Energy analysis of the propulsion shaft fatigue process in a rotating mechanical system part iii dimensional analysis

• Autorzy: Korczewski Zbigniew , Marszałkowski Konrad

Identyfikatory

DOI

10.2478/pomr-2021-0023

• Języki publikacji: EN

Abstrakty

EN

This article presents the third and last part of the problem of diagnosing the fatigue of marine propulsion shafts in terms of energy with the use of the action function, undertaken by the authors. Even the most perfect physical models of real objects, observed under laboratory conditions and developed based on the results of their research, cannot be useful in diagnostics without properly transferring the obtained results to the scale of the real object. This paper presents the method of using dimensional analyses and the Buckingham theorem (the so-called π theorem) to determine the dimensionless numbers of the dynamic similarity of the physical model of the propulsion shaft and its real ship counterpart, which enable the transfer of the results of the research on the energy processes accompanying the ship propulsion shaft fatigue from the physical model to the real object.

Słowa kluczowe

EN

ship propulsion shaft; dimensional analysis; Buckingham theorems; similarity criteria

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2021
• Tom: nr 2
• Strony: 72--77
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Korczewski Zbigniew

• Gdańsk University of Technology Narutowicza 11/12 80-233 Gdańsk Poland

autor

Marszałkowski Konrad

• Gdańsk University of Technology Narutowicza 11/12 80-233 Gdańsk Poland

Bibliografia

• 1. Z. Korczewski, “The conception of energetic investigations of the multisymptom fatigue of the simple mechanical systems constructional materials”, Journal of Polish CIMAC, 1/2012, p. 99–108, 2012.
• 2. G.A. Vignaux, “Dimensional Analysis in Data Modelling”, in: Smith C.R., Erickson G.J., Neudorfer P.O. (eds) Maximum Entropy and Bayesian Methods. Fundamental Theories of Physics (An International Book Series on The Fundamental Theories of Physics: Their Clarification, Development and Application), vol 50. Springer, Dordrecht, 1992.
• 3. E.S. Taylor, Dimensional Analysis for Engineers. Oxford University Press, 1974.
• 4. K. Parczewski and H. Wnęk, “The use of the theory of similarity to analyze the vehicle motion stability based on the research of the mobile model” (in Polish). Logistyka, 3/2012.
• 5. K. Romaniszyn, “A mobile model for car dynamics research” (in Polish). The Archives of Automotive Engineering, 1(59)/2013.
• 6. Z. Korczewski and K. Marszałkowski, “Energy analysis of propulsion shaft fatigue process in rotating mechanical system. Part I. Testing significance of influence of shaft material fatigue excitation parameters”, Polish Maritime Research, Vol.25, Special issue S1(97), pp. 211–217, DOI: 10.2478/pomr-2018-0044, 2018.
• 7. Z. Korczewski and K. Marszałkowski “Energy analysis of propulsion shaft fatigue process in rotating mechanical system. Part II. Identification studies – developing the fatigue durability model of a propulsion shaft”, Polish Maritime Research, Vol. 27, 2(106), pp. 120–124, DOI: 10.2478/pomr-2020-0033, 2020.
• 8. K. Marszałkowski, “Energy processes modelling in a rotating mechanical system for the purpose of diagnosing the fatigue of ship propulsion shafts” (in Polish), Ph.D. dissertation, Gdansk University of Technology, 2019.
• 9. E. Buckingham, “On Physically Similar Systems: illustrations of the use of dimensional equations”, Physical Review, 4, pp. 345–376, 1914.
• 10. E. Buckingham, “Physically similar systems”, Academy of Sciences, 93, pp. 347–353, 1914.
• 11. S. Drobot, About dimensional analysis (in Polish). 1954.
• 12. L. Müller, Application of dimensional analysis in model studies (in Polish). 1983.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).