Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Lucien A. Schmit"'
Autor:
Ye-Chen Lai, Lucien A. Schmit
Publikováno v:
International Journal for Numerical Methods in Engineering. 37:943-964
An efficient method for structural optimization is presented. Instead of classical direct decomposition methods, Preconditioned Conjugate Gradient (PCG) methods, in conjunction with two proposed starting-vector generation schemes, are used to solve t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0c9bd4ef3a4d70f024543a45f202bcb
https://doi.org/10.1002/nme.1620370605
https://doi.org/10.1002/nme.1620370605
Autor:
Lucien A. Schmit, Abdon E. Sepulveda
Publikováno v:
AIAA Journal. 31:180-188
A global optimization strategy for structural synthesis based on approximation concepts is presented. The methodology involves the solution of a sequence of highly accurate approximate problems using a global optimization algorithm. The global optimi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a0a2d2458563c9b8d3afd3ae7808d0b
https://doi.org/10.2514/3.11335
https://doi.org/10.2514/3.11335
Autor:
Lucien A. Schmit, I. M. Jin
Publikováno v:
AIAA Journal. 30:1892-1900
A method is presented to integrate the design space of structural/control system optimization problems in the case of linear state feedback control. Conventional structural sizing variables and elements of the feedback gain matrix are both treated as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39394dda2863cfc53f4d86ecac99c4f8
https://doi.org/10.2514/3.11152
https://doi.org/10.2514/3.11152
Exploratory design studies of actively controlled wings using integrated multidisciplinary synthesis
Publikováno v:
AIAA Journal. 30:1171-1179
Analysis and synthesis techniques used in a newly developed, multidisciplinary, control augmented, structural wing optimization capability are reviewed. Structural, aerodynamic, and control system mathematical models that are suitable for the prelimi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dee7153e48ef67ad8d740ea2af71eccc
https://doi.org/10.2514/3.11047
https://doi.org/10.2514/3.11047
Publikováno v:
AIAA Journal. 30:171-179
Here is studied structure-control systems that can be modeled as an assemblage of beams and nonstructural mass elements augmented by a noncollocated direct output feedback control system. Beam cross-sectional dimensions, nonstructural masses and rota
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e9a4289d5ebd63f674e2937fcbea94a
https://doi.org/10.2514/3.10897
https://doi.org/10.2514/3.10897
Autor:
Abdon E. Sepulveda, Lucien A. Schmit
Publikováno v:
International Journal for Numerical Methods in Engineering. 32:1165-1187
A control-augmented structural synthesis methodology is presented in which actuator and sensor placement is treated in terms of (0,1) variables. Structural member sizes and control variables are treated simultaneously as design variables. A multiobje
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff092f187d1ee4d4fbe9c36095e5c29e
https://doi.org/10.1002/nme.1620320602
https://doi.org/10.1002/nme.1620320602
Autor:
Lucien A. Schmit, H. L. Thomas
Publikováno v:
AIAA Journal. 29:619-626
Dynamic stability constraints are included in a computer program that simultaneously synthesizes a structure and its control system. Two measures of stability, the real part of the system complex eigenvalues and the damping ratio, are examined. The p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::473ec4bcd59a3a83e17891c19e6a002c
https://doi.org/10.2514/3.10630
https://doi.org/10.2514/3.10630
Autor:
R. A. Manning, Lucien A. Schmit
Publikováno v:
AIAA Journal. 28:883-891
An integrated approach to the optimum design of control augmented structural systems is presented in which structural variables and control variables are changed simultaneously during the design process. Constraints are imposed on peak transient dyna
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07180514335a8cd98b139f55161563e7
https://doi.org/10.2514/3.25134
https://doi.org/10.2514/3.25134
Publikováno v:
33rd Structures, Structural Dynamics and Materials Conference.
A methodology for structural/control synthesis is presented in which the optimal location of active members is treated in terms of (0,1) variables. Structural member sizes, control gains, and (0,1) placement variables are treated simultaneously as de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fd50995f0c355547fc3df6a83ec3c22
https://doi.org/10.2514/6.1992-2557
https://doi.org/10.2514/6.1992-2557
Autor:
I. M. Jin, Lucien A. Schmit
Publikováno v:
Aerospace Design Conference.
A method is presented to integrate the design space for structural/control system optimization problems in the case of linear state feedback control. To make the truly simultaneous optimization of structural/control systems tractable, without increas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5fc2cd2f683183a5889d3193e44bdeb
https://doi.org/10.2514/6.1992-1241
https://doi.org/10.2514/6.1992-1241