ISO/PDTS 10303-1097 was prepared by Technical Committee ISO/TC 184, Industrial automation systems and integration, Subcommittee SC4, Industrial data.
This International Standard is organized as a series of parts, each published separately. The parts of ISO 10303 fall into one of the following series: description methods, integrated resources, application interpreted constructs, application modules, application protocols, abstract test suites, implementation methods, and conformance testing. The series are described in ISO 10303-1. A complete list of parts of ISO 10303 is available from the Internet:
http://www.nist.gov/sc4/editing/step/titles/.
Annexes A and B form an integral part of this part of ISO 10303. Annexes, C, D, E, aand F are for information only.
A structured mesh is a mesh that has a regular arrangement of its cells, and that can be defined by specifying the parameters of the arrangement. Each cell is not defined separately.
The topology of the cells in an structured mesh is specified for the mesh as a whole, and is not deduced from the nodes. Using this application module, the number of instances is independent of the number of cells in the mesh.
This application module supports the definition of a structured finite element mesh.
The following are within the scope of this application module:
the definition of a structured mesh by specifying its dimensions, and the number of cells in each dimension;
EXAMPLE - A CFD analysis simulates a flow transient. The mesh for the volume of the fluid that consists of 20´20´50 cells in a structured array. The period of the transient is divided into 30 time steps.
The results of the analysis take the form of a function define with respect to a 4 dimensional 20´20´50´30 mesh, in which the first three dimensions correspond to geometric space, and the fourth to time. This mesh, consisting of 600000 cells, is defined by a single instance.
the extraction of a component of a structure mesh.
EXAMPLE - One plane of the mesh described in the previous example lies on the surface of part XYZ_123. The time varying pressure on part XYZ_123 is defined with respect to a 3 dimensional 20´50´30 mesh, in which the first two dimensions correspond to position on the surface, and the third to time.
The relationship between the structured mesh for the volume, and the structured mesh for the surface is defined. This relationship enables the variation of pressure over the surface to be derived from the variation of pressure within the volume.
The following are not within the scope of this application module:
NOTE - An unstructured mesh is defined in the unstructured mesh module.
If you have a comment on this module, please send it to the support team