Design and Analysis of a Composite Blade for Ram Air Turbine (RAT)

Basava Prasad, SN and Veera Sesha Kumar, C and Karunakara, S (2012) Design and Analysis of a Composite Blade for Ram Air Turbine (RAT). In: National Conference on Developments and Opportunities in Civil Engineering, Applied Sciences And Mechanical Engineering , 18th -19th May, 2012, East West Institute of Technology.

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Safety has always been a major concern in aircrafts. In spite of extreme care in aviation, accidents do occur, no matter how reliable the machinery or the pilot. In the event of fuel exhaustion, neither the engine nor the APU can help the aircraft for controlled landing. To solve this problem, large commercial aircraft are equipped with Ram Air Turbine (RAT). A RAT is a small, wind turbine like device that is deployed into the air stream when the main and auxiliary power sources fail. In the present work, an attempt is being made to design and analyze a turbine blade for a Ram Air Turbine for a typical 100 seater passenger aircraft. A RAT with a rotor diameter of 24 inches and 20 kW power rating is being considered in this project. The turbine rotor of a RAT system typically runs at 3000 rpm and will be subjected to heavy centrifugal loads and out-of-plane bending loads. Since weight is a serious concern for flying structures, CFRP Composite has been selected for the blade material. CFRP Composites provide very high specific strength and stiffness and result in much lighter structures.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Fiber Lay-up Design, Structural Analysis, RAT Blade, Composite
Subjects: AERONAUTICS > Aircraft Propulsion and Power
ENGINEERING > Mechanical Engineering
Depositing User: C Veera Sesha Kumar
Date Deposited: 21 May 2014 06:11
Last Modified: 21 May 2014 06:11

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