Benefits of magnesium wheels for consumer cars

8th International Scientific Colloquium on Modelling for Materials Processing

Frishfelds, Vilnis^1 ; Timuhins, Andrejs^1 ; Bethers, Uldis^1

Faculty of Physics and Mathematics, University of Latvia, Zellu 25, Riga

LV-1002, Latvia^1

关键词: Anti blocking systems;    Braking distance;    Energy of vibration;    Magnesium wheels;    Mechanical model;    Quarter car model;    Racing cars;    Strength/weight ratio;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/355/1/012023/pdf
DOI  :  10.1088/1757-899X/355/1/012023

来源: IOP

【 摘 要 】

Advantages and disadvantages of magnesium wheels are considered based on a mechanical model of a car. Magnesium wheels are usually applied to racing cars as they provide slightly better strength/weight ratio than aluminum alloys. Do they provide notable benefits also for the everyday user when the car speeds do not exceed allowed speed limit? Distinct properties of magnesium rims are discussed. Apart from lighter weight of magnesium alloys, they are also good in dissipating the energy of vibrations. The role of energy dissipation in the rim of a wheel is estimated by a quarter car model. Improvements to safety by using the magnesium wheels are considered. Braking distance and responsiveness of the car is studied both with and without using an Anti Blocking System (ABS). Influence of rim weight on various handling parameters of the car is quantitatively tested.