Accession Number:

AD0654546

Title:

FEASIBILITY STUDY ON PROPELLER VIBRATION RECORDING SYSTEM.

Descriptive Note:

Technical rept.,

Corporate Author:

GENERAL ELECTRIC CO SCHENECTADY N Y

Personal Author(s):

Report Date:

1966-03-01

Pagination or Media Count:

123.0

Abstract:

Feasibility studies were made of recording propeller strains at 64 positions for 200 hours of flight. The frequency response of the data extended from d.c. to 1000 cps. A system has been devised to record the signal characteristics of interest using an intermittently operated magnetic tape recorder to record high level signals at full frequency response and a slow speed recorder to maintain a continuous log of the peak signal history. A key feature of the system is the elimination of slip rings to transmit signals from, and power to, the propellers. Many of the system components are now in production. A few require development. The principal limitation of the system is the difficulty of measuring static strains over a wide temperature range. A method of compensation is proposed which corrects temperature errors over a restricted temperature range. Author

Subject Categories:

  • Aircraft
  • Recording and Playback Devices

Distribution Statement:

APPROVED FOR PUBLIC RELEASE