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
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GSSEA-Light: Gothenburg Sound AB, Sweden
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- Acoustics – Sound insulation measurement of buildings and building components/Laboratory measurement of airborne sound attenuation by building components. - ISO 140-3 - 1995
- Acoustics – Acoustic insulation measurement of buildings and building components/In situ measurement of airborne sound insulation between rooms. - ISO 140-4 - 1998
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