Accession Number:

ADA028924

Title:

Vibration Measurements on the Rotor Shaft of the UH-1M Helicopter.

Descriptive Note:

Test rept.,

Corporate Author:

FRANKFORD ARSENAL PHILADELPHIA PA

Personal Author(s):

Report Date:

1976-02-01

Pagination or Media Count:

18.0

Abstract:

This report describes a program of in-flight vibration measurements carried out on a platform mounted atop the rotor mast on the UH-1M helicopter. Results of a real time analysis of the data are presented which reveal that a low level of vibration exists at that site making it a good location for the future placement of fire control instrumentation. A mechanical impedance study is also presented which shows that much of the high frequency present in the acceleration-time histories is a result of resonances in the tested platform. Author

Subject Categories:

  • Helicopters
  • Fire Control and Bombing Systems
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE