The concept points substantiation of lifting and conveying machines dynamic driving modes optimization

Abstract

The paper studied the effect of quasioptimal control function parameters and parameters of
the dynamic system „crane-сargo” on the dynamic loads in the crane elements.
The three-mass dynamic model has been used. It allowed determine the load in the
metalware during the realization of optimal and quasioptimal control of its movement. The
estimation of dynamics carried out in terms of maximum effort in crane metalware.
It has been found that the decrease in the maximum metalware loading occurs during the
second sign change of control function. The duration of the transition from the maximum control
value to zero significant impact on the dynamic loads decreasing.
Based on these studies have been found rational value of changes duration from a maximum
force to zero. The duration is at a level of 0,1 seconds.