FEASIBILITY STUDY ON PROPELLER VIBRATION RECORDING SYSTEM.
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1966
- Accession Number
- AD0654546
Entities
People
- J. R. Gibbons
Organizations
- General Electric