Design Optimization of Moving Magnet Actuated Valves for Digital Displacement Machines

Esben Lundø Madsen, Janus Martin Thastum Jørgensen, Christian Nørgård, Michael Møller Bech

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

3 Citations (Scopus)

Abstract

High-efficiency hydraulic machines using digital valves are presently a topic of great focus. Digital valve performance with respect to pressure loss, closing time as well as electrical power consumption, is key to obtaining high efficiency. A recent digital seat valve design developed at Aalborg University utilizing moving coil actuation, meets these performance demands but is challenged by practical issues. This paper builds upon that design by proposing a retrofit which preserves both the seat valve topology and the outer dimensions, but utilizes moving magnet actuation. Through constrained multi-objective optimization, six initial topologies and three derived topologies, including designs with one, two and four coils, are optimized with respect to overall efficiency. Apart from the actuator, the flow forces on the seat valve geometry is modeled using CFD and included in optimization. In simulation the final optimized design closes in 2.1 ms, has a pressure drop of 0.8 bar at 150 l/min and yields a digital displacement machine average chamber efficiency of 98.9%. The design is simple in construction and uses a single coil, positioned outside the pressure chamber, eliminating the need for an electrical interface to the pressurized valve chamber.
Original languageEnglish
Title of host publicationProceedings of ASME/BATH 2017 Symposium on Fluid Power and Motion Control
Number of pages12
PublisherAmerican Society of Mechanical Engineers
Publication dateOct 2017
ISBN (Electronic)978-0-7918-5833-2
DOIs
Publication statusPublished - Oct 2017
Event2017 Bath/ASME Symposium on Fluid Power and Motion Control, FPMC2017 - Sarasota, United States
Duration: 16 Oct 201719 Oct 2017

Conference

Conference2017 Bath/ASME Symposium on Fluid Power and Motion Control, FPMC2017
CountryUnited States
CitySarasota
Period16/10/201719/10/2017

Fingerprint

Magnets
Seats
Topology
Constrained optimization
Multiobjective optimization
Pressure drop
Computational fluid dynamics
Electric power utilization
Actuators
Hydraulics
Design optimization
Geometry

Cite this

Madsen, E. L., Jørgensen, J. M. T., Nørgård, C., & Bech, M. M. (2017). Design Optimization of Moving Magnet Actuated Valves for Digital Displacement Machines. In Proceedings of ASME/BATH 2017 Symposium on Fluid Power and Motion Control American Society of Mechanical Engineers. https://doi.org/10.1115/FPMC2017-4255
Madsen, Esben Lundø ; Jørgensen, Janus Martin Thastum ; Nørgård, Christian ; Bech, Michael Møller. / Design Optimization of Moving Magnet Actuated Valves for Digital Displacement Machines. Proceedings of ASME/BATH 2017 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2017.
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abstract = "High-efficiency hydraulic machines using digital valves are presently a topic of great focus. Digital valve performance with respect to pressure loss, closing time as well as electrical power consumption, is key to obtaining high efficiency. A recent digital seat valve design developed at Aalborg University utilizing moving coil actuation, meets these performance demands but is challenged by practical issues. This paper builds upon that design by proposing a retrofit which preserves both the seat valve topology and the outer dimensions, but utilizes moving magnet actuation. Through constrained multi-objective optimization, six initial topologies and three derived topologies, including designs with one, two and four coils, are optimized with respect to overall efficiency. Apart from the actuator, the flow forces on the seat valve geometry is modeled using CFD and included in optimization. In simulation the final optimized design closes in 2.1 ms, has a pressure drop of 0.8 bar at 150 l/min and yields a digital displacement machine average chamber efficiency of 98.9{\%}. The design is simple in construction and uses a single coil, positioned outside the pressure chamber, eliminating the need for an electrical interface to the pressurized valve chamber.",
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Madsen, EL, Jørgensen, JMT, Nørgård, C & Bech, MM 2017, Design Optimization of Moving Magnet Actuated Valves for Digital Displacement Machines. in Proceedings of ASME/BATH 2017 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2017 Bath/ASME Symposium on Fluid Power and Motion Control, FPMC2017, Sarasota, United States, 16/10/2017. https://doi.org/10.1115/FPMC2017-4255

Design Optimization of Moving Magnet Actuated Valves for Digital Displacement Machines. / Madsen, Esben Lundø; Jørgensen, Janus Martin Thastum; Nørgård, Christian; Bech, Michael Møller.

Proceedings of ASME/BATH 2017 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2017.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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AB - High-efficiency hydraulic machines using digital valves are presently a topic of great focus. Digital valve performance with respect to pressure loss, closing time as well as electrical power consumption, is key to obtaining high efficiency. A recent digital seat valve design developed at Aalborg University utilizing moving coil actuation, meets these performance demands but is challenged by practical issues. This paper builds upon that design by proposing a retrofit which preserves both the seat valve topology and the outer dimensions, but utilizes moving magnet actuation. Through constrained multi-objective optimization, six initial topologies and three derived topologies, including designs with one, two and four coils, are optimized with respect to overall efficiency. Apart from the actuator, the flow forces on the seat valve geometry is modeled using CFD and included in optimization. In simulation the final optimized design closes in 2.1 ms, has a pressure drop of 0.8 bar at 150 l/min and yields a digital displacement machine average chamber efficiency of 98.9%. The design is simple in construction and uses a single coil, positioned outside the pressure chamber, eliminating the need for an electrical interface to the pressurized valve chamber.

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Madsen EL, Jørgensen JMT, Nørgård C, Bech MM. Design Optimization of Moving Magnet Actuated Valves for Digital Displacement Machines. In Proceedings of ASME/BATH 2017 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers. 2017 https://doi.org/10.1115/FPMC2017-4255