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Design, Modelling and Analysis of A 3 Stage Epicyclic Planetary Reduction Gear Unit of A Flight Vehicle

K Akhila1 and M Amarnath Reddy2
1.M.Tech Student, Department of Mechanical Engineering, Mallareddy College of Engineering & Technology, Jawaharlal Nehru Technological University, Hyderabad, India.
2.Associate Professor, Department of Mechanical Engineering, Mallareddy College of Engineering & Technology, Jawaharlal Nehru Technological University, Hyderabad, India.

Abstract—In this project, a three stage epicyclic planetary reduction gear unit is designed to meet the output specifications. All the components are modelled in CATIA to check the assembly and the interference. The modelled components are used for analysis to check for their strength. Heavy vehicles consists of four control surfaces for steering and stabilization purpose. The control surface are to be rotated depending upon the requirement of the system. This rotation of control system is achieved through actuators. Actuators can be of different types. They are pneumatic, hydraulic and electro-mechanical. In the present project, we use electro mechanical actuators. Electro-mechanical actuators basically consists of prime mover, motor and transmission mechanism. This transmission system can be screw type or gears type. In this project, we use gear type of transmission system, which is designed depending upon the requirement. Generally motor rotates with very high speed and low torque. But the final requirement is “low speed and high torque”. This is achieved by connecting a reduction gear unit which reduces the speed and increases the torque. Planetary gear is one of the epicyclic gear, which is a gear system consisting of One or more outer gears, or planet gears, revolving about a central, or sun gear. And it can be wildly used in industry, such as printing lathe, automation assembly, and semiconductor equipment and automation system since its commercial value. Our project is aimed to build a 3D model of multiple layers of planetary gear by Using Catia software.

Index Terms—Epicyclic planetary reduction, CATIA software, Actuators

Cite: K Akhila and M Amarnath Reddy, "Design, Modelling and Analysis of A 3 Stage Epicyclic Planetary Reduction Gear Unit of A Flight Vehicle," International Journal of Mechanical Engineering and Robotics Research, Vol.3, No.4, pp. 658-666, October 2014.