Studying the Fatigue Life of a Non-pneumatic Wheel by Using Finite-Life Design for Life Prediction

IF 1.2 4区工程技术 Q3 ENGINEERING, MECHANICAL

Strojniski Vestnik-Journal of Mechanical Engineering Pub Date : 2018-01-17 DOI:10.5545/sv-jme.2017.4695

Zhen Xiao, Qun Zhao, Fen Lin, Mingmin Zhu, Jinlian Deng

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引用次数: 18

Abstract

To avoid pneumatic tire puncture, blow-out and other problems, a new type of non-pneumatic safety wheel called the mechanical elastic wheel (ME-Wheel) has been developed and investigated. The durability of the ME-Wheel is studied to improve its life; at the same time, the best preventive maintenance period can also be provided for the users, to ensure the safety and reliability of the ME-Wheel in operating conditions. The finite-life design method is proposed to predict the ME-Wheel life; the weakest component of ME-Wheel is ascertained by analysing its structure static strength, and the predicted model of pin for lifetime theory is established by using finite-life design method. Furthermore, the ME-Wheel durability is simulated using the finite element method (FEM) on the basis of the established virtual proving ground, and the enhancement coefficient is combined to calculate ME-Wheel lifespan. Finally, the results of theoretical calculation and simulation are verified using endurable road testing. The results show that the methods of theoretical calculation and simulation, which are applied in our paper to predict the lifespan of ME-Wheel, are highly congruent with the experimental results. Therefore, the proposed method is also entirely suitable for other mechanical structures in the durability research field.

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用有限寿命设计预测非气动车轮的疲劳寿命

为了避免充气轮胎穿孔、爆胎等问题，研制了一种新型的非充气安全轮——机械弹性轮(ME-Wheel)。为提高ME-Wheel的使用寿命，对其耐久性进行了研究;同时，还可以为用户提供最佳的预防性维护期，确保ME-Wheel在运行状态下的安全性和可靠性。提出了预测ME-Wheel寿命的有限寿命设计方法;通过对ME-Wheel结构静强度的分析，确定了ME-Wheel的最弱构件，并采用有限寿命设计方法建立了寿命理论的销预测模型。在建立虚拟试验场的基础上，采用有限元法对ME-Wheel进行了耐久性仿真，并结合增强系数计算ME-Wheel的寿命。最后，通过耐久性道路试验对理论计算和仿真结果进行了验证。结果表明，本文所采用的ME-Wheel寿命预测的理论计算和仿真方法与试验结果吻合较好。因此，所提出的方法也完全适用于其他机械结构耐久性研究领域。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Strojniski Vestnik-Journal of Mechanical Engineering 工程技术-工程：机械

CiteScore

3.00

自引率

17.60%

发文量

审稿时长

4.1 months

期刊介绍： The international journal publishes original and (mini)review articles covering the concepts of materials science, mechanics, kinematics, thermodynamics, energy and environment, mechatronics and robotics, fluid mechanics, tribology, cybernetics, industrial engineering and structural analysis. The journal follows new trends and progress proven practice in the mechanical engineering and also in the closely related sciences as are electrical, civil and process engineering, medicine, microbiology, ecology, agriculture, transport systems, aviation, and others, thus creating a unique forum for interdisciplinary or multidisciplinary dialogue.