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Abstrakty
The article presents principles of the most suitable support conditions which enable elimination of deflections and elastic deformations of crankshafts under their self-weight. On the basis of the formulated principles sample calculations of force values of support reactions were performed. This guarantees zero value of deflections on main journals depending on the angle of rotation of the shaft, applying available programme of strength calculations Nastran FX 2010. The obtained results have been approximated with a mathematical equation applying the calculating method based on the harmonic analysis theory. Then a comparative assessment of the force diagram (the forces were obtained via strength calculations and mathematical model including so called mutual inter-correlation coefficient) was made. The obtained results of comparative analysis showed high correspondence between the compared diagrams. Presented procedures of determining the required forces ensuring elimination of deflections and elastic deformations can be applied to measurements of crankshaft geometrical deviations realized on the basis of a measuring system with, so called, flexible support of a measured object.
Wydawca
Rocznik
Tom
Strony
191--195
Opis fizyczny
Bibliogr. 13 poz., fig., tab.
Twórcy
autor
- Maritime University of Szczecin, Poland
Bibliografia
- 1. Adamczak, S. (1998). Odniesieniowe metody pomiaru zarysów okrągłości części maszyn. Monografie, Studia, Rozprawy. Politechnika Świętokrzyska, Kielce.
- 2. Adamczak, S. and Makieła, W. (2007). Metrologia w Budowie Maszyn, zadania z rozwiązaniami. Wydanie drugie zmienione. Warszawa: WNT.
- 3. Adamczak, S., Makieła, M. and Stępień, K. (2010). Investigating advantages and disadvantages of the analysis of a geometrical surface structure with the use of Fourier and wavelet transform. Metrology and Measurement Systems, vol. XVII, No. 2.
- 4. Azirjawi, A, and Basheer, S.K. (2018). New design solution for crankshaft. Proceedings of the asme international mechanical engineering congress and exposition, 2017, vol 2.
- 5. Fonte, M., Duarte, P., Anes, V., Freitas, M. and Reis, L. (2015). On the assessment of fatigue life of marine diesel engine crankshafts. Engineering failure analysis, vol. 56, p. 51-57.
- 6. Janecki, D., Adamczak, S. and Stępień, K. (2008). An analysis of the applicability of the cross-correlation function to the comparision of cylindrical profiles. Pomiary Automatyka Kontrola, Vol. 54, No. 5, pp. 237–243.
- 7. Janecki, D., Adamczak, S. and Stępień, K. (2004). Analysis of the accuracy of reference cylindricity measurements using the normalized cross correlation function. Science report, Project PL-127, CEEPUS Kielce University of technology, pp. 57-66.
- 8. Nozdrzykowski, K. (2013). Metodyka pomiarów geometrycznych odchyłek powierzchni walcowych wielkogabarytowych elementów maszyn na przykładzie wałów korbowych silników okrętowych. Wydawnictwo Naukowe Akademii Morskiej w Szczecinie.
- 9. Nozdrzykowski, K. and Janecki, D. (2014). Comparative studies of reference measurements of cylindrical surface roundness profiles of large machine components. Metrology and Measurement System, vol. XXI, No. 1, pp. 67-76.
- 10. Sun, J., Wang, J. and Gui, C. (2010). Whole crankshaft beam-element finite-element method for calculating crankshaft deformation and bearing load of an engine. Proceedings of the institution of mechanical engineers part j-journal of engineering tribology, vol. 224, p. 299-303.
- 11. Quan, W., Wei, J., Zhao, YW., Sun, LH. and Bianl, XY. (2011). Development of an Automatic Optical Measurement System for Engine Crankshaft. 2011 International Conference on Computational Science and Applications, p. 68-75.
- 12. Walczyk, W., Milenin, A. and Pietrzyk, M. (2011). Computer Aided Design of New Forging Technology for Crank Shafts. Steel research international, vol. 82, p. 187-194.
- 13. Zhao, Y. and Cao, SQ. (2013). Modal Analysis of Large Marine Crankshaft. Frontiers of manufacturing and design science III, pts 1 and 2, vol. 271-272, p. 1022-1026.
Uwagi
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-2083e724-3a3c-4afa-9fbd-130599ad3efd