AIAA R-091-2003 Calibration and Use of Internal Strain- Gage Balances with Application to Wind Tunnel Testing《校准和应用风洞测试的内部应变计结余使用》.pdf
《AIAA R-091-2003 Calibration and Use of Internal Strain- Gage Balances with Application to Wind Tunnel Testing《校准和应用风洞测试的内部应变计结余使用》.pdf》由会员分享,可在线阅读,更多相关《AIAA R-091-2003 Calibration and Use of Internal Strain- Gage Balances with Application to Wind Tunnel Testing《校准和应用风洞测试的内部应变计结余使用》.pdf(74页珍藏版)》请在麦多课文档分享上搜索。
1、AIAA R-091-2003 Calibration and Use of Internal Strain- Gage Balances with Application to Wind Tunnel Testing AIAA R-091-2003 Recommended Practice Calibration and Use of Internal Strain- Gage Balances with Application to Wind Tunnel Testing Sponsored by American Institute of Aeronautics and Astronau
2、tics Abstract This document provides a recommended method for calibration of internal strain-gage balances used in wind tunnel testing. The practices include terminology, axis system definition, balance calibration methods, matrix, and documentation. Use of this document will facilitate the exchange
3、 of information among users, suppliers, and other interested parties. AIAA R-091-2003 Library of Congress Cataloging-in-Publication Data Recommended practice : calibration and use of internal strain gage balances with application to wind tunnel testing i sponsored by American Institute of Aeronautic
4、s and Astronautics. p. cm. “R-091-2003.“ Includes bibliographical references and index. ISBN 1-56347-645-2 (Hardcopy) - ISBN 1-56347-646-0 (Electronic) 1 . Wind tunnels-Standards. 2. Strain gages-Calibration-Standards. I. American Institute of Aeronautics and Astronautics. TL567.W5R43 2003 629.13452
5、-dc21 200301 4347 Published by American Institute of Aeronautics and Astronautics 1801 Alexander Bell Drive, Suite 500, Reston, VA 20191 Copyright O 2003 American Institute of Aeronautics and Astronautics All rights resewed. No part of this publication may be reproduced in any form, in an electronic
6、 retrieval system or otherwise, without prior written permission of the publisher. Printed in the United States of America. ii AIAA R-091-2003 Contents Foreword v Dedication vi 1 1 . 1 1.2 1.3 2 2.1 2.2 2.3 2.4 3 3.1 3.2 3.3 3.4 3.5 3.6 4 4.1 4.2 4.3 4.4 4.5 4.6 4.7 5 Introduction 1 Scope 1 Purpose
7、. 1 Cautions and Limitations . 1 Concepts . 2 Forces and Moments 2 Balance Axis System and Moment Reference Center 3 Balance Types . 4 Designated Balance Load Capacity . 6 Calibration 7 Calibration Process . 7 Matrix Determination . 16 Load Calculation Method 18 Transfer of the Calibration Result to
8、 the Test Environment 21 Emerging Technologies 22 Three-Component Balance Example . 25 Calibration Documentation . 40 Matrix File 40 Calibration Report . 45 Calibration Load Envelope 48 Residual Load Error 51 Calibration Statistics 52 Facility Uncertainty 56 Sample Calibration Report 57 Concluding R
9、emarks . 61 . Annex A: Glossary 62 Annex B: References 64 Tables Table 1 . Component Load and Bridge Output Order and Terminology . 4 Table 2 . Bridge Output for Force, Moment, and Direct-Read Balances . 6 Table 3 . Measured Bridge Outputs for the Determination of the Zero Load Outputs 26 AIAA R-091
10、-2003 Table 4 . Calibration Loads and Bridge Outputs 26 Table 6 . Linear Matrix 29 Table 7 . Modified Bridge Outputs for Tare Load Calculation 30 Table 8 . Iteration 1 Tare Loads and Changes . 30 Table 9 . Calibration Loads Adjusted for Iteration 1 Tare Loads . 31 Table 1 O . Iteration 1 Interim Mat
11、rix 32 Table 11 . Iteration 2 Tare Loads and Changes . 33 Table 12 . Calibration Loads Adjusted for Iteration 2 Tare Loads . 33 Table 13 . Iteration 2 Interim Matrix 35 35 Table 15 . Calibration Loads adjusted for Iteration 3 Tare Loads 36 Table 16 . Iteration 3 Interim Matrix 37 Table 17 . Iteratio
12、n 4 Tare Loads and Changes . 38 Table 18 . Calibration Loads Adjusted for the Final Tare Loads 38 Table 19 . Final Calibration Matrix 40 Table 20 . Contents of the Calibration Matrix File 41 Table 21 . Sample Calibration Matrix File . 42 45 Table 23 . Balance Details for a Calibration Report . 46 Ta
13、ble 24 . Calibration Details for a Calibration Report . 47 Table 25 . Data Reduction Description for a Calibration Report 48 Table 26 . Back-calculated Data and Residuals 51 Table 27 . Calibration Statistical Data . 53 Table 14 . Iteration 3 Tare Loads and Changes Table 22 . General Information for
14、a Calibration Report Figures Figure 1 . Balance Axis System, Forces, and Moments 3 Figure 2 . Matrix Determination Process 17 Figure 3 . Sample Load Calculation 20 Figure 4 . Applied Loading as Function of Database Point Number . 50 Figure 5 . Normalized Calibration Loading in Two-component Load Env
15、elope Format . 50 Figure 6 . Load Envelope Sample for a Three Component Force Balance 50 Figure 7 . Residual Load Error and Applied Loading as Function of Load Point Number 54 Figure 8 . Normalized Residual Load Error and Normalized Applied Loading as Function of Load Point Number 55 Figure 9 . Hist
16、ogram of Normalized Residual Load Error with Theoretical Normal Distribution Superimposed 56 iv AIAA R-091-2003 Foreword Internal balances are the mainstay instrument used in nearly every wind tunnel test to measure the aerodynamic loads on the test article. For the most part, each facility designs,
17、 fabricates, calibrates, and utilizes internal balances in near seclusion. However, with decreasing budgets and customers using multiple facilities, the time had arrived for collaboration on the design, use, calibration, and uncertainty estimation for internal strain-gage balances to begin. The conc
18、ept of forming a working group for internal balances originated from discussions among individuals from the Arnold Engineering Development Center, the National Aeronautics and Space Administration facility at Langley Research Center, and the Boeing Commercial Airplane Group. The discussions also rev
19、ealed that there was considerable skepticism concerning the willingness to share information and the ability to reach consensus among the individuals working in the area of internal balances. However, despite the skepticism, it was decided that the working group concept should go forward with the pu
20、rpose of sharing information and developing recommended practices. The Ground Testing Technical Committee (GTTC) of the American Institute of Aeronautics and Astronautics (AIAA) was asked to sponsor a working group on internal balance technology. Upon approval, the Internal Balance Technology Workin
21、g Group (IBTWG) was formed under the auspices of the GTTC. The objective of the IBTWG was to share information on, and experiences with, all facets of internal balances and to develop recommended practices that would allow the facilities to work together to advance the state of the art. The working
22、groups membership consisted primarily of individuals from organizations that calibrate and use internal balances. One of the early issues that had to be addressed was the working groups membership. Invitations to the first meeting were made to individuals from facilities in the U.S. and Canada. Howe
23、ver, during the time of the first meeting, several European organizations expressed an interest in participating in the working group. After considerable debate, the initial invited members agreed that achieving consensus was going to be a difficult enough task among the current members and that exp
24、anding the membership might impede the groups progress, possibly to the point of being ineffective. The initial members agreed that the current group be limited to North American participation, but would support the development of a European working group if requested. Then, once recommended practic
- 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:
- AIAAR0912003CALIBRATIONANDUSEOFINTERNALSTRAINGAGEBALANCESWITHAPPLICATIONTOWINDTUNNELTESTING 校准 应用 风洞

链接地址:http://www.mydoc123.com/p-426696.html