Suppression of load’s pendular oscillations of a bridge crane with the relay drive at the minimum number of turning on

Abstract

The authors analyze the possibility of suppressing load’s pendular oscillations of a bridge crane with the relay drive at single turning on of the drive to the acceleration and subsequent singular braking to zero speed with constant accelerations. There are presented results of studies of influencing constant values of acceleration braking and maximal speed of moving drive of separately managed bridge crane's coordinate on the time of movement, length of movement and residual amplitude of a load oscillations while minimizing the latter. The authors consider the controlling case of minimum possible single drive's turning on to the acceleration and single drive's turning off at braking.

Keywords

• мостовой кран
• управление релейного типа
• ускорение
• число включений
• гашение колебаний груза