Research On The Lightweight Steel Wheels Of A Special Vehicle

With the rapid development of automobile industry,cars have become an indispensable part of people to work in the life,the surge in the number of cars,the resulting energy consumption,environmental pollution and other issues also gradually aroused people's attention,looking for solutions in the process of gradually found the car lightweight is an effective means,by reducing the weight of the body,reduce the fuel consumption of the car,at the same time reduce the emissions of carbon dioxide and other emissions.In this paper,the steel wheel of a special vehicle is taken as the research object and lightweight as the research object.The finite element analysis software ANSYS workbench is used for the finite element analysis of steel wheel,and the optimization scheme is put forward.The feasibility of the scheme is verified through experiments.1.Wheel structure was designed according to the wheel model,choose the bolt connection of open type steel tubeless wheel structure,rational utilization of the outer rim concave Angle crevice seal ring installation meet the sealing requirements and help to avoid because the problem of processing on the wheel disk impact strength,body and big wheel spokes board uses B500 CL cold into steel material and for the rest of the mild steel Q355 B.2.According to the design of wheel structure,the impact is not big to omit part of the wheels of simplified and loading shaft flange,bolt assembly after application of solidworks software 3D parameterized modeling,and the model into finite element analysis software,based on the parameter model using tetrahedron grid area,finite element model is established.3.The vibration characteristics of the assembly should be understood before the fatigue simulation test,so as to avoid the occurrence of resonance and understand its response to excitation.To obtain relatively accurate analysis results,according to the actual working condition to the model,design model of the first six order natural frequency calculation,get the corresponding vibration mode histograms and formations,through analysis concluded that the structure will not rigid motion and resonance occurs,therefore,in the analysis of the strength of the subsequent you just need to do static analysis.4.According to the requirements of the national standard,radial fatigue simulation experiment was carried out,and the radial load stress cloud diagram and strain displacement cloud diagram were obtained,from which the conclusion was drawn that there would be no large deformation in the safe range,and the conclusion was drawn from the latter that the position where the maximum displacement occurred.5.According to the requirements of the national standard,the bending fatigue simulation experiment was carried out,and the stress cloud diagram of bending load and strain displacement cloud diagram were obtained.From the former,it was concluded that there would be no large deformation in the safe range,while from the latter,it was concluded where the maximum displacement occurred,and the fatigue life was analyzed,indicating that there was still room for further optimization.6.The multi-objective optimization of the wheel was carried out,and the optimized design was tested and verified.The verification results showed that the fatigue life and other indexes met the requirements under the premise of reducing the wheel weight.