Research in the Area of Material Failure in Aeroengine

Abstract:

The present investigation focuses on the influence of failure of material during maintenance of aeroengines installed in helicopters. This research study is on fifty eight engines withdrawn prematurely over a period of five years from the helicopters operated around the country before the completion of their actual life periods due to the failures of materials as serious defects. The effect of the trend of these defects was investigated thoroughly based on the analysis reports on the observation from the stripping laboratory test and the study on the investigation done thereafter at the defect investigation agency of the engine at overhaul shop. The entire study of these defects is carried out from the facts received from the analytical and experimental investigations. The remedial measures are identified and established after a deep evaluation. The causes of the factors attributing to the development of defects are found out by research analysis. They are mainly based on design, qualities of material, poor standard in quality control procedures and maintenance practices. They are implemented by the users for the achievement of reduction in the occurrence of such defects towards a significant improvement in the subsequent maintenance of aeroengines. Further, the remedial measures, besides prevention of occurrence of such defects has a great impact on the development of a high degree of aeroengine maintenance The final results of this research study are prepared as suggested measures to be forwarded for implementation to manufactures, overhaul agency and operators

• Periodical: Applied Mechanics and Materials (Volumes 766-767)
• Pages: 562-570
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.766-767.562
• Online since: June 2015
• Authors: B.S.M. Augustine*
• Keywords: Analysis Report, Attributing, Defect, Investigation, Maintenance Practices, Quality Control Procedures, Remedial Measures, Stripping Laboratory

References

[1] Ashby M.J. and Sheuren W.J. (2000), Intelligent maintenance advisor for turbine engines, Proceedings of 2000 IEEE Aerospace conference, Big Sky, NT, USA, Vol 6, p.211–219.

DOI: 10.1109/aero.2000.877897

[2] DGCA Mandatory Modification List – Allouette – III Engines.

[3] Embrechts M.J., Schweizerhof A.L., Bushman M. and Sabatella M.H. (2000), Neutral network modeling of turbofan parameters, Proceeding of AME Turbo Expo 2000, Munich, German, Technical Paper No. 2000 – GT – 0036.

DOI: 10.1115/2000-gt-0036

[4] Federal Aviation Administration Power Plant Hand Book U.S. Department of Transportation, Flight Standards National Field Office, Oklahoma 73125.

[5] Friend C.H. (1994), Aircraft Maintenance Management, Longman Scientific and Technical Publications.

[6] Goldberg D.E. (1989), Genetic Algorithms is search, Optimization, and machine learning, Addison – Wesley publishing company, Inc. Reading, Massachusetts.

[7] Hess S.M., Biter W.J. and Hollingsworth S.D. (2001), An evaluation method for application of condition–based maintenance technologies, Proceedings of Annual Reliability and maintainability Symposium, Philadelphia, PA, pp.240-245.

DOI: 10.1109/rams.2001.902474

[8] Irwin E. Treager (1997), Aircraft Gas Turbine Engine Technology, Third Edition, McGraw- Hill Series New York.

[9] Joe Schafer, Helicopter Maintenance, Jeppesen. Sanderson Training Products, 55, I nverness Drive East, Englewood, C080112-5498.

[10] Kasprzynski G., Roemer M.J., Brington C. and Cambel R (2001), Enhanced FMECA: Integrating health management design and traditional failure analysis, 55th Meeting of the MEPT–2001, Virginia Beach, Virginia, pp.261-274.

[11] Knezevic J. (1999), Systems Maintainability – Analysis, Engineering and Management; Chapman and Hall.

[12] Kumar U.D., Crocker J., Knezevic J. and El-Haram M. (1996), Reliability, maintainability andsupportability on the Business and Economics of civil Air Transport Aircraft Maintenance and support, University of Exeter, UK.