There is constant pressure to reduce engine development cycles to minimize costs and bring forward the revenue earning part of the engine's life. As cost and time are designed out, the risk of performance shortfall must be minimized by bidding efficiencies from demonstrated technology. This requires a large-scale ongoing advanced development program. In compressor development, high-speed tests are unavoidable but are expensive; low-speed rigs are easier to instrument and provide a cost-effective filter for the high-speed designs. The large-scale, low-speed compressor at Cranfield is one of only four worldwide. Recent investment in data reduction software has greatly reduced the test/analysis cycle time. One build/test cycle on the low-speed rig, including procurement of parts, costs about 150.000 British Pounds and two or more builds, depending on build specification, may be carried out per year. Build cycles on the high-speed rig are likely to take twice as long and cost twice as much. For comparison, an engine compressor test would cost 10 times as much as the low-speed test.
Reducing cost, time and risk in aero-engine compressor testing
Reduzierung von Kosten, Zeit und Risiken beim Testen von Flugtriebwerks-Verdichtern
1997
8 Seiten, 8 Bilder, 5 Quellen
Article (Journal)
English
Reducing cost, time, and risk in aero-engine compressor testing
British Library Conference Proceedings | 1997
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Online Contents | 1997
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