Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Kari Appa"'
Autor:
Kari Appa
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 90:693-717
The conceptual design of an aircraft system requires a number of analysis cycles involving the study of various configurations for which aerodynamic and structural properties are not well defined. The aeroelastic stability and structural strength con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6688247c504ad753d1225c977fbaa573
https://doi.org/10.1016/0045-7825(91)90180-e
https://doi.org/10.1016/0045-7825(91)90180-e
Publikováno v:
SPIE Proceedings.
A technique of deforming a flexible wing to hold the airplane in a steady pull-up maneuver with required load factor at high dynamic pressures is examined. Rather than using an elevator system for pull-up, symmetric elastic twist and camber is determ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71c6c04bbf57e1df1d804ef9926c72ff
https://doi.org/10.1117/12.436485
https://doi.org/10.1117/12.436485
Publikováno v:
SPIE Proceedings.
The concept of an adaptive aircraft wing, i.e., whose shape parameters such as camber, span-wise twist, and thickness can be varied to optimize the wing shape for various flight conditions, has been extensively studied by numerous researchers. While
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c147778270974f77f165f50eef183b87
https://doi.org/10.1117/12.274656
https://doi.org/10.1117/12.274656
Publikováno v:
SPIE Proceedings.
The use of smart materials technologies can provide unique capabilities in improving aircraft aerodynamic performance. Northrop Grumman built and tested a 16% scale semi-span wind tunnel model of the F/A -18 E/F for the on-going DARPA/WL Smart Materi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cf7795e7aeb8e1b9b98a6a782b046a7
https://doi.org/10.1117/12.274694
https://doi.org/10.1117/12.274694
Autor:
Jayanth Kudva, Kari Appa, Christopher Martin, A. Jardine, George Sendeckyj, Terry Harris, Anna-Marie McGowan, Renee Lake
Publikováno v:
38th Structures, Structural Dynamics, and Materials Conference.
The concept of an adaptive aircraft wing, i.e., whose shape parameters such as camber, span-wise twist, and thickness can be varied to optimize the wing shape for various flight conditions, has been extensively studied by numerous researchers [1-8].
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04abdab1089996ffdc49e2ed4a59660b
https://doi.org/10.2514/6.1997-1198
https://doi.org/10.2514/6.1997-1198
Publikováno v:
SPIE Proceedings.
On high performance military aircraft, small changes in both wing twist and wing camber have the potential to provide substantial payoffs in terms of additional lift and enhanced maneuverability. To achieve the required wing shape, actuators made of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::054144b85f25715896cd7e89fdeaabab
https://doi.org/10.1117/12.239077
https://doi.org/10.1117/12.239077
Publikováno v:
SPIE Proceedings.
While the concept of an adaptive aircraft wing, i.e., a wing whose shape parameters such as camber, wing twist, and thickness can be varied to optimize the wing shape for various flight conditions, has been extensively studied, the complexity and wei
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de841a3a3b4068d3f09e1b16efd9a66c
https://doi.org/10.1117/12.239124
https://doi.org/10.1117/12.239124
Publikováno v:
SPIE Proceedings.
New developments in smart structures and materials have made it possible to revisit earlier work in adaptive and flexible wing technology, and remove some of the limitations for technology transition to next-generation aircraft. Research performed by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bdf9210c2ae710419f788c09bae061c
https://doi.org/10.1117/12.209347
https://doi.org/10.1117/12.209347
Autor:
Kari Appa
Publikováno v:
AIAA Journal. 28:765-766
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9caebce24649b923dbebadcccb0c068c
https://doi.org/10.2514/3.48873
https://doi.org/10.2514/3.48873
Autor:
Kari Appa, Michael J. C. Smith
Publikováno v:
Journal of Aircraft. 26:854-862
This paper evaluates the capability of the constant pressure panel method (CPM) code to predict unsteady aerodynamic pressures, lift and moment distributions, and generalized forces for general wing-body configurations in supersonic flow. Stability d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::251ae1c19b465ec4f7d5fa9c152cd1f3
https://doi.org/10.2514/3.45851
https://doi.org/10.2514/3.45851