GB/T 46849.8-2025Technical product documentation - Requirements for model based definition - Part 8: Data checking (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 8 of GB/T 46849 "Technical Product Documentation Requirements Based on Model Definition". GB/T 46849 has been published. The following parts were included.

1.General Provisions;

---Part 2.3D Annotation;

5.Detection Data;

7.Data Organization;

8.Data Inspection;

9.Data Release. Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed and is under the jurisdiction of the National Technical Committee on Standardization of Technical Product Documentation (SAC/TC146). This document was drafted by: XCMG Construction Machinery Co., Ltd., AECC Xi'an Power Control Technology Co., Ltd., and CRRC Qingdao Sifang Co., Ltd. Qingdao Sifang Locomotive & Rolling Stock Co., Ltd., Beijing Aerospace Systems Engineering Research Institute, Shandong University Huatian Software Co., Ltd., CRRC Dalian CRRC Corporation Limited, CRRC Zhuzhou Electric Locomotive Co., Ltd., CRRC Qishuyan Locomotive Co., Ltd., SAIC-GM-Wuling Automobile Co., Ltd. Limited Liability Company, China Machinery Productivity Promotion Center Co., Ltd., and China Machinery Research Institute of Standards and Technology (Beijing) Co., Ltd. The main drafters of this document are. Wu Rui, Wu Jiawei, Wang Yu, Wen Bo, Pi Zan, He Yantian, Zhang Lichen, Ruan Siwei, Shi Guoyou, and Li Junping. Wang Yunfeng, Pan Kanghua, Gao Hongwei.

With the gradual application and promotion of 3D computer-aided design (CAD) technology, and the application of model-defined design (MBD) technology in manufacturing... The implementation within enterprises has brought about significant changes in the development model and process of mechanical products, with three-dimensional digital models replacing two-dimensional drawings. Paper gradually became the sole basis for product development, which was a huge change in terms of technology, management, and mindset. To adapt to this change, systematically address the bottlenecks in product 3D design and manufacturing, and promote the popularization of model-based definition technology... Engineering applications support the digital transformation and upgrading of my country's manufacturing industry, and have led to the formulation of GB/T 46849 "Technical Product Documentation Based on Model Definition". The requirements are as follows: GB/T 46849 is based on the definition and application process of the three-dimensional model of the entire product life cycle, and is proposed to consist of 9 parts.

1.General Provisions. The purpose is to define the general, detailed, and management requirements based on the model definition, serving as a framework for the entire system. The foundation and framework of the standards.

---Part 2.3D Annotation. The purpose is to define the classification and composition of 3D annotation, and its application in 3D digital models of products. General and detailed requirements for 3D annotation are provided to ensure that the annotation information is clear, complete, and understandable.

3.Design Data. The purpose is to define the classification and composition of design data based on the model definition, and to define the design data... General and detailed requirements for design and management are required to ensure the accuracy and sufficiency of design data as the sole data source.

4.Process Data. The purpose is to define the classification and composition of model-based process data, as well as the definition of process data. General and detailed requirements for management and control are established to ensure effective coordination between process design and manufacturing processes.

5.Detection Data. The purpose is to define the classification and composition of detection data based on the model definition, and its relationship with the geometric model. The requirements, as well as the general and detailed requirements for the definition and management of test data, ensure the accurate implementation of quality control.

1 Scope

GB/T 46849.8-2025 is the Chinese national standard covering checking an MBD dataset before it is released - the geometric quality of the model, the completeness and consistency of the annotations, the attributes and the references, run as automated checks rather than by eye. A model that fails these checks is the modern equivalent of an ambiguous drawing. It is one of the nine parts of GB/T 46849 issued together on the same day, a first edition, and it belongs with the design data management series GB/T 46848. It was issued on 31 December 2025 and has been in force since 1 April 2026, as a first edition. The document is under the responsibility of the Standardization Administration of China. This page is published from the official record of the 2025 edition; the clause text of a standard this recent is not yet in circulation, and the figures, limits and tables it contains are those of the document itself, delivered in full with the English translation.

This document specifies the general requirements, inspection methods, inspection content, inspection process, inspection results, and applicable laws for data inspection based on model definitions. Requirements. This document is applicable to the inspection of data at all stages of product design, process design, manufacturing, testing, and service based on model definitions.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document.

GB/T 3102.1 Quantities and units of space and time

GB/T 3102.3 Quantities and Units in Mechanics

GB/T 19678.1 Structure, content and representation of instructions for use - Part

3 Terms and Definitions

The terms and definitions defined in GB/T 24734.1 and GB/T 46849.1, as well as the following terms and definitions, apply to this document.

3.1 Software check (softwarecheck) The inspection is performed on model-defined data using software that defines inspection items and judgment rules.

3.2 Batch check Simultaneously, software checks are performed on multiple sets of data based on model definitions.

4 Process Data

GB/T 46849.5-2025 Technical Product Documentation - Model Definition Requirements - Part

5 Test Data

GB/T 46849.6-2025 Technical Product Documentation - Model Definition Requirements - Part

6 Service Data

JB/T 12392 Representation of Machining Process Parameters

JB/T 12393 Graphic Symbols for Machining Processes

JB/T 12394 Specification for Three-Dimensional Annotation of Machining Process Information

7 Annotation Requirements

GB/T 24734.9 General Rules for Digital Product Definition Data of Technical Product Documentation - Part

9 Application of Benchmarks

GB/T 46849.1 Technical Product Documentation - Requirements Based on Model Definition - Part