OMA analysis for the identification of the damping properties of a sloshing fluid

2022 ◽  
Author(s):  
Giuliano Coppotelli ◽  
Gawra Franceschini ◽  
Francesco Saltari
Keyword(s):  
AIAA Journal ◽  
1998 ◽  
Vol 36 ◽  
pp. 1094-1099
Author(s):  
Amar T. Chouaki ◽  
Pierre Ladeveze ◽  
Laurent Proslier

2019 ◽  
pp. 96-98
Author(s):  
B. T. Ibragimov ◽  
S. V. Mirzaev ◽  
D. R. Raupov ◽  
A. R. Raupov ◽  
Z. Ilashov

2021 ◽  
Vol 11 (2) ◽  
pp. 605
Author(s):  
Antonio Agresta ◽  
Nicola Cavalagli ◽  
Chiara Biscarini ◽  
Filippo Ubertini

The present work aims at understanding and modelling some key aspects of the sloshing phenomenon, related to the motion of water inside a container and its effects on the substructure. In particular, the attention is focused on the effects of bottom shapes (flat, sloped and circular) and water depth ratio on the natural sloshing frequencies and damping properties of the inner fluid. To this aim, a series of experimental tests has been carried out on tanks characterised by different bottom shapes installed over a sliding table equipped with a shear load cell for the measurement of the dynamic base shear force. The results are useful for optimising the geometric characteristics of the tank and the fluid mass in order to obtain enhanced energy dissipation performances by exploiting fluid–structure interaction effects.


Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 799
Author(s):  
Justyna Miedzianowska ◽  
Marcin Masłowski ◽  
Przemysław Rybiński ◽  
Krzysztof Strzelec

Increasingly, raw materials of natural origin are used as fillers in polymer composites. Such biocomposites have satisfactory properties. To ensure above-average functional properties, modifications of biofillers with other materials are also used. The presented research work aimed to produce and characterize elastomeric materials with a straw-based filler and four different types of montmorillonite. The main research goal was to obtain improved functional parameters of vulcanizates based on natural rubber. A series of composites filled with straw and certain types of modified and unmodified nano-clays in various ratios and amounts were prepared. Then, they were subjected to a series of tests to assess the impact of the hybrids used on the final product. It has been shown that the addition of optimal amounts of biofillers can, inter alia, increase the tensile strength of the composite, improve damping properties, extend the burning time of the material and affect the course of vulcanization or cross-linking density.


2021 ◽  
Vol 160 ◽  
pp. 107372
Author(s):  
Yong Zhou ◽  
Anna Liu ◽  
Yongzheng Xu ◽  
Yunli Guo ◽  
Xiaosu Yi ◽  
...  

2012 ◽  
Vol 94 (11) ◽  
pp. 3309-3320 ◽  
Author(s):  
Marco Montemurro ◽  
Yao Koutsawa ◽  
Salim Belouettar ◽  
Angela Vincenti ◽  
Paolo Vannucci

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

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