<div class="section abstract"><div class="htmlview paragraph">The steering knuckle is an essential component in All-Terrain Vehicle (ATV) which withstands alternating loads subjected to different conditions without affecting the vehicle performance. The main objective of the proposed work was to design and analysis the steering knuckle under static conditions to observe stress, total deformation and factor of safety for proposed materials. In this present investigation, Aluminium alloy (AA7075) was chosen as it exhibits good ductility, high strength, toughness and high resistance to withstand impact load. The prime objective of this work was processed under three different conditions like virgin AA7075, AA7075 with T6 heat treatment and AA7075 with T6 heat treatment followed by shot-peening post processed technique was completed and to attain diverse strength of the samples were tested and noted appropriate responses. The secondary objective of our proposed work, an optimum knuckle design was modeled using Solidworks. The proposed materials test values were given as input data to perform static analysis using Ansys workbench by applying constraints and loads such as steering effort, braking torque, cornering force, bumping force and longitudinal load transfer on the developed ATV knuckle design based on calculation. The responses of stress concentration, total deformation and factor of safety were obtained through static analyzed conditions. On comparing AA7075 with T6 heat treated cum shot-peened material properties are higher values and the same as input data set for analyzing the developed design, in which it shows lower deformation value and less stress concentration zone with high factor of safety because of its diverse strengthening with high impact withstand ability of the knuckle. On the whole, this proposed work provides an optimal design approach and selection of suitable post processed material of ATV steering knuckle and to improve traction, vehicle performance due to better weight reduction and long life.</div></div>
Formula vehicles (FSAE) is confronting to increase vehicle performance by reducing the weight of the various components. In consideration of weight, knuckle is one of the serious things to look over it. Steering knuckle is a nonstandard or non-catalog component hooks up with the constraint wishbones, suspension, brake disc and wheel hub. It undergoes alternating loads subjected to different conditions. In this study we aim in reduction of weight in the knuckle with concession in the yield strength. Design a two different type of compact knuckle by using the solidworks software. The compact knuckle also provides desired direction to the vehicle and also reduces the unsprung mass. To make a compact knuckle enrich a rib in less stress areas. The difference in two knuckles is that the length of model 2 knuckle is more. If the length of the knuckle increases the stress acting on upper arm will be less when compared to the model 1. But in consideration of weight based on size model 1 knuckle is less weight without consideration of material. Thus our main aim is using the material with a high strength with less weight comparing with the commercial knuckle material. In this paper, proposed a two different materials one is Aluminium alloy 7075-T6 has a high yield strength and this is compared to the prepared hybrid composite material by which the material is prepared by adding 5wt%SiC and 3wt%Gr with Aluminium alloy 7075- T6. By the properties of the two material AA7075-T6 and AA7075- T6 with 5wt%SiC and 3wt%Gr is analysed in the Ansys 16.0 software. By the results through ansys, the stress and deformation is analyzed. By concluding the work by selecting less deformation and stress observed model and material.
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