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Rubbers are widely used in many engineering applications such as tubes, timing belt, tires etc. Apart from its functional use, it can also be used as damping material in many applications in order to dampen the vibrations transmitted from one structure to another. The present research work focuses on the development of Graphene filled (CB) Styrene-Butadiene Rubber (SBR) and its performances are compared with Carbon Black (CB) filled SBR. Both of these rubber samples were investigated for its mechanical properties such as hardness and tensile strength. Experimental modal analysis (EMA) was also carried out to examine the dynamic characteristics such as damping and natural frequency along with its mode shapes for the prepared samples and compared. It is observed from the results that the inclusion of graphene in SBR improved its vibrational characteristics in addition to the improvement of mechanical properties.

The present work aims at investigating the tribological behavior of a newly developed friction materials and its performance is compared with the commercial brake pad under dry sliding conditions. The friction materials were made in the form of cylindrical pin from three different solid lubricants - graphite, molybdenum disulfide (MoS2) and graphene - keeping the other ingredients fixed. The prepared seven samples (BP01- Graphite, BP02- MoS2, BP03- Graphite &MoS2, BP04- Graphene, BP05- Graphene & Graphite, BP06 - Graphene & MoS2, BP07 - Graphene, Graphite & MoS2) were tested in pin and disc machine and compared to investigate the coefficient of friction, wear resistance followed by hardness test and thermal degradation analysis. The results showed that the wear loss and coefficient of friction of the developed friction materials were strongly influenced by the type and percentage of solid lubricants.

Aerodynamics is the study of the effects of air when in motion. The vehicle aerodynamics have become crucial since have realized its importance. This study has been focused on optimizing the aerodynamics with means of adding external aerodynamic component. A custom built multi-axle commercial vehicle (CV) model is subjected to aerodynamic modification and optimized. The components are modified to their optimum size, angle and shape to achieve the best to reduce the drag coefficient, and enhance better performance. The physical appearance of the custom built multi-axle commercial vehicle model has been given keen significance while designing the external devices. All the analysis and modifications have been tried out computationally in the CFD software “ANSYS Fluent” and the CAD modeling in “Creo Parametric”.

Laser welding process is a most effective and predominant method for joining of steel alloys when compared with other welding processes in practice due to their precise control of laser source across the bonding zone where it is crucial to control in other joining processes. In common the austenitic steels differ from ferritic based on two factors, thermal conductivity and expansion. Here, the selected Nd-YAG laser setup for joining of similar base material stainless steel 316 which is reinforced with and without stellite 6 powders. The experimental investigations (metallurgical survey and wear characteristics) were performed on all the samples. The powders were reinforced in the material directly by performing a drill across the bond line instead of a normal coating process which is in practice, later the powders were stuffed through the holes.