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Typically, during a braking maneuver vehicle converts kinetic energy into heat energy. Heat energy thus generated must be dissipated in order to prevent brake overheating. One of the primary factors influencing the temperature of brake components is the amount of ventilation in wheel covers. The objective of this paper is to study the impact on temperature of brake discs and pads by varying ventilation area of wheel cover in Brake Dynamometer. The methodology focuses on collecting objective data in different vehicle models with multiple wheel cover designs. The results are analyzed to study the trend of brake disc and pad temperature with respect to ventilated area of wheel cover. The present work is further correlated with different segment wheel sizes and steel and alloy wheel.

Hardened steel is the majorly used raw material for automotive components. In spite of its abundance, its application is limited due to low fatigue life in dynamic loading. Shot peening is one of the identified processes to improve the fatigue life of the ductile steel by inducing the work hardening & surface improvement. The process of shot peening involves the bombardment of shots on the component surface. As the process & technique, the shot size selection plays very important role in the fatigue life improvement as it alters the results substantially. Also during the process, shot size decreases due to the normal wear of the shots after hitting the component surface. As a result, there is always a ratio of various sizes of the shots involved in the process. Therefore it becomes imperative to control the shot size ratio for obtaining the required work hardening & possible fatigue life improvement.