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StructuralDampingAssignment Properties

(To be removed) Damping assignment for a structural analysis model

StructuralDampingAssignment will be removed. To find Rayleigh damping parameters of the model, use the DampingAlpha and DampingBeta properties of femodel instead. (since R2023a) For more information on updating your code, see Version History.

A StructuralDampingAssignment object contains the damping model and its parameters for a structural analysis model. A StructuralModel container has a vector of StructuralDampingAssignment objects in its DampingModels.StructuralDampingAssignments property.

To set damping parameters for your structural model, use the structuralDamping function.

Properties

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Region type, specified as 'Face' for a 2-D region, or 'Cell' for a 3-D region.

Data Types: char

Region ID, specified as a positive integer.

Data Types: double

Damping model type, specified as "proportional", "modal", or "hysteretic".

Data Types: string

Mass proportional damping parameter, specified as a nonnegative number.

Data Types: double

Stiffness proportional damping parameter, specified as a nonnegative number.

Data Types: double

Modal damping ratio, specified as a nonnegative number or a function handle. Use a function handle when each mode has its own damping ratio. The function must accept a vector of natural frequencies as an input argument and return a vector of corresponding damping ratios. It must cover the full frequency range for all modes used for modal solution.

Data Types: double | function_handle

Version History

Introduced in R2018a

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