IEST RP-DTE032 2-2009 PYROSHOCK TESTING TECHNIQUES.pdf
《IEST RP-DTE032 2-2009 PYROSHOCK TESTING TECHNIQUES.pdf》由会员分享,可在线阅读,更多相关《IEST RP-DTE032 2-2009 PYROSHOCK TESTING TECHNIQUES.pdf(36页珍藏版)》请在麦多课文档分享上搜索。
1、 Institute of Environmental Sciences and Technology Design, Test, and Evaluation Division IEST-RP-DTE032.2 Recommended Practice 032.2 Pyroshock Testing Techniques Arlington Place One 2340 S. Arlington Heights Road, Suite 100 Arlington Heights, IL 60005-4516 Phone: (847) 981-0100 Fax: (847) 981-4130
2、E-mail: iestiest.org Web: www.iest.org 2 IEST 2009 All rights reserved Institute of Environmental Sciences and Technology IEST-RP-DTE032.2 This Recommended Practice is published by the Institute of Environmental Sciences and Technology (IEST) to ad-vance the technical and engineering sciences. Use o
3、f this document is entirely voluntary, and determination of its appli-cability and suitability for any particular use is solely the responsibility of the user. Use of this Recommended Practice does not imply any warranty or endorsement by IEST. This Recommended Practice was prepared by and is under
4、the jurisdiction of Working Group 032 of the IEST Design, Test, and Evaluation Division. Copyright 2009 by the Institute of Environmental Sciences and Technology First printing, October 2009 ISBN 978-0-9841330-2-4 PROPOSAL FOR IMPROVEMENT: The Working Groups of the Institute of Environmental Science
5、s and Tech-nology are continually working on improvements to their Recommended Practices and Reference Documents. Suggestions from users of these documents are welcome. If you have a suggestion regarding this document, please use the online Proposal for Improvement form found on the IEST website at
6、www.iest.org. Institute of Environmental Sciences and Technology Arlington Place One 2340 S. Arlington Heights Road, Suite 100 Arlington Heights, IL 60005-4516 Phone: (847) 981-0100 Fax: (847) 981-4130 E-mail: iestiest.org Web: www.iest.org IEST-RP-DTE032.2 Institute of Environmental Sciences and Te
7、chnology IEST 2009 All rights reserved 3 Pyroshock Testing Techniques IEST-RP-DTE032.2 CONTENTS SECTION 1 SCOPE 5 2 REFERENCES 5 3 TERMS AND DEFINITIONS 6 4 BACKGROUND AND OVERVIEW . 7 5 PYROTECHNICALLY EXCITED NEAR-FIELD SIMULATION 21 6 MECHANICALLY EXCITED MID-FIELD AND FAR-FIELD SIMULATION . 23 7
8、 STANDARD SHOCK-TESTING MACHINES WITH CLASSICAL PULSE TESTS (NOT RECOMMENDED) 31 8 MECHANICALLY EXCITED NEAR-FIELD SIMULATIONS . 31 FIGURE 1 TYPICAL ACCELERATION-TIME HISTORY FOR A PYROSHOCK 7 2 ACCELERATION SRS AND TIME HISTORY FOR A NEAR-FIELD PYROSHOCK (DAMPING = 5%) 9 3 ACCELERATION SRS AND TIME
9、 HISTORY FOR A FAR-FIELD PYROSHOCK (DAMPING = 5%) 9 4 NEAR-FIELD PYROSHOCK DATA WITH ERRONEOUS ACCELEROMETER OFFSET . 11 5 NEAR-FIELD PYROSHOCK DATA CORRECTED WITH WAVELETS 13 6 NEAR-FIELD PYROSHOCK DATA REPEATABILITY FOR A PLATE (16 TESTS) 15 7 NEAR-FIELD PYROSHOCK DATA REPEATABILITY FOR A NASA STR
10、UCTURE (48 MEASUREMENTS: SIX LOCATIONS MEASURED FOR EIGHT TESTS) 16 8 NEAR-FIELD PYROSHOCK NOISE CHANNEL DATA 18 9 ORDNANCE-GENERATED PYROSHOCK SIMULATOR 21 10 SCALED TESTS USING REPRESENTATIVE STRUCTURE 22 11 BOUNDED IMPACT TEST METHOD IMPLEMENTED ON A STANDARD DROP TABLE 23 12 FULL-SCALE PYROSHOCK
11、 SIMULATION WITH RESONANT SIMULATOR. MEASUREMENTS AT COMPONENT LOCATIONS CONFIRM SIMULATION SUCCESS . 24 13 MIPS SIMULATOR . 25 14 ACCELERATION SRS AND TIME-HISTORY FROM A TUNED RESONANT FIXTURE (DAMPING = 5%) 26 15 RESONANT PLATE TEST METHOD (PLATE IS FREELY SUSPENDED) . 27 16 RESONANT BAR TEST MET
12、HOD (BAR IS FREELY SUSPENDED) 27 17 TUNABLE RESONANT BEAM TEST METHOD . 28 18 TRIAXIAL ACCELERATION MEASUREMENTS FOR THE UNIQUE RESONANT FIXTURE SURVEY WITH THREE-AXES RESPONSE . 29 4 IEST 2009 All rights reserved Institute of Environmental Sciences and Technology IEST-RP-DTE032.2 19 TRIAXIAL ACCELE
13、RATION SRS CALCULATIONS FOR THE UNIQUE RESONANT FIXTURE WITH THE ACTUAL TEST UNIT 30 20 KNEE FREQUENCY IN THE SRS FOR THE UNIQUE RESONANT FIXTURE WITH THE ACTUAL TEST UNIT 31 TABLE 1 COMPARISON OF PUBLISHED PYROSHOCK DEFINITIONS . 8 APPENDIX A BIBLIOGRAPHY . 32 IEST-RP-DTE032.2 Institute of Environm
14、ental Sciences and Technology IEST 2009 All rights reserved 5 Institute of Environmental Sciences and Technology Design, Test, and Evaluation Division Recommended Practice 032.2 Pyroshock Testing Techniques IEST-RP-DTE032.2 1 SCOPE This Recommended Practice (RP) provides an over-view of pyroshock te
15、sting concepts and compares pro-visions from other pyroshock documents. Much of this RP is devoted to acquisition and analysis of pyroshock data because proper time-history data acquisition and test specification development are common test indus-try problems. To avoid corrupted pyroshock data and r
16、esulting inaccurate pyroshock specifications, recom-mended practices for instrumentation and data acquisi-tion systems are given. If pyroshock testing equipment is used to simulate the detonation of a pyrotechnic device, a unique, custom design is usually required, with a few exceptions. There is no
17、 universal pyroshock testing technique or equipment that can handle all specifications and all dimensions for units under test, whether test units are individual components, subsystems, or complete sys-tems. This RP includes examples of different concepts and equipment configurations and notes any l
18、imita-tions. Several sections are devoted to the design and use of resonant fixtures for pyroshock simulations. Additionally, this RP contains an example of a three-dimensional pyroshock simulation with one impact to a resonant fixture that can provide a realistic simula-tion of pyroshock and preven
19、t mechanical failure caused by overtesting with single-axis sequential test procedures. CAUTION: Testing in accordance with this RP may involve hazardous materials, operations, and equip-ment. This RP does not purport to address all of the safety problems associated with its use. It is the re-sponsi
20、bility of the user to consult safety guidelines and establish appropriate safety practices, and to determine the applicability of regulatory limitations prior to use of this RP. 2 REFERENCES The following documents are incorporated into this RP to the extent specified herein. Users should apply the
21、most recent editions of the references. See Appendix A for informative references cited in this RP and addi-tional resources. IEST-RD-DTE012: Handbook for Dynamic Data Ac-quisition and Analysis. ISO 18431-4: Mechanical vibration and shockSignal processingPart 4: Shock-response spectrum analysis MIL-
22、STD-810: Environmental Engineering Consid-erations and Laboratory Tests, Method 517, Pyro-shock. NASA-STD-7003: Pyroshock Test Criteria. 2.2 Sources and Addresses IEST Institute of Environmental Sciences and Technology Arlington Place One 2340 S. Arlington Heights Road, Suite 100 Arlington Heights,
23、IL 60005-4516 Phone: (847) 981-0100 Fax (847) 981-4130 www.iest.org ISO In US, documents may be obtained from: IEST Arlington Place One 2340 S. Arlington Heights Road, Suite 100 Arlington Heights, IL 60005-4516 Phone: (847) 981-0100 Fax (847) 981-4130 www.iest.org Outside U.S.: Documents available f
24、rom representative ISO member organization 6 IEST 2009 All rights reserved Institute of Environmental Sciences and Technology IEST-RP-DTE032.2 US Military Standards Standardization Document Order Desk 700 Robbins Avenue Bldg. #4, Section D Philadelphia, PA 19111-5094, USA http:/dodssp.daps.dla.mil/
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- IESTRPDTE03222009PYROSHOCKTESTINGTECHNIQUESPDF
链接地址:http://www.mydoc123.com/p-784835.html