Explore load spreading using FEMAP. With external data, such as a pressure map, we will show how this data can be imported into FEMAP and applied to your model as a pressure load. Pressure plots can be made to compare to the external data. Load summation will also be performed to show how well the loads match the provided data.
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Agenda
• Introduction
• Data Surface / Data Surface Editor
• Capabilities
• Demonstrations
– Simple Plate – Map Output Data Surface
– New 11.3 / 11.3.1 Feature – Bypass the Data Surface
– Basic Wing Arbitrary 3D Data Surface
• Conclusions / Questions
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Data Surface Editor
• Data Surface Editor used to create “Data Surfaces” in FEMAP
• “Data Surfaces” are used to apply variable loading conditions using several
predefined methods
• Helpful / useful info can be found @:
– "C:FEMAPv1131pdfcommands.pdf“
• 7.2.6 Tools, Data Surface Editor
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Data Surface Variations
• Along Coord: Choose coordinates in space & apply value
• Between Coord: Enter # corners & variation type, apply
value
• Output Map: Map output from one mesh to another
• Mesh: Select node / element ID & value or “expression”
• Tabular: Define Table size & enter values
• Arbitrary 3D: Use points in scale and distribute using
“Inverse Weighted Interpolation”
• Equation: Enter a FEMAP equation and store for any
loading condition
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About SDA (aka “Structures.Aero”)
• SDA was founded in 1997 and provides expert aerospace
structural analysis
• We serve a variety of industries
• We specialize in composites, and developing strong,
lightweight structures that are readily manufacturable
• Low level support up through developing test plans
and advanced stress analysis
• Typical support programs include small to large UAVs,
manned and unmanned spacecraft, naval structures
• Our team consists of over a dozen B.S., M.S., and PhD
level engineers
• SDA is located in Sterling, VA, just north of Dulles Airport
near Washington DC
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Typical Projects we support
• Some of our previous projects include:
– Aircraft
• Aurora Excalibur
• MHADD ARES
• Vanilla VA1
• Lockheed Constellation restoration for Lufthansa
– Spacecraft
• NASA NESC Composite Crew Module (CCM)
• NASA NESC Max Launch Abort System (MLAS)
• NASA James Webb Space Telescope/IEC
• NASA Orion Heatshield mass reduction for NESC
• NASA Orion Crew Module (with Lockheed)
• NASA WFIRST Telescope for Goddard
Aerosonde
Heatshield
Shadow M2
CCM
Orion Crew Module
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Additional Resource
What New book published Fall 2014
Why Learning with the help documentation
can be like drinking from a fire hose.
Learning Femap succinctly covers the
bases on using Femap without being a
“bible”.
Covers Introduction
Femap Application Interface
Modeling/ Pre-Processing
Analysis
Post-Processing
Programming Femap
How Explanation of features
Numerous illustrations
Annotated examples
Guided tutorials
Learning Femap
ISBN 978-1-4951-2963-6
By Eric Gustafson (eric@structures.aero),
Senior Aerospace Stress Analyst, SDA
Available online at www.learningfea.com
$49.99
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Contact Us:
Contact:
Marty Sivic
Email:
msivic@structures.aero
Website:
http://structures.aero/
Phone: (724) 382-5290
Try FEMAP For Free!
Download a free 45-day trial of FEMAP with NX Nastran
• Full FEMAP capabilities
• All Nastran solution sequences included
• (http://structures.aero/femap-trial/)
Questions?
Contact:
Alex Skavdahl
Email:
askavdahl@structures.aero
Phone: (703) 935-2824
