Student Name: Ayisha Nayyar

Research Topic: A Baseline-free and Output-only Vibration Analysis Technique for Structural Damage Detection

Research Interests: Vibration based Structural Health Monitoring

Supervisor: Dr. Ummul Baneen

Current Progress: Completed – 2021

Description

The significance of the area, Structural Health Monitoring is increasing with every passing day. A lot of research has continued in this field since decades, but the urge to develop a deployable, autonomous and robust damage detection system still persists. During the Ph.D. research, a baseline-free, output-only, structural damage detection and localization technique is developed which successfully localize less severe multiple damage in presence of high percentage noise that is experimentally proven as well.  The developed method utilizes, cepstrum analysis and FRF-curvature method together and works efficiently irrespective of the boundary conditions, source of excitation and location of the damage. Moreover, it shows remarkable results under the presence of high percentage additive noise and also when the noise is convolved with the vibration signal. This work is a wave forward into the ocean of research, in the area of structural damage detection.

Publications

  • Nayyar, A., Baneen, U., Ahsan, M., Zilqurnain Naqvi, S. A., & Israr, A. (2022). Damage detection based on output-only measurements using cepstrum analysis and a baseline-free frequency response function curvature method. Science Progress, 105(1), 00368504211064487.
  • Nayyar, A., Baneen, U., Naqvi, S. A. Z., & Ahsan, M. (2021). Detection and localization of multiple small damages in beam. Advances in Mechanical Engineering, 13(1), 1687814020987329.
  • Waris, N., Baneen, U., & Nayyar, A. (2021). A Modified Reference-free Modal Strain Energy Method for Damage Identification in 2D Structures. Pakistan Journal of Engineering and Applied Sciences, 1(1).
  • Sindhu, V., Baneen, U., Naqvi, S. A. Z., & Nayyar, A. (2021). Damage localization in plate-type structure using 2D-Bayesian technique. Pakistan Journal of Engineering and Applied Sciences, 1(1).
  • Zafar, S., Baneen, U., & Nayyar, A. (2020). Damage detection in composite beam type structure by strain measurements. Pakistan Journal of Engineering and Applied Sciences, 27(2).
  • Iqbal, S., Naeem, M. A., & Nayyar, A. (2016, November). Status of MOOCs in Pakistan: Optimism and concerns. In 2016 European Modelling Symposium (EMS) (pp. 237-241). IEEE.