Parasolid is a commercial geometric modeling core developed and supported by Siemens PLM Software .
Siemens PLM Software uses Parasolid in its own NX , Solid Edge , Femap, and Teamcenter systems, and also provides licenses to independent software vendors and end users — for example, SolidWorks [1] .
The Parasolid core is intended for the mathematical representation of the three-dimensional shape of the product and the management of this model. The geometric data obtained with its use are used by computer-aided design ( CAD ), technological preparation of production ( CAM ) and engineering analysis ( CAE ) systems in the development of structural elements, parts and assemblies [2] .
Parasolid supports multiple processor cores (SMPs) and includes many object-oriented features for applications running on Windows NT , UNIX , and LINUX .
A common format ensures data integrity between internal applications and commercial systems. The concept of data exchange is known as “Parasolid Pipeline” and means the exchange of Parasolid solid-state models stored in the open .x_t file format. Another .x_b format is a binary format that is less dependent on hardware and does not produce errors during conversion [3] .
Content
Creation History
Parasolid is the successor of the ROMULUS kernel [4] , developed by Shape Data in 1978. The first version of Parasolid appeared in 1988 , shortly after that the Shape Data was absorbed by McDonnell Douglas , and the Parasolid core formed the basis of the Unigraphics system [5] .
Functionality
Parasolid functionality includes over 800 objects based on functions, including model creation, query and editing utilities, and high-level application functions. Parasolid also provides support for visualization and graphic tools, including hidden line calculation algorithms, projection view generation, geometry tessellation, and functions for analyzing the mass-inertial characteristics of geometric objects.
Simulation tools will allow users to create and edit models by applying Boolean operations , such as union, subtraction, intersection. When working, you can combine wire, solid, sheet and surface models. Work is being done with both non-parameterized objects and parametric ones.
In addition to having a set of basic geometric primitives, Parasolid offers several methods for obtaining solid-state geometry using structural elements: drawing (extruding) flat profiles along a given path, rotating profiles, embossing to create complex bosses and pockets, creating arrays of existing elements.
Surface modeling tools are represented by several basic algorithms:
- Note - allows you to create complex shapes using moving the profile along the guides.
- Surfaces, according to the sets of sections with the task of tangency and other parameters of the form control.
- Curve grid surface
- Surfaces limited by a given contour.
- Conical surfaces
The Parasolid kernel also implements the function of obtaining solids by giving the thickness of a given surface. A wide range of possibilities for creating slopes, fillets, chamfers, and scaling is presented for editing solid-state geometry and surfaces.
Parasolid also includes tools for direct editing of the topological description of model geometry elements: displacement, rotation, displacement, replacement, copying, etc. Also implemented the ability to impose geometric dependencies between the geometric elements of the model (faces and edges).
Models created using Parasolid can be used as finite 3D representations with the possibility of analyzing mass-inertial characteristics, searching for intersections, modeling kinematic mechanisms, constructing finite element grids and solving many other applied engineering problems.
Application
Parasolid is the basic geometric modeling platform for many of the world's leading CAD systems, technological design systems and engineering analysis ( CAD / CAM / CAE ). Including such systems as [6] [7] :
- Abaqus
- Altair HyperWorks
- ANSYS Icem-CFD
- Artube
- AutoPLANT
- Cimatron e
- Delcam
- Designflow
- Design space
- Femap
- GibbsCAM
- Ironcad
- Mastercam
- Microstation
- Moldflow
- Msc.patran
- MSC.SimXpert
- NX (Unigraphics)
- Onecnc
- Powershape
- Renishaw Productivity + [8]
- Solid edge
- Solidface
- Solidworks
- STAR-Design
- T-FLEX CAD
- Topsolid
- Vectorworks
- Virtual gibbs
- WorkXPlore 3D
Parasolid is also used by engineering companies ( Boeing , General Electric , Israel Aircraft Industries , Mitsubishi Motors , etc.) to develop special internal applications [9] .
Sources
- ↑ Why, the creator of SolidWorks for his mysterious new CAD system chose the geometric core Parasolid // isicad.ru. - September 11, 2013.
- ↑ Parasolid XT Format Reference. . Archived July 22, 2011.
- ↑ Overview of universal transmission formats for CAD geometry // sapr-journal.ru.
- ↑ Encyclopedia of PLM. ROMULUS // Encyclopedia PLM ..
- ↑ CAD Chronology: The 80's // mbdesign.net.
- ↑ Parasolid // Cadobzor.ru.
- ↑ T-FLEX CAD 7.0 - Russian CAD system of a new generation based on the Parasolid core // Magazine CAD and Graphics.
- ↑ Productivity + // Renishaw.
- ↑ Three and a half million active copies of Parasolid // isicad.ru. - March 4, 2011.
Links
See also
- Siemens PLM Software
- Nx
- Solid edge
- Jt
- D-cubed
- Synchronous Technology