Midas civil1/28/2024 ![]() ![]() Modal Participation Factor: The ratio of the influence of a specific mode to the total modes.Įnter the control data for the eigenvalue analysis. Natural Period: A natural period is the time that it takes to freely vibrate the structure into the corresponding natural mode one full cycle.ģ. ![]() 1st mode, 2nd mode and nth mode represent the order in which least energy is required to deform the structure.Ģ. Natural mode: A natural mode pertains to free vibration in an undamped system. The dynamic properties include natural modes (or mode shapes), natural periods (or frequencies) and modal participation factors.ġ. Eigenvalue Analysis Control Eigenvalue Analysis ControlĮigenvalue analysis provides dynamic properties of a structure by solving the characteristic equation composed of mass matrix and stiffness matrix. ![]()
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