Design and Analysis of a Three-Degree-of-Freedom Linear Oscillatory Actuator

Heya, Akira; Hirata, Katsuhiro; Matsushita, Tetsuya; Kono, Yoshinori

doi:10.1109/tmag.2019.2952473

Cited by 12 publications

(5 citation statements)

References 7 publications

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“…To solve these problems, various types of multiple-DOF OAs are proposed and developed [5][6][7][8][9]. The multiple-DOF OA can generate multiple-DOF motion only one device.…”

Section: Introductionmentioning

confidence: 99%

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Design and Analysis of Five-Degree-of-Freedom Oscillatory Actuator

Heya

Hirata

2022

IEEJ Journal IA

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Oscillatory actuators (OAs) are used in various fields, such as industrial equipment and home appliances. For example, they are applied in active vibration isolation tables, vibration test devices, and haptic interfaces. They have a multiple-degree-of-freedom (DOF) mechanism with short-stroke. Such conventional mechanisms consist of some actuators and links, therefore, the vibration center is shifted and the size and weight increase. To solve these problems, various types of multiple-DOF OAs have been developed. However, a five-DOF OA has been not proposed. To further realize the functionality by increasing the DOF, we propose a five-DOF OA. Its basic structure and operating principle are described. The thrust and torque characteristics are investigated by a magnetic field analysis using a three-dimensional finite element method. The analysis results indicate that the proposed actuator can drive five-DOF without interference between other axes.

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“…To solve these problems, various types of multiple-DOF OAs are proposed and developed [5][6][7][8][9]. The multiple-DOF OA can generate multiple-DOF motion only one device.…”

Section: Introductionmentioning

confidence: 99%

“…The three-DOF resonance actuator can drive three-DOF with four-coils and fourphase [7,8], it has an axial gap structure. The three-DOF OA can drive three-DOF with three-coils and three-phase [9], it has a cubic shape. However, a five-DOF OA has been not proposed.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Five-Degree-of-Freedom Oscillatory Actuator

Heya

Hirata

2022

IEEJ Journal IA

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“…However, for driving in each axis, there is mutual interference of forces. Heya et al proposed the 3-DOFOA that consists of three coils and can be driven in three axes without interference [18]. However, outside of the magnetic circuit, these traditional 3-DOFOAs require complex and large support mechanisms, increasing the device's size and weight.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of a CompactThree‐Degree‐of‐FreedomOscillatory Actuator for Haptic Device

Nakamura

Heya

Hirata

2022

IEEJ Transactions Elec Engng

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Asymmetric vibration-based haptic devices are being developed to apply to various applications such as navigation systems. A mobile-type three-dimensional haptic device requires a compact structure. Then, we focused on a three-degree-of-freedom oscillatory actuator (3-DOFOA). However, conventional 3-DOFOAs are large in size and weight because they need a large and complicated support mechanism on the outside of the magnetic circuit. Furthermore, they do not satisfy both the requirement of similar force characteristics in each axis and no interference. To address these issues, we propose a novel 3-DOFOA integrated with a support mechanism that has equal static characteristics in each axis without interference. The proposed structure and operating principle are described in detail in this paper, as well as the force, frequency characteristics, and acceleration responses. As these results, it can be concluded that the proposed actuator is suitable for use as a haptic device.

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“…In recent years, various multi-DOF motors have been developed and designed to achieve the multi-axis or multi-DOF motion. These multi-DOF motors include 2-DOF motors [7][8][9][10][11][12][13], 3-DOF motors [14][15][16], 4-DOF motors [17], and 5-DOF motors [18] depending on their applications. For example, Dehel et al presented a 2-DOF motor with an unlimited angular range [7].…”

Section: Introductionmentioning

confidence: 99%

“…Kwon and Ro proposed accurate and rapid analysis and optimal design methods for 2-DOF motor [13]. Heya et al proposed a novel 3-DOF linear oscillatory motor [16]. Chang et al proposed a novel 4-DOF motor for laser beam stabilization [17].…”

Section: Introductionmentioning

confidence: 99%

Analytical Investigation on Torque of Three-Degree-of-Freedom Electromagnetic Actuator for Image Stabilization

2021

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In keeping with consumers’ preferences for electromagnetic motors of ever smaller power consumption, it is necessary to improve the power efficiency of the electromagnetic motors used in unmanned aerial vehicles and robots without sacrificing their performance. Three-degree-of-freedom (3-DOF) spherical motors have been developed for these applications. Accordingly, this study modifies the 3-DOF spherical motor proposed by Hirata’s group in a previous study (Heya, A.; Hirata, K.; Niguchi, N., Dynamic modeling and control of three-degree-of-freedom electromagnetic actuator for image stabilization, IEEE Transactions on Magnetics 2018, 54, 8207905.) to accomplish a 3-DOF spherical motor for camera module with higher torque output in the large rotation angle. The main contribution of this study is to improve the static torque in the X- and Y-axes with an improved electromagnetic structure and a particular controlling strategy. In the structural design, eight symmetrical coils with specific coil combination are used instead of conventional four symmetrical coils. In this study, the development of the proposed 3-DOF spherical motor was constructed and verified by using a 3D finite-element method (3D FEM). The simulation results show that the proposed 3-DOF spherical motor has higher torque output in the large rotation angle when compared to the original 3-DOF spherical motor.

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Design and Analysis of a Three-Degree-of-Freedom Linear Oscillatory Actuator

Cited by 12 publications

References 7 publications

Design and Analysis of Five-Degree-of-Freedom Oscillatory Actuator

Design and Analysis of Five-Degree-of-Freedom Oscillatory Actuator

Performance Analysis of a CompactThree‐Degree‐of‐FreedomOscillatory Actuator for Haptic Device

Analytical Investigation on Torque of Three-Degree-of-Freedom Electromagnetic Actuator for Image Stabilization

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