Methods and apparatus for determining moment weight of rotating machine components
US8069707B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2009 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Aug 3, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M1/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of determining the moment weight of a rotating component for a rotary machine includes the steps of: (a) supporting the component on a platform at a pair of spaced locations along a length dimension of the component, one of the spaced locations corresponding to a known radial distance from a centerline of a rotor of the rotary machine to a predetermined location on the component when the component is installed on the rotary machine, and wherein a center of gravity of the component is located between the spaced locations; (b) determining partial weights of the rotary machine component by supporting the platform on a pair of weight scales vertically aligned with and substantially centered on the spaced locations, wherein a total weight TW of the component is equal to a sum of the partial weights; (c) utilizing information obtained in step (b), locating a center of gravity of the component relative to the one of the spaced locations and determining a radial distance D1 between the center of gravity and the centerline of the rotor; and (d) utilizing information obtained in steps (a)-(c), determining the moment weight of the component by an equation: MW=TW*D1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.