Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4977015 | Mechanical Systems and Signal Processing | 2017 | 15 Pages |
Abstract
This paper presents a novel approach to monitoring rotor blade flap, lead-lag and pitch using an embedded gyroscope and symmetrically mounted MEMS accelerometers. The central hypothesis is that differential accelerometer measurements are proportional only to blade motion; fuselage acceleration and blade bending are inherently compensated for. The inverse kinematic relationships (from blade position to acceleration and angular rate) are derived and simulated to validate this hypothesis. An algorithm to solve the forward kinematic relationships (from sensor measurement to blade position) is developed using these simulation results. This algorithm is experimentally validated using a prototype device. The experimental results justify continued development of this kinematic estimation approach.
Related Topics
Physical Sciences and Engineering
Computer Science
Signal Processing
Authors
C. Jeff Allred, David Churchill, Gregory D. Buckner,