The techniques used to acquire, reduce, and analyze dynamic deformation measurements of an aeroelastic semispan wind tunnel model are presented. Single-camera, single-view video photogrammetry (also referred to as videogrammetric model deformation, or VMD) was used to determine dynamic aeroelastic deformation of the semispan 'Models for Aeroelastic Validation Research Involving Computation' (MAVRIC) model in the Transonic Dynamics Tunnel at the NASA Langley Research Center. Dynamic deformation was determined from optical retroreflective tape targets at five semispan locations located on the wing from the root to the tip. Digitized video images from a charge coupled device (CCD) camera were recorded and processed to automatically determine t...
An automated system to measure the change in wing twist and bending under aerodynamic load in a wind...
The aeroelastic response of a very flexible wing in steady and unsteady inflow conditions is measure...
Videometric measurements in wind tunnels can be very challenging due to the limited optical access, ...
Single-camera, single-view videogrammetry has been used for the first time to determine static aeroe...
The theory, methods, and applications of the videogrammetric model deformation (VMD) measurement tec...
A videogrammetric technique developed at NASA Langley Research Center has been used at five NASA fac...
Videogrammetry is a measurement technique well-suited to characterizing lightweight, flexible wings ...
The interest in adaptive devices for high-speed applications leads to the need for an accurate and r...
The purpose of this manual is to provide the user of the NASA VMD system, running the MDef software,...
Langley Research Center, was recently used to measure displacements and local surface angle changes ...
A photogrammetric closed circuit television system to measure model deformation at the National Tran...
Video Model Deformation (VMD) and Projection Moire Interferometry (PMI) were used to acquire wind tu...
This paper describes the video model deformation technique (VMD) used at five NASA facilities and th...
A stereophotographic method of determining the aeroelastic deformations of an airplane model under a...
An overview of recently completed programs in aeroelasticity and structural dynamics research at the...
An automated system to measure the change in wing twist and bending under aerodynamic load in a wind...
The aeroelastic response of a very flexible wing in steady and unsteady inflow conditions is measure...
Videometric measurements in wind tunnels can be very challenging due to the limited optical access, ...
Single-camera, single-view videogrammetry has been used for the first time to determine static aeroe...
The theory, methods, and applications of the videogrammetric model deformation (VMD) measurement tec...
A videogrammetric technique developed at NASA Langley Research Center has been used at five NASA fac...
Videogrammetry is a measurement technique well-suited to characterizing lightweight, flexible wings ...
The interest in adaptive devices for high-speed applications leads to the need for an accurate and r...
The purpose of this manual is to provide the user of the NASA VMD system, running the MDef software,...
Langley Research Center, was recently used to measure displacements and local surface angle changes ...
A photogrammetric closed circuit television system to measure model deformation at the National Tran...
Video Model Deformation (VMD) and Projection Moire Interferometry (PMI) were used to acquire wind tu...
This paper describes the video model deformation technique (VMD) used at five NASA facilities and th...
A stereophotographic method of determining the aeroelastic deformations of an airplane model under a...
An overview of recently completed programs in aeroelasticity and structural dynamics research at the...
An automated system to measure the change in wing twist and bending under aerodynamic load in a wind...
The aeroelastic response of a very flexible wing in steady and unsteady inflow conditions is measure...
Videometric measurements in wind tunnels can be very challenging due to the limited optical access, ...