A giant magnetostrictive rotary actuator: Design, analysis and experimentation

Zhou, Ji‐Xun; Zhao, Heyun; Rong, Ce; Xue, Guangming

doi:10.1016/j.sna.2018.12.031

Cited by 22 publications

(10 citation statements)

References 19 publications

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“…Magneto strictive materials include nickel, Co-Ni, Fe-Al, Fe-Ni (Permalloy), Fe-Co, Co-Fe-V, CoFe 2 O 4 and NiFe 2 O 4 , and some rare earths and their alloys and compounds. Magneto strictive materials are used in several applications including actuators and sensors, ultrasonic cleaning devices medical devices, underwater sonar, industrial vibrators, vibration, and noise control systems [14]. Thermoelectric materials can directly convert heat into electricity and vice versa, based on See beck and Peltier effect.…”

Section: Classes Of Smart Materialsmentioning

confidence: 99%

Untitled

2019

MAMS

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Smart materials are a group of materials that alter its properties based on changes in their environment, thus making them stimuli-responsive materials. This study provides an overview of the six main categories of the recently used smart materials, namely, piezoelectric materials, photovoltaic materials, shape-memory materials, magneto strictive materials, thermoelectric materials, and chromogenic materials.

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Section: Classes Of Smart Materialsmentioning

confidence: 99%

Untitled

2019

MAMS

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“…From the perspective of driving principles, based on single physical effect, including thermal, ultrasonic, microhydraulic, electrostatic, piezoelectric, − fluid gradient, magnetostrictive, and optical, various energy transformation modes can provide a power source for rotational motion in terms of different transformation efficiency to mechanical energy. In order to simultaneously obtain large deformations and fast responses, by mimicking biological motions such as petal opening/closing and tendril coiling/uncoiling, , Ma et al proposed a polymer–metal composite, which exhibited a large displacement (35.3 mm, 102.3°), ultrafast response (<10 Hz), and 20 times heavier load capacity .…”

Section: Introductionmentioning

confidence: 98%

Piezoelectric-Thermal Coupling Driven Biomimetic Stick–Slip Bidirectional Rotary Actuator for Nanomanipulation

Xiong

et al. 2021

Nano Lett.

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Substantial improvement of rotation driving accuracy is urgently needed and facing challenges. Miniature bidirectional rotary actuators with high-precision and controllable fallback rate require novel driving principles. Here, on the basis of a proposed biomimetic stick–slip motion principle, a novel piezoelectric-thermal coupling bidirectional rotary actuator was developed. The integrated mantis grasping leglike biomimetic claws and heating rods could realize the clockwise macroscopic rotation and anticlockwise macroscopic fallback of a cylindrical rotator, generated by piezoelectric stick–slip and thermal expansion, respectively. The rotation fallback was effectively inhibited at relatively lower frequencies and higher voltages, as a slight fallback rate of 0.095 was confirmed in term of 0.5 Hz and 80 V. An extraordinary piezoelectric-driven macroscopic rotation resolution of 0.2 μrad and thermal-induced microscopic resolution of 0.00073°/°C were experimentally revealed with the aid of real-time observation of the clockwise slow sticking and anticlockwise instantaneous slipping processes by using three-dimensional optical imaging.

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“…Thus, our major innovations lie in: (1) a new scheme and the corresponding optimization design method are proposed and performed based on the theoretical model of the cubic Stewart platform for simultaneous considering the requirements of output stroke and passive vibration isolation; (2) a giant magnetostrictive actuator (Niu et al, 2017; Sun et al, 2020; Zhou et al, 2019) which shows a better output performance in low frequency is adopted and redesigned for ensuring a safety spacecraft magnetic environment; (3) a two-level compliant amplifier characterized by compact structure, no friction, no wear, and without lubrication (Chen et al, 2016; Mohsen and Hamid, 2018; Wang et al, 2019), is constructed for compensating the shortage of output stroke and utilized to acquire the required passive vibration isolation capability; (4) three unloading devices are developed for resisting static deformations caused by sensitive payloads; (5) a two-loop control strategy is proposed based on feedforward and feedback control for assisting the hardware to realizing the simultaneous positioning and vibration suppression.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on a new sensitive payload platform with simultaneous positioning and vibration suppression capabilities

Sun

Bai

et al. 2021

Journal of Vibration and Control

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Precision positioning and vibration isolation are two main challenges for the sensitive payloads, to realize high quality observation. It means that on the one hand the sensitive payload should keep pace with the changes of target location for achieving alignment; on the other hand, the micro-vibrations from space cabin equipment should be suppressed for avoiding image jitter. A six-degree-of-freedom platform with simultaneous positioning and vibration suppression capabilities is proposed for replacing the original scheme with series connection of a positioning platform and a vibration isolation platform. The theoretical model of the platform with rigid payload is established and then is utilized as a constraint to conduct the passive vibration suppression optimization. Subsequently, a finite element model is constructed to verify the optimization results. Finally, experimental setups are built and tests are carried out to validate the performances. The test results demonstrate that the proposed platform possesses good simultaneous positioning and vibration suppression capabilities.

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A giant magnetostrictive rotary actuator: Design, analysis and experimentation

Cited by 22 publications

References 19 publications

Untitled

Untitled

Piezoelectric-Thermal Coupling Driven Biomimetic Stick–Slip Bidirectional Rotary Actuator for Nanomanipulation

Experimental investigation on a new sensitive payload platform with simultaneous positioning and vibration suppression capabilities

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