VSTOL tilt nacelle aerodynamics and its relation to fan blade stresses

Autor:	R. C. Williams, R. J. Shaw, J. L. Koncsek
Rok vydání:	1978
Předmět:	geography Engineering geography.geographical_feature_category Nacelle business.industry Aerodynamics Mechanics Inlet Turbofan Flow separation Tilt (optics) Flight envelope Aerospace engineering business Wind tunnel
Zdroj:	14th Joint Propulsion Conference.
DOI:	10.2514/6.1978-958
Popis:	A scale model of a VSTOL tilt nacelle with a 0.508 m single stage fan was tested in a low speed wind tunnel to ascertain inlet aerodynamic and fan aeromechanical performance over the low speed flight envelope. Fan blade stress maxima occurred at discrete rotational speeds corresponding to integral engine order vibrations of the first flatwise bending mode. Increased fan blade stress levels coincided with internal boundary layer separation but became severe only when the separation location had progressed to the entry lip region of the inlet.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d31ddc0786bfca39b02a48d0b3068a07 https://doi.org/10.2514/6.1978-958 Zobrazit plný text záznamu