“Design of viscometer according to Newton’s Law of Viscosity”

Published by (ICMEETS-2014 ISBN No. 978-93-83083-45-9, Maulana Azad National Institute of Technology, Bhopal)
Authors: Dr. Mukesh Bulsara, Harsheel Panchasara, Anuj Shishu and Namarata Italiaya. Published January 29, 2014

In automobile, a lot of energy generated by the engine is lost in the form of heat. Also a lot of wear and tear occurs in the engine due to friction in mating parts. To avoid this lubricant oil is pumped into the system. The function of a lubricant is to reduce the wear and tear and remove the foreign particles from the engine. Viscosity of the oil plays an important role in achieving these functions. Any significant change of an oil viscosity, reduction or increment may damage lubrication film stability and effectiveness, resulting in shorter oil and component lifespan and higher oil consumption decreasing engine performance and reliability. Viscometer is an instrument to measure the viscosity of a fluid at a specific temperature.The parameters used by existing viscometers to calculate the viscosity of the oil complies with the newton’s law of viscosity to a limited extent. The newly developed improved viscometer checks the viscosity of the oil used in automobile engine, by considering the factors directly affecting the viscosity of the oil as stipulated in the Newton’s law of viscosity. An improved design of Viscometer which works on the Newton’s law of viscosity and actually measures the Force F, the Area A, the velocity gradient du/dy and then determines the viscosity µ.

“Design and Finite Element Analysis of Mechanical Screw Jack”

Published by (ICMEETS-2014, ISBN No. 978-93-83083-45-9,Maulana Azad National Institute of Technology, Bhopal.)
Authors: Prof. F.R.Malek and Harsheel Panchasara. Published January 29, 2014

The paper’s purpose is to analysis the stresses and strains state in the structure of a mechanical screw jack, and it is subjected to the loading under static conditions, when the screw jack is at rest on the floor and lifting the weight. The analysis of the stresses and strains state of the structure of a mechanical screw jack for increasing its solidity in exploitation is made using the calculation software with finite elements Pro-Mechanical. The research performed allows the evaluation of the stresses state, pointing out the critical areas and measures which are imposed in order to increase the solidity and bearing capacity of the structure for the mechanical screw jack. The results we have obtained allowed us to make up a study about the dimension optimization of the structure in order to design the mechanical screw jack. Thus, the material use could be reduced without exceeding the limits of the most appropriate resistance.

“Design Optimization of Mechanical Screw Jack”

Published by (International Journal of Futuristic Trends in Engg. and Technology, ISSN: 2348-5264, Vol. 1(06),2014)
Authors: Prof. F.R.Malek and Harsheel Panchasara. Published July 30, 2014

The paper consists of shape optimization analysis of mechanical screw jack with the lifting capacity of 4 KN, total lifting height of 235mm and span is 75mm, and it is subjected to the loading under static conditions, when the screw jack is at rest on the floor and lifting the weight. Mechanical screw jack is very widely used in high volume applications such as car jack, floor jack or garage jack which lifts vehicles so that maintenance can be performed. Mechanical screw jack must be strong enough to lift the weight of carrying load and also somewhat flexible in order to sustain the shock and tension caused by lifting the load. So that one of the most important steps in redesign of mechanical screw jack is a stress analysis and optimization. In order to get higher productivity in manufacturing industries, applications of optimization techniques in metal cutting processes is most beneficial for a production unit to produce quality product in the market. The efforts required in achieving the desired output can be effectively and economically be decreased by the implementation of better designs. It is essential to determine stresses in local areas and other areas using three dimensional, symmetric and axisymmetric models, the preliminary conclusion is that finite element analysis is an extremely powerful tool for design and optimization of mechanical screw jack. In this study the optimization is accomplished by finite element and optimization study package Pro-Mechanica. The research performed allows the evaluation of the stresses state, pointing out the critical areas and measures which are imposed in order to increase the toughness of the power structure for the mechanical screw jack. The result obtained allowed us to make up a study about the dimension optimization of the structure in order to redesign the mechanical screw jack. Thus, the material, man and machine resources used could be reduced without more than the limits of the most suitable conflicts. The actual condition effect on jack was evaluated by response optimization study. It is observed that for optimal results, 5% of mass reduction of the mechanical screw jack was obtained.