Browsing Research publications by Author "Maia, N. M. M."

Now showing items 1-5 of 5

    • Damping measurements on a carbon fibre reinforced laminate 

      Montalvao, D.; Ribeiro, A. M. R.; Maia, N. M. M.; Duarte Silva, J.; Claudio, R. A. (KATHOLIEKE UNIV LEUVEN, DEPT WERKTUIGKUNDE, 2006)
      By performing force-displacement tests in a universal testing machine it is possible to accurately measure the damping of a material. By providing accurate estimates of the damping for a set of given conditions, it should ...

    • Estimation of the rotational terms of the dynamic response matrix 

      Montalvao, D; Ribeiro, A. M. R.; Maia, N. M. M.; Silva, J. M. M. (2004)
      The dynamic response of a structure can be described by both its translational and rotational receptances. The latter ones are frequently not considered because of the difficulties in applying a pure moment excitation or ...

    • On the estimation of rotational frequency response functions 

      Montalvao, D.; Ribeiro, A. M. R.; Maia, N. M. M.; Silva, J. M. M. (KATHOLIEKE UNIV LEUVEN, DEPT WERKTUIGKUNDE, 2005)
      Rotational receptances can perform an important role when predicting the dynamic behaviour both in theoretical and experimental models, especially when a modification includes a rotational inertia or a rotational stiffness. ...

    • A review of vibration-based structural health monitoring with special emphasis on composite materials 

      Montalvao, Diogo; Maia, N. M. M.; Ribeiro, A. M. R. (2006-07-01)
      Structural health monitoring and damage detection techniques are tools of great importance in the off-shore, civil, mechanical and aeronautical engineering communities, both for safety reasons and because of the economic ...

    • Using the Detection and Relative Damage Quantification Indicator (DRQ) with transmissibility 

      Maia, N. M. M.; Ribeiro, A. M. R.; Fontul, M.; Montalvao, Diogo; Sampaio, R. P. C. (TRANS TECH PUBLICATIONS LTD, 2007-01-01)
      The Detection and Relative Damage Quantification Indicator (DRQ) was presented previously as a reliable damage detection indicator when used with Operational Deflection Shapes (ODS). The DRQ was computed from the Response ...