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Journals / International Journal of Aeronautics and Astronautics / 2022 / Cilt: 3 - Sayı: 3

Investigation of thermal behavior and orifice flow characteristics of aeronautic hydraulic servo-proportional valve spool-sleeve structure with numerical simulations

Soner ŞEN
Rıza Deniz ŞİMŞEK
Pages
120–131
Publication Date
2022-12-31
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In addition, it can be said that hydraulic turbulences are effective in dispersing polluting particulate matter for all three spool strokes at a pressure difference of 35 bar.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, the mechanical behavior under highest thermal conditions and flow characteristics of the hydraulic fluid of the servo-characterized proportional valve, which is one of the indispensable components of the aviation industry and used for hydraulic flow control, were investigated numerically.
📊
Key Findings & Data:In the simulations, 50, 75 and 100 °C were selected as temperatures, and 0.2 mm, 0.6 mm and 1.2 mm spool stroke openings were used for hydrodynamic flow.
💡
Conclusion & Impact:In addition, it can be said that hydraulic turbulences are effective in dispersing polluting particulate matter for all three spool strokes at a pressure difference of 35 bar.
🔬Design:Lab & Field Experiment
📍Scope:Comprehensive Sample
⚙️Variables:Servo-proportional valve · Thermal stress · Hydraulic orifice

Abstract

In this study, the mechanical behavior under highest thermal conditions and flow characteristics of the hydraulic fluid of the servo-characterized proportional valve, which is one of the indispensable components of the aviation industry and used for hydraulic flow control, were investigated numerically. In the simulations, 50, 75 and 100 °C were selected as temperatures, and 0.2 mm, 0.6 mm and 1.2 mm spool stroke openings were used for hydrodynamic flow. Simulations were carried out for a pressure difference of 35 bar. As a result of the analysis, it was observed that there was no restriction in the movement of the spool-sleeve structure for a temperature of 75°C, excessive friction occurred in the spool-sleeve structure at 100°C and the movement was restricted. In addition, it can be said that hydraulic turbulences are effective in dispersing polluting particulate matter for all three spool strokes at a pressure difference of 35 bar.

Özet

In this study, the mechanical behavior under highest thermal conditions and flow characteristics of the hydraulic fluid of the servo-characterized proportional valve, which is one of the indispensable components of the aviation industry and used for hydraulic flow control, were investigated numerically. In the simulations, 50, 75 and 100 °C were selected as temperatures, and 0.2 mm, 0.6 mm and 1.2 mm spool stroke openings were used for hydrodynamic flow. Simulations were carried out for a pressure difference of 35 bar. As a result of the analysis, it was observed that there was no restriction in the movement of the spool-sleeve structure for a temperature of 75°C, excessive friction occurred in the spool-sleeve structure at 100°C and the movement was restricted. In addition, it can be said that hydraulic turbulences are effective in dispersing polluting particulate matter for all three spool strokes at a pressure difference of 35 bar.

🔖

Cite This Article

ŞEN, S., ŞİMŞEK, R. D. (2022). Investigation of thermal behavior and orifice flow characteristics of aeronautic hydraulic servo-proportional valve spool-sleeve structure with numerical simulations. International Journal of Aeronautics and Astronautics, Cilt: 3 - Sayı: 3, 120–131. https://ajindex.com/articles/873480

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