平衡车车架拓扑优化设计与仿真分析

Optimized Design and Simulation Analysis of Balance Bike Frame Topology

中文关键词: 平衡车车架  有限元分析  拓扑优化  轻量化设计  Inspire

英文关键词: balance bike frame  finite element analysis  topology optimization  lightweight design  Inspire

中文摘要:

      目的 本研究以平衡车车架为研究对象，旨在满足模型强度与刚度约束条件的前提下，通过拓扑优化设计实现车架质量的减轻，从而为平衡车车架的轻量化设计提供参考。方法 首先，通过SolidWorks软件建立车架的三维模型，然后利用ANSYS Workbench对原始车架进行静力学分析，以获取车架的应力分布情况。在此基础上，采用Altair Inspire软件对原模型进行拓扑优化，优化目标是减少车架的质量。结果 经过拓扑优化设计，得到了优化后的重构模型。与原始车架相比，优化后的车架质量减少了约54.0%。虽然优化后的车架在满足使用规范的前提下，米塞斯应力有所上升，但仍小于材料的屈服强度，确保了车架的安全性和稳定性。结论 本研究通过拓扑优化方法有效地减少了平衡车车架的质量，同时保持了必要的结构强度和刚度。尽管优化后车架的应力有所增加，但仍在材料允许范围内，证明了拓扑优化在车架轻量化设计中的可行性。该方法为未来平衡车车架部件的设计和改进提供了新的思路和参考。

英文摘要:

      The work aims to put focuses on the frame of a balance bike to reduce weight of balance bike frames through topology optimization while satisfying the strength and stiffness constraints of the model, so as to provide a reference for lightweight design of balance bike frames. First, a 3D model of the frame was created using SolidWorks. Then, static analysis of the original frame was conducted using ANSYS Workbench to obtain the stress distribution of the frame. Based on these results, topology optimization was performed on the original model using Altair Inspire, with the objective of reducing the frame weight. After topology optimization, a reconstructed model was obtained. Compared with the original frame, the weight of the optimized frame was reduced by approximately 54.0%. Although the von Mises stress of the optimized frame increased under the premise of meeting usage specifications, it was still less than the yield strength of the material, ensuring the safety and stability of the frame. This study effectively reduces the weight of the balance bike frame through topology optimization while maintaining the necessary structural strength and stiffness. Despite the increase in stress, it remains within the allowable range of the material, demonstrating the feasibility of topology optimization in the lightweight design of frames. This method provides new ideas and references for the future design and improvement of balance bike frame components.