TY - GEN
T1 - Dynamic rotor blade displacement tracking with fiber-optical sensors for a health and usage monitoring system
AU - Suesse, Soeren
AU - Hajek, Manfred
N1 - Publisher Copyright:
© 2017 American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2017
Y1 - 2017
N2 - New sensor technologies will be important to realize advanced Health and Usage Monitoring concepts for rotorcrafts. Fiber-optical sensors applied on helicopter rotor blades can be used to identify elastic blade movements, which could then serve as a valuable data source to supply a Health and Usage Monitoring System. Furthermore, the data can be utilized to track the blade tip displacement in real-time. Recent advances in size and maturity of the measurement equipment enables fiber-optical sensors and the interrogator to be placed in the rotating system. In this paper, a modified approach of strain-displacement transformations is presented that calculates the displacement of a rotor blade with nonuniform cross sections in two dimensions, based on surface strain measurements with Fiber Bragg Grating (FBG) sensors. Dynamic load cases are validated with laser sensor measurements and the effects of using polynomials of different degrees to approximate the rotor blade shape are analyzed.
AB - New sensor technologies will be important to realize advanced Health and Usage Monitoring concepts for rotorcrafts. Fiber-optical sensors applied on helicopter rotor blades can be used to identify elastic blade movements, which could then serve as a valuable data source to supply a Health and Usage Monitoring System. Furthermore, the data can be utilized to track the blade tip displacement in real-time. Recent advances in size and maturity of the measurement equipment enables fiber-optical sensors and the interrogator to be placed in the rotating system. In this paper, a modified approach of strain-displacement transformations is presented that calculates the displacement of a rotor blade with nonuniform cross sections in two dimensions, based on surface strain measurements with Fiber Bragg Grating (FBG) sensors. Dynamic load cases are validated with laser sensor measurements and the effects of using polynomials of different degrees to approximate the rotor blade shape are analyzed.
UR - https://www.scopus.com/pages/publications/85088758249
U2 - 10.2514/6.2017-3659
DO - 10.2514/6.2017-3659
M3 - Conference contribution
AN - SCOPUS:85088758249
SN - 9781624105074
T3 - 18th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, 2017
BT - 18th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, 2017
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - 18th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, 2017
Y2 - 5 June 2017 through 9 June 2017
ER -