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Advanced Modal Seminar -
Validation and Updating of FE Models for Structural Analysis
3 Day FE Model
Validation & Updating
Course:
Schedule:
November
11th-13th, 2008
Course Fee: $1,850 per Attendee
The course fee includes participation, course
notes, lunches and refreshments. A full refund will be made for all
cancellations received 30 days before the start of the course. No refunds will
be granted after the 30 day deadline. Substitute attendees will be accepted at any time. In the event
that we have to cancel the course, the course fee will be refunded in full, but we disclaim
any further liability.
Background Discussion:
During this FE Model Validation and Updating course, the participants
will not only learn the basic principles of test-analysis correlation and finite
element model updating, but also get hands-on experience using specialized
software (FEMtools). All aspects of a
FE model validation process will be reviewed including the import and
correlation of FEA and test models, the correlation of FEA/test data and
results, the selection of model updating parameters, the definition of realistic
targets, the computation of sensitivity coefficients, running of updating loops
and post processing of results. Complementary technologies and
applications such as probabilistic analysis, pretest planning, structural
modifications, force identification and material characterization will also be
discussed and applied.
Attendees are encouraged to bring a laptop
computer with them for use during the laboratory exercises. We will load a
fully functional copy of FEMtools on
the laptops which will operate for 30 days. The software can be used to
repeat the the laboratory exercises after the class or for the analysis of the
attendees' FEA/test data.
Seminar Schedule:
Day 1 : 8:30
am – 5:00 pm
Introduction
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Needs,
motivation and strategies for model validation
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Discussion of processes and data flow
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Managing model validation projects
Database Management & Finite Element Analysis
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Importing
standard FEA and test data (model, shapes, FRF)
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Using finite element analysis solvers (mass
analysis, static analysis, modes analysis, FRF synthesis, forced response
analysis) and piloting standard FEA software.
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Examining the analytical and experimental
database. Checking database integrity.
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Database operations: coordinate system
transformations, defining sets, mode shape normalization,…
Correlation
Analysis
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Mapping FE and test models (geometry
correlation)
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Expansion and truncation of mode shapes
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Global and local shape correlation
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Reduction of system matrices (Guyan, IRS,
Craig-Bampton)
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Mode shape orthogonality checking
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FRF correlation
Pretest Analysis
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Overview of pretest analysis procedures
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Selection of target modes
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Selection of sensor locations; manual and
automated procedures
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Creation of test models
Day 2 : 8:30
am – 5:00 pm
Sensitivity Analysis and Model Updating
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Model updating using static test data
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Modal-based model updating
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FRF-based model updating
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Parameter relations
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Multi-model updating
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Superelement-based model updating
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Model updating using DOE/RSM
Probabilistic Model Validation & Updating
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Overview and theoretical background
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Data preparation and post-processing
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Probabilistic model updating methods
Day 3 : 8:30
am – 5:00 pm
Applications of Model Updating
Structural Dynamics Modification
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Overview and theoretical backgrounds
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Definition of modification elements
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Parameter slider and range controls
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Applications of SDM in model updating
Force Identification and Updating
Script Development
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Database management
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Analysis
integration and process automation
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Mesh manipulation (refinement,
coarsening, element type conversion, transformation,…)
Review and Closure
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Seminar outline &
registration form:
FE Model Validation and Updating Seminar
To register On-line:
Registration
Send mail to
webinfo@navcon.com
questions or comments..
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Navcon Engineering Network
Last modified:
May 06, 2008
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