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Design Analysis, Weight Reduction & Fatigue Life Prediction of Steering Knuckle Arm Using FEA

, Mr. Kiran S. Bhokare
Published in
Issue: 2
Pages: 1996 - 2001

Automobile components and structures are regularly subjected to cyclic loading and they are consequently prone to fatigue damage. Steering knuckle, being a part of the vehicle’s steering and suspension system, undergoes time-varying loading during its service life. This work shall be consisting of analysing the steering knuckle for the main operating conditions. The Finite Element methodology is adopted to solve the problem while determining the fatigue life of the steering knuckle. The process of validation for this method is sought through the Physical Experimentation for determining stress levels and/or deflection at the designated locations identified using F.E.Modeling. Since the input used for Fatigue is the stress in the component, validation is sought through comparison of this input data. Fatigue life experimentation is usually not feasible since this is a case of high cycle fatigue. In the physical experimentation we will be finding out the graph for stiffness i.e. Load v/s Deflection for the component. The results of Experimental work shall be compared for results with the F.E. Modeling. This paper focuses on optimization of steering knuckle targeting reducing weight as objective function, while not compromising with required strength and stiffness. Taking into consideration static and dynamic load conditions, structural analysis and fatigue analysis were performed. The concurrence of the results shall offer validation for this thesis work

About the journal
JournalInternational Engineering Research Journal (IERJ)
Open AccessYes