Application of modal analysis supported by 3D vision-based measurements

• Autorzy: Kohut P. , Kurowski P.

Warianty tytułu

PL

Trójwymiarowe wizyjne metody pomiarowe do wspomagania analizy modalnej

• Języki publikacji: EN

Abstrakty

EN

In the paper, applications of the 3D vision techniques to the modal analysis method are presented. The goal of the project was to develop a methodology for vibration amplitude measurements and a software tool for modal analysis based on visual data. For this purpose, dedicated procedures and algorithms based on the vision technique methods were developed. 3D measurements of vibrations and structure geometry were obtained by application and developing passive 3D vision techniques.The amplitude of vibrations was calculated for selected points on thestructure. Necessary vision data were received from the high-speed digital camera ”X-Stream Vision” in form of ”avi” files that were used as the input data for the developed software tool. The amplitude of vibration displacements obtained from vision-based measurements were treated as the input data for operational modal analysis algorithms. In this domain, the Balanced Realization algorithm has been used.

PL

W artykule zaprezentowano wykorzystanie trójwymiarowych technik wizyjnych w metodach analizy modalnej. Przedstawiono opracowaną metodykę pomiarów amplitudy drgań oraz narzędzie programowe do realizacji analizy modalnej bazującej na danych wizyjnych. Opracowano dedykowane procedury i algorytmy wykorzystujące metody wizyjne. Amplituda drgań została obliczona w wybranych punktach pomiarowych struktury. Trójwymiarowe pomiary drgań oraz geometrię struktury uzyskano poprzez zastosowanie i opracowanie trójwymiarowych pasywnych metod wizyjnych. Jako dane wejściowe do opracowanego narzędzia programowego użyto sygnały wizyjne otrzymane z „szybkiej” kamery cyfrowej X-StreamVision w postaci plików ’avi’. Uzyskana z systemu wizyjnego amplituda drgań stanowiła dane wejściowe do algorytmu operacyjnej analizy modalnej. W tej dziedzinie wykorzystany został algorytm zbilansowanej realizacji (ang. Balanced Realization).

Słowa kluczowe

EN

passive 3D vision techniques; structure from motion; vibration measurements; modal analysis

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2009
• Tom: Vol. 47 nr 4
• Strony: 855--870
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Kohut P.

autor

Kurowski P.

• AGH-University of Science and Technology, Deparetment of Robotics and Mechatronics, Cracow, Poland,

Bibliografia

• 1. Bouguet J.Y., Perona P., 1998, Closed-form camera calibration in dualspace geometry, California Institute of Technology, Pasadena, CA 91125, USA, 136-193
• 2. Chen F., Luo W.D., Dale M., Petniunas A., Harwood P., Brown G.M., 2003, High-speed ESPI and related techniques: overview and its application in the automotive industry, Optics and Lasers in Engineering, 40, 5/6, 459-485
• 3. Christy S., Horaud R., 1996, Euclidean shape and motion from multiple perspective views by affine iteration, IEEE Trans. Pattern Analysis and Machine Intelligence, 18, 11, 1098-1104
• 4. Freymann R., Honsberg W., Winter F., Steinbichler H., 1996, Holographic modal analysis, Laser in Research and Engineering, Springer Verlag Berlin, 530-542
• 5. Harris Ch., Stephens M., 1988, A combined corner and edge detector, Proc. of The Fourth Alvey Vision Conference, Manchester, 147-151
• 6. Heikkil¨a J., 2000, Geometric camera calibration using circular control points, IEEE Transactions on Pattern Analysis and Machine Intelligence, 22, 10, 1066-1077
• 7. Kanade T., Morris D., 1998, Factorization methods for structure from motion, Phil. Trans. R. Soc. Lond., A, 356, 1153-1173
• 8. Kohut P., Kurowski P., 2006, The integration of vision system and modal analysis for SHM application, A Conference and Exposition on Structural Dynamics, paper on CD. pp. 8, IMAC XXIV, St. Louis
• 9. Kohut P., Kurowski P., 2005, The integration of vision based measurement system and modal analysis for detection and localization of damage, 21st International Conference on CAD/CAM, Robotics and Factories of the Future CARS&FOF 2005, Krakow, 391-398
• 10. Kurowski P., 2001, Identification of Modal Models for Mechanical Constructions on the Basis of Exploitational Measurements, PhD Thesis, AGH, Krakow [in Polish]
• 11. Lucas B.D., Kanade T., 1981, An iterative image registration technique with an application to stereo vision, International Joint Conference on Artificial Intelligence, 674-679
• 12. Ma Y., Soatto S., Kostecka J., Sastry S., 2004, An Invitation to 3D Vision, Springer-Verlag, New York
• 13. Mitchell A.K., 2005, Optical modal analysis using white-light projected fringes, Experimental Mechanics, ISSN: 0014-4851, 45, 3
• 14. Moreno D., Barrientos B., P´erez-López C., Mendoza Santoyo F., 2005, Modal vibration analysis of a metal plate by using a laser vibrometer and the POD method, Journal of Optics a: Pure and Applied Optics, 7S356-S363
• 15. Peeters B., Peeters K., Van der Auweraer H., Olbrechts T., Demeester F., Wens L., 2004, Experimental modal analysis using camera displacement measurements: a feasibility study, Proc. SPIE the International Society for Optical Engineering, 5503, 298-309
• 16. Poelman C., Kanade T., 1997, A paraperspective factorizarion method for shape and motion recovery, IEEE Trans. Pattern Analysis and Machine Intelligence, 19, 3, 206-218
• 17. Schmidt T., Tyson J., Galanulis K., 2003, Full-field dynamic displacement and strain measurement using advanced 3D image correlation photogrammetry, Experimental Techniques, 27, 3, 41-44
• 18. Synnergren P., Sj¨odahl M., 1999, A stereoscopic digital speckle photography system for 3-D displacement field measurements, Optics and Lasers in Engineering, ISSN: 0143-8166, 31, 6, 425-443
• 19. Tomasi C., Kanade T., 1991, Detection and Tracking of Point Features, Carnegie Mellon University, Technical Report, CMU-CS-91-132, Pittsburgh, PA, USA,
• 20. Tomasi C., Kanade T., 1992, Shape and motion from image streams under orthography: a factorization method, International J. Computer Vision, 9, 2, 137-154
• 21. Trucco E., Verri A., 1998, Introductory Techniques for 3D Computer, Vision, Prentice-Hall
• 22. Van der Auweraer H., Steinbichler H., Haberstok C., Freymann R., Storer D., 2002, Integration of pulsed-laser ESPI with spatial domain modal analysis, Shock and Vibration, Publ. IOS Press, 9, 1-2, 29-42
• 23. Van der Auweraer H., Steinbichler H., Vanlanduit S., Haberstok C., Freymann R., Storer D., Linet V., 2002, Application of stroboscopic and pulsed-laser electronic speckle pattern interferometry (ESPI) to modal analysis problems, Measurement Science and Technology, 13, 4, 451-463
• 24. Vanlanduit S., Guillaume P., Schoukens J., 1998, Development of a data reduction procedure with noise extraction for high resolution optical measurements, Proc. of the SPIE, 3411, 357-365
• 25. Zisserman A., Hartley R., 2004, Multiple View Geometry in Computer Vision, New York, NY, USA: Cambridge University Press