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1 2013

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The notation of mechanism structure in structural research

Romaniak K.

Journal Biuletyn of Polish Society for Geometry and Engineering Graphics

2013

Vol. 25

3--10

Different methods of notation are in use when describing the construction of mechanisms in structural research. This work deals with the issue of notation and presents: – constructional drawing in which the construction of the mechanism is detailed by the use of the Monge’s projection (views, projections), axonometric or perspective projections; – kinematic diagram in which kinematic pairs and links are described by symbols. Given dimensions of individual links allow to specify the positioning of specific parts of the mechanism depending on the movement of input links; – structural diagram in which the class of each kinematic pair is specified; – structural graph in a form of a polygon in which its sides and vertices correspond with kinematic pairs and links respectively; – adjacency matrix in a form of a square matrix in which the number of rows and columns corresponds with the number of links in the mechanism. Its elements are: 0 when links are not joined, or 1 when links are joined; – loop notation in which links and kinematic pairs that form individual closed contours of the mechanism are given; – author’s notation of the construction of spatial mechanisms, in which the classes of kinematic pairs are presented in a form of labels next to their graphic representation.

Praca poświęcona jest różnym sposobom zapisu mechanizmów, używanych w badaniach strukturalnych. Przedstawiono: – zapis konstrukcyjny, w którym używając rzuty prostokątne (widoki, przekroje) oraz aksonometrię przedstawia się szczegółowo budowę mechanizmu;