Finite Element Analysis And Lightweight Design For The Motorcycle Wheel Based On Radial Impact Test

CAE technology is widely applied in mechanical industry along with the development of computer technology. For A-alloy wheel is the important part of motorcycle. Motorcycle wheel CAE method, which is based on the finite element method, catches people's attention more, and there have been great achievements in the domain domestically and oversea. Based on the investigation of the related domestic and overseas research in the domain, the finite element model of motorcycle wheel is established, radial fatigue static analysis and radial impact intensity analysis is carried on. Analysis results indicate that the motorcycle wheel's structure has some space to optimize, which provides evidence and consult for lightweight:â‘ Firstly, we using ANSYS software to simulation the radial fatigue test and analyze the stress. The simulation procedure include the establishment of model, definition of material properties, the boundary conditions, loading and solving. The stress results show that the maximum stress is 46.75 MPa, in the rounded angle between center section and spoke. The maximum stress does not exceed the allowable stress 181.8 MPa, and the stress is low in the radial fatigue test;â‘¡Secondly, on the basis of the theory-numerical simulation technology for the radial impact test, we using ANSYS/LS-DYNA software to simulation the impacting process and analyze the stress. In the finite element numerical simulation of impact, the finite element models established, including impact block, wheel and tire, considering the complex contact between tire and impact and the contact between tire and wheel, using the explicit algorithm to finish the simulation. Though this model, we can obtain that the maximum stress is 133MPa, in the rounded angle between rim and spoke. The maximum stress does not exceed the allowable stress 181.8 MPa, and the stress is low in the radial impact test.â‘¢Furthermore, based on the analytic result,we redesign the wheel to make it weight saving;â‘£Finally, analyzes the structure of new wheel using ANSYS and ANSYS/LS-DYNA, the maximum stress is 72.465 MPa in the radial fatigue test and the maximum stress is 156.6MPa.The analytic results show that this new wheel not only meet the required strength, but also improve the material utilization and reduce the quality of the wheel significantly, totally reduced mass was 0.29kg, which was 6.16% of the wheel.Finite element analysis and lightweight research for the wheel based on the radial fatigue test and radial impact test in this paper can not only save materials, shorten the design period, improve the stress ratio and largely reduce design expense, but also can change the traditional design approach that relies on experiences and guide the research of new motorcycle wheels. It also provides great theoretical significance and project application to motorcycle enterprises.