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Basic data
| Standard ID | GB/T 46849.3-2025 (GB/T46849.3-2025) |
| Description (Translated English) | Technical product documentation - Requirements for model based definition - Part 3: Design data |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | J04 |
| Classification of International Standard | 01.100.01 |
| Word Count Estimation | 30,335 |
| Date of Issue | 2025-12-31 |
| Date of Implementation | 2026-04-01 |
| Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China |
GB/T 46849.3-2025: Technical product documentation - Requirements for model based definition - Part 3: Design data
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 01.100.01
CCSJ04
National Standards of the People's Republic of China
Technical product documentation is based on model definition requirements.
Part 3.Design Data
Part 3.Design data
Published on 2025-12-31
Implemented on April 1, 2026
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of contents
Preface III
Introduction IV
1.Scope 1
2 Normative References 1
3.Terms and Definitions 1
4.Classification of Design Data 1
5.Composition of Design Data 1
6 General Requirements 3
7.Detailed Requirements 3
References 22
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 3 of GB/T 46849 "Technical Product Documentation Requirements Based on Model Definition". GB/T 46849 has been published.
The following parts were included.
---Part 1.General Provisions;
---Part 2.3D Annotation;
---Part 3.Design Data;
---Part 4.Process Data;
---Part 5.Detection Data;
---Part 6.Service Data;
---Part 7.Data Organization;
---Part 8.Data Inspection;
---Part 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. CRRC Qishuyan Locomotive Co., Ltd., the 38th Research Institute of China Electronics Technology Group Corporation, and Hangzhou Xindi Digital Technology Co., Ltd.
Digital Engineering Systems Co., Ltd., Nanjing Qijun Software Co., Ltd., Beijing Aerospace Systems Engineering Research Institute, CRRC Dalian Locomotive & Rolling Stock Co., Ltd.
China Aero Engine Corporation Xi'an Power Control Technology Co., Ltd., CRRC Zhuzhou Electric Locomotive Co., Ltd., Shandong University Huatian Software Co., Ltd.
Wanxiang Qianchao Co., Ltd., SAIC-GM-Wuling Automobile Co., Ltd., the 5719th Factory of the Chinese People's Liberation Army, and China Machinery Production Corporation.
Power Promotion Center Co., Ltd., and China Machinery Research Institute of Standards and Technology (Beijing) Co., Ltd.
The main drafters of this document are. Gao Kewei, Liu Jianhua, Zhang Hongqi, Zhang Xiangxiang, Peng Wei, Chen Zhiyang, Shao Xiaodong, Pi Zan, Zhang Lichen, and Wang Yu.
Ruan Siwei, He Yantian, Shi Bomei, Li Junping, Xiao Jiulin, Pan Kanghua, Gao Hongwei.
Introduction
With the gradual application and promotion of 3D computer-aided design (CAD) technology, and the application of model-defined design (MBD) technology in manufacturing...
Within enterprises, the development models and processes for mechanical products have undergone significant changes; three-dimensional digital models have replaced two-dimensional drawings.
Gradually becoming the sole basis for product development represents a tremendous transformation 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.
---Part 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.
---Part 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 definition...
General and detailed requirements for design and management are required to ensure the accuracy and sufficiency of design data as the sole data source.
---Part 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.
---Part 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.
---Part 6.Service Data. The purpose is to define the fundamental principles, classifications, and components of service data based on the model definition, and...
General and detailed requirements for service data definition and management to ensure information integration in product operation and maintenance and service processes.
---Part 7.Data Organization. The purpose is to define the organizational principles, requirements, and forms of data organization based on the model definition.
The format, annotation set display requirements, and data filtering requirements ensure the realization of data structuring and efficient retrieval.
---Part 8.Data Inspection. The purpose is to define the general requirements, inspection methods, and inspection content for data inspection based on model definitions.
Content, inspection process, inspection results and application requirements, to ensure data compliance and quality.
---Part 9.Data Publishing. The purpose is to define the basic principles, content, and target audience for data publishing based on the model definition.
The document outlines the release process, release architecture, release format, release item structure, and general and detailed requirements for data release to ensure product quality.
Product lifecycle data sharing and collaboration.
Technical product documentation is based on model definition requirements.
Part 3.Design Data
1 Scope
This document specifies the classification and composition of design data based on model definition, as well as the general requirements and details for design data definition and management.
Detailed requirements.
This document applies to the definition and management of design data 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 17451-1998 Technical Drawing Drawing Methods and Views
GB/T 17452-1998 Technical Drawing Methods. Sectional Views and Cross-sectional Views
GB/T 24734.1-2009 Technical Product Documentation - Digital Product Definition Data - Part 1.Terms and Definitions
GB/T 24734.8-2009 General Rules for Digital Product Definition Data of Technical Product Documentation - Part 8.Model Numerical and Dimensional Requirements
GB/T 26099.4-2010 General Rules for 3D Modeling of Mechanical Products Part 4.Engineering Drawings of Model Projection
GB/T 46849.1-2025 Technical Product Documentation - Requirements Based on Model Definition - Part 1.General Provisions
3 Terms and Definitions
The terms and definitions defined in GB/T 24734.1-2009 and GB/T 46849.1-2025 apply to this document.
4.Classification of Design Data
Design data can be divided into four categories. geometric information, constraint information, engineering attributes, and management information.
5.Composition of Design Data
5.1 The design data mainly consists of model geometry and auxiliary geometry in the geometric information, and dimensional constraints, tolerance constraints, and datum constraints in the constraint information.
Manufacturing constraints, geometric constraints, expression constraints, assembly constraints, basic attribute information, material property information, and technical requirement information in engineering properties.
The information consists of hierarchical structure information, coloring and rendering information, template information, and version, design time, approval process, and change records in the management information.
The details are shown in Table 1.
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