Simulations of Safety Vales for Fluid Power Systems

Domagała, Mariusz; Momeni, Hassan; Fabiś-Domagała, Joanna; Filo, Grzegorz; Lempa, Paweł

doi:10.2478/czoto-2019-0085

Cited by 3 publications

(2 citation statements)

References 27 publications

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“…Grid may be stretched and expanded, but as previous works [21][22][23] have shown problems may happen with distorted cells. Others methods like layering, sliding mesh or overset mesh [24,25] are also available. After analysis of deforming mesh capabilities a sliding mesh has been used.…”

Section: Cfd Simulationmentioning

confidence: 99%

Fluid-Structure Interaction Simulation of Flow Control Valve

Domagała

Momeni

Domagala-Fabis

et al. 2020

Materials Research Proceedings

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Section: Cfd Simulationmentioning

confidence: 99%

Fluid-Structure Interaction Simulation of Flow Control Valve

Domagała

Momeni

Domagala-Fabis

et al. 2020

Materials Research Proceedings

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“…This can be achieved by establishing the causal relationships of potential product defects taking into account risk factors. This allows for continuous improvement of the product and/or process through regular analysis and making corrections to eliminate the causes of defects and improve product properties (Fabiś-Domagała J. et al, 2019a;Fabiś-Domagała J. et al, 2019b).…”

Section: Introductionmentioning

confidence: 99%

Using the fmea method as a response to a customer complaint: a case study

Dziuba

Ingaldi

Kozina

et al. 2021

G&T

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One of the most popular quality management methods is FMEA (Failure mode and effects analysis), which is used to analyze the risk of defects in the product or process in order to eliminate them even before they occur. Its effective implementation reduces the costs of elimination of defects, which increase exponentially in subsequent processes of product implementation. FMEA is most often used where highly complex products are manufactured or where production is a multi-stage process and many departments are involved. The aim of the article was to use the PFMEA to assess the quality of window guides and to improve their quality. This analysis was carried out based on complaints of the main business partner and helped to indicate the main cause for the complaint, identify the corrective actions and check the effectiveness of the proposed corrective actions. The analysis helped avoid similar problems in related products produced on the same production line.

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A Review of the CFD Method in the Modeling of Flow Forces

Domagala,

Fabis-Domagala

2023

Energies

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Hydraulic valves are key components of fluid power systems. They control the flow rate and pressure in hydraulic lines, actuator motion, and direction. Valves that control flow rate or pressure can be divided into two main categories: spool-type valves, where control components are similar to the piston inside a sleeve with control orifices; and seat-type valves, in which a poppet inside a seat opens and closes the flow. Forces induced on valve components during oil flow are crucial to the valve’s operational capabilities. They can be calculated using a formula originating from the momentum conservation equation for a two-dimensional control volume. Increasing demands for flow rate and pressure control accuracy cause flow forces to be calculated much more accurately than when using the analytical formula. Therefore, computational fluid dynamics (CFD) simulations are the only effective tool for their calculation. This paper reviews the CFD approaches used for calculating flow forces inside hydraulic valves. It presents typical approaches used for evaluating flow forces inside hydraulic valves. The oldest and most common are conducted for a fixed position of valve components for defined flow conditions, which do not cover all components of flow forces. The dynamic flow forces can be calculated using more complex CFD models using fluid–structure interaction (FSI) techniques. This paper presents available FSI techniques for the simulation of transient flow forces, mainly for valves whose component position is determined by the forces occurring during oil flow.

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Simulations of Safety Vales for Fluid Power Systems

Cited by 3 publications

References 27 publications

Fluid-Structure Interaction Simulation of Flow Control Valve

Fluid-Structure Interaction Simulation of Flow Control Valve

Using the fmea method as a response to a customer complaint: a case study

A Review of the CFD Method in the Modeling of Flow Forces

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