Structural Analysis Of Aluminum Alloy Wheels Based On The Finite Element

In recent years, with the rapid development of China’s automobile industry and the continuous improvement of people’s quality of life, automobiles, especially cars, has increasingly become one of the fast and integral part of transport in the modern life, it plays an increasingly important role during people’s daily life, consumers pursuit not just the most basic functions of the car, but also higher and higher demands on the car’s overall performance and appearance. Wheel is one of the most important parts of vehicle, it has a direct or indirect impact on automobile about driving comfort, stability, fuel consumption, security, etc., and it even determines the life of the vehicle to some extent.The paper mainly using finite element to have a static and dynamics simulation analysis on a particular model of aluminum alloy wheels, the using ANSYS software to establish a three-dimensional solid model and finite element model of the wheel based on ignorance of the fine structure chamfering, rounding and curve surfaces, simplified the boundary conditions of solving model, to have a respectively analysis about aluminum alloy wheels under a free state and the bound state, taken into account the impact of different material on the calculation results.The results showed the material has little effect on natural frequency about the wheel, chart of the vibration mode exhibited the property of orthogonal, the natural frequency under constraint case is higher than the free vibration case on the same condition; simulated and analyzed both the wheels under the condition of only tire pressure load as well the tire pressure loads and external loads, compared the stress-strain results of the different positions of the wheel contact with the ground.The results showed it has a linear relationship between the stress-strain and the tire pressure imposed to wheel, the maximum stress and the maximum strain of the wheel is not synchronized when different positions of the wheel contacted with the ground, simulated both the aluminum alloy wheels withstand the sub load step radial contact load and bending fatigue load respectively, analyzed the calculation results of the six straight spokes wheel and six curved spokes wheel and seven straight spokes wheel, The calculation results showed that the maximum stress values for the three different structures of the wheel are all within the allowable scope of the material,the maximum deformation of the structure is closely related to the overall stiffness of the spokes.