Videogrammetric Model Deformation Measurement Technique
نویسندگان
چکیده
منابع مشابه
Videogrammetric Model Deformation Measurement Technique
The theory, methods, and applications of the videogrammetric model deformation (VMD) measurement technique used at NASA for wind tunnel testing are presented. The VMD technique, based on non-topographic photogrammetry, can determine static and dynamic aeroelastic deformation and attitude of a wind-tunnel model. Hardware of the system includes a video-rate CCD camera, a computer with an image ac...
متن کاملDevelopment of an intelligent videogrammetric wind tunnel measurement system
A videogrammetric technique developed at NASA Langley Research Center has been used at five NASA facilities at the Langley and Ames Research Centers for deformation measurements on a number of sting mounted and semispan models. These include high-speed research and transport models tested over a wide range of aerodynamic conditions including subsonic, transonic, and supersonic regimes. The tech...
متن کاملDisability: a model and measurement technique.
Current methods of ranking or scoring disability tend to be arbitrary. A new method is put forward on the hypothesis that disability progresses in regular, cumulative patterns. A model of disability is defined and tested with the use of Guttman scale analysis. Its validity is indicated on data from a survey in the community and from postsurgical patients, and some factors involved in scale vari...
متن کاملAeroplane Deformation Measurement
With industrial development, industrial products have become more refined and complex, resulting in increased necessity for manufacturers to come up with a robust method of measurement to check whether or not the products have been produced correctly to meet customers’ needs. As a result, significant attention has been drawn to industrial photogrammetry to satisfy such needs without contacting ...
متن کاملAIAA 2002-2794 Uncertainty of Videogrammetric Techniques used for Aerodynamic Testing
The uncertainty of videogrammetric techniques used for the measurement of static aeroelastic wind tunnel model deformation and wind tunnel model pitch angle is discussed. Sensitivity analyses and geometrical considerations of uncertainty are augmented by analyses of experimental data in which videogrammetric angle measurements were taken simultaneously with precision servo accelerometers correc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Aircraft
سال: 2001
ISSN: 0021-8669,1533-3868
DOI: 10.2514/2.2826