NASA powered lift facility internally generated noise its transmission to the acoustic far field
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NASA powered lift facility internally generated noise its transmission to the acoustic far field (2018)
EN PB NWISBN: 9781724309419 bzw. 1724309412, in Englisch, 220 Seiten, CreateSpace Independent Publishing Platform, Taschenbuch, neu.
Lieferung aus: Vereinigte Staaten von Amerika, Usually ships in 4-5 business days, Real shipping costs can differ.
Von Händler/Antiquariat, super_star_seller.
Noise tests of NASA Lewis Research Center's Powered Lift Facility (PLF) were performed to determine the frequency content of the internally generated noise that reaches the far field. The sources of the internally generated noise are the burner, elbows, valves, and flow turbulence. Tests over a range of nozzle pressure ratios from 1.2 to 3.5 using coherence analysis revealed that low frequency noise below 1200 Hz is transmitted through the nozzle. Broad banded peaks at 240 and 640 Hz were found in the transmitted noise. Aeroacoustic excitation effects are possible in this frequency range. The internal noise creates a noise floor that limits the amount of jet noise suppression that can be measured on the PLF and similar facilities. Huff, Ronald G. Unspecified Center NASA-CR-182217, E-4474, NAS 1.26:182217 NAS3-25266…, Paperback, Label: CreateSpace Independent Publishing Platform, CreateSpace Independent Publishing Platform, Product group: Book, Published: 2018-07-27, Studio: CreateSpace Independent Publishing Platform.
Von Händler/Antiquariat, super_star_seller.
Noise tests of NASA Lewis Research Center's Powered Lift Facility (PLF) were performed to determine the frequency content of the internally generated noise that reaches the far field. The sources of the internally generated noise are the burner, elbows, valves, and flow turbulence. Tests over a range of nozzle pressure ratios from 1.2 to 3.5 using coherence analysis revealed that low frequency noise below 1200 Hz is transmitted through the nozzle. Broad banded peaks at 240 and 640 Hz were found in the transmitted noise. Aeroacoustic excitation effects are possible in this frequency range. The internal noise creates a noise floor that limits the amount of jet noise suppression that can be measured on the PLF and similar facilities. Huff, Ronald G. Unspecified Center NASA-CR-182217, E-4474, NAS 1.26:182217 NAS3-25266…, Paperback, Label: CreateSpace Independent Publishing Platform, CreateSpace Independent Publishing Platform, Product group: Book, Published: 2018-07-27, Studio: CreateSpace Independent Publishing Platform.
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NASA Powered Lift Facility Internally Generated Noise and Its Transmission to the Acoustic Far Field (2018)
EN NW RPISBN: 9781724309419 bzw. 1724309412, in Englisch, Createspace Independent Publishing Platform, neu, Nachdruck.
Von Händler/Antiquariat, Pbshop [61989342], Wood Dale, IL, U.S.A.
New Book. Shipped from US within 10 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.
New Book. Shipped from US within 10 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.
3
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NASA Powered Lift Facility Internally Generated Noise and Its Transmission to the Acoustic Far Field (2018)
EN NW RPISBN: 9781724309419 bzw. 1724309412, in Englisch, Createspace Independent Publishing Platform, neu, Nachdruck.
Von Händler/Antiquariat, Books2Anywhere [190245], Fairford, GLOS, United Kingdom.
New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.
New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.
4
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Nasa Powered Lift Facility Internally Generated Noise and Its Transmission to the Acoustic Far Field (2000)
EN PB NWISBN: 9781724309419 bzw. 1724309412, in Englisch, Createspace Independent Publishing Platform, Taschenbuch, neu.
Lieferung aus: Vereinigtes Königreich Großbritannien und Nordirland, plus shipping, Shipping area: EUR.
Von Händler/Antiquariat, Paperbackshop International, GLOS, Fairford, [RE:4].
Softcover.
Von Händler/Antiquariat, Paperbackshop International, GLOS, Fairford, [RE:4].
Softcover.
5
NASA powered lift facility internally generated noise and its transmission to the acoustic far field
EN PB NWISBN: 9781724309419 bzw. 1724309412, in Englisch, CreateSpace Publishing, Taschenbuch, neu.
Lieferung aus: Vereinigte Staaten von Amerika, In Stock.
Die Beschreibung dieses Angebotes ist von geringer Qualität oder in einer Fremdsprache. Trotzdem anzeigen
Die Beschreibung dieses Angebotes ist von geringer Qualität oder in einer Fremdsprache. Trotzdem anzeigen
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