I wanted to let the flight sim community know of a new web site that
describes DAVE-ML, and to invite participants to help guide future
such developments. DAVE-ML is an attempt to encode flight dynamic
models using open standards, suitable for use on engineering
development and flight control design simulations, including real-time
piloted and desktop CAD analysis tools. DAVE-ML was motivated to
reduce the amount of time required to rehost simulation models from
one simulation facility to another without proprietary tools.
XML (eXtensible Markup Language) is a rapidly growing W3C-approved
standard for the storage and exchange of data, in a manner similar to
the way HTML is used to exchange formatted information. Use of XML to
store any type of data reaps benefits by being able to use computer
tools to create, edit, transform (including creating do***entation)
and validate the information.
DAVE-ML is a syntax based on XML. It takes advantage of existing XML
technologies, including MathML for equation representation, and XSLT
to transform the models into do***entation and other formats. DAVE-ML
also makes use of developing AIAA standards to include statistics
(such as 3-sigma bounds), use of standard variable names and axes
conventions, and references to data do***entation. A DAVE-ML file can
contain the complete description of the flight vehicle aerodynamic
model, including data tables, buildup equations, and do***entation, in
a facility- and programming-language independent open standard.
A group of professional simulation providers is currently testing the
DAVE-ML concept to exchange aerodynamic models between normally
incompatible simulation facilities. Other people are working on tools
to make it easier to convert existing simulation models into DAVE-ML
More information about this project, sample DAVE-ML aircraft
"databases" and instructions on how to subscribe to a related
simulation standards discussion group, are available at
<http://dcb.larc.nasa.gov/utils/fltsim/DAVE>
--Bruce Jackson
Bruce Jackson mailto:e.b.jackson@[EMAIL PROTECTED]
Dynamics and Control Branch
18C West Taylor Street MS 132 Airborne Systems Competency
NASA Langley Research Center Building 1192C, Room 149
Hampton, VA 23681-0001 scud://N 37 05'31.7" W 76 22'55.1"
http://dcb.larc.nasa.gov/DCBStaff/ebj/ebj.html
"There is no try"
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