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Problems of the equilibrium of a rigid body and mechanical systems

Do S., Do K. D.

Computer Assisted Mechanics and Engineering Sciences

2009

Vol. 16, No. 2

81-100

In this article one of the greatest generalized methods for establishing the equilibrium equations of a rigid body and the set of rigid bodies is proposed. It is related to six equations of moments of force about six the edges of a reference tetragon. It is possible to obtain different alternatives by substituting the force moment-equation for the force project-equation. Four different forms of equilibrium are established. It is important writing equilibrium equations of bodies possible to apply the special software as Mathcad, Maple.

One parameter's configurations

Paprocki E., Szynal A.

Zeszyty Naukowe Politechniki Rzeszowskiej. Matematyka

1998

z. 22 [170]

115-119

Authors give characterization of the group of one parameter's configurations.

Harmonic quadrilaterals

Wilczek K.

Zeszyty Naukowe Politechniki Rzeszowskiej. Matematyka

1998

z. 22 [170]

139-149

In the paper some harmonic quadrilaterals to the given quadrilaterals are investigated. Every vertex of such harmonic quadrilaterals is the harmonic center of three vertex given quadrilateral.