Anti-Vibration Control System for Suspension Cranes

摘要

The control system has a travel device (1) to hold a body (2) being transported on a linear element (3) that winds and unwinds. The travel device runs on a track. A lifting device (11, 12) on the travel device raises the linear element and thus raises (or lowers) the body. The travel device speed is controlled (26) in accordance with a speed pattern. A control device determines the amount by which the body is raised and lowered by the lifting device. A programmable control device (30) calculates the average length of the linear element between the travel device and the body using a given function and wanted values.