Defining a new damper

A damper can be defined in a support, on a beam membe, on a slab.

Procedure to define a new damper

1. Open service Dynamics.

2. Start function Dampers.

3. If no damping has been defined so far, the Damping groups manager is opened on the screen. Define at least one damping group.

4. The Dampers branch is opened in the tree menu bar.

5. Select and start the function corresponding to the required type of damper:

   1. 1D damping,

   2. 2D damping,

   3. Node damping.

6. Fill in the parameters.

7. Select the appropriate 1D member/slab/support where the damper is to be installed.

8. End the function.

1D damping

Name	Specifies the name of the damper.
Type	Select the type of the damping parameter. Logarithmic decrement Relative damping Rayleigh damping
Value Alpha / Beta	Specifies the value of the parameter selected in the item above. Note: The Rayleigh damping requires the definition of two parameters. The remaining two types need just one value.

2D damping

Name	Specifies the name of the damper.
Type	Select the type of the damping parameter. Logarithmic decrement Relative damping Rayleigh damping
Value Alpha / Beta	Specifies the value of the parameter selected in the item above. Note: The Rayleigh damping requires the definition of two parameters. The remaining two types need just one value.

Node damping

Name	Specifies the name of the damper.
Damping X Damping Y Damping Z	Defines the damping in individual directions of the global coordinate system.