LOW PRESSURE TURBINE DESIGN FOR ROLLS-ROYCE TRENT 900 TURBOFAN

摘要

The Trent 900 engine is part of the Rolls-Royce Trent family, designed to enter into service in the Airbus 380, the largest commercial aeroplane in the world. The LP turbine design was performed in Spain by ITP. Since 1997 ITP has been involved in the Rolls-Royce Trent low pressure turbine design. In the Trent 900, ITP is one of the risk and revenue sharing partners of the project. The design team participated extensively in the low pressure turbine since the conceptual design phase to the engine certification that took place in October 2004 and it will continue through aeroplane civil operation. The aim of this paper is to describe some of the most key characteristics of the LP turbine design, mainly focused on the aerodynamics; The LP turbine concept will be shown, the new aerodynamic features described and how they are supported by former experimental data.