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Fatigue Analysis of Automative Steering Knucle

Madhusudhanan S., Arun Kumar K., Praveen Kumar V., Mahendran T.

Mechanics and Mechanical Engineering

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2016

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Vol. 20, nr 1

5--13

EN

Steering knuckle plays a vital role in automobile which connects the suspension, steering part, wheel hub and brake to the chassis. During its working, it subjected to various loading conditions. so, it requires high accuracy,, quality, and durability. The main theme of this work is to access the fatigue performance of a steering knuckle. This can be performed by a detailed load analysis. Therefore, this study requires two steps. First part of the study involves modeling of the steering knuckle with the design parameters using the latest modeling software CATIA and the second part involves in fatigue analysis using ANSYS WORKBENCH. This provides us to improve the overall knowledge about the component.

2

Obliczenia wytrzymałościowe zwrotnicy metodą elementów skończonych

Rola E.

Mechanik

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2015

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R. 88, nr 11

886--889

PL

Przedmiotem pracy jest analiza wytrzymałościowa zwrotnicy pojazdu startującego w zawodach, w których rywalizacja polega na minimalizacji zużycia paliwa. W oparciu o siły reakcji podłoża wyznaczono obciążenia w układzie kierowniczym. Obliczenia przeprowadzono w dwóch przypadkach – podczas działania maksymalnej siły hamującej oraz maksymalnej siły bocznej. W programie NX 7.5 wykonano model 3D zwrotnicy. Następnie przeprowadzono obliczenia metodą elementów skończonych w programie ANSYS Workbench. Zastosowano połączenia kontaktowe, co było powodem nieliniowości analizy. Podstawą obliczeń był trapez mechanizmu zwrotniczego położonego za osią przednią pojazdu. Dokonano modyfikacji, aby model spełniał wymagania wytrzymałościowe.

EN

The study is concerned with examination of the strength structure of steering knuckle in the vehicle competing for the least fuel consumption prize, (highest fuel efficiency). The loads acting on the steering system were determined with reference to the ground reaction forces. Suitable calculations were performed in relation to each of the two situations; first – under action of the maximum braking force and secondly – under action of the maximum side force. A 3D model of the steering knuckle was made in the NX 7.5 software. Finite element method calculations were performed in Ansys Workbench. Contact joints were applied which effected in non-linearity of the work results. Calculations were performed with reference to the linkage trapezoid located behind the vehicle front axis. Modifications were introduced to make the model to satisfy the strength requirements

3

Modelling of non-symmetrical side-extrusion in preparation of steering knuckle preform

Kowalski M., Marszałek K., Sińczak J.

Archives of Materials Science and Engineering

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2009

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Vol. 39, nr 2

121-124

EN

Purpose: The conventional forging of steering knuckle makes many problems such as: creation of material defects, high force of process, low charge yield. The aim of research was optimization of preform shape for extrusion of steering knuckle. Design/methodology/approach: Problem was analyzed using Qform3D code based on the finite element method. Findings: As results of calculations the distributions of stress, strain, strain intensity and temperature were obtained. Besides, the total force of process was calculated. Research limitations/implications: In future the verification of numerical results should be performed by technological tests. Practical implications: The numerical investigations were made for real automotive part. The results can be used in real production process. Originality/value: The new technology of production of steering knuckle was proposed.