GB/T 39744-2021 in English
VALIDGeneral requirements of mechanical product electronic manual based on three-dimensional model
- Issued on:2021-03-09
- Implemented on:2021-10-01
- File Format:PDF
- Delivery:Via email within 5 business days
$388.00
| Standard No: | GB/T 39744-2021 |
| Document status: | VALID |
| Title in English: | General requirements of mechanical product electronic manual based on three-dimensional model |
| Title in Chinese: | 基于三维模型的机械产品电子手册编制通用要求 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2021-03-09 |
| Implemented on: | 2021-10-01 |
| ICS Classification: | 01.100.01-Technical drawings in general |
| Chinese Classification: | J04-Basic standards and general methods |
| Professional Classification: | GB-National Standard |
| Related Keywords: | mechanical product
electronic manuals improvement value data carrier electronic manuals general requirements construction requirements |
| Related Topics: | 3D model
three dimensional 3D standard Product electronics 3D model reflection e-Manual Brochure template Machinery Products Machinery Products GBT39744 GB/T 39744-2021 Model vva general requirements Mechanical and electronic product standards |
《GB/T 39744-2021基于三维模型的机械产品电子手册编制通用要求》由TC146（全国技术产品文件标准化技术委员会）归口，主管部门为国家标准化管理委员会。
Introduction
Analysis of the core content of the standard
This standard systematically regulates the entire process of compiling electronic manuals for mechanical products based on 3D models for the first time, innovatively proposes the concept of Service Bill of Materials (SBOM), and realizes closed-loop management from design data to service data. The standard is applicable to complex product fields such as engineering machinery, aerospace, etc.
Comparison of key technologies
| Technical elements | Traditional manuals | 3D electronic manuals | Improvement value |
|---|---|---|---|
| Data carrier | 2D drawings + text | 3D models + structured data | Information volume increased by 300% |
| Change efficiency | Single-point modification | Associated update | Maintenance cycle shortened by 60% |
| Interaction mode | Static reading | Disassembly and assembly animation + mechanism simulation | Training effect increased by 2 times |
Key points for SBOM construction and implementation
XCMG Group application case
In the implementation of the crane product line, through the EBOM-SBOM conversion rule:
- Define the minimum maintenance unit (hydraulic cylinder assembly is not disassembled)
- Add service attributes (lubrication cycle, torque parameters)
- Associate production archives (batch number, supplier data)
Achieve a 45% increase in after-sales service response speed
Data Module (DM) Specification
The standard stipulates the construction requirements of 7 types of DM:
- Description class: includes product structure and principle
- Fault class: requires marking of diagnostic codes and troubleshooting steps
- Diagram class: requires that the ball mark and exploded view match ≥95%
Each DM must contain version identification and security level metadata
Model lightweight processing
According to GB/T26099.2 requirements:
| Retain elements | Geometric features, constraints |
| Delete elements | Internal invisible structure |
| Precision control | Tolerance ≤ 0.1mm |
It is recommended to use the JT Open format to achieve cross-platform compatibility
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