A Summary Of Numerous Strain Gage Load Calibrations On Aircraft Wings And Tails In A Technological Format Nasa Tm 4804 Oct 20 1997
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A Summary Of Numerous Strain Gage Load Calibrations On Aircraft Wings And Tails In A Technological Format Nasa Tm 4804 Oct 20 1997
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Author :
language : en
Publisher:
Release Date : 1998
A Summary Of Numerous Strain Gage Load Calibrations On Aircraft Wings And Tails In A Technological Format Nasa Tm 4804 Oct 20 1997 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
A Summary Of Numerous Strain Gage Load Calibrations On Aircraft Wings And Tails In A Technological Format
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-17
A Summary Of Numerous Strain Gage Load Calibrations On Aircraft Wings And Tails In A Technological Format written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-17 with categories.
Fifteen aircraft structures that were calibrated for flight loads using strain gages are examined. The primary purpose of this paper is to document important examples of load calibrations on airplanes during the past four decades. The emphasis is placed on studying the physical procedures of calibrating strain-gaged structures and all the supporting analyses and computational techniques that have been used. The results and experiences obtained from actual data from 14 structures (on 13 airplanes and 1 laboratory test structure) are presented. This group of structures includes fins, tails, and wings with a wide variety of aspect ratios. Straight- wing, swept-wing, and delta-wing configurations are studied. Some of the structures have skin-dominant construction; others are spar-dominant. Anisotropic materials, heat shields, corrugated components, nonorthogonal primary structures, and truss-type structures are particular characteristics that are included. Jenkins, Jerald M. and DeAngelis, V. Michael Armstrong Flight Research Center ANISOTROPY; AERODYNAMIC LOADS; AIRCRAFT STRUCTURES; ASPECT RATIO; LOADS (FORCES); SWEPT WINGS; STRAIN GAGES; AERODYNAMIC CONFIGURATIONS; DELTA WINGS; FINS; TRUSSES...
A Summary Of Numerous Strain Gage Load Calibrations On Aircraft Wings And Tails In A Technological Format
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Author :
language : en
Publisher:
Release Date : 1997
A Summary Of Numerous Strain Gage Load Calibrations On Aircraft Wings And Tails In A Technological Format written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.
A Summary Of Numerous Strain Gage Load Calibrations On Aircraft Wings And Tails In A Technology Format
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Author : Jerald M. Jenkins
language : en
Publisher:
Release Date : 1997
A Summary Of Numerous Strain Gage Load Calibrations On Aircraft Wings And Tails In A Technology Format written by Jerald M. Jenkins and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Aerodynamic load categories.
Strain Gage Loads Calibration Testing Of The Active Aeroelastic Wing F A 18 Aircraft
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-06-20
Strain Gage Loads Calibration Testing Of The Active Aeroelastic Wing F A 18 Aircraft written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-20 with categories.
This report describes strain-gage calibration loading through the application of known loads of the Active Aeroelastic Wing F/A-18 airplane. The primary goal of this test is to produce a database suitable for deriving load equations for left and right wing root and fold shear; bending moment; torque; and all eight wing control-surface hinge moments. A secondary goal is to produce a database of wing deflections measured by string potentiometers and the onboard flight deflection measurement system. Another goal is to produce strain-gage data through both the laboratory data acquisition system and the onboard aircraft data system as a check of the aircraft system. Thirty-two hydraulic jacks have applied loads through whiffletrees to 104 tension-compression load pads bonded to the lower wing surfaces. The load pads covered approximately 60 percent of the lower wing surface. A series of 72 load cases has been performed, including single-point, double-point, and distributed load cases. Applied loads have reached 70 percent of the flight limit load. Maximum wingtip deflection has reached nearly 16 in. Lokos, William A. and Olney, Candida D. and Chen, Tony and Crawford, Natalie D. and Stauf, Rick and Reichenbach, Eric Y. and Bessette, Denis (Technical Monitor) Armstrong Flight Research Center NASA/TM-2002-210726, NAS 1.15:210726, H-2490
Calibration Of Strain Gage Installations In Aircraft Structures For The Measurement Of Flight Loads
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Author : T. H. Skopinski
language : en
Publisher:
Release Date : 1953
Calibration Of Strain Gage Installations In Aircraft Structures For The Measurement Of Flight Loads written by T. H. Skopinski and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1953 with Aerodynamic load categories.
A general method has been developed for calibrating strain-gage installations in aircraft structures, which permits the measurement in flight of the shear of lift, the bending moment, and the torque or pitching moment on the principle lifting or control surfaces. Although the stress in structural members may not be a simple function of the three loads of interest, a straightforward procedure is given for numerically combining the outputs of several bridges in such a way that the loads may be obtained. Extensions of the basic procedure by means of electrical combination of the strain-gage bridges are described which permit compromises between strain-gage installation time, availability of recording instruments, the data reduction time. The basic principles of strain-gage calibration procedures are illustrated by reference to the data for two aircraft structures of typical construction, one a straight and the other a swept horizontal stabilizer.
Calibration Of Strain Gage Installations In Aircraft Structures For The Measurement Of Flight Loads
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Author : T.H. Skopinski
language : en
Publisher:
Release Date : 1952
Calibration Of Strain Gage Installations In Aircraft Structures For The Measurement Of Flight Loads written by T.H. Skopinski and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1952 with categories.
Experiments To Study Strain Gage Load Calibrations On A Wing Structure At Elevated Temperatures
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Author : Richard C. Monaghan
language : en
Publisher:
Release Date : 1973
Experiments To Study Strain Gage Load Calibrations On A Wing Structure At Elevated Temperatures written by Richard C. Monaghan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Aerodynamic heating categories.
Laboratory experiments were performed to study changes in strain-gage bridge load calibrations on a wing structure heated to temperatures of 200 F, 400 F, and 600 F. Data were also obtained to define the experimental repeatability of strain-gage bridge outputs. Experiments were conducted to establish the validity of the superposition of bridge outputs due to thermal and mechanical loads during a heating simulation of Mach 3 flight. The strain-gage bridge outputs due to load cycle at each of the above temperature levels were very repeatable. A number of bridge calibrations were found to change significantly as a function of temperature. The sum of strain-gage bridge outputs due to individually applied thermal and mechanical loads compared well with that due to combined or superimposed loads. The validity of superposition was, therefore, established.
A Study Of The Effect Of Radical Load Distributions On Calibrated Strain Gage Load Equations
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-08-09
A Study Of The Effect Of Radical Load Distributions On Calibrated Strain Gage Load Equations written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-09 with categories.
For several decades, calibrated strain gages have been used to measure loads on airplanes. The accuracy of the equations used to relate the strain gage measurements to the applied loads has been based primarily on the results of the load calibration. An approach is presented for studying the effect of widely varying load distributions on strain gage load equations. The computational procedure provides a link between the load calibration and the load to be measured in flight. A matrix approach to equation selection is presented, which is based on equation standard error, load distribution, and influence coefficient plots of the strain gage equations, and is applied to a complex, delta-wing structure. Jenkins, J. M. and Kuhl, A. E. Armstrong Flight Research Center NASA-TM-56047, H-984 RTOP 505-02-23...
Evaluation Of A Strain Gage Load Calibration On A Low Aspect Ratio Wing Structure At Elevated Temperature
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Author : Lawrence F. Reardon
language : en
Publisher:
Release Date : 1989
Evaluation Of A Strain Gage Load Calibration On A Low Aspect Ratio Wing Structure At Elevated Temperature written by Lawrence F. Reardon and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Airframes categories.