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Aircraft Propultion System - AME, B.Tech., Aeronautical & Mechatronics
An aircraft propulsion system comprises an engine and a propeller or a propulsive nozzle which converts motion from an engine and generates thrust. NASA defines the propulsion as a machine that produces thrust to push an object forward. The thrust is generated when the engine is accelerated by gas or any other working fluid which makes the engine produce the force. The thrust generated by the propulsion system, first, is responsible for drag balance of the aircraft when it is cruising. Secondly, thrust from the propulsion system must exceed the drag of the airplane for the airplane to accelerate.
Aircraft propulsion has a wide variety of systems available. The choice depends on the speed or Mach number required and the role for which the aircraft is to be used.
Propulsion technology offers the greatest single contribution to the improvement of cruising economy and the environmental impact of commercial aircraft. The past three generations of gas turbine engines have incorporated increased turbine inlet temperature, increased compressor pressure ratio, increased bypass ratio, improved fan and nacelle performance, reduction of noise and emissions, and improved reliability that led to a continued dominance of the world commercial aircraft market. This pace of development in new engine technologies, together with advances in engine-airframe integration, can, with adequate support from industry and the National Aeronautics and Space Administration (NASA), be continued over the next 10 to 20 years, thus providing superior propulsion systems entering service.
These gains rest, of course, on continued development of new and improved materials and material-processing techniques, the clearly available advances in turbomachine technology, promising progress in combustion technology, and vastly improved utilization of computational fluid dynamics (CFD) in engine design procedures. Finally, there is the unknown impact of novel technologies, such as ''smart engines'' and magnetic bearings, that may completely change the course of engine development.
This wide range of possibilities for engine development is narrowed by the general type of commercial aircraft to which they will be applied. The specific requirements differ between the advanced subsonic transports, the high-speed civil transport (HSCT), and the short-haul class of aircraft. Although these engine classes have many features in common, each has unique criteria that have a major influence on its design.
Students of AME, B.Tech., Aeronautical and Mechatronics, needs to learn the basics of piston and jet engines, about its components, material used at different sections of the engine and its principle of operations, maintenance practices on the engine and calculating the testing parameters. It is equally important for the students of Mechatronics to learn about the Aircraft Engines or propulsion system, because now a in latest engines, we control the fuel flow using latest electronics integration.
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