ECERTA Project

 

Title :

 

Investigators :

 

 

 

Sponsor :

 

 

Enabling Certification by Analysis

 

Marques, S., Timme, S., and Badcock, K.J.

 

Khodaparast, H.H., Prandina, M., and Mottershead, J.E.

 

European Commission 6th Framework Programme

 

Cantilever Beam Damping Identification

Introduction

Experiment setup

 

Experiment setup for cantilever beam damping identification

The test case is based on the experiments performed to validate the energy method proposed in [1] and [2]. A simple Matlab code is provided with the necessary documentation in order to apply the method to the three cases proposed. The code uses the measured accelerations and forces to identify an energy equivalent viscous damping matrix.

Available Resources for Download

Matlab Script

Documentation

Energy-Balance Method Matlab Script


Experimental Data

Undamped Cantilever Beam

(Case 1)

Cantilever Beam with Air Dashpot at DOF 8

(Case 2)

Cantilever Beam with Coulomb Friction at DOF 6

(Case 3)


References

Refereed Journals

  • Prandina, M., Mottershead, J.E., and Bonisoli, E., "Damping Identification in Multiple Degree-of-Freedom Systems using an Energy Balance Approach," Journal of Physics: Conference Series, Vol. 181, No. 1, 2009.
    doi: 10.1088/1742-6596/181/1/012006

Conference Papers

  • Prandina, M., Mottershead, J.E., and Bonisoli, E., "Location and Identification of Damping Parameters," IMAC XXVII Conference and Exposition on Structural Dynamics, Orlando, Florida, 9-11 Feb. 2009.
    IMAC Paper