چکیده مقاله
Terfenol D is a giant magnetostrictive material, which is widely used in actuators and transducers There are power losses during the conversion of magnetic energy to mechanical energy in these actuators that reduce the efficiency In this paper, effects of eddy currents and hysteresis losses on the efficiency of Terfenol D actuator are studied Initially, based on Maxwell’s equations of electromagnetism, mathematical models for eddy currents and hysteresis losses are presented that lead to identify the effective parameters on the actuator’s efficiency Then, an experimental set up is provided and various tests in different frequencies are performed to obtain essential data for mathematical models Results show that eddy currents and hysteresis losses have remarkable effects of the efficiency of Terfenol D actuator especially in high frequencies
کلیدواژهها
نویسندگان
S Talebian
Mechanical Department, Faculty of Engineering, Tarbiat Modares University, Tehran, Iran
Y Hojjat
Mechanical Department, Faculty of Engineering, Tarbiat Modares University, Tehran, Iran
M Ghodsi
Mechanical Department, Faculty of Engineering, Tarbiat Modares University, Tehran, Iran
M.R Karafi
Mechanical Department, Faculty of Engineering, Tarbiat Modares University, Tehran, Iran
شیوه ارجاع
Talebian, S and Hojjat, Y and Ghodsi, M and Karafi, M.R,1390,Efficiency Investigation of a Self-Sensing Giant Magnetostrictive Actuator,12th Iranian Conference on Manufacturing Engineering (ICME 2010),Tehran
ارائهشده در
مجموعه مقالات دوازدهمین کنفرانس ملی مهندسی ساخت و تولید ایران6 دی 1390 · تهران