• Corpus ID: 898851

Digital Fluid Power – State of the Art

@inproceedings{Linjama2011DigitalFP,
  title={Digital Fluid Power – State of the Art},
  author={Matti Linjama},
  year={2011}
}
Digital fluid power technology has rapidly achieved the status of potential and serious fluid power technology. Several research branches exist each having their own strengths and challenges. Applications are also emerging. This paper summarizes the research results so far and tries to find development trends and estimate the future of digital fluid power. 
Is the future of fluid power digital?
TLDR
Digital fluid power is presented as a new branch of fluid power which offers high potential for innovative solutions and first applications will be brought to industry soon.
On Fluid Power Pump and Motor Design : Tools for Noise Reduction
Noise and vibration are two of the main drawbacks with fluid power  systems. The increasing requirements concerning working environment as well as machines' impact on surroundings put components an
DIGITAL HYDRAULIC MOTORS
General trends for reducing the energy consumption have led through innovation, in the case of hydraulics as well, to new solutions for equipment which could meet this challenge. Since the 1990s the
Discussion: Is the future of fluid power digital?
Imagine the scenario in which an electric motor company came to the (correct) conclusion that the power density of hydraulic pumps and motors is much higher than that of electric generators and
Development of a Dual Supply H-Bridge Amplifier for High Speed Actuation of Digital Hydraulic Switching Valves
TLDR
Measurements with a corresponding prototype prove that a fast, precise and very repeatable valve actuation can be achieved if the power electronics is conceived according to the characteristics of high speed valves.
Safety analysis on digital hydraulics : Redundancy study for aviation applications
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Performance of a flow control valve with pilot switching valve
TLDR
A two-stage proportional flow control valve is presented, in which the main stage is a flow amplifying valve, and the pilot stage consists of several switching valves with pulse width modulation control strategy.
Modelling and analysis of hydraulic step-down switching converters
In this study, a steady state analysis of step-down converter systems, considering the load losses in the inertance tube and switched valve, is presented. The model describes the behaviour of the
Linear motion control with a low-power hydraulic switching converter - Part I: Concept, test rig, simulations
TLDR
A dynamic model of the converter and the linear drive is derived and studied by simulations and it is shown that the model incorporates the relevant physical effects and that it is qualified for a flatness-based control, which is derived in Part II of the publication.
Characteristics of a piloted digital flow valve based on flow amplifier
Hydraulic switching techniques which have less throttling losses, good repeatability and can be controlled intelligently have been largely developed. The biggest challenge is the hydraulic
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