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High-Speed Dynamometers - Modern Water Brakes Offer New Potential for Testing Engines
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English
Abstract
New developments make water brakes suitable for an unlimited number of dynamometer applications. Performance, operation, and mechanical design of the multiple, perforated disc water brake is described. Principles of power absorption are discussed and various power absorption devices are compared.
Knowledge gained through 300,000 hr of testing gas turbine engines with water brakes makes it possible to produce compact, lightweight, dependable, low-cost water brakes. The deleterious effect of cavitation has been avoided. A water brake with a weight-to-absorbed power ratio of 0.025 lb/hp was developed.
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Authors
Topic
Citation
Bronder, J. and Jewett, C., "High-Speed Dynamometers - Modern Water Brakes Offer New Potential for Testing Engines," SAE Technical Paper 710215, 1971, https://doi.org/10.4271/710215.Also In
References
- Cimino A. A. Darlington C. R. “Capabilities of the Rocket Test Facility for Testing Turboprop/Turboshaft Engines Up To 10,000 Equivalent Shaft Horsepower.” Arnold Engineering Development Center Report AEDC-TR-70-88 1969
- Czelusniak Daniel P. “Turboshaft Engine Load Absorption in U.S. Navy Overhaul Test Cells.” Department of the Navy, Naval Air Systems Command 1969
- Eisenberg P. Preiser H. Thiruvengadam A. “On the Mechanism of Cavitation Damage and Methods of Protection.” Society of Naval Architects and Marine Engineers November 1965