured Mountain Bike Stem.

作者信息

Véle Filip, Ackermann Michal, Macháček Jakub, Šafka Jiří

机构信息

Faculty of Mechanical Engineering, Technical University of Liberec, Studentská 1402/2, 461 17 Liberec, Czech Republic.

The Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 1402/2, 461 17 Liberec, Czech Republic.

出版信息

Materials (Basel). 2023 Jun 29;16(13):4717. doi: 10.3390/ma16134717.

DOI:10.3390/ma16134717
PMID:37445030
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10342991/
Abstract

This article is focused on a case study of the topology optimisation of a bike stem manufactured by selective laser melting (SLM) additive technology. Topology optimisation was used as a design tool to model a part with less material used for transferring specific loads than the conventional method. For topology optimisation, Siemens NX 12 software was used with loads defined from the ISO 4210-5 standard. Post-processing of the topology-optimised shape was performed in Altair Inspire software. For this case study, the aluminium alloy AlSi10Mg was selected. For qualitative evaluation, the mechanical properties of the chosen alloy were measured on the tensile specimens. The design of the new bike stem was evaluated by Ansys FEA software with static loadings defined by ISO 4210-5. The functionality of the additively manufactured bike stem was confirmed by actual experiments defined by ISO 4210-5. The resulting new design of the bike stem passed both static tests and is 7.9% lighter than that of the reference.

摘要

本文聚焦于一个采用选择性激光熔化（SLM）增材制造技术制造的自行车座杆拓扑优化的案例研究。拓扑优化被用作一种设计工具，以对一个比传统方法使用更少材料来传递特定载荷的零件进行建模。对于拓扑优化，使用了西门子NX 12软件，并根据ISO 4210-5标准定义载荷。拓扑优化形状的后处理在Altair Inspire软件中进行。对于本案例研究，选择了铝合金AlSi10Mg。为了进行定性评估，在拉伸试样上测量了所选合金的力学性能。通过Ansys FEA软件对新自行车座杆的设计进行了评估，其静态载荷由ISO 4210-5定义。通过ISO 4210-5定义的实际实验证实了增材制造自行车座杆的功能。最终得到的自行车座杆新设计通过了两项静态测试，并且比参考设计轻7.9%。

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