International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 03 | Mar -2017
p-ISSN: 2395-0072
www.irjet.net
DESIGN OF GEAR FOR HG13 GEAR BOX USED IN MARINE ENGINE Neha Pawar1, Shweta Khankal2, Suraj Lakde3, Rushikesh Jadhav4 2B.E
(Mechannical), Department Of Mechanical Engineering, NBN Sinhgad School Of Engineering, Pune, India.
3B.E
(Mechannical), Department Of Mechanical Engineering, NBN Sinhgad School Of Engineering, Pune, India.
4B.E
(Mechannical), Department Of Mechanical Engineering, NBN Sinhgad School Of Engineering, Pune, India. 5B.E (Mechannical), Department Of Mechanical Engineering, NBN Sinhgad School Of Engineering, Pune, India.
---------------------------------------------------------------------***--------------------------------------------------------------------Abstract - Marine engines are generally used for heavy duty application, so need to be taken care during the development of prototype in best way. Marine engines are operated at very high speed so large stresses and deflections in the gear as well as in other rotating component are produced. The stresses and deflections should be reduced for the safe functioning of engine. For this work, structural analysis on a high speed helical gear in marine engines, have been carried out. Theoretical methods are generally used for arrival of dimensions. The deflection of the tooth and dimensions have been analyzed for different material. Finally the results obtained by theoretical method and finite element analysis are compared to check the correctness. A conclusion has been arrived on the material which is best suited. Basically the project involves the design, modeling and manufacturing of helical gears for marine application. Main aim of this design is reduction of weight and producing high accuracy gears. Generally, this type of gear box is used in fishing boat in which marine engine is used. It requires high load carrying capacity, strength, torque and it should operated efficiently. There are various types of engines are available which are ranges from 220HP to 500HP and for this engine 12 to 13 types of gear box are available. We are going to design the gear box for 260HP engine and then analysis to check the performance of engine. Keywords-
Marine,
Strength,
Torque,
through a gear ratio and thus may be considered a simple machine. Gear device can change the speed, magnitude and direction of power source. When two gears of unequal number of teeth are combined, mechanical advantage is produced with both the rotational speeds and the torques of two gears differentiating in a simple relationship. Marine engine are among heavy duty machineries, which need to be taken care in best way during prototype development stages. These engines are operated at very high speeds which induce large stresses and deflections in the gears as well as in other rotating component. For the safe functioning of engine, these stresses and deflection have to minimize. In this work, structural analysis on a high speed helical gear used in marine engine have been carried out. Objective :Our aim in this project is to design Gear train for HG 13 gearbox which should not be fail at high speed and high load. For fishing, boats need to stay longer time in the sea so our aim is to operate marine engine efficiently and smooth for different condition, and increases its working life 1.1 Working of gear train:-
Stresses,
Deflection. 1. INTRODUCTION The basic operational requirement for a marine gearbox system is to transmit the torque over the required range of speeds. In the present work we have design a gear train system which has to transmit a power of 260 HP and 2000 RPM. A gear is rotating machine part having cut teeth, which mesh with another tooth part in order to transmit torque. Two or more gears working in tandem are called transmission and can produced a mechanical advantage Š 2017, IRJET
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Impact Factor value: 5.181
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Fig1:- Gear train
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