Computer Design of Compressor Impellers of Increased Fatigue Strength

Abstract:

High cycle fatigue behavior of the compressor impeller is investigated. On the basis of numerical calculations of the stress-strain state of wheel the prognosis of life time is done. The results show relations between the number of cycles to failure and maximally possible stresses and displacements. Relation of cumulative fatigue damage is researched depending on the number of cycles for the different modes of vibration on resonant frequencies.

• Periodical: Applied Mechanics and Materials (Volume 630)
• Pages: 311-317
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.630.311
• Online since: September 2014
• Authors: Gennadiy Lvov, Victor Levashov, Olga Kostromitskaya*
• Keywords: Cyclic Loading, Damage, High Cycle Fatigue, Impeller, Life Cycle, Life Time

References

[1] ASME Boiler and Pressure Vessel Code, Section VIII, Rules for construction of pressure vessels, Division 2- Alternative rules, ASME, (2003).

DOI: 10.1115/1.859872.ch23

[2] European Standard for Unfired Pressure Vessels, EN 13445: 2002, BS EN 13445: 2002, BSI, London, (2002).

DOI: 10.3403/30159065

[3] V.V. Bolotin, Prediction of resources of machines and structures [In Russian], Mashinostroenie, Moscow, (1984).

[4] A.S. Pronikov, Parametric reliability of machines, Moscow, Bauman MSTU Publ., (2002).

[5] G.P. Karzov, B.Z. Margolin, V.A. Shvetsova, Physic-mechanical modeling of fracture processes [In Russian], St. Petersburg, Politekhnika, (1993).

[6] D.A. Hanq, A.J. Walters, J.L. Beuth, Development of an object-oriented fatigue tool, Engineering with computers. 16 (2000) 131 – 144.

DOI: 10.1007/s003660070016

[7] Release 11. 0 Documentation for ANSYS, Structural Guide, Chapter 14. Fatigue.

[8] N.N. Berendeev, Application of ANSYS to the assessment of the fatigue life, Educational and methodological materials on professional development program New approaches to research and development of information and telecommunications systems and technologies, [In Russian], Nizhny Novgorod, (2006).

[9] V.P. Kogaev, N, A, Mahutov, A.P. Gusenkov, Calculations of machine parts and structures for strength and durability, [In Russian], Mashinostroenie, Moscow, (1985).

[10] P.A. Pavlov, Fundamentals of engineering calculations of machine elements on fatigue and long-term strength [In Russian], Mashinostroenie, Moscow, (1988).

[11] Investigation of fatigue resistance of the base metal, welded and brazed joints of steel X3CRNIMO13. 4 (W. NR1. 4313) EN10028/EN10088-3 in relation to the manufacture of impellers GPA, Economic agreement № 1373 of 06. 10. 2009, Kiev (2010).