Ensuring the Reliability of an Aircraft Engine Hydraulic System

Abstract:

The article deals with the issue of ensuring the reliability of aircraft engines operation via hydraulic fluids properties monitoring. There are presented the results of the hydraulic fluid Aero Shell Fluid 41 (ASF 41) properties evaluation in the hydraulic system of a double-flow turbosupercharged aircraft engine AI-25TL. In the hydraulic fluid, there were observed the quantity and distribution of mechanical particles according to their size in accordance with the ISO Cleanliness Code, ISO 4406.There was also determined kinematic viscosity according to the standard EN ISO 3104+AC. FTIR analysis of the infrared spectrum was used to determine the degradation degree of the hydraulic fluid physical-chemical properties.

• Periodical: Applied Mechanics and Materials (Volume 616)
• Pages: 126-134
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.616.126
• Online since: August 2014
• Authors: Janka Mihalčová*, Peter Šmeringai
• Keywords: Distribution of Mechanical Particles According to their Size, FTIR, Kinematic Viscosity, Properties of Hydraulic Fluids, Quantity, Reliability of Hydraulic Systems

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