Assessing experimental uncertainty : supplement to AIAA S-071A-1999 /

This AIAA Guide supplements the methodology for assessment of experimental uncertainties and techniques for evaluating experimental error sources provided in AIAA Standard S-071A-1999, "Assessment of Experimental Uncertainty with Application to Wind Tunnel Testing." This document provides...

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Bibliographic Details
Corporate Author:	American Institute of Aeronautics and Astronautics
Format:	Book
Language:	English
Published:	Reston, VA : American Institute of Aeronautics and Astronautics, ©2003.
Subjects:	Wind tunnels. Airplanes > Models > Testing > Standards. Uncertainty (Information theory) Souffleries aérodynamiques. Incertitude (Théorie de l'information)
Online Access:	Table of contents

Table of Contents:

Machine derived contents note: Contents
CONTENTS iii
Foreword v
Dedication vi
Part I Basic Topics 1
1 Introduction 1
2 Uncertainty Methodology and Application 2
2.1 Methodology Primer 2
2.1.1 Single Test 4
2.1.2 Multiple Tests 4
2.1.3 Relative Sensitivity Factors 5
2.2 Application Primer 5
2.2.1 Experiment Definition 5
2.2.2 Uncertainties of the Experimental Results 6
2.2.2.1 Multiple Tests 6
2.2.2.2 Single Test 9
3 General Uncertainty Analysis Example-Evaluating Measurement Methods 11
3.1 Introduction 11
3.2 Mach Number Equations 11
3.3 Uncertainty Analysis 12
3.3.1 Partial Derivative Terms 13
3.3.2 Transducer Uncertainty 14
3.3.3 Mach Number Uncertainty 14
3.3.4 Relative Sensitivity Factors 16
4 General Uncertainty Analysis Example-Evaluating Data Reduction Equations 18
4.1 Turbine Efficiency Equations 19
4.2 Procedure 19
4.3 Results 20
4.3.1 Overall Uncertainty 20
4.3.2 Umf 20
4.3.3 Upc 21
4.3.4 Summary 22
5 Systematic Uncertainties and Correlation 31
5.1 Systematic Uncertainties 31
5.2 Correlated Systematic Uncertainties 33
5.2.1 Bath Uniformity 34
5.2.2 Standard Uncertainty 35
5.3 Correlated Systematic Uncertainties Example 35
Part II Advanced Topics 39
6 Random Uncertainties and Correlation 39
6.1 Random Uncertainties 39
6.2 Correlated Random Uncertainty Example 39
6.2.1 Background 39
6.2.2 Calibration Approach and Results 40
6.2.3 Uncertainty Analysis 41
6.3 Discharge Coefficient and Mass Flow Rate Equations 45
7 Regression Uncertainty 48
7.1 Categories of Regression Uncertainty 48
7.1.1 Uncertainty in Coefficients 49
7.1.2 Uncertainty in Y from Regression Model 49
7.1.3 (Xi, Yi) Variables are Functions 50
7.2 Linear Regression Uncertainty 50
7.2.1 General Approach 50
7.2.2 Reporting Regression Uncertainties 52
7.2.3 Differential Pressure Transducer Calibration Example 53
7.2.4 X and Y as Functional Relations 55
7.2.5 1st Order Regressions 57
7.2.5.1 Uncertainty in Coefficients 57
7.2.5.2 Classical Regression Random Uncertainty 59
7.2.5.3 Lift Slope and Lift Coefficient Example 60
8 Automated Uncertainty Analysis for Production Experiments 65
8.1 Introduction 65
8.2 Error Propagation 65
8.3 Estimation of Input Uncertainties 66
8.3.1 Systematic Uncertainty Estimation 67
8.3.2 Random Uncertainty Estimation 68
8.3.3 Specific Uncertainty Estimates 68
8.4 Results 69
8.5 Summary 69
9 Useful References 80.