Read Vibration Characteristics of OH-58A Helicopter Main Rotor Transmission

Vibration Characteristics of OH-58A Helicopter Main Rotor Transmission

David G. Lewicki

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Description:Experimental vibration tests covering a range of torque and speed conditions were performed on the OH-58A helicopter main rotor transmission at the NASA Lewis Research Center. Signals from accelerometers located on the transmission housing were analyzed by using Fourier spectra, power spectra, power spectral density functions, and averaging techniques. Most peaks of the Fourier spectra occurred at the spiral bevel and planetary gear mesh harmonics. The highest level of vibration occurred at the spiral bevel and planetary gear mesh harmonics. The highest level of vibration occurred at the spiral bevel meshing frequency. Transmission speed and vibration measurement location had a significant effect on measured vibration; transmission torque and measurement direction had a small effect.We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Vibration Characteristics of OH-58A Helicopter Main Rotor Transmission. To get started finding Vibration Characteristics of OH-58A Helicopter Main Rotor Transmission, you are right to find our website which has a comprehensive collection of manuals listed.
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Pages: 24

Format: PDF, EPUB & Kindle Edition

Publisher: —

Release: 1987

ISBN: PP4TAQAAIAAJ

Description: Experimental vibration tests covering a range of torque and speed conditions were performed on the OH-58A helicopter main rotor transmission at the NASA Lewis Research Center. Signals from accelerometers located on the transmission housing were analyzed by using Fourier spectra, power spectra, power spectral density functions, and averaging techniques. Most peaks of the Fourier spectra occurred at the spiral bevel and planetary gear mesh harmonics. The highest level of vibration occurred at the spiral bevel and planetary gear mesh harmonics. The highest level of vibration occurred at the spiral bevel meshing frequency. Transmission speed and vibration measurement location had a significant effect on measured vibration; transmission torque and measurement direction had a small effect.We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Vibration Characteristics of OH-58A Helicopter Main Rotor Transmission. To get started finding Vibration Characteristics of OH-58A Helicopter Main Rotor Transmission, you are right to find our website which has a comprehensive collection of manuals listed.
Our library is the biggest of these that have literally hundreds of thousands of different products represented.

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Vibration Characteristics of OH-58A Helicopter Main Rotor Transmission

Vibration Characteristics of OH-58A Helicopter Main Rotor Transmission

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