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Dynamic analysis of a bistable actuator for digital hydraulics

Dynamic analysis of a bistable actuator for digital hydraulics

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© The Institution of Engineering and Technology
Published

A fast and small electromagnetic actuator, which requires a small amount of work to switch between two stable positions, for the use in digital hydraulics, is presented. A dynamic study of the bistable actuator as part of a new kind of hydraulic on/off valve is carried out. A prototype is built and measured to verify the analysis. The results show that with careful elaboration the design is feasible. Furthermore, the response times depend on driving frequencies and an optimal current density for minimal energy consumption in cyclic action can be found. A single on/off valve is a critical part of a digital hydraulic system.

Inspec keywords: flow control; hydraulic systems; digital control; electromagnetic actuators; valves; current density

Other keywords: dynamic analysis; cyclic action; current density; response times; minimal energy consumption; hydraulic on/off valve; digital hydraulic system; bistable actuator; electromagnetic actuator

Subjects: Control of hydraulic systems; Other final control equipment; Control technology and theory (production); Level, flow and volume control; Fluid mechanics and aerodynamics (mechanical engineering)

References

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