Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Dana A. Gottfried"'
Publikováno v:
Journal of Propulsion and Power. 26:16-24
A mathematical model is developed to investigate the effects of aerodynamic damping on the maximum amplification factor of mistuned bladed disks. LINSUB, an inviscid linearized unsteady aerodynamic damping code, provides aerodynamic damping influence
Publikováno v:
Journal of Propulsion and Power. 25:642-652
This paper describes the development and application of turbomachinery aeromechanics arbitrary Lagrangian Eulerian 3-D, an arbitrary Lagrangian Eulerian finite-element-coupled fluid―structure interaction solver, to axial and radial flow turbomachin
Autor:
Sanford Fleeter, Dana A. Gottfried
Publikováno v:
Journal of Propulsion and Power. 21:327-334
Flow-induced vibration of turbomachine blade rows is a coupled fluid-structure problem. Thus, rather than separate fluid and structural models, a coupled interacting fluid-structures analysis is needed. This need is addressed by extending the finite
Autor:
Dana A. Gottfried, Sanford Fleeter
Publikováno v:
Journal of Propulsion and Power. 18:978-989
High-cycle fatigue (HCF) is a key issue for the advancement of gas-turbine performance and endurance. Models simulating the cyclic aerodynamic forces experienced by gas-turbine vanes are necessary to make quantitative predictions of HCF during design
Autor:
Sanford Fleeter, Dana A. Gottfried
Publikováno v:
Journal of Propulsion and Power. 18:472-480
To predict the unsteady aerodynamic response of centrifugal compressor impeller blades to the potential field generated by the downstream vaned diffuser, a small perturbation model is developed that considers the number of impeller blades and diffuse
Publikováno v:
44th AIAA Aerospace Sciences Meeting and Exhibit.
High Cycle Fatigue (HCF) is a key issue in the development and endurance of gas turbine engines that results from the flow-induced vibratory response of turbomachine blading to unsteady aerodynamic excitations. This paper describes the development an
Publikováno v:
38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
Autor:
Dana A. Gottfried, Sanford Fleeter
Publikováno v:
38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
Geometric detuning effects are considered in this study of flow induced vibrations of the I nlet Guide Vane (IGV) row of the Purdue Transonic Compressor. The TAM -ALE3D fluid -structure interaction finite element code is used for the analysis, with t
Autor:
Sanford Fleeter, Dana A. Gottfried
Publikováno v:
38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.
High cycle fatigue (HCF) i s a key issue for the advancement of gas turbine performance and endurance. TAM -ALE3D, a model that simulates cyclic aerodynamic forces and internal blading stresses, is evaluated at off -design conditions where aerodynami
Autor:
Dana A. Gottfried, Sanford Fleeter
Publikováno v:
35th Joint Propulsion Conference and Exhibit.
Flow induced vibration of turbomachine blade rows is a coupled fluid-structure problem. Thus, rather than separate fluid and structural models, a coupled interacting fluid-structures analysis is needed. This research addresses this need by extending