Method of balancing a bladed rotor
US5537861A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1995 |
| Grant date | Jul 23, 1996 |
| Priority date | — |
| Expiry date | Mar 20, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F15/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method disclosed]for balancing the fan rotor (10) of a turbine engine having a hub (12) with blades (16) extending radially therefrom includes the steps of determining (30) a penalty associated with each possible unique blade arrangement in which a limited number of blades is relocated from their initially assigned locations on the hub to new target locations. A subset of these arrangements is selected (34), the subset members being the arrangements having the lowest penalties. For each member of the subset, the penalty determination (36) is made for each possible unique blade arrangement in which a limited number of blades is relocated from their initial locations in each subset member to new target locations. If these latter penalty determinations identify an arrangement having a penalty less than that of any arrangement in the subset, the subset selection (34) and penalty determination steps (36) are repeated until no further reduction in penalty is observed. Once a blade arrangement having the smallest penalty is identified, the imbalance associated with that arrangement is compared (42) to a predetermined imbalance limit. If the imbalance is no greater than the limit, the bl…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.