Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 3

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Qualitative model-based analysis of truss structures

Rosłaniec K., Kulpa Z., Kleiber M.

Computer Assisted Mechanics and Engineering Sciences

2002

Vol. 9, No. 1

123-133

The paper discusses some methods of commonsense reasoning applicable to analysis of truss structures. The proposed method, based on qualitative representation of trusses, allows to reach conclusions in the case of highly incomplete knowledge about the system. Two cases are considered. First, when only the general geometry of the structure is known, without the quantitative knowledge of stiffness coefficients of bars. Second, with additional assumption that all stiffness coefficients of bars are roughly equal.

Wpływ internetu na tradycyjny model działalności przedsiębiorstwa.

Rosłaniec K.

Rudy i Metale Nieżelazne

2001

R. 46, nr 2

66-67

Solution sets for systems of linear interval eguations

Kulpa Z., Rosłaniec K.

Computer Assisted Mechanics and Engineering Sciences

2000

Vol. 7, No. 4

625-639

The paper discusses various classes of solution sets for linear interval systems of equations, and their properties. Interval methods constitute an important mathematical and computational tool for modelling real-world systems (especially mechanical) with (bounded) uncertainties of parameters, and for controlling rounding errors in computations. They are in principle much simpler than general probabilistic or fuzzy set formulation, while in the same time they conform very well with many practical situations. Linear interval systems constitute an important subclass of such interval models, still in the process of continuous development. Two important problems in this area are discussed in more detail - the classification of so-called united solution sets, and the problem of overestimation of interval enclosures (in the context of linear systems of equations called also a matrix coefficient dependence problem).