Influence Analysis of Machining and Installation Errors on the Radial Stiffness of a Non-Pneumatic Mechanical Elastic Wheel

Machining and installation errors are unavoidable in mechanical structures. However, the effect of errors on radial stiffness of the mechanical elastic wheel (ME-Wheel) is not considered in previous studies. To this end, the interval mathematical model and interval finite element model of the ME-Whe...

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Bibliographic Details
Published in:Chinese journal of mechanical engineering 2018-12, Vol.31 (1), p.84-92, Article 68
Main Authors: Zhao, You-Qun, Xiao, Zhen, Lin, Fen, Zhu, Ming-Min, Deng, Yao-Ji
Format: Article
Language:English
Subjects:
Advanced Transportation Equipment
Algorithms
Dynamic characteristics
Electrical Machines and Networks
Electronics and Microelectronics
Engineering
Engineering Thermodynamics
Finite element method
Heat and Mass Transfer
Instrumentation
Machines
Machining
Manufacturing
Mathematical analysis
Mathematical models
Mechanical Engineering
Original Article
Parametric analysis
Power Electronics
Processes
Stiffness
Theoretical and Applied Mechanics
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Summary:Machining and installation errors are unavoidable in mechanical structures. However, the effect of errors on radial stiffness of the mechanical elastic wheel (ME-Wheel) is not considered in previous studies. To this end, the interval mathematical model and interval finite element model of the ME-Wheel were both established and compared with bench test results. The intercomparison of the influence of the machining and installation errors on the ME-Wheel radial stiffness revealed good consistency among the interval mathematical analysis, interval finite element simulation, and bench test results. Within the interval range of the ME-Wheel machining and installation errors, parametric analysis of the combined elastic rings was performed at different initial radial rigidity values. The results showed that the initial radial stiffness of the flexible tire body significantly influenced the ME-Wheel radial stiffness, and the inverse relationship between the hinge unit length or suspension hub and the radial stiffness was nonlinear. The radial stiffness of the ME-Wheel is predicted by using the interval algorithm for the first time, and the regularity of the radial stiffness between the error and the load on the ME-Wheel is studied, which will lay the foundation for the exact study of the ME-Wheel dynamic characteristics in the future.
ISSN:1000-9345
2192-8258
DOI:10.1186/s10033-018-0273-y