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.
Matlab codes
- Documentation (.pdf)
- Energy-balance method matlab code (.zip)
Experiments 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
- Prandina, M., Mottershead, J.E., and Bonisoli, E., Location and identification of damping parameters, IMAC XXVII Conference and Exposition on Structural Dynamics, Orlando, Florida, USA, 2009.
- 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, 181, 2009, 012006.
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