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AutoFEM Analysis Damping of System |  |
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AutoFEM Analysis Damping of System | |
The Rayleigh damping is accepted in the system, i.e. damping matrix is proportional to the stiffness and mass matrices and is defined by the expression where a is the proportionality factor of the masses; b – proportionality factor of stiffness (both coefficients are scalars).
The parameters are set on the Damping tab . The parameters on the tab are similar to the parameters of forced oscillation analysis. The difference is that the proportionality factor of stiffness is not set for the Mode superposition study type.
See also: Dynamic Analysis, Direct Time Integration, Mode Superposition, Dynamic Analysis Steps, Time Settings, Integration Parameters, Assigning Initial Conditions, Damping of System, Thermal Effects, Analysing Results, Example of Dynamic Analysis