- News
- Most recent...
- 2011-12-11:
MBDyn 1.4.1 is out.
Lots of new features and bug fixes (many are the result of users'
feedback, which is duly acknowledged).
- 2011-06-21:
MBDyn 1.4.0 is out.
It features the shell element,
user-contributed user-defined elements,
many minor improvements and bug fixes.
The main reason for the minor version number increase (3 to 4) is related
to the reworking of many internals that may break source compatibility.
- 2011-02-08:
MBDyn 1.3.18 is out;
minor bug fixes, plus missing mbc_py_interface.py file,
required for python interface to external forces.
Directly promoted to stable.
- 2011-01-29:
MBDyn 1.3.17 is out;
more improvements to external force handling
(e.g. C++ interface to external forces peer library)
and misc. bug fixes.
- 2011-01-01:
Happy new year.
- 2010-10-25:
a complete tutorial,
many examples,
and an animations gallery
has been developed by Sky Engineering Lab.
- 2010-09-04:
Animations using MBDyn (among other software).
- 2010-08-14:
MBDyn 1.3.16 is out;
directly promoted to stable.
- 2010-04-26:
MBDyn 1.3.15 is out;
extensive improvements to external force handling (builtin & peer-side),
KLU support, improved diagnostics, reworked user-defined element handling.
- 2010-04-08:
Jinwei Shen gave an introductory presentation about MBDyn
to an Army Research Laboratory (ARL) team at Aberdeen Proving Ground, Joppa, MD.
- 2010-03-16:
MBDyn 1.3.14 is out;
minor improvements.
- 2010-03-11:
Doug Baldwin announced the release
of Blender & MBDyn 0.4.0,
promoted from Alpha to Beta.
Read more.
- 2010-03-05:
MBDyn 1.3.13 is out;
misc improvements.
- 2010-02-14:
Aviation News
acknowledges the contribution of MBDyn
to the analysis of the Puffin personal air vehicle concept
[pdf]
(thanks to Jinwei Shen: read the paper Multibody Dynamics Model of a VTOL Teetering Rotor,
AHS Aeromechanics Specialists' Conference, January 20-22, 2010, San Francisco, CA).
- 2010-02-13:
MBDyn 1.3.12 is out;
minor bug fixes, plus wind profiles.
It is directly promoted to stable.
- 2010-01-12:
MBDyn 1.3.11 is out;
it is directly promoted to stable.
This release has been partially supported by PRIN 20078TJFZE.
- 2010-01-01: Happy new year.
- 2009-11-19:
MBDyn 1.3.10 is out.
MBDyn 1.3.9 promoted to stable.
- 2009-07-15:
MBDyn 1.3.9 is out
(MBDyn 1.3.8 intentionally not announced).
- 2009-06-08:
the mailing lists moved to a new ISP; the whole thing is shaking down,
so if you experience problems, please be patient. In case, feel free
to notify issues either through
the mbdyn-users@mbdyn.org
mailing list itself, or
to mbdyn@aero.polimi.it
if the former does not work.
- 2009-05-25:
this video
shows some examples of modeling and analysis
using Blender & MBDyn (thanks to Doug Baldwin).
- 2009-03-17:
MBDyn 1.3.7
is out.
Mainly bugfixes.
- 2009-01-20:
MBDyn 1.3.6
is out.
Mainly bugfixes in order to allow building on Mac
(thanks to people at
University of Maryland's
Aerospace Engineering Department)
and on Windows with MinGW/MSYS.
This release has been promoted to stable.
- 2009-01-08:
MBDyn 1.3.5
is out.
This is the first release version of the MBDyn 1.3 series.
It presents significant enhancements, including:
- direct eigenanalysis (using elements that contribute
to the Jacobian matrix), based on
LAPACK/ARPACK;
- dynamics in a relative frame (useful for rotating system
eigenanalysis);
- complete rework of real-time scheduling & I/O,
including POSIX-based scheduling as a soft alternative
to RTAI, and streamed
motion output;
- support for generic, tightly coupled external forces
(specialized to the interaction with
FOI's
EDGE);
- selected bug fixes.
Please test and report through the
mbdyn-users@mbdyn.org
mailing list.
- 2009-01-03: direct eigenanalysis, using lapack and arpack,
has been added to MBDyn.
This feature will appear in the next release.
- 2009-01-01: Happy new year.
- 2008-12-29: Relative reference frame dynamics added to MBDyn.
Currently, a whole model can be written in relative coordinates,
subjected to an arbitrary reference motion.
Future development could allow to intermix absolute and relative
reference frame submodels.
- 2008-12-21: Riccardo Gori (goriccardo AT gmail DOT com)
is implementing a train wheel module. More info
soon.
- 2008-10-30:
Doug Baldwin
announced
Blender & MBDyn,
a GUI for MBDyn based on
Blender.
The source code
is hosted by SourceForge.
Note: "Blender & MBDyn"
and
"BlendedMBDyn"
are unrelated.
We gratefully acknowledge the contribution of all Blender experts
in making MBDyn more and more usable.
- 2008-10-02:
BlendedMBDyn, the experimental pre/post processor
for MBDyn based on Blender,
moved to a
new site
(the link http://www.enlightenengineering.com/BlendedMBDyn/ no longer works;
old site).
- 2008-08-25:
MBDyn 1.3.4-Beta
is out.
This release of MBDyn 1.3 addresses a number of minor issues,
and provides selected enhancements, including support
for modal element data generated using
Code Aster.
- 2008-08-05:
a macro is available to extract Component Mode Synthesis (CMS)
data (the "modal" element FEM file data)
from Code Aster,
the free FEM solver developed by EDF.
More details here.
Feedback is welcome. Please either post on the
Code Aster forum
(for issues related, e.g., to Code Aster installation and use),
or on the MBDyn users
mailing list (for issues related to MBDyn use and to FEM data formatting).
Remember that subscription is required for both.
Many thanks to Code Aster developers for their support.
Note: the use of data generated with Aster might not be compatible
with MBDyn 1.3.3 and earlier, unless manually edited.
- 2008-07-30:
Pierangelo Masarati gave a
lecture
about multibody dynamics and MBDyn
at LaMSID
(EDF R&D
- French CNRS Joint Laboratory).
- 2008-07-22: MBDyn will be used for the research project
"Modeling of biomechanical man-machine interaction in vehicles",
PRIN 2007.
An aeroelastic model of a helicopter, with provisions
for man-machine biomechanical interaction, will be produced
and distributed.
- 2008-05-05: Pierangelo Masarati gave
an invited lecture
about real-time multibody dynamics and MBDyn
at the Department of Mechanical Engineering of the
Universidad Pública de Navarra.
- 2008-03-01:
vim
syntax highlights for MBDyn's input are available
in var/mbd.vim
(starting from the next release;
give it a try now).
- 2008-02-09: Fanzhong Meng, during a stage at
the Dipartimento di Ingegneria Aerospaziale
of Politecnico di Milano,
is working on a module implementing
NREL's
AeroDyn
wind-turbine aerodynamic loads for MBDyn.
- 2008-01-26:
MBDyn 1.3.3-Beta
is out.
This release of MBDyn 1.3
fixes a bug in aerodynamic coefficient table lookup and adds
some new features.
- 2008-01-03:
MBDyn 1.3.2-Beta
is out.
This release of MBDyn 1.3
is mainly intended to fix recent issues appeared
with the previous release, along with extended support for
NetCDF
output.
The input manual has been extended quite a bit.
- 2008-01-03: Happy new year
- 2007-12-20: The NASA Goddard Space Flight Center has
a page
about MBDyn.
- 2007-12-06: Valerio Boschi presented
a lecture
at JPL
on a work involving MDByn.
- 2007-11-28: a paper on multibody software accessibility is available
here.
- 2007-11-17:
Marco Morandini developed an
automatic differentiation patch
using CppAD,
within ANTASME, a MATEO Project.
- 2007-08-31:
MBDyn 1.3.1-Alpha
is finally out.
This is the first public release of MBDyn 1.3,
which is mainly intended to shake down remaining issues.
There's still lots to do to have it in shape;
among other things, output with
NetCDF
is far from complete.
- 2007-06-19: RT-MBDyn is used to simulate a wind turbine
in real-time, to support the development
of innovative solutions for Embedded Real Time Applications
within the SI PARTE! project.
Details here.
- 2007-05-21: MBDyn 1.2.7
is out.
This is the final 1.2 release; 1.3 will be out shortly.
- 2007-05-11: Apparently, the Flight Design and Dynamics Department
of the NASA Johnson Space Center at Houston
is procuring and distributing MBDyn within
the organization, as indicated
here
[cache]
- 2007-04-16: MBDyn sim suite is available
here.
- 2007-03-13: John Kollman is developing a graphical user interface
for MBDyn based
on Blender.
- 2007-02-26: Apparently, MBDyn will be part of the
Huri Batash
(high wind in Nepali) project for a free wind-turbine analysis software
(check the project's news).
Nice logo:
- 2007-01-05: a first cut to MBDyn
output
on a NetCDF
database has been committed to CVS (thanks to Patrick Rix).
Interested developers should contact via
mbdyn-users@mbdyn.org
(subscription required; instructions here).
- 2007-01-01: Happy new year
- 2006-12-16: MBDyn is being
evaluated
as a possible tool to model the Horizontal Access Module
Seismic Attenuation System (HAM-SAS) of the advanced version
of the Laser Interferometer Gravitational wave Observatory
(LIGO),
under development at CalTech.
- 2006-12-15: Patrick Rix is working on a project,
called MBDyn-Eclipse-project, to support MBDyn
development in Eclipse,
an open development platform.
- 2006-11-20: MBDyn is now listed in the
academics software page
of the IFToMM Technical Committee for Multibody Dynamics.
- 2006-11-10: Patrick Rix posted
to sourceforge a project,
called MBDyn_bulk_utils, for a simple data extraction
and plotting suite, to ease plotting MBDyn output with gnuplot.
The announcement is available
here.
- 2006-10-24: MBDyn output can be converted to use EasyAnim
as GUI for post-processing.
EasyAnim, initially developed by Olivier Verlinden
at Faculté Polytechnique de Mons, is now being
actively developed and maintained by MBDyn developers.
See this page
for further information.
- 2006-10-20: Portions of MBDyn website moved to a new location;
if you experience broken links, please mail to
mbdyn@aero.polimi.it
a brief description of the problem.
- 2006-08-05: this patch
fixes an issue with the Jacobian matrix of rod joints
when offsets are present.
- 2006-02-08: this patch
is required to compile 1.2.6 with --enable-schur.
- 2006-02-01: MBDyn 1.2.6
is out: few bug fixes, better docs (manual & tutorials),
reworked modal element.
- 2006-01-01: Happy new year
- 2005-12-28:
this document
erroneously states that MBDyn "...was jointly developed
by NASA Langley, Agusta and the Milano Polytech Institute".
This sentence appears in a section describing activities run
by CIRA, the Italian Aerospace Agency;
the "Milano Polytech(nic) Institute" is supposed to be
"Politecnico di Milano".
The developers of MBDyn
never received any direct or indirect support
(read: money and development effort) from the cited
institutions.
Otherwise MBDyn wouldn't likely be free software.
The Army Research Laboratory
(ARL) at NASA Langley
supported the development of MBDyn by means of a
CRDA
(read: no money, but lots of info and data) since 1998.
- 2005-11-29: MBDyn 1.2.5
is out: few bug fixes, slightly better docs, some interesting
new features.
See the changelog.
- 2005-05-23: it has been reported that the ARL project
about a converter from DADS to MBDyn has been closed.
It is very unlikely that any code developed so far
will ever be released.
- 2005-05-22: a FreeBSD
port
of MBDyn 1.2.4 is available,
thanks to Kay Lehmann
(kay_lehmann AT web DOT de).
- 2005-03-02: MBDyn 1.2.4 is out;
fixes the Cygwin build.
- 2005-02-26: a port of MBDyn
for FreeBSD is being developed at
Technische Universität Berlin.
- 2005-02-26: MBDyn 1.2.3 works just fine with
Umfpack v4.4
(used by permission).
- 2005-02-10: MBDyn 1.2.3 is out;
a bugfix/feature request release, with reworked socket handling
(for Simulink interface), deformable joints fix and cleanup.
Featuring the matrix-free nonlinear solvers family for special applications
(thanks to Giuseppe Quaranta).
- 2005-01-01: Happy new year!
- 2004-12-03:
The U.S. Army Research Laboratory Major Shared Resource Center
(ARL-MSRC)
is using MBDyn for distributed vehicle dynamics analysis; read the
story
(sometimes unreachable; grab a cached copy
from Google).
- 2004-11-24: MBDyn 1.2.2 is out;
mainly a bugfix release. See the changelog
for details.
- 2004-08-19: Chaco
domain partitioning eXperimental support is introduced for 1.2.1.
- 2004-08-16: MBDyn 1.2.1 is out,
which, among minor improvements, restores the parallel Schur solver
and introduces the Simulink interface for the integrated analysis
of multidisciplinary systems.
Moreover, a new installation manual is under development.
- 2004-07-21: MBDyn 1.2.0 is out,
with some significant improvements since 1.2 Beta 4
(see the changelog for details).
The manual is still lagging a bit behind, but improvements
occurred on that side as well.
- 2004-07-08: A presentation on RT-MBDyn was given at the
One-day meeting on: RTAI, present and future
.
- 2004-05-27: MBDyn 1.2 Beta 4 is out; few significant
improvements from HEAD; this will likely freeze into 1.2.0.
- 2004-05-24: MBDyn HEAD and 1.2-Beta successfully compiles
with gcc 3.4.0.
- 2004-05-18: Successfully compiled with Umfpack 4.3
and ATLAS 3.7.3; minimal performance improvements
in some cases (small problems), might need further
investigation.
Note to RT-MBDyn users: compile Umfpack 4.3 with
-DNO_TIMER to disable timing system calls.
- 2004-05-08: MBDyn mailing lists are activated;
see below for details.
- 2004-04-19: MBDyn 1.2 Beta 2 is out; mainly a bugfix
pre-release.
- 2004-03-11: Major update of the
RT-MBDyn home page
with movies of the COMAU SMART robot in simulated
real-time action.
- 2004-03-01: MBDyn 1.2 Beta 1
is released.
- 2004-02-27: A Beta of MBDyn 1.2 is about to be released;
it contains the new internal structure and solution layout,
many new features, RTAI support
and multithread assembly.
- 2004-01-13: Added support for SuperLU sparse parallel solution
package, to perform multithreaded factorization via POSIX threads.
- 2004-01-02: MBDyn now supports multithread Jacobian and residual
assembly via POSIX threads.
- 2004-01-01: Happy new year!
- 2003-12-23: the RT-MBDyn home page
has been published.
The RTAI extensions
for MBDyn will be distributed in the next release.
- 2003-12-05: the patch
for Umfpack 4.1 to disable syscalls when running
in real-time has been updated.
- 2003-11-25: MBDyn has been successfully coupled to
a free wake analysis software by means
of a general purpose communication and field
interpolation engine; extensions to CFD analysis
are being tested.
For details, contact the developers.
- 2003-11-09: A paper
on the user-space hard real-time simulation
under GNU/Linux RTAI
has been presented to the
Fifth Real-Time Linux Workshop,
November 9-11, 2003, Valencia, Spain.
- 2003-08-13: A snapshot
of current HEAD code for Windows 2000/XP is available;
needs cygwin libraries.
NOTICE: no support for Windows snapshots is available.
- 2003-07-01: A paper and a poster (available soon)
on multibody open source software were presented
at the Multibody Dynamics 2003
July 1-4 2003, Lisboa, Portugal.
- 2003-06-26: The site has been down for a while because
of (programmed?) black-outs on national scale.
- 2003-05-29: Support for RTAI,
GNU/Linux's Real Time Application Interface, has been added to MBDyn,
with hooks for hard user space real time scheduling,
input and output, to allow local/networked
hardware/software-in-the-loop simulations.
This enhancement will appear in the next major release; those interested
may contact the developers.
- 2003-05-29: Support for Umfpack 4.1 has been added.
This enhancement will appear in the next major release.
- 2003-03-08: Note to developers: the design of the code
(node/element API, time step simulation drivers and more)
is undergoing major changes. Those interested in the
internals should
contact the developers
to get detailed information/code snapshots of the new design.
- 2002-12-15: MBDyn will support the AeroDyn 12.3
subroutines from
Winward Engineering
for the simulation of wind turbine systems
(Note: they're currently coded in f90, so on GNU/Linux they require
a f90/C++ compiler; we're using Intel
icc/ifc
v 7.0; we had problems linking ifc objects with gcc 3.X).
- 2002-11-27: a patch
to avoid symbol clashing if f2c.h is available
has been prepared, based on a user report.
- 2002-11-27: if you can read this, it means you already know
we're back on the 'net, with a surprise:
1.1.4 :).
- 2002-11-26: MBDyn 1.1.4 is released,
since 1.2 is getting late ... (bug fix release:
better configurability and portability, various bugfixes,
support for Umfpack 4.0 sparse solver).
- 2002-11-26: due to a flood in our central network,
we're offline for a while; please be patient.
- 2002-11-01: an OpenDX
based postprocessor/visualization project is started;
contact us
if you want to know more ...
- 2002-07-26: download page is updated; patches to MPI 1.2.0
(not the latest, though) and Metis are provided
- 2002-07-26: MBDyn 1.1.3 is released
(bug fix release; this is the last release of 1.1,
unless major bugs are fixed before 1.2 is out).
- 2002-06-30: everything should be fine now; mbdyn.aero.polimi.it
is back.
- 2002-06-29: network problems: no download available
from mbdyn.aero.polimi.it; only the latest release
is available (see the
download page).
- 2002-05-21: we've been subjected to frequent black-outs,
recently; we apologize for any inconvenience.
- 2002-04-27: a file was missing from 1.1.2; please get 1.1.2-2.
- 2002-04-24: MBDyn 1.1.2 is released
(parallel build improvement, bug fixes).
- Download a movie
of the WRATS tiltrotor entering whirl flutter (1.7 Mb).
- 2002-03-21: MBDyn 1.1.1 is released
(bug fix release; fixes parallel build).
- 2002-01-16: MBDyn 1.1.0 is released
(fixes a flaw in solver workspace handling,
resulting in far better performances).
- 2001-11-14: MBDyn 1.0.1 is released
(bug fix release).
- 2001-11-05: MBDyn 1.0.0 is released
(first release).
Maintained by mbdyn@aero.polimi.it
Last modified on $Date: 2012/01/02 20:06:19 $.
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