Bionic Optimization Design and Fatigue Life Prediction of a Honeycomb-Structured Wheel Hub.

IF 3.4 3区 医学 Q1 ENGINEERING, MULTIDISCIPLINARY Biomimetics Pub Date : 2024-10-09 DOI:10.3390/biomimetics9100611
Na Liu, Xujie Liu, Yueming Jiang, Peng Liu, Yuanyuan Gao, Hang Ding, Yujun Zhao
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Abstract

The wheel hub is an important component of the wheel, and a good hub design can significantly improve vehicle handling, stability, and braking performance, ensuring safe driving. This article optimized the hub structure through morphological aspects, where reducing the hub weight contributed to enhanced fuel efficiency and overall vehicle performance. By referencing honeycombed structures, a bionic hub design is numerically simulated using finite element analysis and response surface optimization. The results showed that under the optimization of the response surface analytical model, the maximum stress of the optimized bionic hub was 109.34 MPa, compared to 119.77 MPa for the standard hub, representing an 8.7% reduction in maximum stress. The standard hub weighs 34.02 kg, while the optimized hub weight was reduced to 29.89 kg, a decrease of 12.13%. A fatigue analysis on the optimized hub indicated that at a stress of 109.34 MPa, the minimum load cycles were 4.217 × 105 at the connection point with the half-shaft, meeting the fatigue life requirements for commercial vehicle hubs outlined in the national standard GB/T 5334-2021.

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蜂窝结构轮毂的仿生优化设计与疲劳寿命预测
轮毂是车轮的重要组成部分,良好的轮毂设计能显著提高车辆的操控性、稳定性和制动性能,确保行车安全。本文通过形态学方面对轮毂结构进行了优化,其中减轻轮毂重量有助于提高燃油效率和车辆整体性能。参考蜂窝状结构,利用有限元分析和响应面优化对仿生轮毂设计进行了数值模拟。结果表明,在响应面分析模型的优化下,优化仿生轮毂的最大应力为 109.34 兆帕,而标准轮毂的最大应力为 119.77 兆帕,最大应力降低了 8.7%。标准轮毂重 34.02 千克,而优化后的轮毂重量减少到 29.89 千克,减少了 12.13%。对优化轮毂进行的疲劳分析表明,在应力为 109.34 兆帕时,与半轴连接点的最小载荷循环次数为 4.217 × 105,满足国家标准 GB/T 5334-2021 中对商用车轮毂疲劳寿命的要求。
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来源期刊
Biomimetics
Biomimetics Biochemistry, Genetics and Molecular Biology-Biotechnology
CiteScore
3.50
自引率
11.10%
发文量
189
审稿时长
11 weeks
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