Data analysis of ship ventilation ducts based on CATIA V6
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摘要:
目的 为深入探索CATIA V6船舶风管设计和相关数据组成， 方法 结合实际工程背景，建立CATIAV6通风系统三维设计方法，分析管附件资源库结构组成和风管放样流程；围绕系统设计各模块组成，指出各模块处理对象和数据储存位置，以明确研究对象。在此基础上，系统阐述基础技术表定义和具体内容，重点介绍其内容扩展性，并针对通风管路三维模型，深入研究底层数据结构。 结果 经分析研究，得到了主要技术表之间的关联性。 结论 研究结果有利于设计者深入掌握通风系统设计，对定制开发可提供理论指导和技术支撑。 Abstract: In order to research on CATIA V6 ship duct design and related data, combined with a practical engineering background, a three-dimensional design method for the CATIA V6 ventilation system is exhibited, and the catalog composition of duct fittings and duct lofting process are presented. Meanwhile, revolving around the system design modules, the module processing objects and data storage location are analyzed in order to determine the object of study. And on this basis, the definition and specific content of the engineering technological tables are illustrated in detail; specifically, the contents are extended. Moreover, in light of the three-dimensional model, further research into the underlying data structure of ventilation ducts is implemented. The relationships between the major technological tables are shown. The results of the study are not only beneficial for designers to grasp design technology, but also essential for software developers to secure theoretical guidance and technical support.-
Key words:
- ventilation duct /
- three-dimensional design /
- CATIA V6 /
- technological table /
- data analysis
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图 3 通风系统设计各模块之间的关系
Figure 3. The relationship between the ventilation system design modules
图 5 CATIA V6通风系统模型数据结构
Figure 5. The model data structure of CATIA V6 ventilation system
表 1 船舶三维设计软件性能对比
Table 1. The performance comparison of 3D ship design software
软件
名称关联
设计模型
数据量CAD/CAE
集成其他 CADDS5 无 较大 缺乏集成 停止发布新版本 FORAN 无 较小 缺之集成 未实现版本控制和变更管理 TRIBON 无 较小 缺之集成 未实现版本控制和变更管理 CATIA V5 较强 数据量大，硬件配置髙 集成度高 具备版本管理和权限控制，存在船舶设计功能缺失 CATIA V6 较强 数据量大，硬件配置髙 集成度高 具备版本管理和权限控制，需部分定制开发 
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表 2 基础技术表名称及相关功能
Table 2. The names and functions of basic technological tables
名称 功能 Standard Table 定义设计标准体系 Material Category Table 定义材料种类 Material Table 定义材料名称 Part Subtype Table 定义管附件子类 HVAC Height Table 定义风管截面高度或外径 HVAC Width Table 定义风管截面宽度 HVAC Equivalent Diameter Table 定义风管等效通径 End Style Table 定义管附件端部类型 HVAC Duct Reference Dimension Table HVAC Nominal Bend Radius Table 定义风管规格尺寸定义弯管弯模倍数 HVAC Bend Diameter Table 定义风管弯模直径 HVAC Turn Rule Table 定义风管弯管半径 HVAC Minimum Straight Length Table 定义风管最短直管段长度 HVAC Automatic Part Rule Table 定义风管自动匹配规则
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表 3 风管等效通径表的主要字段说明
Table 3. The description of main fields in HVAC duct equivalent diameter table
离散值 字段类型 单位 含义 Equivalent Diameter Nominal pipe size - 等效通径 Shape String - 截面类型 Height Length mm 矩形管高度或圆管外径 Width Length mm 矩形管宽度 Corner Radius Length mm 折角半径
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表 4 风管不同截面形状参数取值
Table 4. The parameter values for different ross-sectional shapes of ducts
参数值 截面类型 圆形截面 矩形截面 跑道截面 椭圆截面 V_Height > 0 > 0 > 0 > 0 V_Width V_Height > 0 > 0 > 0 V_Corner Radius 0 ≥0 V_Height/2 0
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表 5 管材规格表的主要字段说明
Table 5. The description of main fields in HVAC duct reference dimension table
离散值 字段类型 单位 含义 Title String - 风管名称 Equivalent Diameter Nominal pipe size - 等效通径 Shape String - 截面类型 Material String - 材料牌号 Material Category String - 材料类别 Height Length mm 矩形管高度或圆管外径 Width Length mm 矩形管宽度 Corner Radius Length mm 折角半径 Wall Thickness Length mm 壁厚 End Style String - 端部类型 Linear Weight Linear mass kg/m 线密度
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