Study on the modal behaviour of contactless 11R22.5 truck tyre

6th ModTech International Conference - Modern Technologies in Industrial Engineering

Moisescu, R.^1 ; Anghelache, G.^1

University Politehnica of Bucharest, Automotive Engineering Department, Splaiul Independenei, No. 313, Bucharest

060042, Romania^1

关键词: Component materials;    Experimental investigations;    Frequency Analysis;    Impact hammers;    Inflation pressures;    Radial vibrations;    Real properties;    Vehicle manufacturers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/400/4/042040/pdf
DOI  :  10.1088/1757-899X/400/4/042040

来源: IOP

【 摘 要 】

The study of tyre vibration represents a field of interest for tyre and vehicle manufacturers, with respect to automotive comfort, rolling noise and safety, also concerning influences on ABS performance, as well as regarding the durability of vehicles, tyres and road. The study of tyre modal behaviour has been performed on an 11R22.5 truck tyre, both through experiments using the impact hammer method and through finite element analysis. The current paper focuses on the investigation of radial vibration modes for truck tyre without road contact. The model of the truck tyre has been elaborated and used for investigation of modal behaviour at different inflation pressures, and the natural frequencies for radial vibrations have been obtained, as well as the corresponding mode shapes. Experiments have been performed on an 11R22.5 truck tyre without road contact, mounted on the corresponding rim, separately from the vehicle. The impact hammer method has been used for obtaining the tyre natural frequencies corresponding to radial vibrations, through frequency analysis of acceleration measured on the tyre tread. The tyre natural frequencies obtained from the finite element analyses have been compared to the results of measurements and acceptable similarities have been ascertained. The differences can be explained by the fact that real properties for component materials of tyre finite element model have not been available, but also by the method of supporting the tested wheel. The experimental investigation of tyre modal behaviour contributed to partial validation of the finite element model, but further research is required to improve the finite element model.