Investigations of harbour brick structures by using operational modal analysis

• Autorzy: Żółtowski M.
• Języki publikacji: EN

Abstrakty

EN

Historic harbour brick objects are subject to large dynamic loads clearly reflected by generated vibration processes. The vibrations may affect state of serviceability of structures by lowering comfort of persons working there as well as possible reaching the level hazardous to safety of the structures. The effect of vibrations to structure is mainly manifested by additional stresses in a given cross-section, which are summed up with those resulting from static loads. Moreover often occur consequences associated with environmental conditions and fatigue of materials which accelerate destruction of the objects. Therefore the dynamic loads may cause damaging effects in buildings of various structural types or even lead to their catastrofic destruction. Judging the necessity of improving the quality assessment methods of building structures for purposes of estimation of their state as well as safety factors for brick structures (see PN-B- 03002 standard, p.3.1.3 and 4.6), the author of this work undertook an attempt to investigate destruction process of selected building structures by using the method of operational modal analysis.

Słowa kluczowe

EN

modal analysis; natural vibration frequency; stabilization diagram; structural vibrations

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2014
• Tom: nr 1
• Strony: 42--53
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Żółtowski M.

• University of Technology and Life Science in Bydgoszcz, Ks. Kordeckiego 20, 85-225 Bydgoszcz, POLAND

Bibliografia

• 1. Batel M.: Operational modal analysis – another way of doing modal testing. Sound and Vibration, August 2002.
• 2. Bishop R., Johnson D.: The mechanics of vibration. Cambridge University, Press, 1980.
• 3. Brandt S.: Data analysis (in Polish). Wydawnictwo Naukowe PWN (Scientific Publishing House), Warszawa 1999.
• 4. Brown D., Allemang R.: Multiple Input Experimental Modal Analysis. Fall Technical Meeting, Society of Experimental Stress Analysis, Salt Lake City, UT, November 1983.
• 5. Brunarski L.: Non-destructive methods for concrete testing (in Polish). Arkady, Warszawa 1996.
• 6. Formenti D., Richardson M.: Parameter estimation from frequency response measurements using rational fraction polynomials (twenty years of progress). Proceedings of International Modal Analysis Conference XX, Los Angeles, CA, February 4-7, 2002.
• 7. Ibrahim S., Mikulcik E.A.: Method for the direct identification of vibration parameters from the free response. Shock and Vibration Bulletin, Vol. 47, Part 4, 1977.
• 8. Peeters B., Ventura C.: Comparative study of modal analysis techniques for bridge dynamic characteristics. Submitted to Mechanical Systems and Signal Processing, 2001.
• 9. Pickrel C.R.: Airplane ground vibration testing – nominal modal model correlation. Sound and Vibration, November 2002.
• 10. Richardson M.: Is it a mode shape or an operating deflection shape? Sound and Vibration, February 1997.
• 11. Richardson M.: Structural dynamics measurements. Structural Dynamics @ 2000: Current status and future directions, Research Studies Press, Ltd. Baldock, Hertfordshire, England, December 2000
• 12. Shih C., Tsuei Y., Allemang, R., Brown D.: Complex mode indication function and its applications to spatial domain parameter estimation. Proceedings of International Modal Analysis Conference VII, January 1989.
• 13. Uhl T.: Computer-aided identification of mechanical structure models (in Polish). WNT (Scientific Technical Publishers), Warszawa 1997.
• 14. Williams R., Crowley J., Vold H.: The multivariate mode indicator function in modal analysis. Proceedings of International Modal Analysis Conference III, January 1985.
• 15. Vold H., Schwarz B., Richardson M.: Display operating deflection shapes from non-stationary data. Sound and Vibration, June 2000.
• 16. Vold H., Kundrat J., Rocklin G.A.: Multi-input modal estimation algorithm for mini-computers. S.A.E. paper No. 820194, 1982.
• 17. Żółtowski M.: Identification of vibration hazards to building objects (in Polish). Budownictwo Ogólne (General Building), ZN ATR, Bydgoszcz 2005
• 18. Żółtowski M.: Measurements of acoustic properties of materials (in Polish). Diagnostyka, PTDT, Polska Akademia Nauk (Polish Academy of Sciences), vol.33, 2005
• 19. Żółtowski M.: Selection of information on identification of the state of machine. UWM, Acta Academia 310, Olsztyn 2007.
• 20. Żółtowski M.: Computer-aided management of system’s operation in production enterprise. Integrated management (in Polish). Oficyna Wydawnicza Polskiego Towarzystwa Zarządzania Produkcją (Publishing House of Polish Society on Production Management), vol. 2, Opole 2011.
• 21. Żółtowski M.: Modal analysis in the testing of building materials (in Polish). ITE-PIB, Radom 2011.