LONGITUDINAL VIBRATION OF PROPULSION SYSTEM ON USS SIMON LAKE (AS-33)

Antonides, Gary P.

LONGITUDINAL VIBRATION OF PROPULSION SYSTEM ON USS SIMON LAKE (AS-33)

1966

Antonides, Gary P.

Measurements were made on the propulsion system of the USS SIMON LAKE (AS-33) in February 1965 as part of a program to improve analysis procedures used by the Navy for predicting the longitudinal vibration of shaft propulsion systems. The objectives were to find the axial exciting forces and damping associated with the propulsion system of this ship, as well as to determine how the gear case, turbines, condenser, and machinery foundation affect longitudinal vibration. Alternating thrust in the shaft and longitudinal displacement of the gear case, low-pressure turbine, condenser, and machinery foundation were measured. A resonance was found to exist in the operating range, but it is not considered detrimental. The gear case, turbines, and condenser move essentially as one unit. A mass-elastic system derived from measured data includes a level effect acting on the foundation mass. The exciting forces are lower than usual, except at or near full power.

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AGROVOC Keywords

propulsion systems vibration

Bibliographic information

Other Subjects

*tenders(vessels); *marine propellers; *marine propulsion; Shafts(machine elements); Marine engineering

Language

English

License

http://stinet.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0629273Approved for public release; distribution is unlimited. Document partially illegible.

Type

Text

Source

DAVID TAYLOR MODEL BASIN WASHINGTON DC ACOUSTICS AND VIBRATION LABDTIC AND NTIS

Corporate Author

DAVID TAYLOR MODEL BASIN WASHINGTON DC ACOUSTICS AND VIBRATION LAB

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