The buckling beam as actuator element for on-off hydraulic micro valves

Scheidl, Rudolf; Scherrer, Matthias; Zagar, Philipp

doi:10.1504/ijhm.2021.114172

Cited by 4 publications

(2 citation statements)

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“…Hydraulic pumps [1] have received considerable attention in recent years because of their strategic importance and economic value [2]. This tendency has encouraged the community to shift its research focus to issues connected to hydraulic pumps [3].…”

Section: Introductionmentioning

confidence: 99%

Advanced Control Systems for Axial Piston Pumps Enhancing Variable Mechanisms and Robust Piston Positioning

Feng,

Jian,

et al. 2023

Applied Sciences

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Axial piston pumps provide a number of benefits, including strong pressure resistance, high efficiency, high transmission power, a broad speed range, and a long lifespan. These characteristics have led to their widespread usage in naval applications, construction machines, and hydraulic machinery. On the other hand, axial piston pumps frequently display reduced operating speeds as well as instability because of their inherently nonlinear properties. In this study, a mathematical model of these changeable (variable) processes is developed using a mix of theoretical calculations and acquired data. An investigation of variable mechanism control in axial piston pumps is carried out centered on robust control methods, and the controller is constructed utilizing robust H∞ theory. In terms of resilience, control precision, and system reaction time, simulations show that the H controller surpasses the PID controller.

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Section: Introductionmentioning

confidence: 99%

Advanced Control Systems for Axial Piston Pumps Enhancing Variable Mechanisms and Robust Piston Positioning

Feng,

Jian,

et al. 2023

Applied Sciences

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“…Cavitation, one kind of particularly complex multiphase flow [1], occurs in various fluidhandling devices, such as pump [2], valve [3], and nozzle [4]. The evolution process and related influence factors have been deeply investigated [5].…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation on Effects of Solid Grain Concentrations on Cavitation Evolution Around NACA0015 Hydrofoil

Han¹,

Wang²,

Yang³

et al. 2022

Proceedings of the International Conference of Fluid Power and Mechatronic Control Engineering (ICFPMCE 2022)

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Effects of solid grains with different concentrations on cavitation evolution around NACA0015 hydrofoil were investigated. The concentrations were 5%, 10%, and 20%. Variations of averaged lift and drag coefficients and lift-drag ratio under all concentration conditions were analyzed; corresponding evolution processes of cavitation bubbles were discussed. Results indicated that with the growing of the concentration, averaged lift coefficient decreased, averaged drag coefficient increased, and lift-drag ratio reduced. They were less than their counterparts in pure water cavitation flow. Cavitation bubble evolution process and distribution of streamlines were various under the effects of the concentration. With the growing of the concentration, shedding dominant frequency and Strouhal number decreased.

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Investigation of two concepts for piezo- electrically driven bistable hydraulic switching valves

Albrecht-Zagar,

Scheidl

2024

Mechatronics

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The buckling beam as actuator element for on-off hydraulic micro valves

Cited by 4 publications

References 0 publications

Advanced Control Systems for Axial Piston Pumps Enhancing Variable Mechanisms and Robust Piston Positioning

Advanced Control Systems for Axial Piston Pumps Enhancing Variable Mechanisms and Robust Piston Positioning

Numerical Investigation on Effects of Solid Grain Concentrations on Cavitation Evolution Around NACA0015 Hydrofoil

Investigation of two concepts for piezo- electrically driven bistable hydraulic switching valves

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