Exciter set information

In the Simulation Navigator, use the Information right-click command:

• On the Configurations [#] node (1) to display the exciter selection settings for all the configurations.

• On an exciter selection configuration node (2) to display the details for an exciter set. The following example shows details for an exciter set.

Pre-Test 1
Solution 1 Results
Sensor Selection
Exciter Selection
Sensor DOF [10]
Candidate DOF [885]
Configurations [2]
NMIF 1
DPR 1

The information window lists the exciter set information in the EXCITER SELECTION CONFIGURATION INFORMATION and the EXCITER SET DETAILS INFORMATION sections.

The EXCITER SELECTION CONFIGURATION INFORMATION section lists the settings that you entered in the Edit Exciter Selection Configuration dialog box when you selected the normal mode indicator function (NMIF) algorithm.

------------------------------------------------------------ EXCITER SELECTION CONFIGURATION INFORMATION ------------------------------------------------------------ Configuration name         : NMIF 1Method                     : NMIFDamping Ratio              : 2.000000NMIF Threshold             : 0.600000Off Axis Angle             : 45 deg

Damping Ratio

The specified damping percentage ratio that is associated with the normal modes and that is used by the exciter selection algorithm.

NMIF Threshold

The specified threshold for the NMIF that is used by the exciter selection algorithm to find the optimum number of exciters and the optimum location for these exciters.

Off Axis Angle

The allowed orientation for the exciters.

The EXCITER SELECTION CONFIGURATION INFORMATION section lists the method name when you selected the driving point residue (DPR) algorithm.

------------------------------------------------------------ EXCITER SELECTION CONFIGURATION INFORMATION ------------------------------------------------------------ Configuration name         : DPR 1Method                     : DPR

The EXCITER SET DETAILS INFORMATION section lists the number of excited modes in the configuration, information about each exciter, and the individual modes that are excited by each exciter if you selected the NMIF algorithm.

------------------------------------------------------------ EXCITER SET DETAILS INFORMATION ------------------------------------------------------------ Number of exciters         : 2 (2 listed)Exciter No. Node         eX      eY      eZ     Number of Modes Excited     Max NMIF    Weighted Avg. NMIF 1           38           0.500   0.500   0.707  19                          0.575       0.340       2           289          0.000   0.000   1.000  5                           0.571       0.420       Excited modes for exciter  : 1    : 7,8,9,10,12,13,14,15,16,17,19,21,22,24,25,26,28,29,30Excited modes for exciter  : 2    : 11,18,20,23,27

Exciter No.

The identifier for the exciter.

Node

The node number where the exciter is located.

eX, eY, and eZ

The direction cosines for the X, Y, and Z direction, respectively. These direction cosines define the orientation of the exciter.

Number of Modes Excited

The number of analysis normal modes that are excited by the exciter. The numbers listed for Excited modes for exciter : # are the identifiers for each analysis mode that is excited.

Max NMIF

The maximum value of the normal mode indicator function of the exciter that is determined by the exciter selection algorithm. See Normal Mode Indicator Function (NMIF) algorithm for the maximum NMIF equation.

Weighted Avg. NMIF

The weighted average value of the normal mode indicator function of the exciter that is determined by the exciter selection algorithm. See Normal Mode Indicator Function (NMIF) algorithm for the weighted average NMIF equation.

The EXCITER SET DETAILS INFORMATION section lists the number of exciters in the configuration, information about each exciter, and the sorting criterion for each exciter if you selected the DPR algorithm.

------------------------------------------------------------ EXCITER SET DETAILS INFORMATION ------------------------------------------------------------ Number of exciters         : 2 (2 listed)Exciter No. Node         eX      eY      eZ     Minimum     Average     Weighted Avg.     Maximum1           5001270     1.000   0.000   0.000   4.649E+00   1.309E+04   1.309E+04         1.309E+04   2           5003601     0.000   1.000   0.000   2.462E+01   1.427E+05   1.427E+05         8.793E+05

Exciter No.

The identifier for the exciter.

Node

The node number where the exciter is located.

eX, eY, and eZ

The direction cosines for the X, Y, and Z direction, respectively. These direction cosines define the orientation of the exciter.

Minimum

The minimum DPR for all selected modes.

Average

The average DPR for all selected modes.

Weighted Avg.

The weighted average DPR for all selected modes.

Maximum

The maximum DPR for all selected modes.

How do I

Create an exciter selection configuration

Select an exciter

Solve exciter selection configurations

Display exciter set information

Learn more

Exciter selection configuration

Look up more details

Normal Mode Indicator Function (NMIF) algorithm

Driving Point Residue algorithm

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

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Exciter set information, Simcenter 3D 2021.1 Series

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