ITER COMPUTER AIDED DESIGN (CAD) REFERENCE MANUAL

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ITER

ITER COMPUTER AIDED DESIGN (CAD) REFERENCE MANUAL

Computer Aided Design (CAD) Reference Manual

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Preface This CAD manual is split into four parts as follows: Part I.

To clarify how the ITER CAD work is managed and to explain access to the CAD drawings.

Part II.

To describe the CAD standard practices required for the ITER project.

Part III.

To explain access at the JWSs to the CAD models and drawings. To give instruction in usage of the ITER Integrated Model Management System (IMMS).

Part IV.

The appendices.

The individual parts contain the following sections. Part I. 1 Control of the CAD Data. 2 Drawings on the www. Part II. 1 Component and Plant Identification Scheme. 2 ITER Drawing Practices. 3 CATIA Information for CAD Users. 4 Mandatory CATIA Requirements for External Organisations. 5 Translation of 2D CATIA and 2D AutoCAD Models. Part III. 1 Models and Drawings on the www. 2 Using IMMS. Part IV. Appendix A Standard symbols for PFDÕs and P&IDs. Appendix B ISO Standards for Drawings. Appendix C Example of the WBS/RAM.

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PART I

MANAGEMENT OF THE CAD DATA AND ACCESS TO THE CAD DRAWINGS

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Table of Contents 1

Control of the CAD Data _________________________________________________5 1.1

Definition of Terms___________________________________________________5

1.1.1 1.1.2 1.1.3 1.1.3.1 1.1.3.2 1.1.4 1.1.4.1 1.1.5 1.1.5.1 1.1.5.2 1.1.5.3 1.1.6 1.1.7

1.2

Models and Drawings _________________________________________________________5 Objects ____________________________________________________________________5 Assembly Set (AS) and Design Set (DS) __________________________________________5 Objects within a Design Set (DS) _____________________________________________5 Objects within an Assembly Set (AS)__________________________________________6 CATIA - Computer Aided Three Dimensional Interactive Application ___________________6 ITER CATIA Project File ___________________________________________________6 IMMS - Integrated Model Management System_____________________________________6 IMMS Model Browser ______________________________________________________6 TDBASE ________________________________________________________________7 TDOVLY ________________________________________________________________7 WBS/RAM Ð Work Breakdown Structure/Responsibility Assignment Matrix _____________7 Abbreviations and Acronyms ___________________________________________________7

Integrated Model Management System (IMMS) Numbering___________________8

1.2.1 The IMMS Tag within CATIA _________________________________________________8 1.2.1.1 Subject Index _____________________________________________________________8 1.2.1.2 Sequential IMMS Number___________________________________________________8 1.2.1.3 Drawing Number __________________________________________________________9 1.2.1.4 Object Type ______________________________________________________________9 1.2.1.5 Revision Number and Status _________________________________________________9 1.2.1.6 Request for Modification ___________________________________________________11 1.2.1.7 Site ____________________________________________________________________11 1.2.1.8 Baseline ________________________________________________________________11 1.2.1.9 Date ___________________________________________________________________11 1.2.1.10 Designer Initials _______________________________________________________11 1.2.1.11 Task OfficerÕs Initials ___________________________________________________11 1.2.1.12 Title of Document______________________________________________________11 1.2.1.13 Abbreviated IMMS Tag__________________________________________________12

1.3

CAD Structure_____________________________________________________12

1.3.1 1.3.2 1.3.3 1.3.4 1.3.4.1 1.3.4.2 1.3.5

2

Drawing Search_____________________________________________________________12 Drawing Structure ___________________________________________________________12 M+D Model and Drawing Structure _____________________________________________13 Configuration Model Structure_________________________________________________14 Configuration Tokamak Models _____________________________________________14 Configuration Site Models__________________________________________________15 Revised Models in a DS ______________________________________________________15

1.4

Component and Plant Identification Scheme ______________________________15

1.5

Management Structure_______________________________________________15

Drawings on the www __________________________________________________17 2.1 2.1.1 2.1.2

2.2 2.2.1

2.3 2.3.1 2.3.2

2.4 2.4.1 2.4.2 2.4.3

Types of Structures__________________________________________________17 Drawing Search_____________________________________________________________17 Drawing Structure ___________________________________________________________17

ITER Database Home Page___________________________________________17 Representations within the Web Browser_________________________________________18

The Drawing Search ________________________________________________18 Using the Drawing Search ____________________________________________________19 Downloading the drawing _____________________________________________________19

The Drawing Structure ______________________________________________20 Structure Navigation_________________________________________________________20 Using the Drawing Structure __________________________________________________21 Viewing the Drawing ________________________________________________________22

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Control of the CAD Data

At the start of the ITER-EDA, CAD systems did not have model management tools that allowed for change control. It was therefore decided by the project management to develop our own management tools. These tools evolved into the ITER Integrated Model Management System (IMMS) that we use today.

1.1

Definition of Terms

1.1.1

Models and Drawings

In CAD systems with 3D capabilities, it is often normal practice to have the 3D geometry and the drawings in the same CAD model file. The ITER CAD design office management have decided to separate the 3D geometry from the 2D drawings. This gives us the advantage of having only one 3D geometry defining a particular component. At the same time using the CAD tools (see section 1.1.5) we have specially developed we can assemble these models together to make larger assemblies. Drawings from the 3D models can be created at any stage in this process again using these tools. 1.1.2

Objects

An object is either an electronic folder (AS and DS) within the IMMS database or a CATIA model (3D, 2D and PL) linked to the IMMS database (see section 1.2). Several examples of object types are: CATIA Objects 3D Model 2D Drawing PL Parts List 1.1.3

AS DS

IMMS Objects Assembly Set Design Set

Assembly Set (AS) and Design Set (DS)

An Assembly Set (AS) and a Design Set (DS) is a system of computer folders that contain the references to individual models and drawings. They are used to assemble together the larger assemblies from the smaller component models. The AS is hierarchically our highest level object in IMMS. In a very simplistic form, the AS refers to the drawings and the DS refers to models. See the sections 1.1.3.1 and 1.1.3.2 for a full explanation of the objects within the As and DS. 1.1.3.1

Objects within a Design Set (DS)

A DS is a computer folder within IMMS (see section 1.1.5), that contains references to models and lower level DSs that make up a particular design assembly. It can be read by the Browser and the models referenced in the DS accessed by CATIA through TDOVLY (see section 1.1.5.3). When a DS is read by TDOVLY, the models referenced in the DS will open in CATIA as an overlay model session. The DS is given a unique tag (see section 1.2.1) so

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that all the contents can be tracked. A DS does not directly contain any drawings but can include references to models that contain drawings. 1.1.3.2

Objects within an Assembly Set (AS)

An AS is a computer folder within IMMS (see section 1.1.5), that contains the references to drawings, lower level ASs and DSs that make up a particular design assembly. An AS can only be read by the Browser (see section 1.1.5.1) Ð it is not accessible by CATIA. The AS does not directly contain reference to any models only the DS that contains the models. The AS is given a unique tag (see section 1.2.1) so that all the contents can be tracked. Note. The model that contains the drawings shown in an AS will be referenced in the lower level DS. 1.1.4

CATIA - Computer Aided Three Dimensional Interactive Application

The CATIA CAD system, marketed by Dassault Systemes France, is the system selected by the Project for all its CAD applications. CATIA was chosen for its power in 3D solid modelling and solid analysis. 1.1.4.1

ITER CATIA Project File

CATIA requires the use of a project file which defines and contains the geometric and project specific attributes (default colours, patterns, fonts, text heights, etc.). The ITER CATIA project file model can be obtained from the CAD Administrator. The project file is common to the JWS and the Home Teams. It is used to ensure the seamless transfer of CATIA models throughout the ITER project. 1.1.5

IMMS - Integrated Model Management System

The ITER Integrated Model Management System (IMMS) is designed to handle all of the relevant project information for CAD related documents to be recorded in the ITER project database. The system was developed in-house to meet these needs. IMMS is the term used to describe the entire system that manages and controls the ITER CATIA data. IMMS uses an Oracle database for storing the data. Specialised software is used to access the IMMS database. The three IMMS access programs are the IMMS Model Browser, TDBASE and TDOVLY. The CATIA models are stored externally to the database, but are recognised by IMMS through the model filename - TAG (see section 1.2.1), the directory where the model file is stored and internal IMMS coding. The TDBASE and TDOVLY programs are used under license from TDC Limited. 1.1.5.1

IMMS Model Browser

This is the Unix user interface to the IMMS database. The IMMS Model Browser handles the management of the ITER CAD models and drawings. This management process records, tracks, updates, replicates, notifies a list of addresses,

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indicates the status, and organises traffic among the joint working sites for CAD related documents. In the remainder of this manual, the IMMS model browser is referred to as Òthe browserÓ. 1.1.5.2

TDBASE

This is the program within CATIA that connects the CATIA models in their UNIX directories to the IMMS database. TDBASE has the functionality to read models from and register models to the IMMS database. This provides a user interface to the database directly from within the CATIA environment (see part III section 2). 1.1.5.3

TDOVLY

This is the program within CATIA that links design sets (DSs see section 1.1.8) to the IMMS database. TDOVLY has the functionality to read a DS and overlay the contained models in a CATIA session. This provides a user interface to the database directly from within the CATIA environment (see part III section 2). 1.1.6

WBS/RAM Ð Work Breakdown S tructure/Responsibility Assignment Matrix

The WBS/RAM is used by IMMS. Appendix C shows the two highest levels of the WBS/RAM. The WBS/RAM to the fifth level is available as a separate document. This WBS/RAM is reviewed regularly and updated when task officers are changed. 1.1.7

Abbreviations and Acronyms Abbreviation or Acronym Assy AS CSA Dia. DIU Drg. DOM DS IMMS JCT JWS Mech. P&ID PFD PL RAM Sht Sub-assy WBS

Full word Assembly Assembly Set CAD Structure Administrator Diameter Design Integration Unit Drawing Design Office Manager Design Set ITER Model Management System Joint Central Team Joint Work Site Mechanical Piping and Instrumentation Diagram Process Flow Diagram Parts List Responsibility Assignment Matrix Sheet Sub-assembly Work Breakdown Structure

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Integrated Model Management System (IMMS) Numbering

The IMMS assigns a unique number, the IMMS tag, to individual CATIA objects (see Figure 1.2.1). See part III section 2 for a full description of how IMMS is used. 1.2.1

The IMMS Tag within CATIA

The IMMS tag uniquely identifies all object types within the database. Within CATIA, there is a restriction of 70 characters that can be used in a tag. IMMS tags that are longer than that can be read using the Browser (see part III section 2) or using the www (see sections 2 and see part III section 1). For CATIA object types, certain information is put into IMMS using the Browser or TDBASE (see part III section 2) and the database assigns the tag. Some explanation of the IMMS tag elements is required to understand the CAD structures (see section 1.3).

Figure 1.2-1

Example of an IMMS Tag

This typical IMMS tag is normally written as follows: 16.0465.0000.3D.0001.W 1.2.1.1

Subject Index

Digits 1 and 2 of the tag describe the subject of the CATIA object. The subject index is taken from the second level WBS number (without decimals, see Appendix C); in the example, WBS 1.6 is the blanket system, which is shown as Ô16Õ. Any object can be filed in the database to lower levels (3rd, 4th etc.) of the WBS. This is not shown in the tag but is shown on the drawing and parts list title block (see part II section 2.4.3 and see part III section 2). 1.2.1.2

Sequential IMMS Number

Digits 3 through 6 are the unique sequential object numbers supplied by the database. In this example, the number is Ô0465Õ. N.B. These digits apply to ASs, DSs and models.

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1.2.1.3

Drawing Number

Digits 7 through 10 are used for drawings and parts lists that are contained within a model. Another way of looking at this is they are sequential sheet numbers in the model, in this example the number is Ô0000Õ. 1.2.1.4

Object Type

Digits 11 and 12 refer to the object type; there are five object types at this time. For the first three objects below, digits 7 through 10 are always Ô0000Õ. AS DS 3D

Assembly Set Design Set Model

Folder containing DS(s) at a lower level, AS and Drawings Folder containing DS(s) at a lower level and Models The CATIA file containing 3D and 2D Data

The next two objects types reside within a model. Therefore, they always take the model number (digits 3 through 6). Digits 7 through 10 will increment depending upon how many drawings or parts lists, reside in the model. As stated before they are sequential sheet numbers within the model. 2D PL

Drawing Parts List

2D Data within a Model 2D Data within a Model

When stating an IMMS tag, the minimum number of digits used must include the object type (e.g., 10.0001.0001.2D). This may be abbreviated to 10.1.1.2D by removing the leading zeros from each field (see also section 1.2.1.13). 1.2.1.5

Revision Number and Status

This includes the reference or formal revision number, the working revision number and status of Figure 1.2-1. Digits 13 through 17 refer to the revision number and status. These five digits should be treated together. Digits 13 through 16 refer to the revision number. Digit 17 refers to the status. Digits 13 and 14 are used for the status ÔRÕ or ÔFÕ. Digits 15 and 16 are used for the status ÔWÕ. Once an object has been at ÔRÕ or ÔFÕ status, digits 13 and 14 remain unchanged until the next time that status is used. See example in section 1.2.1.5.1. For a ÔPÕ revision of an approved object, digits 13 through 16 remain unchanged until the model is approved. See example in section 1.2.1.5.1. Digit 17 is the status. There are seven statuses.

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Symbol P C W R F M O X

Status Private Checked Working Reference Formal Modified Obsolete Cancelled

The following is an example of Change of Status procedure. A model starts life as Ô0000.PÕ. When the design is sufficiently mature, it is approved as working (W) status and moves through the following process. It is first checked and goes to status Ô0000.CÕ after checking it then moves to Ô0001.WÕ If a new revision is required, a new model is created Ô0001.PÕ. It is then checked as Ô0001.CÕ and approved as working Ô0002.WÕ. The previous revision 0001.W is saved as obsolete 0001.O. This same iteration process carries on until it is decided to increase its status to ÔRÕ. When the design maturity of a model reaches the stage where it is suitable to be released to the members of the Home Teams. The model is prepared for reference status. The model is checked against the configuration models to ensure the space envelope is not exceeded and the interfaces with adjacent components is correct. When approving as reference, it moves to Ô0100.RÕ. If further revisions are required the model moves back to Ô0100.PÕ. Then to Ô0100.CÕ, then to Ô0101.WÕ, then to Ô0200.RÕ, then to Ô0201.PÕ etc. as shown below. (The sequence table below ignores the fact that the previous approved revision is saved as obsolete for the history of the model) P C W P C W R P C W R P

Private Checked Working Private Checked Working Reference Private Checked Working Reference Private

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e.g. e.g. e.g. e.g. e.g. e.g. e.g. e.g. e.g. e.g. e.g. e.g.

0000.P 0000.C 0001.W 0001.P 0001.C 0002.W 0100.R 0100.P 0100.C 0101.W 0200.R 0201.P

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Request for Modification

Digits 18 through 20 are used only for a ÒRequest for ModificationÓ, otherwise it is left blank thus Ò---Ò. This field is in two parts. Character 18 signifies the site requesting the modification to a model that originates from a remote site (e.g. G for Garching, N for Naka). Digits 19 and 20 form the revision number for this modification. The ÒMÓ status keeps the same values of digits 13 to 16 as the previously released model (see part III section 2.10.4.6). 1.2.1.7

Site

Character 21 is the alphabetical character signifying the site where the object has been developed. These will be entered automatically by the database. The characters used are: G: Garching N: Naka 1.2.1.8

Baseline

This four character alphabetical field (characters 22 to 25) is the baseline of the machine for example, FEAT. 1.2.1.9

Date

The date format is the year, month and day of the object registration. The date is given directly by the database in the field digits 26 to 31. 1.2.1.10

Designer Initials

This three character alphabetical field (characters 32 to 34) are for the initials of the designer who made the CATIA object. The designerÕs initials are allocated automatically by the database. 1.2.1.11

Task OfficerÕs Initials

This three character alphabetical field (characters 35 to 37) is the initials of the task officer for the object when registered. This information is assigned automatically from the responsibility assignment matrix (RAM) within the database when the designer chooses the WBS level of the object (see Appendix C). 1.2.1.12

Title of Document

This field is a description of the object. In the Oracle database, it can have up to 70 characters plus the 47 characters already being used, thus giving a total of 117 characters maximum. Within CATIA, only the first 23 characters of the title are shown in the model filename, as CATIA is limited to a total of 70 characters. Note. To indicate whether a CATIA model contains only 3D space geometry or only drawings, the following text is added at the start of the model title. 3D These two characters signify the model contains only 3D space geometry. 2D These two characters signify the model contains only drawings. Note. The Ò2DÓ identifier is only added to the model title it is not shown in the drawing title. When a model contains both 3D space geometry and drawings, no additional text is added to the model title.

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Abbreviated IMMS Tag

Though the number at first looks complex, after use it becomes easier. The zeros before a number are part of the tag structure and do not need to be included when quoting the number. The number can be simplified as for example, 12.0045.0002.2D.0001W would read Ôdrawing number 12-45-sheet 2-issue 1-workingÕ. This is clearly a drawing of the poloidal field coils system (see subject index Ò12Ó in Appendix C).

1.3

CAD Structure

There are four structures within IMMS: 1) Drawing Search 2) Drawing Structure 3) M+D Model and Drawing Structure 4) Configuration Model Structure Structures 3) and 4) can be viewed only as 3D models within CATIA (at this time) using TDOVLY (see part III section 2). Even so, the structure and its numbers can be followed using the www (see part III section 1). It is useful to use both systems when moving through the structures. The reason for both structures 3) and 4) to exist is as follows. Every component is designed as a self-consistent entity for costing, procurement and manufacture. This is defined in structure 3) M+D Model and Drawing Structure. At the same time every component exists in a definitive set of xyz co-ordinates and interacts with every other component in the same space or volume that needs to be checked for consistency, ensuring they are interference free. The structures all use AS and DS. 1.3.1

Drawing Search

This is a search engine to allow the user to locate any drawing whose number is known and also to download a pdf file from this drawing (see section 2). 1.3.2

Drawing Structure

This is a structure to allow the user to locate any reference drawing within the ITER design. The structure is based on a folder system that spreads out from the WBS top two levels down to the component level. Figure 1.3-1 shows a simplified drawing structure AS containing only drawings (see section 2). The example uses a three-legged table, as this is easier to explain the concept.

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Figure 1.3-1

1.3.3

Simplified Drawing Structure AS

M+D Model and Drawing Structure

This is a structure of each model component connected to any of its relevant drawings within its own WBS system (i.e. TF coil system). This structure enables the user to find the relationship between drawings and the model(s), from which they were derived for procurement, manufacture or costing purposes. This ensures data integrity. The same models exist in both the model and drawing structure and the configuration model structure. To help identify the folders for the models and drawings structure the title starts with ÔM+DÕ. Figure 1.3-2 shows a simplified model and drawing structure AS, containing DSs (with 3D models inside), and the drawings associated with them (see part III section 1). The example uses a three-legged table, as this is easier to explain the concept.

Figure 1.3-2

Simplified Model and Drawing Structure AS

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Configuration Model Structure

The configuration model structure is used to locate any model that is used for the configuration control of the tokamak and the site. All our models use the same reference axis system, which means the different components and systems are always in their correct relative position (see part III section 1). The configuration model structure is split into two parts as follows : 1)

The Configuration Tokamak Models which are the models defining the components inside the Bio-shield of the tokamak hall.

2)

The Configuration Site Models which are the models defining the remainder of the site.

1.3.4.1

Configuration Tokamak Models

These configuration models define the Tokamak. They are used to control the space envelope and interfaces of the component for configuration control purposes. In the case of the major tokamak components, e.g. the VV, a series of simplified solid models have been created. These configuration models contain a solid that defines the space envelope and interfaces with adjacent components. A designer working on a component is responsible for ensuring he does not exceed the space envelope of his component or change the interface to an adjacent component without receiving approval from the DIU. To help identify the AS and DS that belong to the configuration tokamak models structure the title starts with ÔConfigÕ. Figure 1.3-3 shows a typical configuration tokamak model structure AS containing DS. These DS contain the models for that particular component.

Figure 1.3-3

Typical Configuration Tokamak Model AS

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Configuration Site Models

This is a topological structure to locate any model, which makes up the ITER site. The available power of a standard CAD workstation, make it impossible to show all the 3D models that make up the complete site at the same time. At the top level, the site is split into 24 zones or boxes. Each zone relates to a building or site area. Every model exists in a definitive x, y and z co-ordinate range within one or more zones. Global interference checks can be carried out on these zones for configuration control purposes. Therefore, the complete assembly may have multiple models making up any one assembly. To help identify folders for the configuration models the title starts with ÔZoneÕ. Figure 1.3-4 shows a simplified configuration site model structure AS containing DS. These DS contain the models for that particular zone. The example uses a three-legged table, as this is easier to explain the concept.

Figure 1.3-4

1.3.5

Typical Configuration Site Model AS

Revised Models in a DS

Changes within a DS are notified to the user through the database when the DS is next read. When a model in a DS has been revised the DS will show the ÔOÕ obsolete revision and the designer will be asked if he requires the new revision.

1.4

Component and Plant Identification Scheme

The components shown in PFDs and P&IDs are identified using the component and plant identification scheme described in part II section 1.1.

1.5

Management Structure

The Head of the JWS Design Office (DOM) is the JCT responsible officer for the CAD Design Office at each JWS. He is also referred to as the Design Office Head.

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The CAD Administrator is the person responsible for the CAD systems and environment at each JWS. The JWS CAD Structure Administrator (CSA) is the JCT responsible officer for managing the AS and DS structure within the IMMS database. The ITER Database Manager is the JCT responsible officer for managing the IMMS database for the ITER Project. The Design Integration Unit (DIU) is the JCT group that has the task to control the overall configuration of the ITER machine in both the engineering and physics areas.

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Drawings on the www

The CAD drawings are available on the www. The addresses are: Garching Naka

www.iter.org/db http://iterdbs.naka.jaeri.go.jp:8000/agt/plsql/access1.home1

The Oracle database user name and password must be entered to access the ITER Database homepage. Please check with the IMMS Database Administrator, should problems with access be encountered.

2.1

Types of Structures

Two types of structures have been created within the IMMS database for viewing drawings. These structures are available to both the JWS and the Home Teams. They are: 1) 2) 2.1.1

Drawing search Drawing structure Drawing Search

The drawing search is a search engine that allows the user to query the IMMS database for any approved drawing. If the drawing number is known this can be entered. Alternatively, the database can be searched by completing the appropriate field. A small preview of the selected drawing is displayed in a window and if desired a pdf format file of the drawing can be downloaded (see section 2.3). 2.1.2

Drawing Structure

The drawing structure allows the user to locate any reference drawing within the ITER design. The structure is based on a folder system that spreads out from the WBS top two levels down to the component level (see section 2.4).

2.2

ITER Database Home Page

After logging into the web site as a member of the Home Team, you will be directed to the ÒITER Database Home PageÓ (see Figure 2.2-1). This web page contains a selectable list of ÒIMMS FunctionsÓ. When the web site is accessed by the JCT at the JWS this homepage has additional functionality (see part III - section 1and Figure 1.2-1).

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Figure 2.2-1

2.2.1

ITER Database Home Page

Representations within the Web Browser

In front of each line is an icon that depicts the object type, there are two types for the drawings on the www : Assembly Set (AS):

This is a folder that is only read by the Browser

Drawing:

This is a 2D object within a CATIA model and does not contain 3D information

At the top level, there is a set of folders AS with a title. This title is taken from the WBS. In front of this title are the first two levels of the WBS (see Appendix C), for example: 10.Tokamak Basic Machine 1.0 is the top level WBS for the tokamak basic machine and is represented as 10. When we get down to the level of drawings a typical tag would be 62.0354.0001.2D.0100.R.TRITIUM VACUUM & SERVICES BUILDING PLAN VIEW 62 354 1 2D 1 R Followed by

2.3

WBS levels 1&2 Models number Drawing number within the model Indicates this is a drawing Issue number Status the model title

The Drawing Search

From the ÒITER Database Home PageÓ (see Figure 2.2-1), select ÒDrawing SearchÓ and the ÒITER Database of DrawingsÓ page is shown (see Figure 2.3-1).

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Using the Drawing Search

In the upper portion of this web page is the search engine (see Figure 2.3-1). Clicking on the WBS button allows the user to either search the whole database or a selected WBS. If the drawing number or part of the title is known that can be entered into the appropriate field. The search can be out for either, the last two weeks, last 30 days or all dates. The search can also be made for ÔALL DRAWINGSÕ or only those that are included in the ÔDRAWING STRUCTURE ONLYÕ (see section 2.4). The search button when pressed will execute the search. The search result will list the drawings in a scrollable list in the lower portion of the page. In the upper right hand portion of this page is a small preview window showing current drawing selected. To the right of this window are up and down buttons to scroll through the list of drawings. 2.3.2

Downloading the drawing

Between these buttons is a PDF button. If this button is pressed, a pdf file is downloaded to your computer. Depending on your web browser preference setting, you can either view the file using ÒAcrobat ReaderÓ or the internal ÒPDFViewerÓ. By default, the first drawing is always displayed in the preview window. The current drawing number and title is displayed to the left of the preview. In the list of drawings, the current drawing is indicated by a highlighted icon. The .pdf file is formatted to print at A3 size. Figure 2.3-2 shows an example of a pdf drawing.

Figure 2.3-1

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Figure 2.3-2

2.4

PDF Drawing

The Drawing Structure

From the ITER IMMS home page (see Figure 2.2-1), select ÒDrawing StructureÓ and the ÒITER Drawing StructureÓ page is shown (see Figure 2.4-1). In the upper portion of the page is the structure navigation (see section 2.4.1). In the lower portion of the page is the list of children of the drawing structure. At the bottom of the page is a list of the parents of the drawing structure. If one of these is selected, you will return to the higher level in the structure. 2.4.1

Structure Navigation

At the top of the web page (see Figure 2.4-1) is the structure navigation ÔShow LevelsÕ button. This allows you to move down on various levels of a structure 1,2,3 or ALL. If you select the Ôshow levelsÕ button, the possibilities will be shown. Select the level then press the refresh button to actuate the request. your computer down. Start with show levels Ô1Õ until you know how many levels there are, then you can increase the levels to show more of the structure.

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Figure 2.4-1 2.4.2

Drawing Structure

Using the Drawing Structure

In our example if the AS Ò53-NEUTRAL BEAM SYSTEMÓ is selected (see Figure 2.4-1) then this AS will be opened. If we now select show Ô2Õ levels and press the refresh button we will see the resultant list (see Figure 2.4-2).

Figure 2.4-2

Neutral Beam System Drawing Structure

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Viewing the Drawing

In our example, (see Figure 2.4-2). If you select the drawing number 53.0001.0002 from the AS Ò53-NB CELL INTEGRATIONÓ this is displayed in the preview window. You can now press the PDF button to the left of the preview window and you will be shown the drawing (see Figure 2.4-3).

Figure 2.4-3

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PDF Drawing

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