Laminate Dynamics Details View subpanel (Simulation Navigator)

When you select the Normal Modes [#] node in the Simulation Navigator, the Laminate Dynamics Details View subpanel displays the frequency, the viscous damping factor, and the damped frequency for each normal mode. The number in the square brackets indicates the number of active normal modes.

Mode	Frequency(Hz)	%Viscous	Damped Frequency(Hz)
1	1.005e+002	2.000000	1.005e+002
2	1.009e+002	2.000000	1.009e+002
3	1.119e+002	2.000000	1.119e+002
4	1.314e+002	2.000000	1.314e+002
5	1.576e+002	2.000000	1.576e+002
6	1.614e+002	2.000000	1.614e+002
7	1.642e+002	2.000000	1.642e+002

Column name	Description
Mode	Indicates the mode identifier.Clear the check box to exclude a mode from base-driven random or sine events.
Frequency(Hz)	Indicates the undamped natural frequency of the selected mode.
%Viscous	Indicates the value for the viscous damping factor of the selected mode.
Damped Frequency(Hz)	Indicates the damped frequency of the selected mode.where:ωd is the damped modal frequency.ωn is the undamped modal frequency.ζ is the viscous damping factor.					where:ωd is the damped modal frequency.ωn is the undamped modal frequency.ζ is the viscous damping factor.
				where:ωd is the damped modal frequency.ωn is the undamped modal frequency.ζ is the viscous damping factor.

The following commands appear when you right-click one or more modes in the Laminate Dynamics Details View subpanel.

Icon	Command name	Description
	Activate	Includes the selected modes in base-driven random or sine events.
	Deactivate	Excludes the selected modes from base-driven random or sine events.
	Edit Damping Factors	Lets you edit the value for the viscous damping factor of the selected normal mode.

How do I

Laminate Dynamics workflow

Create a dynamic simulation

Filter modes with small modal effective mass

Modify normal mode settings

Create a random event

Create a sine event

Solve the dynamic simulation

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Damping definition

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Laminate Dynamics Details View subpanel (Simulation Navigator), Simcenter 3D 2021.1 Series

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