KaydedilenlerDerginizi ekleyin

Dergiler / 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
Sayfa
120–131
Yayın Tarihi
2022-12-31
DOI
—
🏛️Bu makalenin bibliyografik verileri ve tam metin bağlantısı DergiPark üzerinden sağlanmıştır.
DergiPark Kaydı ↗
✨

Yapay Zeka Hızlı Bakış & Çıkarımlar

AI Insight
⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

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 Maddede Bu Makale

🎯
Amaç & Hipotez: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.
📊
Temel Bulgular & Veri: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.
💡
Sonuç & Katkı: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.
🔬Tür:Laboratuvar & Saha Deneyi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Servo-proportional valve · Thermal stress · Hydraulic orifice

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.

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.

🔖

Bu Makaleye Atıf Yap

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

📄 Tam Metin PDF Okuyucu

📄

PDF görüntüleyici hazırlanıyor...

Kaynakça (10)

  1. Batoli, M. 1996. Theoretical and experimental analysis of flow forces on a hydraulic directional control valve. Oleodinamica e Pneumatica, 3, 10–16.
  2. Amirante, R., Del Vescovo, G., Lippolis, A. 2006. Evaluation of the flow forces on an open centre directional control valve by means of a computational fluid dynamic analysis. Energy Conversion and Management, 47, 1748–60.
  3. Amirante, R., Del Vescovo, G., Lippolis, A. 2006. A flow forces analysis of an open center hydraulic directional control valve sliding spool. Energy Conversion and Management, 47, 114–31.
  4. Lisowski, E., Czyzycki, W. and Rajda, J. 2013. Three dimensional CFD analysis and experimental test of flow force acting on the spool of solenoid operated directional control valve. Energy Conversion and Management, 70, 220-229. Macor A. 2002 Experimental analysis on a directional valve with a flat notch metering section. In: Proceedings of the 57 Congresso Nazionale ATI, Pisa. Baudry, X., Mare, J.C. 2000. Linking CFD and lumped parameters analysis for the design of flow compensated spool valves. Proceedings of the1st FPNI-PhD symposium Hamburg, 249–58.
  5. Krishnaswamy, K., Li, P.Y. 2002. On using unstable electrohydraulic valves for control. Journal of Dynamic Systems, Measurement and Control, 124, 183. Yuan, Quinghui, Li., Perry Y. 2004. Using steady flow force for unstable valve design: modeling and experiments. Journal of Dynamic Systems, Measurement and Control, 127, 451. Amirante, R., Moscatelli, P.G., Catalano, L.A. 2007. Evaluation of the flow forces on a direct (single stage) proportional valve by means of a computational fluid dynamic analysis. Energy Conversion and Management, 48,942–953.
  6. Amirante, R., Del Vescovo, G., Lippolis A. 2006. Evaluation of the flow forces on an open centre directional control valve by means of a computational fluid dynamic analysis. Energy Conversion and Management, 47,1748–1760.
  7. Antonio P., Paolo, O., Antonio, L. 2013. Analysis of a directional hydraulic valve by a Direct Numerical Simulation using an immersed-boundary method. Energy Conversion and Management, 65, 497–506.
  8. Yaobao, Y., Jiayang, Y., Shengrong, G. 2017. Numerical study of solid particle erosion in hydraulic spool valves. Wear, 392,174–189.
  9. Yi, Y., Chen-Bo, Y., Xing-Dong, Li., Wei-jin, Z., Feng-feng, Y. 2014. Effects of groove shape of notch on the flow characteristics of spool valve. Energy Conversion and Management, 86, 1091–1101.
  10. Borghi, M., Milani, M., Paoluzzi, R. 2000. Stationary axial flow force analy