Krishanu Gupta
National Institute of Technology, Agartala, Mechanical Engineering, Department Member
- NIT Silchar, Mechanical Engineering, Graduate Studentadd
- Krishanu Gupta currently works at the National Institute of Technology, Agartala, INDIA, as Assistant Registrar. Kris... moreKrishanu Gupta currently works at the National Institute of Technology, Agartala, INDIA, as Assistant Registrar. Krishanu also does research in machine design related fields in the Mechanical Engineering Department of National Institute of Technology Agartala as a Research Scholar (part-time).edit
Inconel 625 is a super alloy that has excellent thermal and mechanical properties but is arduous to machine with conventional machining processes due to high melting point and hardness. Wire Electro Discharge machining, that have been an... more
Inconel 625 is a super alloy that has excellent thermal and mechanical properties but is arduous to machine with conventional machining processes due to high melting point and hardness. Wire Electro Discharge machining, that have been an avowed unconventional process of machining that is mainly applied for the machining of tough and hard materials such as Inconel 625. An attempt, in this article, have been made to optimize the WEDM process parameters like servo voltage, peak current, spark-on time, spark-off time while machining on Inconel 625. The study considers Material Removal Rate (MRR) and Surface Roughness (SR) as performance parameters of machining process. L16 orthogonal array is implemented to design the experiments. Mathematical relations between the response parameters and the input variables are computed using of Response Surface Methodology (RSM). The mathematical models are then employed as a fitness function in the Multi-objective Grasshopper Optimization Algorithm (...
Research Interests:
Abstract One of the important forms of smart structure available for various applications in engineering fields is Sandwich beams, for the reason that of variable applications, the capability to withstand at variable loading conditions,... more
Abstract One of the important forms of smart structure available for various applications in engineering fields is Sandwich beams, for the reason that of variable applications, the capability to withstand at variable loading conditions, significant elastic retaining properties when in comparison to conventional structures. The basic of the present study is to investigate natural frequency ranges for a type of sandwich beam that has been manufactured using natural rubber (NR) that is indigenously available in Tripura, India, in combination to skin material of aluminium alloy 1050 grade. The present article deals with the study of free vibrational characteristics of cantilever sandwich panels (SwPs) with various skin thicknesses. A mathematical approach had been carried out using a standard platform for validating the results obtained from the analytical method. Also, experimentation had been conducted on sample of sandwich panels using Hammer test process and the natural frequencies of the same were obtained. It was found that the results obtained from the analytical method using a standard platform have been in good agreement with the other approach.
Research Interests:
Research Interests:
The cross-sectional degradation of steel transmission tower members due to corrosion has been one of the major issues in the transmission line system. The degradation of appearance of the material has also been seen because of corrosion.... more
The cross-sectional degradation of steel transmission tower members due to corrosion has been one of the major issues in the transmission line system. The degradation of appearance of the material has also been seen because of corrosion. Therefore, there is a need for a less corrosive and high strength alternate material for transmission towers. It seems in recent years that alternate materials have been needed to replace steel which have low maintenance cost and good resistance to corrosion. The advantages of composite transmission towers are fire resistant, high stiffness, durability, high strength, moderate ductility, rigidity, easy to assemble and economical. The present study has made an effort to evaluate the performance of composite transmission tower. The glass fibre polyamide composite material has been used as a structural material. First, a finite element tower model of 132 KV has been set up in Structural Analysis and Design Software as glass fibre polyamide structural m...
Research Interests:
Research Interests:
Research Interests:
The principle objective of this paper is the comparison study of the static stresses for spur gear with different pressure angles. The analyzed results of a symmetric type involute profiled spur gear pair at different pressure angles are... more
The principle objective of this paper is the comparison study of the static stresses for spur gear with different pressure angles. The analyzed results of a symmetric type involute profiled spur gear pair at different pressure angles are compared. Gears are one of the most important and crucial component in a mechanical power transmission unit and also in most of the industrial rotating machineries. Generally, a spur gear pair in action undergoes two types of stresses: the bending stress and the contact stress. In this paper, both these stresses on the gear tooth pair are analyzed using the finite element analysis and are compared. The stresses on the gear tooth are first analyzed using a finite element software and then those results are validated using the conventional formulae for finding stresses in gear tooth.
Research Interests:
The present study comprises of different types of cored sandwich structures with different core geometries. A combination of materials of skins and cores were considered to investigate the free vibrational or modal behaviour on the core... more
The present study comprises of different types of cored sandwich structures with different core geometries. A combination of materials of skins and cores were considered to investigate the free vibrational or modal behaviour on the core materials and geometries for the structure for illuminating the vibrational aspects for failures. Subsequently, the deformation for sandwich structures with various core geometries and materials was also studied. The objective of the article is to provide an essence of vibrational performance study of aluminium alloy for both skins, and the results were compared among core materials unlike materially configured sandwich structures of honeycomb core. Simulations of mode shapes were obtained using the free vibrational constraints. From this study, it was obtained that, two types of core geometries strictly imply that there is obvious effect of shape of core in sandwich beam vibrational characteristics of structure, as in the study. Lastly, the results obtained by using honeycomb core geometry of certain material was compared to regular rectangular geometrized core and found to have better results in terms of natural frequencies and maximum deformation of the later. Thus, findings may serve as a case for application of similar structures in engineering applications.
Research Interests:
The present investigation is devoted to explore the static stresses developed on gear tooth material at low speed and high torque for two different materials; C45 steel and high density polyethylene (HDPC). Subsequently a 3D spur gear... more
The present investigation is devoted to explore the static stresses developed on gear tooth material at low speed and high torque for two different materials; C45 steel and high density polyethylene (HDPC). Subsequently a 3D spur gear pair is modeled in CATIA work bench and the stresses developed were analyzed using finite element analysis using ANSYS workbench 14.5. The results of bending stress distribution, modal displacement and modal frequencies for the first four modes were finally compared for both cases of the metallic and the HDPE made gear pairs.
Research Interests:
The principal intentions of this paper are geometrical modelling and computational study of different static stresses on spur gears of different materials for an indigenous mechanical solar tracker. The analyzed static stress results of... more
The principal intentions of this paper are geometrical modelling and computational study of different static stresses on spur gears of different materials for an indigenous mechanical solar tracker. The analyzed static stress results of the symmetric type involute profiled gear pair are compared on the basis of the material and the best result is selected for the application in the tracker mechanism. Providing importance on the non-renewable energy sources, solar energy is the major primary source of energy which can satisfy the human needs for the future. Gear operated mechanical Solar Tracking System is cheaper, require less skilled worker, easy to maintain and can be placed at hilly areas, remote or dusty or rainy place to help electrical power deficiency in rural areas and also can be installed easily in educational institutions, big offices, etc., which can save non-renewable sources of electrical energy for future use. The gears are one of the most imperative and crucial component in a mechanical power transmission unit, and its robustness led to the choice as mechanical component in the tracking mechanism. Since, the system is open to environment; therefore, the material selection of the gears becomes an important issue.
Research Interests:
The principle objective of this paper is the comparison study of the static stresses for spur gear with different pressure angles. The analyzed results of a symmetric type involute profiled spur gear pair at different pressure angles are... more
The principle objective of this paper is the comparison study of the static stresses for spur gear with different pressure angles. The analyzed results of a symmetric type involute profiled spur gear pair at different pressure angles are compared. Gears are one of the most important and crucial component in a mechanical power transmission unit and also in most of the industrial rotating machineries. Generally, a spur gear pair in action undergoes two types of stresses: the bending stress and the contact stress. In this paper, both these stresses on the gear tooth pair are analyzed using the finite element analysis and are compared. The stresses on the gear tooth are first analyzed using a finite element software and then those results are validated using the conventional formulae for finding stresses in gear tooth.