NDLI: Analysis of aircraft engine blade subject to ice impact

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Analysis of aircraft engine blade subject to ice impact

Content Provider	NASA Technical Reports Server (NTRS)
Author	Reddy, E. S. Chamis, Christos C. Abumeri, G. H. Murthy, P. L. N.
Copyright Year	1991
Description	The ice impact on the engine blade made of layered composite is simulated. The ice piece is modeled as an equivalent spherical object and has the velocity opposite to that of the aircraft with direction parallel to the engine axis. Near the impact region and along the leading edge, the blade is assumed to be fully stressed and undergoes large deflection. A specified portion of the blade around the impact region is modeled. The effect of ice size and velocity on the average leading edge strain are investigated for a modified SR-2 model unswept composite propfan blade. Parametric studies are performed to study the response due to ice impact at various locations along the span. Also, the effects of engine speed on the strain and impact displacements are discussed. It is found that for a given engine speed, a critical ice speed exists that corresponds to the maximum strain and this critical speed increases with increase in the engine speed.
File Size	861351
Page Count	26
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19920006184
Archival Resource Key	ark:/13960/t0bw2ct79
Language	English
Publisher Date	1991-01-01
Access Restriction	Open
Subject Keyword	Structural Mechanics Transient Response Aircraft Construction Materials Fiber Composites Ice Computerized Simulation Aircraft Engines Laminates Impact Loads Finite Element Method Propeller Blades Propeller Fans Prop-fan Technology Mathematical Models Impact Damage Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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