NDLI: Modal simulation of gearbox vibration with experimental correlation

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Modal simulation of gearbox vibration with experimental correlation

Content Provider	NASA Technical Reports Server (NTRS)
Author	Oswald, Fred B. Choy, Fred K. Ruan, Yeefeng F. Zakrajsek, James J.
Copyright Year	1992
Description	A newly developed global dynamic model was used to simulate the dynamics of a gear noise rig at NASA Lewis Research Center. Experimental results from the test rig were used to verify the analytical model. In this global dynamic model, the number of degrees of freedom of the system are reduced by transforming the system equations of motion into modal coordinates. The vibration of the individual gear-shaft system are coupled through the gear mesh forces. A three-dimensional, axial-lateral coupled, bearing model was used to couple the casing structural vibration to the gear-rotor dynamics. The coupled system of modal equations is solved to predict the resulting vibration at several locations on the test rig. Experimental vibration data was compared to the predictions of the global dynamic model. There is excellent agreement between the vibration results from analysis and experiment.
File Size	708405
Page Count	18
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19920022241
Archival Resource Key	ark:/13960/t39071s6p
Language	English
Publisher Date	1992-01-01
Access Restriction	Open
Subject Keyword	Mechanical Engineering Degrees of Freedom Vibration Structural Vibration Helicopter Propeller Drive Coordinates Equations of Motion Shafts Machine Elements Rotor Dynamics Gears Simulation Vibration Mode Dynamic Models Mathematical Models Three Dimensional Models Prediction Analysis Techniques Transmissions Machine Elements 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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