PLM Connection: NX FE Model Correlation

NX FE Model Correlation

Outline
Introducing NX FE Model Correlation
Current capabilities (Released NX 6.0.4)
What’s coming in NX 7.5
Demo

NX Advanced Simulation lets you simulate the dynamic behavior of structures
Experimental verification can provide confidence in the numerical results
A new tool is needed to assess the level of agreement between test data and FE results in the NX environment The ANSWER  NX FE Model Correlation
The Need

General Product Info
NX FE Model Correlation is:
For analysts and test engineers
A solution to compare FE modal results with experimental data, and with other FE solutions
Add-on to Advanced Simulation or Advanced FEM
A Siemens PLM product, developed by MAYA HTT Ltd

Correlation Capabilities
Correlation is an NX metasolution that lives in the work solution sim
Typical scenario is:
Work solution: Analysis
Reference solution: Test
Can also handle Analysis-Analysis correlation
Can create and manage multiple correlations in same sim

Test Solution Import
Import geometry, shapes, and FRFs from UNV files Test solution holding experimental results
Active sensor DOF detection
Units conversion
Support of legacy and actual UNV datasets
Support of multiple displacement coordinate systems (Cartesian, cylindrical, spherical)
Complex mode shape conversion

Test Results Post-Processing
Mode Shapes
Management in Post-Processing Navigator
Animation
Annotation
Multiple views
FRFs
Management in XY Function Navigator
Plot configurability
Annotation
Overlay plots

Test Model Alignment
Graphically align the test model to the FE model
Translation, scaling, rotation
Test mode shapes are transformed
Select the nodes that need to match
Preview capability
UNDO support

Test Sensor Management
View sensor locations and directions
Overlay on analysis model
Overlay on test model
Manipulate sensor DOFs
De-activate test DOFs
Adjust sign of test DOFs

Correlation Metrics
Supported metrics
MAC
CoMAC
Multiple output formats
2D plot
Information window
Excel spreadsheet
CSV file

Mode Pairing
Supported pairing methods
Automatic by MAC w/ threshold
Automatic by frequency
Automatic by mode number
Visualize with Mode Pairing Viewer
Pairs table with MAC and frequency error
Select mode pairs to include in CoMAC computation

Side-by-Side Mode Shapes
Display or animate paired modes side-by-side

AVI

Questions?
October 2009