REG JSC-STD-8080-2012 JSC Design and Procedural Standards - Engineering Directorate Revision DCN 1.pdf

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1、 JSC-STD-8080 October 2011 JSC Design and Procedural Standards Engineering Directorate October 2011 (This document supersedes JPR 8080.5 JSC Design and Procedural Standards, dated February, 2005.) Verify that this is the correct version before use. National Aeronautics and Space Administration Lyndo

2、n B. Johnson Space Center Houston, Texas Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-JSC-STD-8080 October 2011 Page ii Publication Record for JPR 8080.5 Document Revision Date Description of Change Originator Basic 2011_0901 Initial Release of Do

3、cument as a JSC Standard, Reference JTS CB CR# 3001 Danny Punch DCN 1 2012_06 G-10 - Title change for clarification, G-22 Title and content change, Reference JTS CB CR# 3002 Dale Huls Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-JSC-STD-8080 Octob

4、er 2011 ii PREFACE This document is a compilation of technical policies for human spacecraft as released through the Lyndon B. Johnson Space Center (JSC) Design and Procedural Standards activity. The Design and Procedural Standards are located in Section 2 of this manual and are identified according

5、 to the applicable discipline or category, with letter codes as follows: Letter Codes for Standards G General E Electrical F Fluids M/P Materials and Processes M/S Mechanical and Structural P Pyrotechnics Comments and questions regarding this document should be directed to the JSC Technical Standard

6、s Control Board (JTS) Executive Secretary or the JTS Chair, mail code EA4, Houston, Texas 77058. /s/ Danny Punch for _ Director, Engineering Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-JSC-STD-8080 October 2011 iii Table of Contents PREFACE II CH

7、ANGE RECORD FOR JSC-STD-8080.5 iv 1.0 INTRODUCTION 1-2 1.1 PURPOSE . 1-2 1.2 SCOPE 1-2 1.3 BACKGROUND . 1-2 1.4 DESIGN AND PROCEDURAL STANDARDS WORKING GROUP 1-2 1.5 DEVELOPMENT OF STANDARDS 1-3 1.6 CANCELLED STANDARDS 1-3 1.7 WAIVERS 1-4 1.8 JSC DESIGN AND PROCEDURAL STANDARDS NUMBERING 1-4 1.9 ISS

8、UE DATES AND REVISION HISTORY . 1-4 1.10 LISTING IN KEY WORD INDEX 1-4 1.11 LIST OF STANDARDS . 1-4 2.0 DESIGN AND PROCEDURAL STANDARDS 2-1 2.1 GENERAL. 2.1-1 2.2 ELECTRICAL 2.2-1 2.3 FLUIDS . 2.3-1 2.4 MATERIALS AND PROCESSES . 2.4-1 2.5 MECHANICS AND STRUCTURAL 2.5-1 2.6 PYROTECHNICS . 2.6-1 3.0 K

9、EY WORD INDEX 3-1 4.0 RELEASE HISTORY OF STANDARDS . 4-1 4.1 SECTION CAVEAT . 4-3 4.2 GENERAL BACKGROUND . 4-3 4.3 BULLETIN NUMBERING 4-3 4.4 ENGINEERING CRITERIA BULLETINS . 4-3 4.5 DESIGN STANDARDS AND PROCEDURAL STANDARDS BULLETINS . 4-3 4.6 CROSS REFERENCE- OLD: NEW STANDARD NUMBERS 4-3 APPENDIC

10、ES A. CUMULATIVE REVISION HISTORY OF DESIGN AND PROCEDURAL STANDARDS A-1 B. CANCELLED DESIGN AND PROCEDURAL STANDARDS .B-1 C. HISTORIC CHANGE LOG FOR JPR 8080.5 C-1 *THIS IS A COMPLETE LISTING, BY CATEGORY AND NUMBER, OF THE STANDARDS CONTAINED IN THIS MANUAL. Provided by IHSNot for ResaleNo reprodu

11、ction or networking permitted without license from IHS-,-,-JSC-STD-8080 October 2011 1-1 SECTION 1 INTRODUCTION Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-JSC-STD-8080 October 2011 1-2 1.0 INTRODUCTION 1.1 PURPOSE This document provides design a

12、nd procedural requirements appropriate for inclusion in specifications for any human spaceflight program, project, spacecraft, system, or end item. The term “spacecraft” as used in the standards includes launch vehicles, orbital vehicles, non-terrestrial surface vehicles, and modules. The standards

13、are developed and maintained as directed by Johnson Space Center (JSC) Policy Directive JPD 8080.2, JSC Design and Procedural Standards for Human Space Flight Equipment. 1.2 SCOPE The Design and Procedural Standards contained in this manual represent human spacecraft design and operational knowledge

14、 applicable to a wide range of spaceflight activities. These standards are imposed on JSC human spaceflight equipment through JPD 8080.2. Designers shall comply with all design standards applicable to their design effort. 1.3 BACKGROUND The Design and Procedural Standards activity was established to

15、 develop technical and procedural policies for human spaceflight programs. Originally published in 1964, the Standards manual has been revised periodically. Because of agency document management changes over the years, the letters in front of 8080.5 have changed many times over the years without aff

16、ecting the standards contained within the document. 1.4 JSC TECHNICAL STANDARDS CHANGE BOARD The JSC Technical Standards (JTS) Change Board was established by JPD 8080.2 and charters by EPC 2104.00, Charter of the JSC Technical Standards Control Board, EA-07-028 to perform and administer the technic

17、al standards activity at the Johnson Space Center. The JTS membership represents the various technical and operations disciplines involved in past and present human spaceflight activities at JSC. Each standard is assigned to the most knowledgeable and appropriate organization and the organization as

18、signs a Lead Engineer for ownership. 1.5 DEVELOPMENT OF STANDARDS Any JSC employee may propose a new JSC standard or a revision to an existing standard. Proposed new standards and revisions to existing standards will be submitted to the JTS. A Lead Engineer and Lead Organization will be identified f

19、or each new standard. Standards will be submitted on the appropriate JTS change form. The change form identifies a revision, a proposed cancellation, or the inclusion of a new standard. Supporting or background information should be enclosed with the change. 1.6 CANCELLED STANDARDS Standards may be

20、cancelled following the same process for new and revised standards. Cancelled standards are not deleted from this document so that the standard can be returned to active status. All cancelled standards are removed from the main body of this document and placed in Appendix B. The rationale for cancel

21、ing the standard is documented on the standard itself, as well as in the JTS configuration management records. 1.7 WAIVERS Standards may be waived by obtaining approval of the NASA Technical Authority and the Program/Customer Control Board (CCB) that controls the requirements specification for the p

22、roject or program. The waiver process is defined in other agency documentation. Waivers are not required for Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-JSC-STD-8080 October 2011 1-3 standards that are determined to be “not applicable.“ This appl

23、icability is coordinated with the Safety and Mission Assurance Directorate. 1.8 JSC DESIGN AND PROCEDURAL STANDARDS NUMBERING JSC Design and Procedural Standards are categorized into logical groupings and numbered consecutively, within their respective categories, as they are released, revised, or c

24、ancelled. The standards are listed in this manual in numerical order within their respective categories (see paragraph 1.11 below as well as the sections comprising Section 2). Standards appear in only one category and are not repeated, even if appropriate for another category. As an example, some e

25、lectrical standards are found in the general section. The user should be familiar with all standards. 1.9 ISSUE DATES AND REVISION HISTORY For updated standards, the information block at the top of each standard reads: “Effective as of”. For cancelled standards, the information block reads: “Cancell

26、ed”. To trace the revision history of each standard, please refer to Appendix A where original effective dates and revision dates are located for each standard. 1.10 LISTING IN KEY WORD INDEX Key words selected to aid in searching for relevant standards are presented in alphabetical order as a Key W

27、ord Index (see Section 3) with a listing of the standards applicable to each word. For each standard, the Statement of Standard provides the requirements. The fact that a standard may not be listed under a specific word or category does not relieve JSC organizational elements of the responsibility f

28、or applying the requirement. 1.11 LIST OF STANDARDS JSC Design and Procedural Standards are listed below in numerical order within their respective categories. The categories are General (G), Electrical (E), Fluids (F), Materials and Processes (M/P), Mechanical and Structural (M/S), and Pyrotechnics

29、 (P). Active standards are located in the Section 2. Cancelled standards are located in Appendix B Cancelled Standards. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-JSC-STD-8080 October 2011 1-4 2.1. GENERAL . 2.1-1 G-1 Equipment Accessibility for

30、 Maintenance 2.1-3 G-2 Separation of Redundant Systems 2.1-4 G-3 Electrical and Fluid Systems Checkout Provisions . 2.1-5 G-4 Protection From Debris - Electrical MATERIALS, MANUFACTURING, AND WORKMANSHIP OF HIGHEST QUALITY STANDARDS ARE ESSENTIAL TO ASTRONAUT SAFETY. IF YOU ARE ABLE TO SUPPLY THE DE

31、SIRED ITEM WITH A HIGHER QUALITY THAN THAT OF THE ITEMS SPECIFIED OR PROPOSED, YOU ARE REQUESTED TO BRING THIS FACT TO THE IMMEDIATE ATTENTION OF THE PURCHASER.“ Procurement Document Identification For Human Spaceflight Items Document No. JSC-STD-8080.5 Standard No. G-11 Page 2 of 2 Previous Revisio

32、n 04/01/1991 Current as of 08 March 2005: REMARKS Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-JSC-STD-8080 October 2011 2.1-14 Verify correct revision before use When certifying an item for a new application, use of qualification test data obtain

33、ed during a previous certification shall meet the following conditions prior to use: 1. There is no change in design and specifications from the original item certified including operating limits, weight, dimensions, materials, performance and tolerance, reliability, and quality. 2. The configuratio

34、n (part number and dash number) previously tested is identical to the configuration proposed for the new application. 3. Manufacturing/Fabrication methods and process have not changed and are certified 4. Previous environmental test conditions are greater than or equal to the environmental extremiti

35、es and exposure durations required for the new application. 5. Previous functional/performance test results are greater than or equal to the accuracy, input-output, sensitivity, and other performance/operational characteristics required for the new application. 6. The previous test configuration is

36、documented and is considered an adequate methodology/technology to provide test results for the new application. 7. Previous test equipment tolerances and data resolution are documented. 8. Inspection methods, inspection points, and acceptance test procedures are greater than or equal to the rigor o

37、f previous methodologies. 9. Previous operating environments, exposure duration, cycling, and usage are greater than or equal to the operations concept required for the new application. 10. Previous failures have been evaluated for impact to the validity of test and analysis data Continued next page

38、. G-12 Application Of Previous Qualification Test Data Document No. JSC-STD-8080.5 Standard No. G-12 Page 1 of 1 Previous Revision 04/01/1991 Current as of 08 March 2005 STATEMENT OF STANDARD Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-JSC-STD-80

39、80 October 2011 2.1-15 Verify correct revision before use Continued from previous page Flight Certification of any item involves evaluation of verification data to determine if customer requirements have been met. When some of that data is already available from a prior flight certification program,

40、 and the appropriate technical evaluation determines that the data can be used to support a new certification program, it is cost effective to use existing data instead of performing additional testing. Previous failures and waivers must be reconsidered or resubmitted for approval by the authorizing

41、 organization. Environmental testing typically refers to vibration, thermal, thermal vacuum, radiation, loads, and electromagnetics. Application Of Previous Qualification Test Data Document No. JSC-STD-8080.5 Standard No. G-12 Page 2 of 2 Previous Revision 04/01/1991 Current as of 08 March 2005 REMA

42、RKS Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-JSC-STD-8080 October 2011 2.1-16 Verify correct revision before use G-13 has been cancelled. See Appendix B for standard text and rationale for cancellation. G-13 Cancelled See Appendix B Provided b

43、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-JSC-STD-8080 October 2011 2.1-17 Verify correct revision before use STATEMENT OF STANDARD The status of flight equipment and nonflight equipment (equipment which is not suitable for use in flight but which could

44、be accidentally substituted for flight articles) shall be identified and classified as follows: CLASS I Equipment acceptable for flight use. Identification shall be in accordance with drawings and specifications. CLASS II Equipment acceptable for use in ground tests or training in a hazardous enviro

45、nment. The nameplate or a label adjacent to the nameplate shall be conspicuously marked “CLASS II, CONTROLLED EQUIPMENT“ with flight compatible material. CLASS III Equipment acceptable for nonhazardous training or display purposes. This equipment shall be conspicuously identified by red (or orange)

46、stripes alternating with a contrasting base color or painted solid red. Red paint no. 28913 as specified by Federal standard 595A is the preferred color. An alternative to the paint method of identification is a red (or orange) striped nameplate or label marked “CLASS III, NOT FOR FLIGHT“ applied to

47、 the equipment. The identification shall be visible when the equipment is installed. In addition, equipment not readily identifiable as nonflight equipment, as well as nonflight equipment hidden from view in a major module, shall have a red (or orange) serialized streamer attached to, or in the imme

48、diate vicinity of the installation. The streamer shall be of a size and material compatible with the environment under which it will be used. Streamers are to be traceable to the major module which identifies and controls the item. A record of nonflight equipment and, if appropriate, associated streamer serial numbers shall accompany each major module upon formal transfer (i.e., DD250/1149) from one organization to another. Appropriate instructions shall be printed on each streamer. Streamers shall b