International Research Journal of Engineering and Technology Volume: 04 Issue: 02 | Feb -2017
(IRJET)
www.irjet.net
e-ISSN: 2395 -0056 p-ISSN: 2395-0072
Modeling and Analysis of Car Wheel Gamachisa Mitiku Tadesse
Department of Mechanical Engineering, Asst Lecturer Bule hora University, Ethiopia ---------------------------------------------------------------------------***---------------------------------------------------------------------------------
ABSTRACT: - The automotive industry is a significant lifeline of the country’s economic activity. About 90 per cent of vehicles are owned and operated by individual operators. A large majority of the four wheelers are constructed by units in semi-organized / organized sectors spread over the country. There is considerable scope to improve the design of their products. There are different types of wheels bodies available such as Steel, Aluminum, Magnesium, Titanium, etc. In Regular commercial vehicles steel wheels are generally used. For steel corrosive resistance, thermal conductivity, weight, casting and machining properties are low compared to aluminum alloy. In the design of automobile, the industries are using aluminum alloy material in order to obtain reduction of weight without significant decrease in vehicle quality and reliability. This is due to the fact that the reduction of weight of a vehicle directly impacts its fuel consumption. With this concept of reducing weight and stress reduction the wheel is modeled and analyzed. In this project, Aluminum alloy is compared with steel. In this project a parametric model is designed for steel wheel from existing model. The wheel model is modeled in CAD package CATIA and Static structural, Modal and Fatigue analysis are done in FEA package ANSYS WORKBENCH for Steel and Aluminum Alloy A356.2 materials. By conducting the Finite Element Analysis on the wheel Model the results of Steel and Aluminum Alloy wheel were presented. Š 2017, IRJET
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Impact Factor value: 5.181
When compared Aluminum alloy wheel has better results than Steel wheel. Introduction The work observed that a fatigue lifetime prediction method of Aluminum alloy wheels was proposed to ensure their durability at the initial design stage. To simulate the rotary fatigue test, static load FEM model was built using ABAQUS. The analysis results showed that the maximum stress area was located in the hub bolt whole area agreed with the fact. Therefore, the finite element model can achieve results consistent with that obtained from the actual static load test [1]. The fatigue lifetime prediction method of alloy wheels was proposed to ensure their durability at the initial design stage. To simulate the rotary fatigue test, static load FEM model was built using COSMOS. The analysis results showed that the maximum stress area was located in the hub bolt whole area agreed with the fact. Therefore, the finite element model can achieve results consistent with that obtained from the actual static load test. The nominal stress method was used to predict the fatigue life of alloy wheels. In the nominal stress method, the fatigue life of alloy wheels was predicted by using alloy wheel S-N curve and equivalent stress amplitude. The simulation result showed that baseline design fatigue life was lower than. After improving the weakness area of alloy wheels, the improved wheel life cycle exceeded 1*105 and satisfied the design requirement [2] .CAD model of the wheel rim is generated in CATIA and this model is imported to ANSYS for processing work. An amount of pressure 200 kpa is applied along the circumference of the wheel rims made of both Aluminum and forged steel and bolt circle of wheel rim is fixed [3]. Static and fatigue analysis of Aluminum alloy wheel A356.2 was carried out using FEA package. The 3 dimensional model of the wheel was designed using CATIA. Then the 3-D model was imported into ANSYS using the IGES format. The finite element idealization of this modal was then produced using the 10 node tetrahedron solid element. The analysis was performed in a static condition. This is constrained in all degree of freedom at the PCD and hub portion. The pressure is applied on the rim. Their results obtained are total deformation, alternative stress and shear stress by using FEA software. And also they find out the life, safety factor
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