International Journal for Multiscale Computational Engineering
Выходит 6 номеров в год
ISSN Печать: 1543-1649
ISSN Онлайн: 1940-4352
IF:
1.4
5-Year IF:
1.3
Immediacy Index:
2.2
Eigenfactor:
0.00034
JCI:
0.46
SJR:
0.333
SNIP:
0.606
CiteScore™::
3.1
H-Index:
31
Indexed in
A Robust Simulation Algorithm for Conservative Linear Mechanical Systems
Том 1,
Выпуск 2&3, 2003,
22 pages
DOI: 10.1615/IntJMultCompEng.v1.i23.110
Краткое описание
Proposed in this article is an inherently conservative simulation scheme, based on the zero-order hold and a closed-form time response of the system at hand. It is shown that the simulation algorithm can be cast in a form in which the state-transition matrix, mapping a state at instant tk into a state at instant tk+1, is proper orthogonal. Hence, for an n-degree-of-freedom (dof) system, this matrix represents a rotation in the 2n-dimensional space of state variables. As a result, the numerical damping required in the simulation of undamped systems is obviated. The performance of the algorithm is illustrated with two examples drawn from engineering systems.
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