Zobrazeno 1 - 10 of 36 pro vyhledávání: '"Chan-gi Pak"'
1
Finite Element Model Tuning Using Analytical Sensitivity Values
Autor: Chan-gi Pak
Publikováno v: Journal of Aircraft. :1-13
This paper presents an efficient approach for tuning finite element models to match the measured ground vibration test and proof test data. Frequencies, mode shapes, total weight, location of the center of gravity, and static deformation computed fro
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8ebab6fc32c1296bac9e78426e9968f2
https://doi.org/10.2514/1.c037178
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2
Linear and Geometrically Nonlinear Structural Shape Sensing from Strain Data
Autor: Chan-Gi Pak
Publikováno v: AIAA Journal. 61:907-922
An aircraft’s shape must be measured during flight to implement active shape controls such as active trim shape, divergence, and sonic boom controls. A basis function method for linear as well as geometrically nonlinear structural shape sensing is
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4361e217056209560707e2ec93d94197
https://doi.org/10.2514/1.j062165
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5
Multiple Shaker Placement for Ground Vibration Test of X-59 Aircraft using Topology Optimization
Autor: Chan-gi Pak
Publikováno v: AIAA Scitech 2020 Forum.
These slides and the companion paper describe a exciter placement technique using topology optimization.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a756e61d3aed90a9a20e71f899f1c4e0
https://doi.org/10.2514/6.2020-1901
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6
Jig-Shape Optimization of Low-Boom Supersonic Aircraft
Autor: Chan-Gi Pak
Publikováno v: Journal of Aircraft. 55:2154-2161
A simple approach for optimizing the jig-shape is proposed in this study. This simple approach is based on an unconstrained optimization problem and applied to a low-boom supersonic aircraft. In this study, the jig-shape optimization is performed usi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f1fd01d12af33b26771b2a8b2ca4c745
https://doi.org/10.2514/1.c034851
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7
Unsteady Aerodynamic Force Sensing from Strain Data
Autor: Chan-Gi Pak
Publikováno v: Journal of Aircraft. 54:1476-1485
A simple approach for computing unsteady aerodynamic forces from simulated measured strain data is proposed in this study. First, the deflection and slope of the structure are computed from the unsteady strain. Velocities and accelerations of the str
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::99da984d385521590a9c3b341909f899
https://doi.org/10.2514/1.c034140
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10
Creating a Test-Validated Finite-Element Model of the X-56A Aircraft Structure
Autor: Chan-Gi Pak, Samson Truong
Publikováno v: Journal of Aircraft. 52:1644-1667
Small modeling errors in a finite-element model will eventually induce errors in the structural flexibility and mass, thus propagating into unpredictable errors in the unsteady aerodynamics and the control law design. One of the primary objectives of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b52a493963f6a7f97f5a7edde309b896
https://doi.org/10.2514/1.c033043
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