Temat: nonlinear motions - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Numerical effectiveness of different formulations of the rigid finite element method
Autorzy:: Adamiec-Wójcik, I.
Drąg, Ł.
Wojciech, S.
Powiązania:: https://bibliotekanauki.pl/articles/955258.pdf
Data publikacji:: 2014
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: metoda elementów skończonych
analiza dynamiczna
manipulatory
flexibility of links
rigid finite element method
dynamic analysis
nonlinear motions
numerical effectiveness
Opis:: The paper presents an application of different formulations of the rigid finite element method (RFEM) to dynamic analysis of flexible beams. We discuss numerical effectiveness of the classical RFEM and an alternative approach in which continuity of displacements is preserved by means of constraint equations. The analysis is carried out for a benchmark problem of the spin-up motion in planar and spatial cases. Torsion is omitted for numerical simulations and two cases of the new approach are considered. The results obtained by means of these methods are compared with the results obtained using a nonlinear two-node superelement.
Źródło:: International Journal of Applied Mechanics and Engineering; 2014, 19, 3; 475-485
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Second Generation Intact Stability Criteria: on the validation of codes for direct stability assessment in the framework of an example application
Autorzy:: Bulian, G.
Francescutto, A.
Powiązania:: https://bibliotekanauki.pl/articles/260465.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: large amplitude ship motions
second generation intact stability criteria
nonlinear roll
sub-harmonic resonance
validation
Opis:: The Sub-Committee on Stability and Load Lines and on Fishing Vessels Safety (SLF) of the International Maritime Organization (IMO) has undertaken the development of so-called “Second Generation Intact Stability Criteria” (SGISC) with the intention of providing a new set of rules covering those phenomena which are not properly covered by present, mostly semi-empirical, requirements. The first two levels of the envisioned 3+1 tiers structure of SGISC are so-called “vulnerability assessment” levels: most of the discussion has so far been dedicated to these levels. At the highest level there is the so-called “Direct Stability Assessment”, which is also strictly linked with the development of ship-specific “Operational Guidance”. Recent discussion on the topic of “Direct Stability Assessment” (DSA) has touched the issue of “validation” of numerical codes to be employed at this level. Stimulated by, and in view of, the ongoing IMO discussion, this paper presents the results of a recent series of experiments in beam waves (mono-/bichromatic, irregular) and associated simulations based on a 6-DOF blended code. Nonlinear harmonic and sub-harmonic resonances are observed and simulated.
Źródło:: Polish Maritime Research; 2013, 4; 52-61
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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