VALIDATION OF FUTURE GAS TURBINE TECHNOLOGY BY BR700 CORE DEMONSTRATOR ENGINE TESTS IN THE STUTTGART UNIVERSITY ALTITUDE TEST FACILITY

摘要

After the formation of BMW Rolls-Royce in July 1990, the company was concentrated on design, manufacturing and marketing the BR700 engine family, which covers the 12.000 to 22.000 Ibs thrust range. The BR710, the first variant of the family, achieved full certification 48 months after programme launch. The BR715, the second variant of the family, will be certified in only 37 months after launching the project. For future civil engines the trend is likely to go down to a 30 months product development cycle. To de-risk the development programmes, strategies must be set in place which allow the introduction of advanced technologies with an acceptable level of risk. Consequently, advanced technology must be build up in separate research and technology acquisition programmes. The validation of the most promising technologies has to take place in a representative engine environment in order to minimise the risk for future applications. BMW Rolls-Royce therefore decided to use the BR700 core engine as platform for component validation and certification tests at the Institut fuer Flugantriebe" at the University of Stuttgart. This paper describes the set-up of the Stuttgart ATF for core testing and gives some examples of how the BR710 and BR715 development programmes have been de-risked by using the core vehicle as a mean of technology readiness demonstration. In addition, the strategy is briefly described how to use core testing as a technology demonstration strategy for the 21~(st) century.