Disclosed is a knuckle boom crane, for offshore application, the knuckle boom crane including a crane house, a knuckle boom carried by the crane house, a component for operating the crane house and the knuckle boom, and a controller for piloting the operating component. The controller include a active compensation module that is designed to pilot the operating means, taking into account data coming from a motion reference unit, in such a way as to stabilize a downstream end of the jib, advantageously in a horizontal plane and/or a vertical position, still preferably in all directions.

A load carrying assembly for carrying a load with a rotary wing aircraft. The load carrying assembly includes a cargo cable and a load engaging system. The cargo cable may have a first end that is attachable to a hoist or a cargo hook arrangement. The load engaging system may include a first attachment that is attached to the second end of the cargo cable, a second attachment that is adapted for receiving a load, a connecting apparatus that connects the first attachment with the second attachment, and at least two first and second thrust producing devices that are attached to the connecting apparatus and produce thrust in a direction that is orthogonal to the cargo cable extension.

Provided is a method for installing components of a wind turbine, with a lifting device for lifting the respective component hanging at the lifting device via at least one cable, whereby at least one stabilization device is stabilizing the component against vibrations induced by external forces by a gyroscopic effect.

This dynamic lift-off control device is mounted in a crane including a boom and a winch that winds a wire rope, the dynamic lift-off control device controlling dynamic lift-off of a suspended load, wherein the dynamic lift-off device comprises a rotation detection unit that detects the rotation speed of the winch, a pressure detection unit that detects a pressure value of a derricking cylinder that raises/lowers the boom, an estimation unit that estimates the derricking angular velocity of the boom on the basis of the respective detection values from the rotation detection unit and the pressure detection unit, and a control unit that controls the derricking operation of the boom on the basis of the estimated value estimated by the estimation unit and a target derricking angular velocity of the boom that is calculated on the basis of the detection value from the pressure detection unit.

In order to eliminate control problems caused by a manipulated variable limitation in the oscillation control of an oscillatable technical system, a restriction $\left(\frac{d^{n}u}{{{\mathrm{dt}}^n}_{min}},\frac{d^{n}u}{{{\mathrm{dt}}^n}_{m\mathrm{ax}}}\right)$
of at least one time derivative of the manipulated variable (u) in a control law for calculating the manipulated variable (u) is taken into account.

A nonlinear resonance model-based active filtering crane steel rope resonance elimination control method, including: constructing a two-dimensional dynamic model of a bridge crane according to a Lagrange's equation; constructing a steel wire rope-motor nonlinear resonance model to detect a harmonic; and eliminating the harmonic by means of active filtering. The present disclosure makes in-depth study on positioning of a crane and intelligent control of an anti-swing and resonance elimination control system and uses active filtering to eliminate resonance between a heavy object and the steel wire rope, thereby reducing a swinging angle and achieving the rapid resonance elimination and anti-swing effect. The active filtering technology can quickly and effectively detect a resonance current so as to effectively suppress resonance between the heavy object and the steel wire rope, and further helps a controller quickly and accurately position a trolley to further improve anti-swing performance.

Load lifting systems include a first flexible suspension member configured to attach to a load lifting structure at a first fixed connection at a first end of the first flexible suspension member and attach to the load lifting structure at a first adjustable connection at a second end of the first flexible suspension member and a second flexible suspension member configured to attach to the load lifting structure at a second fixed connection at a first end of the second flexible suspension member and attach to the load lifting structure at a second adjustable connection at a second end of the second flexible suspension member. An interconnect member extends between and connecting the first adjustable connection and the second adjustable connection. A carriage is movingly suspended on both the first flexible suspension member and the second flexible suspension member.

Disclosed are systems, apparatuses, and methods to deploy and stow a deployable equipment to and from a hoist, to control a load on a suspension without transfer of torque to the suspension cable, for the deployable equipment to obtain data and electrical services from a dock of a carrier, and for the deployable equipment to control the hoist, such as a reel of a hoist, to control a z-axis of a terminal end of the suspension cable. Control of the z-axis may be, for example, to control an elevation of a load, such as relative to carrier, ground, or an objective or target, to control a tension on or of suspension cable. Control of the z-axis may be, for example, to control a rate of ascent or descent of a terminal end of suspension cable.

A system for servicing a nuclear reactor module comprises a crane operable to attach to the nuclear reactor module, wherein the crane includes provisions for routing signals from one or more sensors of the nuclear reactor module to one or more sensor receivers.

There is provided a crane control method whereby shaking of a load can be suppressed when automatically transporting the load along a set transport path using a crane; and a crane that is controllable by this control method. The control method includes: calculating a target transport time (Ti) of a load (W), transported by a crane (1), in a section defined by two passing points adjacent in a passing order; calculating, from a distance between the passing points and the target transport time (Ti), a target speed signal of the load (W) in the section; converting a stepped target speed signal, which connects the target speed signal of the section and a target speed signal of another section adjacent to the section, to a non-stepped target speed signal using a target value filter (F); and carrying out control on the basis of the non-stepped target speed signal.