Magnetostrictive actuator with differential displacement amplification mechanism

Lu, Qiming; Nie, Qin; Jiang, Xiaoqing; Cao, Qinghua; Chen, Dingfang

doi:10.5755/j01.mech.22.4.16166

Cited by 6 publications

(5 citation statements)

References 8 publications

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“…Several works dealing with MA present the attempt to mechanically amplify the total stroke, spanning from the crossbow geometry [44,[87][88][89] to hydraulic amplification through fluids [90][91][92], lever mechanisms [50,[93][94][95] and other more peculiar configurations [96][97][98].…”

Section: Amplified Configurationsmentioning

confidence: 99%

“…For example, a magnetostrictive actuator using Terfenol-D with differential displacement amplification system is proposed in [93]. In this amplification system, both the micro-actuator and the output end are on the same axis.…”

Section: Amplified Configurationsmentioning

confidence: 99%

“…The magnetostrictive induced displacement of about 22 µm was amplified to about 160 µm, giving a gain of 7.14. [93] (Reprinted with permission from [93]). (Right) A tandem arrayed magnetostrictive actuator [97] (Reprinted with permission from [97]).…”

Section: Amplified Configurationsmentioning

confidence: 99%

See 2 more Smart Citations

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: Amplified Configurationsmentioning

confidence: 99%

Section: Amplified Configurationsmentioning

confidence: 99%

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Review of Modeling and Control of Magnetostrictive Actuators

et al. 2019

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“…The output displacements conflate and then be amplified by actuating the ends of LAM3 in the second stage. According to the lever amplification principle, the amplification ratio of the DLAM [90]; (e) Differential lever amplifier [91]; (f) Micromanipulation for cell [92]; (g) Lever-bridge type amplifier [93]; (h) Five-bar amplifier [94]; (i) SR-lever amplifier [74]; (j) Dual-drive bridge-type amplifier [103], [104]; (k) Dual-drive bridge-lever amplifier [106]; (l) honeycomb link amplifier [112]; (m) Exponential strain amplifier [25], [113]. can be written as…”

Section: B Multistage Amplifiermentioning

confidence: 99%

“…which is obviously larger than the amplification ratio that LAM1, LAM2, and LAM3 straightforward connected. Lu et al [91] employed the DLAM with amplification ratio of 7.14 to amplify the stroke of the magnetostrictive actuator, as shown in FIGURE 4 (e). The paper concluded that DLAM can realize larger displacement output with the relatively small structure compared with other amplifiers.…”

Section: B Multistage Amplifiermentioning

confidence: 99%

A Review on the Flexure-Based Displacement Amplification Mechanisms

et al. 2020

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Multifarious flexure-based displacement amplifiers have been proposed and studied in the past decades, showing importance in many industrial fields, such as bioengineering, optical instruments, and semiconductor technology. Displacement amplifiers provide precise motion and large stroke through a simple and low-cost way compared with other piezoelectric actuators. Those merits have opened a door for new and advanced micro devices with unprecedented performance. This paper aims to proffer a comprehensive review on the design, modeling, characteristics, and applications of flexure-based displacement amplifiers, following by pointing out the inherent drawbacks in this research area such as amplification ratio limit, parasitic motion, low lateral stiffness, low natural frequency, and discussing existing solutions and some potential research directions in those topics. Finally, a summary is concluded and the future development perspectives of the displacement amplifiers are discussed. This review contributes to giving a comprehensive understanding of the displacement amplifier, which provides guidance on designing new displacement amplifiers for improving their mechanical output performance. It is also expected to be instrumental for related researchers to understand displacement amplifiers, and to successfully select and design for specific applications.

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Design of a piezoelectric–electromagnetic hybrid vibration energy harvester operating under ultra-low frequency excitation

Song

Xiong²

2022

Microsyst Technol

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Magnetostrictive actuator with differential displacement amplification mechanism

Cited by 6 publications

References 8 publications

Review of Modeling and Control of Magnetostrictive Actuators

Review of Modeling and Control of Magnetostrictive Actuators

A Review on the Flexure-Based Displacement Amplification Mechanisms

Design of a piezoelectric–electromagnetic hybrid vibration energy harvester operating under ultra-low frequency excitation

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