Application of Smartphone and Model Updating Technique in Structural Health Monitoring
- 36 Downloads
The present study outlines the application of smartphone and model updating in structural health monitoring by using vibration response data. The application of the approach has been shown for simply supported beams with uncracked and different crack configurations. Crack has been artificially generated at the time of casting using thin steel plate of 1.5 mm thickness. Finite element analyses have been carried out for uncracked and cracked beams. Laboratory tests were conducted using smartphone to obtain the natural frequencies of both damaged and undamaged beams with the help of accelerometer application software. Acceleration in the vertical direction of the cracked and uncracked beams was measured using this mobile application and thereafter, frequency response function curves have been obtained from this. At last, the model has been updated using bees algorithm to get more accurate results.
KeywordsModel updating Structural health monitoring Bees algorithm Noise contamination and smartphone
Unable to display preview. Download preview PDF.
- 1.Rytter, A.: Vibrational Based Inspection of Civil Engineering Structures. Ph.D. thesis, Department of Building Technology and Structural Engineering, Aalborg University, Aalborg. Fracture Dynamics, No. R9314 (1993).Google Scholar
- 2.Doebling, S.W.; Farrar, C.R.; Prime, M.B.; Shevitz, D.W.: Damage Identification and Health Monitoring of Structural and Mechanical Systems from Changes in their Vibration Characteristics: A Literature Review. Los Alamos National Laboratory, Los Alamos, NM (1996)Google Scholar
- 8.Xiaoqing, Z.; Qiang, H.; Feng, L.: Analytical approach for detection of multiple cracks in a beam. J. Eng. Mech. 136(3), 345–357 (2010). https://doi.org/10.1061/(ASCE)0733-9399(2010)136:3(345) CrossRefGoogle Scholar
- 13.Lee, E.T.; Eun, H.C.: Structural damage detection by power spectral density estimation using output-only measurement. Shock Vib. 2016, 1–13, Article ID 8761249 (2016). https://doi.org/10.1155/2016/8761249
- 15.Dey, P.; Talukdar, S.; Bordoloi, D.J.: Crack identification in thin walled channel section beam using combined three level factorial design response surface and genetic algorithm. In: Paper ID 173, 8th International Conference on Advances in Steel Structures, July 21–24, 2015, Lisbon, Portugal.Google Scholar
- 22.Tada, H.; Paris, P.C.; Irwin, G.R.: The Stress Analysis of Cracks Handbook, 3rd edn. ASME, New York (1985)Google Scholar