EFFECT OF TIES ON THE VIBRATION ENDURANCE OF TURBINE BLADES,
Abstract
The purpose of the study was to determine and compare the vibrational characteristics of blades with soldered and nonsoldered damping lacing. The tests were made with: (1) a set of ten blades with a lacing wire soldered to them, which were compared with results obtained in tests using blades with unsoldered lacing wire; (2) a similar set, which consisted of seven blades, used to determine the effect of the number of blades on the dynamic stresses and to compare stresses in the center and at the end of the blade set; (3) a set of ten blades with an unsoldered lacing wire tested to compare vibration characteristics with other sets using soldered lacing wires. After static and dynamic testing of the first set and dynamic testing of the second set, the soldered lacing wire was cut and the remaining set of seven blades was tested. The test results indicate that soldering of lacing wire to a set of blades significantly reduces the vibration amplitude of the first harmonic oscillations. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 27, 1969
- Accession Number
- AD0695201
Entities
People
- D. A. Arkadev
Organizations
- National Air and Space Intelligence Center