GB/T 16656.52-2023Industrial automation systems and integration - Product data representation and exchange - Part 52: Integrated generic resource: Mesh-based topology (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

This document is Part 52 of GB/T 16656 "Data Expression and Exchange of Industrial Automation Systems and Integrated Products". GB/T 16656 the following sections have been published.

---Part 1: Overview and basic principles;

---Part 11: Description method. EXPRESS Language Reference Manual;

---Part 21: Implementation method. plain text encoding of exchange file structure;

---Part 22: Implementation method. Standard data access interface;

---Part 28: Implementation method. EXPRESS schema and XML expression of data (using XML schema);

---Part 31: Conformance testing methodology and framework. basic concepts;

---Part 32: Conformance testing methodology and framework. Requirements for testing laboratories and customers;

---Part 34: Conformance testing methodology and framework. abstract testing methods for application protocol implementation;

---Part 41: Integrating Common Resources. Product Description and Support Principles;

---Part 42: Integrating common resources. geometric and topological expressions;

---Part 43: Integrating common resources. expression structures;

---Part 44: Integrating common resources. product structure configuration;

---Part 45: Integrating common resources. materials and other engineering properties;

---Part 46: Integrating common resources. visual display;

---Part 47: Integrating Common Resources. Shape Change Tolerance;

---Part 49: Integrated common resources. process structure and characteristics;

---Part 51: Integrating general resources. mathematical expressions;

---Part 52: Integrating common resources. Grid-based topology;

---Part 54: Integrating general resources. classification and set theory;

---Part 55: Integrating common resources. processes and hybrid expressions;

---Part 56: Integrating common resources. status;

---Part 101: Integrated Application Resources. Drawing;

---Part 105: Integrated Application Resources. Kinematics;

---Part.201.Application protocol. Explicit drawing;

---Part 202: Application protocol. related drawings;

---Part 203: Application protocols. Configuration control design;

---Part 238: Application protocol. Application interpretation model for computer numerical controllers;

---Part 501: Application explanation construction. edge-based wireframe;

---Part 502: Application Interpretation. Shell-based wireframes;

---Part 503: Application to interpret construction. geometrically bounded two-dimensional wireframe;

---Part 504: Application of interpretation constructs. drawing annotations;

---Part 505: Application interpretation structure. pattern structure and management;

---Part 506: Application interpretation constructs. drawing elements;

---Part 507: Application to interpret construction. geometrically bounded surfaces;

---Part 508: Application explanation construction. non-manifold surfaces;

---Part 509: Application explanation construction. manifold surface;

---Part 513: Application of interpretation constructs. basic boundary expressions;

---Part 520: Application interpretation constructs. related drawing elements;

---Part 1001: Application module. Appearance assignment;

---Part 1002: Application module. color;

---Part 1003: Application module. Curved appearance;

---Part 1004: Application modules. basic geometric shapes;

---Part 1005: Application module. basic topology;

---Part 1006: Application module. basic expression;

---Part 1007: Application module. General surface appearance;

---Part 1008: Application module. layer assignment;

---Part 1009: Application Modules. Shape Appearances and Layers.

This document is equivalent to ISO 10303-52:2011 "Industrial automation systems and integrated product data expression and exchange Part 52.

Integrating common resources. Grid-based topologies.

This document has made the following minimal editorial changes.

---Incorporates the amendments to ISO 10303-52:2011/Cor.1.2014, and uses Vertical double lines (|) are marked.

Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.

Introduction

GB/T 16656 is a national standard for computer interpretable representation and exchange of product data. Its purpose is to provide an independent it is a neutral mechanism for any specific system to describe product data throughout the product life cycle. The nature of this description makes it suitable not only for neutral texts software exchange and is suitable as a basis for implementing and sharing product databases and archives.

GB/T 16656 "Industrial automation systems and integrated product data expression and exchange" consists of the following series.

---Parts 1 to 19 describe the method;

---Implementation methods of Part 20 to Part 29;

---Part 30 to Part 39 conformance testing methods and framework;

---Parts 40 to 59 integrate common resources;

---Integrated application resources from Part 100 to Part.199;

---Part.200 to Part 299 Application Agreement;

---Parts 300 to 399 Abstract Test Suite;

---Part 400 to Part 499 application modules;

---Parts 500 to 599 apply interpretation structures;

---Parts 1000 to 1999 application modules.

This document is part of the Integrated Resources series. This document is mainly divided into.

---mesh_topology_schema (mesh topology mode);

---mesh_connectivity_schema(mesh connection mode);

---mesh_function_schema (mesh function mode).

Figure 1 uses the EXPRESS-G language to represent the patterns in this part of the standard and other patterns that define the integration resources of this standard.

The relationship between the EXPRESS-G language is explained in GB/T 16656.11, and the bold box method of identification. Among them, support_resource_schema (support resource schema) is defined in GB/T 16656.41, topology_ Schema (topology mode) is defined in GB/T 16656.42, mathematical_constructs_schema (mathematical construction mode) and mathematical_functions_schema (mathematical function schema) are defined in ISO 10303-50, mathematical_description_of_ distribution_schema (mathematical description of distributed schema) is defined in GB/T 16656.51, structural_response_representation_ (ISO 13584 universal expression pattern) is defined in GB/T 17645.20.Furthermore, in addition to the ISO 13584 universal expression pattern, Figure 1 the pattern shown in is a component that integrates resources. See Appendix E for additional information.

Many applications today must process large amounts of data, which is digital in nature; data volumes can be measured in gigabytes, in in some cases it is even measured in terabytes. Here, typical examples include computational fluid dynamics, dynamic simulation of vehicle behavior, and Process a variety of experimental data from global weather measurements.

The main concern in processing this type of data is the optimized representation and structure of the data for transmission and storage; as part of this optimization process, the data is dumped Prefers to be stored in large arrays. Within that large array, any specific data element can be referenced by a simple index within the array.

When data is part of a computer simulation, such data is usually associated with some kind of grid (structured or unstructured) that can be tied to it is fixed to the vertices or elements of the mesh, and simpler meshes can usually be represented by indexing. In this part, the calculation flow is mainly used Examples from the field of body dynamics.

This document provides a common, application-independent way of representing indexable data and grids.

Figure 1 Pattern relationship

Industrial automation systems and integrated product data representation Exchange with Part 52: Integrating Common Resources.

Grid-based topology

1 Scope

This document provides a common way of representing application-independent structured and unstructured grids, as well as definitions on such grids.

mathematical functions and numerical data. The schemas in this document are written in the EXPRESS language, which is in ISO 10303-11 definition.

The following are within the scope of this document.

---Grid-based topology;

---Unit connectivity and multi-block grid interface;

---Mathematical functions defined on the grid;

---The association of numerical data with the elements, faces, edges and vertices of the mesh.

The following are outside the scope of this document.

---Application of grid topology;

---Application of grid interface;

---The semantics of grid-related data.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations for undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

ISO 10303-1 Industrial automation systems and integrated product data representation and exchange Part 1: Overview and basic principles (In-Note. GB/T 16656.1-2008 Industrial automation systems and integrated product data expression and exchange Part 1: Overview and basic principles (ISO 10303-1:1998,MOD) ISO 10303-11 Industrial automation systems and integrated product data representation and exchange Part 11: Description methods.

Note. GB/T 16656.11-2010 Industrial automation systems and integrated product data expression and exchange Part 11: Description method. EXPRESS language Language Reference Manual (ISO 10303-11:2004, IDT) ISO 10303-41 Industrial automation systems and integrated products data representation and exchange Part 41: Integrated common resources. products Note. GB/T 16656.41-2010 Industrial automation systems and integrated product data expression and exchange Part 41: Integrated general resources. Product description and supporting principles (ISO 10303-41:2005, IDT) ISO 10303-42 Industrial automation systems and integrated product data representation and exchange Part 42: Integrated common resources. Geometry