StructuralDampingAssignment Properties

Damping assignment for a structural analysis model

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

RegionType — Region type

'Face' | 'Cell'

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

Data Types: char | string

RegionID — Region ID

positive integer

Region ID, returned as a positive integer. The toolbox defines damping parameters for the entire geometry.

Data Types: double

DampingModel — Damping model type

'proportional' | 'modal'

Damping model type, returned as 'proportional' or 'modal'.

Data Types: double

Alpha — Mass proportional damping parameter

nonnegative number

Mass proportional damping parameter, returned as a nonnegative number.

Data Types: double

Beta — Stiffness proportional damping parameter

nonnegative number

Stiffness proportional damping parameter, returned as a nonnegative number.

Data Types: double

Zeta — Modal damping ratio

nonnegative number | function handle

Modal damping ratio, returned 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