Process and apparatus for sizing a damper ring
US8061209B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2008 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Jun 26, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M7/027
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and a process for determining the mass required for a wire damper ring to produce the maximum amount of damping in a certain rotary machine. The testing apparatus includes a test piece with an inward facing annular groove and a plurality of expander segments each with the top or outer half of a wire damper ring segment secured to and extending outward to fit within the annular groove. A mandrel with an outer surface having a slight slope is passed through a central opening of the expander segments and displaces the ring segments radially outward and into the annular groove at varying loads. The apparatus is set to vibrating and a piece of the test piece is observed for vibrations. The load applied to the damper ring segments is varied until the vibration is at a minimum. The applied load can now be correlated with the mass required for the damper ring to produce similar damping capability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.