M Bhargavi’s scientific contributions

Additive manufacturing/Rapid prototyping is one of the emerging areas in the field of Mechanical Engineering. 3D printing is also known as additive manufacturing. It is a latest and interesting technology used for developing a 3- dimensional solid object from a digital model. Fused Deposition Modeling (FDM) is one of the additive manufacturing techniques used with three linear axes for producing components. A two link (revolute) manipulator consists of two joints separated in space by the links. It provides planned trajectory by programming and relationships between joint variables. The idea of the present paper is to replace and analyze the three mutually perpendicular linear axes of FDM with two link (revolute) manipulator. The complete dimensional, mass data along with the maximum size of the manufacturing component and work volume are selected from the existing FDM. Two link (Revolute) manipulator, work volume and nozzle are modeled in Computer Aided Design (CAD) software. The results have shown that the proposed two link (Revolute) manipulator is used to reduce the number of motors involved in the existing FDM.

The present work is about designing a helical axis wind Turbine and testing its performance of both numerical and static structural analysis. NACA 0018 symmetric aerofoil is used as a turbine blade to modelling the vertical 3 bladed axis wind turbine rotor is tilted to an angle of 60 degrees, so as to get better performance of turbine. This paper deals, Numerical investigation of Helical Axis Wind Turbine (HAWT) with three blades has been carried out by means of both the numerical simulation and static structural analysis. The turbine performance can be observed by the span wise pressure distribution and velocity distribution, stress distribution and also observed that HAWT generated a power, which is an average power output incremental of 6.75 percent than precedes.

Golf ball ideal plan has been considered for over a century. Generally, golf balls move at long-distance and high speed. Dimples golf ball have a fundamental impact by streamlined flow properties and also the flight heading. Streamlined highlights the golf ball where it was still incomplete in the appearance of an essential interior information. In the present paper we designed a golf ball and subsonic in-compressible flow analysis is conducted at a speed of 210 m/s, Now, the golf ball drag coefficient is changed because of change in geometry(dimple). In this paper, the results specify depth ratio of dimple increasing or golf ball roughness of surface can move the change to a lesser Reynold’s number and drag coefficient valve regime increases and also it gives an optimistic linear process between relative roughness and drag coefficient.