Updating structural dynamic models with emphasis on the damping properties

AIAA Journal ◽  
1998 ◽  
Vol 36 ◽  
pp. 1094-1099
Author(s):  
Amar T. Chouaki ◽  
Pierre Ladeveze ◽  
Laurent Proslier
Keyword(s):  
Dynamic Models ◽  
Damping Properties ◽  
Structural Dynamic

Updating Structural Dynamic Models with Emphasis on the Damping Properties

AIAA Journal ◽  
10.2514/2.486 ◽  
1998 ◽  
Vol 36 (6) ◽  
pp. 1094-1099 ◽  
Author(s):  
Amar T. Chouaki ◽  
Pierre Ladeveze ◽  
Laurent Proslier
Keyword(s):  
Dynamic Models ◽  
Damping Properties ◽  
Structural Dynamic

Structural Dynamic Models of a Controlled Rectifier

2020 ◽  
Vol 6 (6) ◽  
pp. 31-38
Author(s):  
Gennady A. BELOV ◽  
Keyword(s):  
Dynamic Models ◽  
Structural Dynamic

Structural Dynamic Models and Spectroscopic Identification of Flavonoids

2014 ◽  
Vol 14 (2) ◽  
pp. 18-26
Author(s):  
Mikhail Davydovich Elkin ◽  
◽  
Alexey Nickolaevich Pankratov ◽  
Alfia Rafailevna Gaisina ◽  
◽  
...  
Keyword(s):  
Dynamic Models ◽  
Structural Dynamic ◽  
Spectroscopic Identification

Forecasting week-to-week television ratings using reduced-form and structural dynamic models

2021 ◽  
Vol 37 (1) ◽  
pp. 302-321
Author(s):  
Lianlian Song ◽  
Yang Shi ◽  
Geoffrey Kwok Fai Tso ◽  
Hing Po Lo
Keyword(s):  
Dynamic Models ◽  
Reduced Form ◽  
Structural Dynamic ◽  
Television Ratings

scholarly journals Experimental validation of numerical structural dynamic models for metal plate joining techniques

2017 ◽  
Vol 24 (15) ◽  
pp. 3348-3369 ◽  
Author(s):  
L Van Belle ◽  
D Brandolisio ◽  
E Deckers ◽  
S Jonckheere ◽  
C Claeys ◽  
...  
Keyword(s):  
Adhesive Bonding ◽  
Dynamic Models ◽  
Numerical Models ◽  
Metal Plate ◽  
Joint Models ◽  
Structural Dynamic ◽  
Single Plate ◽  
Power Injection ◽  
Stiffness And Damping ◽  
Good Agreement

Joined structures are of great industrial relevance. The dynamic effects of joints are, however, often practically difficult to accurately account for in numerical models, as they often lead to local changes in stiffness and damping. This paper discusses the comparison between measurements and simulations of joined panels considering four different joining techniques: adhesive bonding, metal inert gas welding, resistance spot welding and flow drill screwing. An experimental modal analysis is performed on the different systems and the power injection method is applied to determine the loss factors of single plate systems and their joined counterparts. The joined panels are modeled in a holistic simulation environment with particular focus on the joining region, by the application of predefined and generic joint models. A very good agreement is obtained between the simulated dynamic behavior and the experimental results, showing that an accurate representation of the joints has been obtained.

Mechanical Shock and Vibration Analysis of Spent Nuclear Fuel Carried by the Atlas Railcar

2020 ◽  
Author(s):  
Nicholas Klymyshyn ◽  
Kevin Kadooka ◽  
Pavlo Ivanusa ◽  
Casey Spitz
Keyword(s):  
Nuclear Fuel ◽  
Dynamic Models ◽  
Spent Nuclear Fuel ◽  
Pacific Northwest National Laboratory ◽  
Department Of Energy ◽  
Mechanical Shock ◽  
Structural Dynamic ◽  
Multimodal Transportation ◽  
Wide Range ◽  
Dynamics Models

Abstract Researchers at Pacific Northwest National Laboratory have completed a structural-dynamic analysis of spent nuclear fuel subjected to the mechanical shock and vibration environment that is anticipated during normal conditions of transport in casks carried by the Atlas railcar. The Atlas railcar is a new railcar design that is being developed specifically for the purpose of carrying spent nuclear fuel casks. The analysis used best-estimate railcar dynamics models of the Atlas railcar and considered 17 different spent nuclear fuel transportation cask systems, representing the current fleet of cask options. This work used NUCARS, a specialized railcar dynamics explicit finite element code to calculate railcar dynamic response to prescribed speeds and track configurations. The railcar dynamics models provided cask transient motion for a wide range of speeds and track conditions, generating a relatively large database of potential cask motion. All of the cask motion transients were then applied as loading conditions to LS-DYNA structural-dynamic models of a single fuel rod. The analyses predict that the Equipos Nucleares S.A./U.S. Department of Energy (ENSA/DOE) multimodal transportation test of 2017 provided a relatively stronger vibration environment than is expected from the Atlas railcar. This paper describes the analysis methods, the analysis results, and compares the results of the Atlas transportation analysis to the test results and analyses of the ENSA/DOE multimodal transportation test of 2017.

Vibrational spectra and structural dynamic models of arsine-and phosphine-substituted biphenyl

2008 ◽  
Vol 75 (4) ◽  
pp. 488-493
Author(s):  
P. M. Élkin ◽  
V. F. Pulin ◽  
E. A. Dzhalmuhambetova
Keyword(s):  
Vibrational Spectra ◽  
Dynamic Models ◽  
Structural Dynamic

Structural-dynamic models and vibrational spectra of nitrobenzene and nitropyridines

2005 ◽  
Author(s):  
P. M. Elkin ◽  
L. M. Babkov ◽  
T. V. Bezrodnaya ◽  
G. A. Puchkovskaya ◽  
M. D. Elkin
Keyword(s):  
Vibrational Spectra ◽  
Dynamic Models ◽  
Structural Dynamic
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