DYNAMIC LIFT-OFF ASSESSMENT DEVICE, DYNAMIC LIFT-OFF CONTROL DEVICE, AND MOVABLE CRANE

摘要

The present invention provides a dynamic lift-off assessment device with which it is possible to quickly assess dynamic lift-off by a simple method while suppressing swaying of a load. This dynamic lift-off assessment device C includes: a boom 14 configured so as to be capable of derricking; a winch 13 that hoists/releases a suspended load via a wire rope 16; a load weight measurement means 22 for measuring the weight of a load applied to the boom 14; a flexural vibration filter 31 for damping a flexural vibration component pertaining to the boom 14, the flexural vibration component being included in load weight data; and a control unit 40 for controlling the boom 14 and the winch 13. The dynamic lift-off assessment device C is formed so that, when the winch 13 is hoisted and the suspended load is dynamically lifted off, the dynamic lift-off is assessed on the basis of the change over time in the load weight data that has been passed through the flexural vibration filter 31.