A small three-way valve using particle excitation driven by a single piezoelectric transducer for hydraulic actuator

Yamamoto, Hiroyuki; Kanda, Takefumi; Wakimoto, Shuichi; Ota, Yusuke; Takami, Hatuto; Suzumori, Koichi; Ukida, Takahiro; Nabae, Hiroyuki

doi:10.1016/j.sna.2020.112363

Cited by 6 publications

(2 citation statements)

References 12 publications

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“…Table 1 provides an overview of them and lists some characteristics. The piezoelectric and electrostatic actuators' size is usually small, and they produce strong forces with little deflection [9][10][11]. Nevertheless, their high operating voltage is a shortcoming (>100 V) [12][13][14].…”

Section: Referencesmentioning

confidence: 99%

Multi-state, three-way, normally open mini valve based on 3D printed flexible magnets using origami-inspired magnetization

Han,

Lu,

Gong

et al. 2023

Smart Mater. Struct.

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Electromagnetic mini valves for controlling pneumatic soft actuators are attracting widespread interest in recent years. However, it is known that the traditional electromagnetic valves on the millimeter scale generally have three or fewer working states, and their moving parts are usually permanent magnets with a special shape that needs expensive manufacturing. To overcome these problems, this study aims to develop a mini valve with four working states based on flexible magnets at a low fabrication cost. We take full advantage of low-cost 3D-printed magnets’ physical and magnetic properties and improve their performance through origami-inspired magnetization. A fixed-beam-structure flexible magnet is proposed to control this valve via deformation so that valve’s two sides can be driven independently, resulting in four working states. Compared with conventional sintered magnets, 3D printing magnets can be manufactured quickly and affordably. Due to the proposed valves’ more operating states than the state-of-art three-way ones, they are proven to reduce the number of small control elements in the pneumatic system. The maximum flow rate of the valve at 5 kPa air pressure was 0.81 L/min at the power consumption of 20 W. This mini valve has the potential in controlling multi-degree-of-freedom pneumatic soft actuators.

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Section: Referencesmentioning

confidence: 99%

Multi-state, three-way, normally open mini valve based on 3D printed flexible magnets using origami-inspired magnetization

Han,

Lu,

Gong

et al. 2023

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

“…5,6 Taking the advantages of light weight, simple structure, low power consumption, it has been widely used in robotic drives and other micro actuator related fields. 7 At present, GMM materials in hydraulics are mainly used to develop high response actuators to replace torque motors of traditional force feedback servo valves. Because of fast response, high precision and large output force, its application in servo valve can enhance the dynamic performance effectively.…”

Section: Introductionmentioning

confidence: 99%

Design and performance analysis of hydraulic switching valve driven by magnetic shape memory alloy

Shi

Liu

Wang

et al. 2021

Advances in Mechanical Engineering

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In this paper, the hydraulic switching valve is designed and its dynamic performance is investigated through proposing a fast response actuator with magnetic shape memory alloy (MSMA) to drive the valve. MSMA actuator with spring return is designed and a double-layered coil is constructed to achieve compactness of electromagnetic case. The dynamic characteristics of the MSMA actuator are analyzed and the step response characteristics is tested. Hydraulic switching valve with MSMA actuator is designed with poppet type. Pressure and velocity field in the flow channel under different valve opening and different inlet and outlet pressure differences are analyzed in COMSOL Multiphysics software. The dynamics of the valve poppet during opening and closing process is modeled mathematically, and simulation analysis are conducted in AMESim software to analyze the response of valve under step and square wave signals. The step response of output flow rate and pressure-flow characteristic under different operating conditions are obtained through experiment. The results show that the MSMA based valve can achieve fast response with opening time of 5 ms at the pressure difference of 1 MPa, providing a theoretical support for the development of hydraulic switching valve with high performance actuator driven by MSMA.

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A review of motor neural system robotic modeling approaches and instruments

2022

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A small three-way valve using particle excitation driven by a single piezoelectric transducer for hydraulic actuator

Cited by 6 publications

References 12 publications

Multi-state, three-way, normally open mini valve based on 3D printed flexible magnets using origami-inspired magnetization

Multi-state, three-way, normally open mini valve based on 3D printed flexible magnets using origami-inspired magnetization

Design and performance analysis of hydraulic switching valve driven by magnetic shape memory alloy

A review of motor neural system robotic modeling approaches and instruments

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