1、 MSFC-STD-3528 National Aeronautics and REVISION D Space Administration EFFECTIVE DATE: September 8, 2011 George C. Marshall Space Flight Center Marshall Space Flight Center, Alabama 35812 EV32 MSFC TECHNICAL STANDARD COMPUTER-AIDED DESIGN (CAD) STANDARD Approved for Public Release; Distribution Unl
2、imited Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MSFC Technical Standard EV32 Title: Computer-Aided Document No.: MSFC-STD-3528 Revision: Revision D Design (CAD) Standard Effective Date: September 8, 2011 Page 2 of 97 CHECK THE MASTER LIST VERI
3、FY THAT THIS IS THE CORRECT VERSION BEFORE USE DOCUMENT HISTORY LOG Status (Baseline/ Revision/ Canceled) Document Revision Effective Date Description Baseline - September 30, 2008 Initial release of document. Revision A January 14, 2009 General throughout: Changed “As-Manufactured” to “As-Designed”
4、. Section 3.1: Changed MKS for Meter Kilogram Second to mmKS for millimeter Kilogram Second Section 3.2: Inserted definition of Configuration Item and renumbered accordingly. Updated definition of End Item. Section 4.1.5.1 b: Changed Meter Kilogram Second (MKS) to millimeter Kilogram Second (mmKS).
5、Section 4.1.6.1: Added “inches for English start parts and 0.00127 millimeters for metric start parts” to the end of the first sentence. Section 8.6.8 was: “A WT Part that is to be used outside of its product context is typically an “End Item” and will have a special WT Part object assigned. These e
6、nd items are normally “Major Assemblies” such as an Aft Skirt or an Instrument Unit.” Section 8.10.1: Inserted Latest Design as a Configuration and updated the definition for Latest, Latest Workgroup Approved, and Latest Released. Section 8.13.2: Updated role names. Replaced Specification Documents
7、with Skeleton Files in 8.13.2.2. Section 8.13.3: Updated all Access by Lifecycle States information. Section 8.14: Updated Workgroup Approval information. Section 8.17: Updated requirements for Viewables. Section 12.10: Updated requirements regarding Named Views and Cross-Section Datums. Designers C
8、hecklist: Updated C-21, C-22, A-15, and A-16 in accordance with Section 12.10 changes and made them N/A to Checkers. Deleted A-14. Revision B May 19, 2009 Section 2 - Added Authority Documents to the title, made Authority Documents para. 2.1 and renumbered the remaining para.; Added (Draft) after Cx
9、P 72142 title. Assigned titles to Desktop Instructions ED-CAD-DI-025 and ED-CAD-DI-026. Section 3.2 - Added definitions for Common Parts and Standard Parts. Section 4.1.3.4 - Replaced “REV-“ with “*“ in the template file name, with “*“ representing the latest revision. Section 4.2.4 - Added referenc
10、e to ED-CAD-DI-026. Section 5.4.3 - Added -BULK1, -BULK2, etc. as a companion file type. Section 6.5.4.1 - Modified the Description, Part Number and Part Type parameter requirements. Section 6.8.1 - Added exceptions to the requirements for Bulk Items, and a reference to ED-CAD-DI-025. Section 7.2.2
11、- Added exceptions to 7.2.2.1. Added 7.2.2.3 to define the exceptions. Section 7.3, 8.1.4, 12.1.2.5, 13.6, Appendix B6, Designers Checklist A-13 - Changed Standard Parts Library to Common Parts Library. Section 7.6.2 - Deleted. Section 8.6.12, 8.12.2, 8.13.1.3 - Deleted. Section 8.9.2 - Added “for a
12、ssemblies or non-latest revisions of parts“ to Item c. Section 12.1.2.1 Para. c. and 12.7.4 - Added “ promoting the model to the “Design“ state and prior to submitting the model for WGA or“ before “release“. Section 12.1.2.5 - Added “parts in flat or formed states“ to the list for use of family tabl
13、es. Added Sections 12.7.2.1 and 12.7.2.2 regarding feature and edge references. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MSFC Technical Standard EV32 Title: Computer-Aided Document No.: MSFC-STD-3528 Revision: Revision D Design (CAD) Standard
14、Effective Date: September 8, 2011 Page 3 of 97 CHECK THE MASTER LIST VERIFY THAT THIS IS THE CORRECT VERSION BEFORE USE Section 12.13.5 - Added requirements regarding rounds and chamfer children. Changed Appendix B reference to 12.13.6. Appendix B - Corrected paragraph reference for B1, B6, B14. and
15、 B16. Deleted ModelCHECK errors and warning list from B2. Deleted B9, B12, and B13. Deleted “lifecycle“ two places and the last bullet from B10. Appendix C - Deleted the Optimum Workstation Settings. Appendix D - Added C-25 to check for round and chamfer children. Added reference to ED-CAD-DI-025 to
16、 A-7. Appendix E - Assigned titles to Desktop Instructions ED-CAD-DI-025 and ED-CAD-DI-026. Revision C February 08, 2010 Changed the Office of Primary Responsibility from EV83 to EV32. Section 2.1 - Corrected the document number and title. Section 2.3 - Inserted ED-OWI-005 and renumbered; changed th
17、e title of Desktop Instruction ED-CAD-DI-014 to Cable Routing; added six new Desktop Instructions at the end of the list. Section 3.2 - Updated the definitions of Effectivity, Hpgl Format, and WT Part. Section 4.1.3.4 - Corrected the template names and clarified the meaning of the “*”. Section 4.3.3
18、.1 - Added an exception and the appropriate reference within the document regarding composite views. Section 5.4.3 - Added -PATL as a companion file extension for partial assemblies. Section 5.5 - Added requirements from NASA-STD-(I)-0007 for the file name. Section 6.5.4.2 - Changed “FABRICATION” to
19、 “NEXTASSY” and reordered the listing in the tables to match the order the designer fills them out. Section 6.7.2 - Updated the requirements for the OML rep and added requirements for a Graphics rep. Section 6.7.3.1.d Clarified that fasteners are included in SIMPLE rep. Section 7.2.2 - Added note re
20、quirements for Altered Item, Source Control, Vendor Item Control, and Envelope drawings. Section 8.9, 8.10 - Updated the requirements for Managed Baselines. Section 8.10, 8.13, 8.14 - Changed “design data” to CAD and “WT Parts”. Section 8.10.1.5 - Added reference to ED-CAD-DI-030. Section 8.13.3.1 -
21、 Updated Access to include CAD-WT Part In Work-Read Only. Section 8.15.1.1 - Added reference to ED-OWI-005. Section 12.16.3 - Change DI title to Cable Routing. Section 12.22 - Added additional requirements for Composite Parts. Section 12.23, 13.13 - Added new requirement for Layouts. Section 13.12 -
22、 Added new requirements for Large File Management and Partial Assemblies. Section 14.3.8 - Added the exception of adding a new dash number to existing released design data and re-formatted the section to use bullets. Section 14.3.9 - Modified the requirement to reflect that every drawing has an EPL.
23、 Section 14.3.11 - Added new section to add requirements for Drawings of Composites. Section 14.4.2 - Added details for drawing notes for other types of drawings added in Section 7.2.2. Section 14.4.5 - Changed “shall” to “should” regarding use of Standard Notes. Section 14.6.2 - Changed the viewabl
24、e format from hpgl to pdf. Appendix D - Added reference to Paragraph 14.3.8 to C-13. Added C-26 through C-29. Modified D-7 and D-14 to be consistent with new requirements. Added D-17 through D-19. Appendix E - Changed the title of Desktop Instruction ED-CAD-DI-014 to Cable Routing; added two new Des
25、ktop Instructions at the end of the list. Revision D 9/8/2011 Revision D released; document authorized through MPDMS. Section 1.1.4 Added “and parts list” after drawing. Section 1.1.9 Corrected the web address for Pro/ENGINEER Tips and Techniques. Section 2.2 Deleted CxP 72142 from the list of Requi
26、red Documents. Section 2.3, Appendix E Added Desktop Instructions ED-CAD-DI-031, -032, -033, -034, -035, -036. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MSFC Technical Standard EV32 Title: Computer-Aided Document No.: MSFC-STD-3528 Revision: Re
27、vision D Design (CAD) Standard Effective Date: September 8, 2011 Page 4 of 97 CHECK THE MASTER LIST VERIFY THAT THIS IS THE CORRECT VERSION BEFORE USE Section 3.1 Deleted CLV, DAC, IE, PIM from the Acronym list. Section 3.2 Updated definitions of Baseline, Inseparable Assembly, Mono-detail Drawing,
28、and added definitions for Bottom-Up Design Methodology, DDMS Baseline, Design Layout Drawing, Modular Product Architecture, Pro/ENGINEER Layout, and Top-Down Design Methodology. Deleted Hpgl from the list. Section 4.1.5.1 Changed dashes in Start Part file names to underbars. Section 4.2.4 Added refe
29、rence to ED-CAD-DI-026 for acceptable exceptions to ModelCHECK errors. Section 5.1.2.1 Table 2 Added file extension information to Number field. Section 5.2.2 Replaced “Part Number” with Dash Number”. Section 5.2.2.7 Replaced “Part Number” with Dash Number”; replaced MFSC-STD-555 with ED-OWI-005; de
30、leted item d. Section 5.3.1.1 Table 3 Updated information for Filename and Number. Section 5.3.1.2 Inserted “base” after “Final”. Section 5.3.1.3 Replaced final CAD file name requirement with requirement for who assigns the dash number. Section 5.3.1.4 Added -101, etc., for dash numbers for insepara
31、ble assemblies. Section 5.4.1 Changed “Companion Files.” to “Companion CAD Files.”. Section 5.4.3 Updated descriptions for ENV, LAY, and REL companion files. Section 5.6 Updated requirements to change from WGA Promotion Notice to WGA CR; deleted the option of the drawing number for multiple assembli
32、es being in the name. Section 5.7.2 Added. Section 6.5.4.2 Changed the drawing parameter name from “NEXTASSY” to “NEXTHIGHER”. Section 6.7.2.1.d Added “shaded” in front of GRAPHICS in (1) and (2). Section 6.7.3.1.a Added item (3). Section 6.7.3.1.e Updated (1) and (2). Section 7.2.2.1 Added “schemat
33、ics, etc. to the list of exceptions. Section 7.2.2.5 Changed “Approved” to “Suggested” in item 4. Section 7.2.2.6 Added “schematics” after “Envelope”. Section 7.2.2.7 Added. Section 7.3.5 Deleted. Section 8.2.3 Added reference to ED-CAD-DI-033 and ED-CAD-DI-035. Section 8.4.1 Added reference to ED-C
34、AD-DI-032. Section 8.8.1.3 Deleted “mono-detail”. Section 8.9, 8.10, Appendix B Change “Managed Baseline” to “DDMS Baseline”. Section 8.11.4 Added. Section 8.13.3.6 Inserted “Rework” state and renumbered “Released” state. Section 8.14.1 Change “promotion” to “CR”. Section 8.15.1.1 Added reference to
35、 ED-CAD-DI-036. Section 8.17.2 Deleted references to solid geometry and managed baseline. Section 9 Changed section from “Top Down Design Methodology” to “Design Methodology”. Section 10 Changed section from “SPECIFIC GUIDELINES FOR TDD INTEGRAL METHODOLOGY AND CONTROL STRUCTURE” to “BOTTOM-UP DESIG
36、N METHODOLOGY”. Section 11 Rewrote the requirements regarding Modular Product Architecture and moved old information to ED-CAD-DI-034. Section 12.1.2.1.c Updated wording to apply to Copy Geometry features Section 12.1.2.1.d Added. Section 12.4 Corrected the numbering of the sub-sections. Section 12.
37、7.3 Added “something logical and meaningful to the designer” as the naming criteria. Section 12.7.4 Added to delete dependencies prior to release. Section 12.8.2 Added “or missing details” to the end of the requirement. Section 12.18 Updated requirements for UDFs. Section 12.22 Added “or surface” to
38、 requirements for boundary curves. Section 12.23 Added requirements for Pro/ENGINEER layouts. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MSFC Technical Standard EV32 Title: Computer-Aided Document No.: MSFC-STD-3528 Revision: Revision D Design (
39、CAD) Standard Effective Date: September 8, 2011 Page 5 of 97 CHECK THE MASTER LIST VERIFY THAT THIS IS THE CORRECT VERSION BEFORE USE Section 12.24 Added requirements for Envelope Models. Section 13.3.2 Added requirement regarding Design State and WGA, and to delete prior to release. Section 13.4.1
40、Replaced “etc.” with “or any other feature that removes material.” Section 13.14 Added requirements for Inseparable Assemblies. Section 14.2.2 Added exception for drawings of 2D geometry and Kit Drawings. Section 14.3.6 Added “common” between “insert symbols.” Section 14.3.8 Clarified that mono-deta
41、il applies to assembly drawings and deleted the last bullet. Added reference to Section 13.14. Section 14.3.13 Added requirements for Kit Drawings. Section 14.3.14 Added requirements for Design Layout Drawings. Section 14.3.15 Added requirements for Envelope/Vendor Item Control/Source Control Drawin
42、gs. Section 14.4.1 Added exception for 2D drawings and Kit drawings. Appendix B1 Changed “increased” to “adjusted” in the first sentence and deleted the last sentence. Appendix B3, B15 Deleted. Appendix B14 Changed “hpgl” to pdf”. Appendix D Updated C-4, C-6, C-15, C-16, C-25, C-26, C-27, C-28, A-1,
43、 A-2, A-11, D-2, D-3. Appendix D Deleted C-20. Appendix D Added C-30, A-19, W-6. Appendix E Added six Desktop Instructions to the end of the list. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MSFC Technical Standard EV32 Title: Computer-Aided Docu
44、ment No.: MSFC-STD-3528 Revision: Revision D Design (CAD) Standard Effective Date: September 8, 2011 Page 6 of 97 CHECK THE MASTER LIST VERIFY THAT THIS IS THE CORRECT VERSION BEFORE USE This page left blank intentionally.Provided by IHSNot for ResaleNo reproduction or networking permitted without l
45、icense from IHS-,-,-MSFC Technical Standard EV32 Title: Computer-Aided Document No.: MSFC-STD-3528 Revision: Revision D Design (CAD) Standard Effective Date: September 8, 2011 Page 7 of 97 CHECK THE MASTER LIST VERIFY THAT THIS IS THE CORRECT VERSION BEFORE USE TABLE OF CONTENTS PARAGRAPH PAGE 1. SC
46、OPE/PURPOSE 12 1.1 Application 12 2. AUTHORITY AND APPLICABLE DOCUMENTS 13 2.1 Authority Documents. 13 2.2 Required Documents . 13 2.3 Reference Documents 13 3. ACRONYMS/DEFINITIONS . 14 3.1 Acronyms 14 3.2 Definitions . 15 4. GENERAL GUIDELINES 18 4.1 Default Settings . 18 4.1.1 Start Part 18 4.1.2
47、 Start Assembly 18 4.1.3 Start Drawing/Drawing Template 19 4.1.4 Dimensional and Angular Tolerances 19 4.1.5 Systems of Units 20 4.1.6 Part Accuracy 20 4.2 Model and Drawing Integrity 21 4.3 General Drafting Requirements 21 5. NAMING CONVENTION 22 5.1 Initial CAD Identification 22 5.1.1 Initial Pro/
48、ENGINEER Design Software CAD Name, Common Name, and Filename 22 5.1.2 Initial DDMS CAD Number, Name, and Filename 23 5.2 Initial CAD File Name . 24 5.3 Final CAD Identification for “As-Designed” Model 25 5.3.1 Final DDMS and Pro/ENGINEER Design Software CAD Identification . 25 5.4 Companion CAD File Identification 27 5.5 CAD File Name for Vendor Parts 28 5.6 Numbering and Naming of DDMS Baseline and DDMS Change Requests (CRs) for WGA and Other Release 29 5.6.1 DDMS Baseline Numbering and Naming 29 5.6.2 DDMS CR Numbering and Naming for WGA . 29 5.6.3 DDMS CR Numbering an
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