Papers by Author: Jan Ryś

Abstract: This paper deals with a description of a new type an aerodynamic balance used in a wind tunnel for measuring forces acting on a model. A concept of the strain gauge balance in which the three component of aerodynamically force can be measured was presented. The tests proved good measuring accuracy of this construction. On the basis of such a solution three component of force and aerodynamic load factors can be easily evaluated.

Abstract: This article deals with a description of weld damage in a punching press. Static and modal analyses were performed in ANSYS v.11. Dynamic stresses in welds were evaluated using the Laplace’s transformation for a simplified model with a single mass on a spring.