Reducing vibration using QR decomposition and unconstrained optimization for a multi-rotor aircraft
US7512463B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 16, 2005 |
| Grant date | Mar 31, 2009 |
| Priority date | — |
| Expiry date | Apr 11, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B13/024
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Determining adjustments to decrease vibrations caused by rotating blades from a plurality of rotors includes determining a first plurality of adjustment normalization values for a plurality of possible adjustments of blades of a first one of the plurality of rotors, where the first plurality of adjustment normalization values normalizes different types of adjustments having different units, determining a second plurality of adjustment normalization values for a plurality of possible adjustments of blades of a second one of the plurality of rotors, where the second plurality of adjustment normalization values normalizes different types of adjustments having different units and where, for a particular adjustment type, an adjustment normalization value of the first plurality of adjustment normalization values is independent of a corresponding adjustment normalization value of the second plurality of adjustment normalization values for the particular adjustment type, providing coefficient of vibration data that corresponds to effects on vibration caused by adjustments to the blades, receiving a plurality of vibration values corresponding to vibrations caused by the blades, applying the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.