Experimental characterization and modeling of rate-dependent asymmetric hysteresis of magnetostrictive actuators

Aljanaideh, Omar; Rakheja, Subhash; Su, Chun‐Yi

doi:10.1088/0964-1726/23/3/035002

Cited by 35 publications

(22 citation statements)

References 38 publications

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“…In particular, the magnetostrictive sample is rigidly fixed at one extremity while is connected, through some supports and springs (8), to a test-machine able to provide a force, which is measured with a load cell. The springs allow mitigating the direct magnetostrictive effect in order to have a constant applied force [183]. A target is placed on the output shaft (9) to have a reference for the displacement sensor.…”

Section: Electro-magnetic Dynamics Hysteresismentioning

confidence: 99%

Review of Modeling and Control of Magnetostrictive Actuators

et al. 2019

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Magnetostrictive actuators play an important role in the perception of usefulness of smart materials and devices. Their applications are potentially wider than that of piezoelectric actuators because of the higher energy density and intrinsic robustness. However, the non-negligible hysteresis and complexity of their characteristics make the design and control quite difficult and has limited their diffusion in industrial applications. Nevertheless, the scientific literature presents a wide offer of results in design and geometries, modeling and control that may be exploited for applications. This paper gives a reasoned review of the main results achieved in the literature about design, modeling and control of magnetostrictive actuators exploiting the direct effects of magnetostriction (Joule and Wiedemann). Some perspectives and challenges about magnetostrictive actuators development are also gathered.

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Section: Electro-magnetic Dynamics Hysteresismentioning

confidence: 99%

Review of Modeling and Control of Magnetostrictive Actuators

et al. 2019

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“…RDPI model is used to describe piezoelectric-based actuators with a symmetric, non-saturated hysteresis but SMAdriven systems exhibit asymmetry, rate-dependency along with saturation [20][21][22][23]. Therefore, this study proposes use of deadband functions for boosting RDPI model to predict SMA hysteresis behavior better.…”

Section: Deadband Rate-dependent Prandtl-ishlinskii Modelmentioning

confidence: 99%

Tracking control of an SMA-driven actuator with rate-dependent behavior using an inverse model of hysteresis

Shakiba

Yousefi‐Koma

Ayati

2020

J Braz. Soc. Mech. Sci. Eng.

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Hysteresis is a nonlinear phenomenon which may cause inaccuracies and delay in control applications. Shape memory alloys (SMAs) have an asymmetric saturated hysteresis. In addition, the excitation frequency changes the hysteresis behavior of SMA-driven systems and makes them challenging to track reference inputs at different frequencies. In this study, a rate-dependent Prandtl-Ishlinskii model coupled with a deadband function is proposed to characterize the asymmetric and saturated hysteresis behavior as well as its rate-dependency. Unknown parameters of the model are identified using genetic optimization algorithm in MATLAB Toolbox based on measured data. The identified model is validated to consider the excitation frequency effect with a different measured data set. The inverse model is also proposed as a compensator to mitigate hysteresis nonlinearity effects especially the frequency effect in tracking control. Although the proposed compensator cannot fully compensate for hysteresis effects, it can reduce the input-output hysteresis. The proposed rate-dependent compensator as a feedforward controller combined with a proportional-integral-derivative (PID) controller as a feedback mitigates hysteresis effects. The PID controller is used to improve the accuracy of compensated system and remove the steady-state error. Experimental results illustrate that the proposed controller has a great accuracy in tracking control to consider the excitation frequency effect as well as the asymmetric saturated hysteresis.

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“…24–26 Such actuators also yield small displacements, in the order of μ m , and exhibit strong temperature dependence of the magnetostriction, 27 and considerable hysteresis that is nonlinearly dependent on both the frequency and magnitude of vibration. 28 A DVA design based on a magnetostrictive actuator may thus pose considerable modeling complexities and uncertainties in the active force. Electrodynamic actuators have been widely explored for engine mounts 29,30 and active DVAs due to their high force capacity.…”

Section: Introductionmentioning

confidence: 99%

Design of a hybrid proportional electromagnetic dynamic vibration absorber for control of idling engine vibration

Rakheja

Shangguan

2019

Proceedings of the Institution of Mechanical Engineers, Part D:

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A hybrid proportional electromagnetic dynamic vibration absorber consisting of an electromagnetic actuator and an elastic element is proposed for control of engine vibration during idling. The design of the proportional electromagnetic actuator is realized considering the geometric parameters of the core to achieve nearly constant magnetic force over a broad range of its dynamic displacement but proportional to square of the current. The dynamic characteristics of the electromagnetic dynamic vibration absorber are analyzed analytically and experimentally. The effects of various geometric parameters of the actuator such as the slopes and width/height, and the air gaps on the resulting magnetic force characteristics are evaluated using a finite element model and verified experimentally. A methodology is proposed to achieve magnetic force proportional to current and consistent with the disturbance frequency. The hybrid proportional electromagnetic dynamic vibration absorber is subsequently applied to a single-degree-of-freedom primary system with an acceleration feedback control algorithm for attenuation of primary system vibration in a frequency band around the typical idling vibration frequencies. The effectiveness of the hybrid proportional electromagnetic dynamic vibration absorber is evaluated through simulations and laboratory experiments under harmonic excitations in the 20–30 Hz frequency range. Both the simulation and measurements show that the hybrid proportional electromagnetic dynamic vibration absorber can yield effective attenuation of periodic idling vibration in the frequency range considered.

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Experimental characterization and modeling of rate-dependent asymmetric hysteresis of magnetostrictive actuators

Cited by 35 publications

References 38 publications

Review of Modeling and Control of Magnetostrictive Actuators

Review of Modeling and Control of Magnetostrictive Actuators

Tracking control of an SMA-driven actuator with rate-dependent behavior using an inverse model of hysteresis

Design of a hybrid proportional electromagnetic dynamic vibration absorber for control of idling engine vibration

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