Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Joanne L. Walsh"'
Publikováno v:
AIAA Journal. 39:511-516
Adjoint sensitivity calculation of stress, buckling, and displacement constraints may be much less expensive than direct sensitivity calculation when the number of load cases is large. In general, it is more difficult to implement the adjoint method
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a00a3d898bac3c5600833553aa5e5d6
https://doi.org/10.2514/2.1336
https://doi.org/10.2514/2.1336
Publikováno v:
Journal of Aircraft. 30:906-910
This article describes the development and validation of an optimization procedure to systematically place tuning masses along a rotor blade span to minimize vibratory loads. The masses and their corresponding locations are the design variables that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21edd974ab22336eee7f945b0988183b
https://doi.org/10.2514/3.46433
https://doi.org/10.2514/3.46433
Publikováno v:
Mathematical and Computer Modelling. 18(3-4):53-72
This paper describes a fully integrated aerodynamic/dynamic optimization procedure for helicopter rotor blades. The procedure combines performance and dynamics analyses with a general purpose optimizer. The procedure minimizes a linear combination of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47f0bb50618dc932e6d6473d614b0ff9
Publikováno v:
Journal of Aircraft. 28:58-65
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d08e97ef036e9d90ddf3aad5d44c30f
https://doi.org/10.2514/3.45992
https://doi.org/10.2514/3.45992
Autor:
Aditi Chattopadhyay, Joanne L. Walsh
Publikováno v:
Structural Optimization. 2:11-22
A procedure for the minimum weight design of helicopter rotor blades with constraints on multiple coupled flap-lag natural frequencies, autorotational inertia, and centrifugal stress is presented. Optimum designs are obtained for blades with both rec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22305d86392b2c680cca1fbb1ca14428
https://doi.org/10.1007/bf01743516
https://doi.org/10.1007/bf01743516
Publikováno v:
9th AIAA/ISSMO Symposium on Multidisciplinary Analysis and Optimization.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0f4b5943bddd1b78b019ad35870f897
https://doi.org/10.2514/6.2002-5407
https://doi.org/10.2514/6.2002-5407
Publikováno v:
4th Symposium on Multidisciplinary Analysis and Optimization.
This paper describes the use of neural networks as a replacement for rotor analyses in a conventional aerodynamic performance optimization procedure. The optimization procedure minimizes an objective function, a linear combination of horsepower requi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be9ef3fb63ccd46b8ab5cb1c8ec335aa
https://doi.org/10.2514/6.1992-4837
https://doi.org/10.2514/6.1992-4837
Publikováno v:
33rd Structures, Structural Dynamics and Materials Conference.
The development and validation of an optimization procedure to systematically place tuning masses along a rotor blade span to minimize vibratory loads are described. The masses and their corresponding locations are the design variables that are manip
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5cffac55759bd8d5555217230dd1994
https://doi.org/10.2514/6.1992-2376
https://doi.org/10.2514/6.1992-2376
Autor:
Raphael T. Haftka, Joanne L. Walsh
Publikováno v:
32nd Structures, Structural Dynamics, and Materials Conference.
Integer-programming formulations for the design of symmetric and balanced laminated plates under biaxial compression are presented. Both maximization of buckling load for a given total thickness and the minimization of total thickness subject to a bu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d862c456786376668e1972a09656bf6d
https://doi.org/10.2514/6.1991-970
https://doi.org/10.2514/6.1991-970
Publikováno v:
31st Structures, Structural Dynamics and Materials Conference.
The next generation of large space structure (LSS) will undoubtedly be characterized by high flexibility and low inherent damping and will benefit from integrated controls-structures (C–S) optimization. New methods are required to optimize these LS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae2710ade1c52965256b5e8226301d76
https://doi.org/10.2514/6.1990-1058
https://doi.org/10.2514/6.1990-1058