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OpenVSP (also Open Vehicle Sketch Pad) — is an open-source parametric aircraft geometry tool originally developed by NASA. It can be used to create 3D models of aircraft and to support engineering analysis of those models.




History


Predecessors to OpenVSP including VSP and Rapid Aircraft Modeler (RAM) were developed by J.R. Gloudemans and others for NASA beginning in the early 1990s. OpenVSP v2.0 was released as open source under the NOSA license in January 2012. Development has been led by Rob McDonald since around 2012 and has been supported by NASA and AFRL among other contributions.
OpenVSP allows the user to quickly generate computer models from ideas, which can then be analyzed. As such, it is especially powerful in generating and evaluating unconventional design concepts.




Features






= User interface

=
OpenVSP displays a graphical user interface upon launch, built with FLTK. A workspace window and a "Geometry Browser" window open. The workspace is where the model is displayed while the Geometry Browser lists individual components in the workspace, such as fuselage and wings. These components can be selected, added or deleted, somewhat like a feature tree in CAD software such as Solidworks. When a component is selected in the Geometry Browser window, a component geometry window opens. This window is used to modify the component.
OpenVSP also provides API capabilities which may be accessed using Matlab, Python or AngelScript.




= Geometry modelling

=
OpenVSP offers a multitude of basic geometries, common to aircraft modelling, which users modify and assemble to create models. Wing, pod, fuselage, and propeller are a few available geometries. Advanced components like body of revolution, duct, conformal geometry and such are also available.




= Analysis tools

=
Besides the geometry modeler, OpenVSP contains multiple tools that help with aerodynamic or structural analysis of models. The tools available are:

CompGeom - mesh generation tool that can handle model intersection and trimming

Mass Properties Analysis - to compute properties like centre of gravity and moment of inertia
Projected Area Analysis - to compute project area
CFD Mesh - to generate meshes that may be used in Computational fluid dynamics analysis software
FEA Mesh - to generate meshes that may be used in FEA analysis software
DegenGeom - to generate various simplified representations of geometry models like point, beam and camber surface models
VSPAERO - for vortex lattice or panel method based aerodynamic and flight dynamic analysis

Wave Drag Analysis - for estimating wave drag of geometries
Parasite Drag Analysis - for estimating parasite drag of geometries based on parameters like wetted area and skin friction coefficient
Surface fitting - for fitting a parametric surface to a point cloud
Texture Manager - for applying image textures to geometry for aiding visualization
FEA Structure - for creating internal structures such as ribs and spars




= Compatibility with other software

=
OpenVSP permits import of multiple geometry formats like STL, CART3D (.tri) and PLOT3D.
Point clouds may also be imported and used to fit a parametric surface.
Geometry created in OpenVSP may be exported as STL, CART3D (.tri), PLOT3D, STEP and IGES, OBJ, SVG, DXF and X3D file formats. These file formats allow geometries to be used for mesh generation and in CFD or FEA software.




Community repository






= OpenVSP Hangar

=
OpenVSP Hangar (also VSP Hangar) provides users a place to upload models and promotes sharing of geometry created in OpenVSP. Each model is allowed revisions with accompanying details on source quality.
Since end of 2023, OpenVSP Hangar has been closed and no backup downloads has been provided.




= OpenVSP Airshow

=
On 22 August 2024, OpenVSP Airshow (also VSP Airshow), a successor to OpenVSP Hangar, has been launched.

All of the v3 models on the Hangar have been ported over to the Airshow.




OpenVSP Workshop


OpenVSP Workshop — is an offline event where developers and users meet to discuss progress and use of OpenVSP. The Workshop has been held annually since 2012 (except 2018). The 2020 and 2021 Workshops were held online due to the COVID-19 pandemic. The 2024 Workshop was held at the Museum of Flight in Seattle.
Papers, slides and other workshops materials published on OpenVSP wiki site in a few days after workshops ends.




OpenVSP Ground School


OpenVSP Ground School is a set of comprehensive tutorials under development by Brandon Litherland at NASA. Ground school tutorials provide details on OpenVSP features and techniques, along with tutorials for beginner and advanced users, and are hosted on the Langley Research Center website.




See also



Comparison of computer-aided design software
XFOIL
XFLR5




References






External links


VSP Airshow

Kata Kunci Pencarian:

• OpenVSP
• FLTK
• XFOIL
• Aerodynamic potential-flow code
• RattleCAD

OpenVSP

OpenVSP

Releases · OpenVSP/OpenVSP · GitHub

OpenVSP · GitHub

OpenVSP 4.1.22 Released | Blogs

OpenVSP 3.7.0 Released | Blogs

OpenVSP - Wikiwand

OpenVSP 3.21.1 Released! | Blogs

OpenVSP 4.1.22 Released | Blogs

OpenVSP put to good work | Blogs

OpenVSP 3.11.0 Released | Blogs

OpenVSP 3.27.0 Released | Blogs

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Daftar Isi

• stability analysis - Google Groups
• OpenVSP Hangar is online - Google Groups
• Re: [OpenVSP] Panel method errors - Google Groups
• VSPAero Stability File Output - Moment Coefficients - Google …
• Openvsp design inlet - Google Groups
• Automate VSPAero with MATLAB - Google Groups
• About accuracy of drag/lift-to-drag ratio - Google Groups
• STL File Import - Google Groups
• OpenVSP - Google Groups
• OpenFOAM with OpenVSP - Google Groups

stability analysis - Google Groups

Aug 22, 2024 · I've read the vast majority of the content here on stability analysis in the last few days, which has helped me understand more about OpenVSP's stability analysis capabilities, …

OpenVSP Hangar is online - Google Groups

Jul 18, 2023 · The OpenVSP Hangar is back online! After an extended outage, the OpenVSP Hangar is back online. We're optimistic that we have the issues worked out, but if something …

Re: [OpenVSP] Panel method errors - Google Groups

May 10, 2020 · When you launch VSPAERO in panel mode, OpenVSP creates a MeshGeom that it sends to VSPAERO. If you save that model, OpenVSP will store that mesh in the model -- …

VSPAero Stability File Output - Moment Coefficients - Google …

Sep 28, 2020 · However, I know a lot of other OpenVSP users are very interested in flight simulation. There are lots of flight sim hobbyists who would appreciate an easier way to go …

Openvsp design inlet - Google Groups

May 6, 2022 · Just because you CAN do something in OpenVSP doesn't mean that you SHOULD. For detailed features like this, CAD is really the better way to go. Ducted or buried …

Automate VSPAero with MATLAB - Google Groups

Jul 2, 2022 · 1) You can use Matlab to write *.vspaero files yourself -- using OpenVSP to write out the required geometry files. Then you would run VSPAERO from the command line using a …

About accuracy of drag/lift-to-drag ratio - Google Groups

Oct 12, 2021 · The results visualization built-in to OpenVSP is meant to be a quick-check diagnostic tool to help you develop confidence in your solution. In my experience, the best way …

STL File Import - Google Groups

Jul 9, 2017 · As you above mentioned that VSP require water tight solid, i was able to create the water tight solid..i imported the geometry and tried to add actuator disk; but now the problem is …

OpenVSP - Google Groups

The OpenVSP discussion group is the place to ask questions, report problems, make requests, or just discuss OpenVSP. When joining, give us a short message about why you want to join. It …

OpenFOAM with OpenVSP - Google Groups

Mar 5, 2013 · >> Welcome to OpenVSP. >> >> We have various users who are driving various CFD tools with OpenVSP. >> Done right, I believe this can be done well. I have a lot of >> …