Engineering topics
Publications and source records attributed to Lyon, R. H..
Theories regarding the radiation of sound are reviewed and the implementation in strategies for explaining or measuring the sound produced by practical strucutres are discussed. Particular attention is given to those aspects that relate to the determination of the relative amounts of sound generated by various parts of a machine or structure, which can be very useful information for noise reduction efforts.
Experimental results and conclusions are presented about the noise characteristics of gears as a function of their operating conditions. The interpretive possibilities offered by real time noise and vibration spectrum analysis are emphasized. The noise reducing effects of light weight insulation boxes are also discussed.
Estimation of inflight acoustic and fluctuating aerodynamic environments and resulting surface vibration levels
Study analyzes structural vibrations and the interactions between them and sound fields. It outlines a conceptual framework to analyze the vibrations of systems and their interactions, incorporating the results of earlier studies and establishing a unified basis for continuing research.
Statistical energy analysis for predicting sound and vibration transmission in shroud-enclosed spacecraft
Low frequency noise reduction of spacecraft structures
Response of aerospace structures to in-flight dynamic loads in HF range
Sound and vibration transmission in OGO SPACECRAFT shroud system
Response of simple structure to boundary layer noise examined together with response of supported panel to sound field
Energy method for prediction of high frequency noise and vibration transmission
Noise reduction in rectangular enclosures with one flexible wall
Nonlinear behavior of structure subjected to random vibrations using clamped-clamped beam as a sample structure
Noise reduction due to a flexible panel in rigid rectangular enclosures
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Acoustic radiation from a beam attached to a thin plate
Vibration in complicated structures