A three-link arm type vibration control device using magnetostrictive actuators

Ohmata, Kenichiro; Zaike, M.; T, Koh

doi:10.1016/s0925-8388(97)00071-6

Cited by 17 publications

(13 citation statements)

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“…Large-scale vibration tests on a three-story house with a mass of 1.6 t were conducted with in total 32 magnetostricitve devices, achieving 15% of vibration reduction up to the third mode. Ohmata et al (1997) investigated the usability of a three-link arm vibration control device, for seismic protection. For this a giant magnetostrictive actuator was made and tested for its effectiveness in vibration control.…”

Section: Magnetostrictive Smart Materialsmentioning

confidence: 99%

Smart materials in architecture for actuator and sensor applications: A review

Sobczyk

Wiesenhütter

Noennig

et al. 2021

Journal of Intelligent Material Systems and Structures

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Severe challenges such as depletion of natural resources, natural catastrophes, extreme weather conditions, or overpopulation require intelligent solutions especially in architecture. Built environments that are conceived from smart materials based on actuator and sensor functionality provide a promising approach in order to address this demand. The present paper reviews smart materials-based technologies which are currently applied or developed for application in civil structures, focusing on smart material applications for actuation or sensing. After giving a definition and categorization of smart materials, applications of the investigated materials (i.e. shape memory materials, electro- and magnetostrictive materials, piezoelectric materials, ionic polymer-metal composites, dielectrical elastomers, polyelectrolyte gels as well as magneto- and electrorheological fluids) are presented for the fields of architecture and civil engineering. While some materials are already highly advantageous in the application context, others still need further research in order to become applicable in real-world constructions. Nonetheless this review indicates their large innovation potential which should be consolidated by systematic research efforts in the near future.

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Section: Magnetostrictive Smart Materialsmentioning

confidence: 99%

Smart materials in architecture for actuator and sensor applications: A review

Sobczyk

Wiesenhütter

Noennig

et al. 2021

Journal of Intelligent Material Systems and Structures

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“…Giant magnetostrictive material (GMM) is ferromagnetic material that were developed by Clark and Belson et al In 1971 [8]. Currently, the type of GMM used most commonly is TB X Dy 1−x Fe y , when x = 0.23∼0.5 and y = 1.9∼2.0.…”

Section: Introductionmentioning

confidence: 99%

“…Currently, the type of GMM used most commonly is TB X Dy 1−x Fe y , when x = 0.23∼0.5 and y = 1.9∼2.0. The trade name of GMM is Terfenol-D [8,9].…”

Section: Introductionmentioning

confidence: 99%

Construction and Numerical Realization of a Magnetization Model for a Magnetostrictive Actuator Based on a Free Energy Hysteresis Model

Zhang

et al. 2019

Applied Sciences

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Giant magnetostrictive actuators (GMA) driven by giant magnetostrictive material (GMM) has some advantages such as a large strain, high precision, large driving force, fast response, high reliability, and so on, and it has become the research hotspot in the field of microdrives. Research shows there is a nonlinear, intrinsic relationship between the output signal and the input signal of giant magnetostrictive actuators because of the strong coupling characteristics between the machine, electromagnetic field, and heat. It is very complicated to construct its nonlinear eigenmodel, and it is the basis of the practical process of giant magnetostrictive material to construct its nonlinear eigenmodel. Aiming at the design of giant magnetostrictive actuators, the magnetization model based on a free-energy hysteresis model has been deeply researched, constructed, and put forward by Smith, which combines Helmholtz–Gibbs free energy and statistical distribution theory, to simulate the hysteresis model at medium or high driving strengths. Its main input and output parameters include magnetic field strength, magnetization, and mechanical strain. Then, numerical realization and verification of the magnetization model are done by the Gauss–Legendre integral discretization method. The results show that the magnetization model and its numerical method are correct, and the research results provide a theoretical basis for the engineering application of giant magnetostrictive material and optimized structure of giant magnetostrictive material actuators, which have an important practical application value.

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“…Arm-type dampers were developed to suppress such vibrations as will change directions or intricate three-dimensional vibrations. In previous studies, the authors developed semiactive and passive types of three link arm-type dampers (1) (2) , two link arm-type dampers (3)- (5) and one link arm-type dampers with a link of variable length (6) (7) . Each arm-type damper has six degrees of freedom and gives damping in three translational and rotational directions.…”

Section: Introductionmentioning

confidence: 99%

A Study of a Human Arm-Type Damper with Two Links and Three Joints

Ohmata

Matsuoka

Kohno

2009

JSDD

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In this paper, a new type of arm-type damper consisting of two links and three joints (human type joints with friction) has been developed. The damper is able to suppress six modes of vibration of a machine, three in translational modes and three in rotational modes. The trial damper was made and its resisting force characteristics in three translational and three rotational directions were discussed theoretically and experimentally. The seismic responses of a three-degree-offreedom translational system and a two-degree-of-freedom translational-rotational system and the frequency responses of a single-degree-of-freedom translational system, which consist of a mass and four coil springs and supported by the damper, were measured using a three-dimensional permanent magnet type shaking table. The experimental results were compared with the calculated ones, and the effects of vibration suppression of the damper in three translational and rotational directions and the propriety of the calculations were confirmed.

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A three-link arm type vibration control device using magnetostrictive actuators

Cited by 17 publications

References 0 publications

Smart materials in architecture for actuator and sensor applications: A review

Smart materials in architecture for actuator and sensor applications: A review

Construction and Numerical Realization of a Magnetization Model for a Magnetostrictive Actuator Based on a Free Energy Hysteresis Model

A Study of a Human Arm-Type Damper with Two Links and Three Joints

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