TY - GEN
T1 - Novel magnetostrictive bimetal actuator using permendur
AU - Ghodsi, Mojtaba
AU - Ueno, Toshiba
AU - Higuchi, Toshiro
PY - 2008
Y1 - 2008
N2 - In this research permendur (49Fe-49Co-2V) and nickel were used to make a novel bimetal actuator. The actuator consists of a main body and core with energizing coil. The main body of actuator is made of annealed permendur with two magnetostrictive bimetal arms. The magnetostrictive bimetal technique is used to enhance the small displacement of permendur. Static and dynamic behaviors of the actuator are investigated at both, room temperature (RT) and 77 K. The actuator magnified the small displacement of permendur strip (1.8 μm) and large displacement of 9 and 5 μm are achieved at RT and 77 K, respectively when the coil was energized by ± 5 A current. Additionally, it is found that resonance frequency of actuator is 1240 Hz at 77 K and 1125 Hz at RT. Since the stiffness of actuator increases at 77 K, the displacement of actuator is reduced 33-50% when the coil is energized with different amplitudes at cryogenic environments.
AB - In this research permendur (49Fe-49Co-2V) and nickel were used to make a novel bimetal actuator. The actuator consists of a main body and core with energizing coil. The main body of actuator is made of annealed permendur with two magnetostrictive bimetal arms. The magnetostrictive bimetal technique is used to enhance the small displacement of permendur. Static and dynamic behaviors of the actuator are investigated at both, room temperature (RT) and 77 K. The actuator magnified the small displacement of permendur strip (1.8 μm) and large displacement of 9 and 5 μm are achieved at RT and 77 K, respectively when the coil was energized by ± 5 A current. Additionally, it is found that resonance frequency of actuator is 1240 Hz at 77 K and 1125 Hz at RT. Since the stiffness of actuator increases at 77 K, the displacement of actuator is reduced 33-50% when the coil is energized with different amplitudes at cryogenic environments.
KW - Bimetal actuator
KW - Cryogenic environments
KW - Magnetostrictive
KW - Static and dynamic responses
UR - http://www.scopus.com/inward/record.url?scp=56349137120&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=56349137120&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/amr.47-50.262
DO - 10.4028/www.scientific.net/amr.47-50.262
M3 - Conference contribution
AN - SCOPUS:56349137120
SN - 0878493786
SN - 9780878493784
T3 - Advanced Materials Research
SP - 262
EP - 265
BT - Multi-functional Materials and Structures - International Conference on Multifunctional Materials and Structures
PB - Trans Tech Publications
T2 - Multi-functional Materials and Structures - International Conference on Multifunctional Materials and Structures
Y2 - 28 July 2008 through 31 July 2008
ER -