5. Creating the loss factor matrix
5.1 Dissipation loss factors (DLF)
5.1.1 Assigning DLFs to structures
The internal loss factorη of an oscillator is the ratio of the energy lost during a period to the total mechanical energy stored in kinetic and potential forms. It indicates the proportion of mechanical vibratory energy lost, i.e. converted to heat in a vibration cycle. It depends on the distribution of stresses exerted, and therefore on the nature of the excitation, the shape of the solid and the frequency....
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Creating the loss factor matrix
Power injected by external forces
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