Author:
Erasov I. A.,Kuklina I.G.,Molev Y.I.,Mokerov D.S.,Skrebneva T.G.
Abstract
Abstract
Theoretical results of sound generation parameters under rotary-screw propulsion unit base cylinder bending are dealt with in this article. Base cylinder parameters impact such as diameter, wall thickness, length as well as such vehicle movement parameters impact as speed and mass on noise level appearing at rotary-screw propulsion unit passing a single obstacle are analyzed in the paper. Sound vibrations onset conditions are shown. Research results allow one to conclude that a considerable sound level generated by rotary-screw propulsion units can appear only when the vehicle mass to rotor diameter ratio is greater than 25. The model produced and the results obtained might be useful when designing cross-country vehicles.
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