Control of Activity of Aircraft Engines by Analysis of Wear Debris Particles in Terms of Shape and Size

Abstract:

The contribution deals with use of semi-automated method of magnetic separation of particles in order to control mechanical system of aircraft engines. There are three levels of machine wear characterized by means of wear debris particle analysis in the lubrication system of aircraft engines. The shape and size of wear debris particles formed due to machine wear arise immediately in case of wear change thus this method is extremely suitable to control mechanical system washed by lubricant. Analysis of actual samples of lubricating oils containing several types of wear debris at the same time resulted in finding out and characterizing the levels of wear, from standard up to critical one. The contribution describes typical types of aircraft engine lubrication system wear with allocation of the wear level to particular pictures of wear debris particles.

• Periodical: International Journal of Engineering Research in Africa (Volume 18)
• Pages: 136-143
• DOI: https://doi.org/10.4028/www.scientific.net/JERA.18.136
• Online since: October 2015
• Authors: Janka Mihalčová*, Miroslav Rimár
• Keywords: Aircraft Engine, Control of Activity, Magnetic Separation, Wear Debris, Wear Level

References

[1] B.J. Roylance, T.M. Hunt, The wear debris analysis handbook, Coxmoor Publishing Company, Oxford, UK, (1999).

[2] P. Blaškovič, J. Balla, M. Dzimko, Tribology (Tribológia), ALFA, Bratislava, 1990 (in Slovak).

[3] N. Govindarajan, R. Gnanamoorthy, Ferrography – A procedure for measuring wear rate, Indian Journal of Engineering &Materials Science 15 (2008) 377-381.

[4] S.M. Laghari, A.O. Memon, A.G. Khuwaja, Knowledge Based Wear Particle Analysis, International Scholarly and Scientific Research & Innovation 1/12 (2007) 892-896.

[5] R. Surapol, Wear particle analysis - utilization of quantitative computer image analysis: A review, Tribology International 38 (2005) 871-878.

DOI: 10.1016/j.triboint.2005.03.013

[6] V. Leavers, New Advances in Wear Debris Analysis, Machinery lubrication 8 (2012), Information on http: /www. machinerylubrication. com/Read/29029/new-advances-in-wear-debris-analysis.

[7] B. Fitch, Anatomy of wear debris, Machinery lubrication 10 (2013), Information on http: /www. machinerylubrication. com/Read/29537/wear-debris-anatomy.

[8] R.K. Upadhyay, Microscopic technique to determine various wear modes of used engine oil. Journal of Microscopy and Ultrastructure 1 (2013) 111-114.

DOI: 10.1016/j.jmau.2013.09.002

[9] R. Majdan, Z. Tkáč, P. Ševčík, Š. Drabant, Š. Jánošík, The Test of Hydrostatic Pump and Hydraulic Fluids by Department of Vehicles and Heat Devices, Proc. of Interfaces'08, Sopron, Slovnaft - Member of the MOL Group, 2008, pp.152-159.

[10] S. Ebersbach, Z. Peng, N.J. Kessissoglou, The investigation of the condition and faults of a spur gearbox using vibration and wear debris analysis techniques, Wear 260 (2006) 16-24.

DOI: 10.1016/j.wear.2004.12.028

[11] A. Panda, M. Jančík, J. Jurko, I. Pandová, Composite materials as suitable materials in industry - automotiv and aircraft used, Biosecurity and Technical, IBEN Gorzow, Poznan, 2014, pp.35-55.

[12] M. Sejkorová, Methods of tribotechnical diagnostics (Metody tribotechnické diagnostiky) VSB-Technical University, Ostrava, 2013 (in Czech).

[13] M.C. Isa, N.H.N. Yusoff, N. Hasril, S.D.Y. Mohd, M.M. Muhammad, M.N. Irwan, Ferrographic analysis of wear particles of various machinery systems of a commercial marine ship, Procedia Engineering 68 (2013) 345-351.

DOI: 10.1016/j.proeng.2013.12.190

[14] J.A. Williams, Wear and wear particles—some fundamentals, Tribology International 38 (2005) 863-870.

DOI: 10.1016/j.triboint.2005.03.007

[15] P. Čačko, T. Krenický, Impact of lubrication interval to operating status of bearing, Applied Mechanics and Materials 616 (2014) 151-158.

DOI: 10.4028/www.scientific.net/amm.616.151

[16] J. Mihalčová, I. Čorný, M. Rimár, Diagnosing a state of auxiliary gas turbine engine by tribotechnical diagnostics methods, in: Operation and Diagnostics of Machines and Production Systems Operational States: Scientific Papers Vol. 3, RAM-Verlag, Lüdenscheid, 2010, pp.84-88.