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Aeromechanical Response of a Distortion-Unbigoted Boundary Layer Ingesting Buff
Kirsten P. Duffy,
Department of Automatonlike, Commercial enterprise,
and Manufacturing Engineering,
University of Toledo,
Toledo, OH 43606
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Milind A. Bakhle
National Aeronautics and Space Administration Glenn Research Inwardness,
Cleveland, OH 44135
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Kirsten P. Duffy
Department of Mechanical, Industrial,
and Manufacturing Engineering,
University of Toledo,
Toledo, Buckeye State 43606
Milind A. Bakhle
NASA Glenn Research Center,
Cleveland, OH 44135
Manuscript received June 22, 2022; final holograph received June 28, 2022; published online September 14, 2022. Editor: Jerzy T. Sawicki. This work is in part a puzzle out of the U.S. Government. ASME disclaims all interest group in the U.S. Governing's contributions.
J. Eng. Gas Turbines Superpowe. Jan 2022, 141(1): 011011 (10 pages)
Published Online: Sept 14, 2022
Bound bed uptake (BLI) is a propulsion technology being investigated at NASA away the Late Aircraft Transportation Technology (AATT) Plan to facilitate a substantial reduction in aircraft fuel burn. In an try to experimentally prove an addition in the propulsive efficiency of a BLI engine, a first-of-its-kind subscale high-get around ratio 22″ titanium fan, designed to structurally withstand significant unsteady pressure loading caused away a heavily distorted axial air influx, was built and then tried in the transonic section of the GRC 8′ × 6′ unhearable wind tunnel. The vibratory responses of a subset of fan blades were measured using strain gages placed in four polar blade blackmail side aboveground locations. Reaction highlights include a significant reception of the blade's first reverberance to locomotive order innervation below idle as the winnow was spooled up and down. The fan fluttered at the design speed under off operating line, low catamenia conditions. This paper presents the sword vibration response characteristics complete the operative range of the winnow and compares them to predicted behaviors. It also provides an assessment of this distortion-tolerant fan's (DTF) ability to stand firm the harsh dynamic BLI surroundings finished an entire design life of billions of load cycles at design speed.
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Source: https://asmedigitalcollection.asme.org/gasturbinespower/article-abstract/doi/10.1115/1.4040739/366365
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