TY - GEN
T1 - Novel flexible membrane for structural health monitoring of wind turbine blades - Feasibility study
AU - Laflamme, S.
AU - Saleem, H.
AU - Vasan, B.
AU - Geiger, R.
AU - Chaudhary, S.
AU - Kollosche, M.
AU - Rajan, K.
AU - Kofod, G.
PY - 2013
Y1 - 2013
N2 - Several sensing systems have been developed over the last decade for structural health monitoring (SHM) of wind turbine blades,and some have shown promise at damage detection. Yet,thereexist several challenges in establishing links between sensor signal,damagestate (diagnosis),andresidual life (prognosis) of a wind turbine blade. In order to create a complete SHM system capable of damage diagnosis, localization,andprognosis for wind turbine blades,theauthors propose a novel sensing method capable of distributed sensing. The sensor is a flexible membrane composed of several soft capacitors arranged in a matrix,withthe advantages of being robust,easyto install, inexpensive,capableof covering large surfaces,andinvolving relatively simple signal processing. By measuring changes in capacitance,itis possible to determine local strains on a structural member at pre-defined levels of precisions. To demonstrate the promise of the smart material at SHM of blades,thesensing system is tested for quasi-static and dynamic loads. Test results show the great potential of the proposed sensing technology at damage diagnosis, localization,andprognosis of wind turbine blades. The latest state of research on the sensing solution is also discussed,anda new measurement method is demonstrated on a fiberglass plate.
AB - Several sensing systems have been developed over the last decade for structural health monitoring (SHM) of wind turbine blades,and some have shown promise at damage detection. Yet,thereexist several challenges in establishing links between sensor signal,damagestate (diagnosis),andresidual life (prognosis) of a wind turbine blade. In order to create a complete SHM system capable of damage diagnosis, localization,andprognosis for wind turbine blades,theauthors propose a novel sensing method capable of distributed sensing. The sensor is a flexible membrane composed of several soft capacitors arranged in a matrix,withthe advantages of being robust,easyto install, inexpensive,capableof covering large surfaces,andinvolving relatively simple signal processing. By measuring changes in capacitance,itis possible to determine local strains on a structural member at pre-defined levels of precisions. To demonstrate the promise of the smart material at SHM of blades,thesensing system is tested for quasi-static and dynamic loads. Test results show the great potential of the proposed sensing technology at damage diagnosis, localization,andprognosis of wind turbine blades. The latest state of research on the sensing solution is also discussed,anda new measurement method is demonstrated on a fiberglass plate.
KW - Area strain gauges
KW - Flexible membrane sensor
KW - Soft capacitors
KW - Structural health monitoring
KW - Wind turbine blades
UR - https://www.scopus.com/pages/publications/84872851689
M3 - Conference contribution
AN - SCOPUS:84872851689
SN - 9781118580981
T3 - Ceramic Transactions
SP - 315
EP - 323
BT - Materials Challenges in Alternative and Renewable Energy II - A Collection of Papers Presented at the Materials Challenges in Alternative and Renewable Energy Conference
T2 - 2nd Materials Challenges in Alternative and Renewable Energy, Energy 2012
Y2 - 26 February 2012 through 1 March 2012
ER -