Buradasınız

Anasayfa » Content

DOĞAL FREKANS VERİLERİ KULLANILARAK ANKASTRE BİR KİRİŞTE HASARLARIN BELİRLENMESİ

DETECTION OF DEFECTS IN A CANTILEVER BEAM USING MODAL TEST DATA

Journal Name:

  • Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi

Publication Year:

  • 2004

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
The aim of this study is to obtain information about the damage location and depth on the cracked beams. For this purpose, the vibrations due to impact shock are analyzed. The signal obtained from the defective and non-defective beams are compared both in time and frequency domain. By using these results, the location and depth of a defect can be determined from vibration signals.
Bookmark/Search this post with
Abstract (Original Language): 
Bu çalışmanın amacı çatlaklı kirişlerde hasar yeri ve derinliği hakkında bilgi edinmektir. Bu amaçla kirişte darbe vuruşu sonucu oluşan titreşimler incelenmiştir. Hasarlı ve hasarsız kirişlerden elde edilen sinyal hem zaman hem de frekans ortamında karşılaştırılmıştır. Bu sonuçlar kullanılarak bir hasarın yeri ve derinliği titreşim sinyallerinden belirlenebilir.
FULL TEXT (PDF): 
PDF icon arastirmax-dogal-frekans-verileri-kullanilarak-ankastre-bir-kiriste-hasarlarin-belirlenmesi.pdf
  • 3
327
331
  • Turkish

REFERENCES

References: 

Chati, M., Rand R and Mukherjee, S. 1997. Modal Analysis of a Cracked Beam, Journal of Sound and Vibration, 207 (2), 249-270.
Chondros, T. G., Dimarogonas A. D. and Yao J., 1998. A continuous Cracked Beam Vibration Theory, Journal of Sound and Vibration, 215, 17-34.
Chondros, T. G., Dimarogonas, A. D. 1998. Vibration of a Cracked Cantilever Beam, Journal of Vibration and Acoustics, Vol. 120, pp. 742-746.
Chondros, T. G., Dimarogonas, A. D., Yao, T. 2001. Vibration of a Beam With a Breathing Crack, Journal of Sound and Vibration, 239 (1), 57-67.
Kam, T.
Y
. and Lee, T. Y. 1992. Detection of Cracks in Structures Using Modal Test Data, Engineering Fracture Mechanics, Vol. 42, No. 2, pp. 381-387.
Kumar, A., Jayakumar, T., Subramanian, C. V., Thavasimuthu, M. 1999. Testing of Concrete
Structures for Determination of Strength and Detection of Flaws Using Low Frequency Ultrasonic and Impact Echo Techniques, J. Non-Dest. Eval., 19 (2), pp: 43-46.
Kumar, A., Thavasimuthu, P., Kalyanasundaram, P., Raj, B. 2000. "Structural Integrity Assesment of Ring Beam of a Pressurized Heavy Water", Nuclear Reactorusing Impact Echo Technique, Proceedings of 15th World Conference on NDT, Roma.
Matveev, V. V. and Bovsunovsky, A. P. 2002. Vibration-Based Diagnostics of Fatigue Damage of Beam-Like Structures, Journal of Sound and
Vibration, 249 (1), 23-40.
Ratcliffe, C. P. 1997. Damage Detection Using a Modified Laplacian Operator on Mode Shape Data, Journal of Sound and Vibration, 204 (3), 505-517.
Rizos, P., Aspragathos F. and Dimarogonas A. D. 1990. Identification of Crack Location and Magnitude in a Cantilever Beam From the Vibration Modes, Journal of Sound and Vibration, 138 (3),
381-388.
Sansalone, M., Nicholas J. C., Nelson N. H. 1987. A Finite Element Study of Transient Wave Propagation in Plates, National Bureau Standarts Gaithersburg. 92, 267- 287.
Sansalone, M. 1997. Impact Echo: The Complete Story, ACI Struct J., 94 (6), pp: 777-786.
Sansalone, M. and Carino, N. J. 1986. Impact-echo: A method for flaw detection in concrete using transient stress waves 222 p. NBSIR 86-3452, National Bureau of Standards.
Shen M. H. and Chu, Y. C. 1992. Vibrations of Beams With a Fatigue Crack, Computers & Structures, 45, 79-93.
Springer, W.T., K.L. Lawrence and T. J. Lawley, Damage Assesment Based on the Structural Frequency-Response Function, Experimental Mechanics, 28, 34-37.
Steinbach, J. and Vey, E. 1975. Caisson Evaluation by Stress Wave Propagation Method, Journal of the Geotechnical Engineering Division, ASCE, Vol. 101, GT4, pp. 361-378.

Thank you for copying data from http://www.arastirmax.com