Abstract
| Original language | English |
|---|---|
| Title of host publication | Mechatronic Systems and Materials II |
| Editors | Inga Skiedraite, Jolanta Baskutiene |
| Pages | 196-201 |
| DOIs | |
| Publication status | Published - 2009 |
| MoE publication type | A3 Part of a book or another research book |
Publication series
| Series | Solid State Phenomena |
|---|---|
| Volume | 144 |
| ISSN | 1012-0394 |
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Keywords
- shape memory alloy
- optical fiber sensors
- shape control
- FRP composite
- ProperTune
Cite this
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Shape Control of a FRP Airfoil Structure Using SMA-actuators and Optical Fiber Sensors. / Ruotsalainen, Pasi; Kroneld, Petter; Nevala, Kalervo; Brander, Timo; Lindroos, Tomi; Sippola, Merja.
Mechatronic Systems and Materials II. ed. / Inga Skiedraite; Jolanta Baskutiene. 2009. p. 196-201 (Solid State Phenomena, Vol. 144).Research output: Chapter in Book/Report/Conference proceeding › Chapter or book article › Scientific › peer-review
TY - CHAP
T1 - Shape Control of a FRP Airfoil Structure Using SMA-actuators and Optical Fiber Sensors
AU - Ruotsalainen, Pasi
AU - Kroneld, Petter
AU - Nevala, Kalervo
AU - Brander, Timo
AU - Lindroos, Tomi
AU - Sippola, Merja
PY - 2009
Y1 - 2009
N2 - The aim of this work was to design a control system for the shape memory alloy (SMA) actuator operated airfoil (a cross section of wind turbine blade). Design of SMA control is focused on the reliable operation of the SMA actuators. The actuator should follow the targeted shape accurately and without too much delay. Another objective is to avoid overheating which is the most critical damage to the structure. SMA actuator shape control is in principle possible to do with any position control method, but the specific properties of the SMA actuators, like the hysteresis, the first cycle effect and the long term changes, need to be taken into account. In this work, a wing profile prototype was measured using optical fiber sensors and traditional strain gauges. Also, external laser sensors were used to measure displacements of upper/lower surface and trailing edge. Shape change was obtained by embedding SMA wire actuators into fiber reinforced polymer (FRP) composite structure. SMA actuators were laminated in such way that bending of trailing edge is always downwards. Actuators are activated with Joule heating and the temperature is measured with integrated thermocouples and optical fiber temperature sensors. As a result, this work gave information about the usability of optical fibers sensors in active FRP composite structures. Measurements also give information about the efficiency of SMA actuators in shape control of relatively stiff FRP structures.
AB - The aim of this work was to design a control system for the shape memory alloy (SMA) actuator operated airfoil (a cross section of wind turbine blade). Design of SMA control is focused on the reliable operation of the SMA actuators. The actuator should follow the targeted shape accurately and without too much delay. Another objective is to avoid overheating which is the most critical damage to the structure. SMA actuator shape control is in principle possible to do with any position control method, but the specific properties of the SMA actuators, like the hysteresis, the first cycle effect and the long term changes, need to be taken into account. In this work, a wing profile prototype was measured using optical fiber sensors and traditional strain gauges. Also, external laser sensors were used to measure displacements of upper/lower surface and trailing edge. Shape change was obtained by embedding SMA wire actuators into fiber reinforced polymer (FRP) composite structure. SMA actuators were laminated in such way that bending of trailing edge is always downwards. Actuators are activated with Joule heating and the temperature is measured with integrated thermocouples and optical fiber temperature sensors. As a result, this work gave information about the usability of optical fibers sensors in active FRP composite structures. Measurements also give information about the efficiency of SMA actuators in shape control of relatively stiff FRP structures.
KW - shape memory alloy
KW - optical fiber sensors
KW - shape control
KW - FRP composite
KW - ProperTune
U2 - 10.4028/www.scientific.net/SSP.144.196
DO - 10.4028/www.scientific.net/SSP.144.196
M3 - Chapter or book article
SN - 978-3-908451-60-0
T3 - Solid State Phenomena
SP - 196
EP - 201
BT - Mechatronic Systems and Materials II
A2 - Skiedraite, Inga
A2 - Baskutiene, Jolanta
ER -