Tehnički vjesnik, Vol. 20 No. 1, 2013.
Izvorni znanstveni članak
Dynamics of the mathematical pendulum suspended from a moving mass
Boris Jerman
; University of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva c. 6, 1000 Ljubljana, Slovenia
Anton Hribar
; Litostroj Steel Ltd, Production of Quality Steel Castings, Litostrojska cesta 44, 1000 Ljubljana, Slovenia
Sažetak
The swinging of the payload is one of the most important contributors to the dynamic loading of cranes. Faster transport of the payload brings up increased swinging, larger dynamic forces, and bigger control issues. That is the reason which makes the investigation of this phenomenon an increasingly actual theme. In the paper, the horizontal inertial forces imparted by the load in the case of the linear motion of the pivot are studied by means of an appropriate mathematical model. The diagram of the factor of the horizontal inertial forces of a swinging payload mass for different conditions of operation is determined. The developed curves are compared with standard curves. It is found out that in some of the cases the standard curves are not conservative.
Ključne riječi
breaking phase; cranes; horizontal inertial forces; load sway; pendulum dynamics
Hrčak ID:
97479
URI
Datum izdavanja:
22.2.2013.
Posjeta: 5.335 *