Motion Control in Offshore and Dredging

P. Albers

• 23 augustus 2016
• 9789401777872

Samenvatting:

High loads with high dynamics in severe conditions can only be driven by fluid power mechanisms. In the case of rotating drives, the choice for an electrical drive is becoming more and more prevalent. Linear drives remain important, because of the large forces and highly dynamic behaviour in the domain of hydraulic drive technology.

Motion Control finds applications in many offshore, subsea and dredging installations. Motion Control is always based on a combination of mechanical-, electrical- and hydraulic drive systems together with control techniques. The book provides the basic theory of hydraulic controls, behaviour of hydraulic fluids, hydraulic component functions, parameter selections, calculation of basic hydraulic systems and basic theory of electrical drives: asynchronous motors with frequency drives. Apart from the theoretical background on the drive principles, many new practical applications are given on the design of drive and control techniques for the offshore and dredging industry, for example, the design of the saw that had to cut the nose from the Russian submarine "Kursk" before it could be salvaged from the seabed. Special attention is given to the static and dynamic behaviour of hydraulically and electrically driven systems, the behaviour of feedback control systems with the remaining dynamics and accuracies that can be obtained. Many examples are given of installed drives for offshore applications, pipe tensioners, pipe handling equipment, pipe-lay towers. Detailed information is presented on active and passive heave compensators for cranes, deep sea installations, access systems suction dredgers and the design of high pressure gas equipment in these systems.

High loads with high dynamics in severe conditions can only be driven by fluid power mechanisms. Motion Control is often used as a description in various engineering disciplines to refer to a technological solution that is able to control motion, e.g. the movement of at least one part relative to another. This volume describes how drives, sometimes very large, are designed and realised.

The book gives a practical explanation of the way in which the different mechanisms described work. A distinction is made between rotating and linear drives. In the case of rotating drives, the choice for an electrical drive is becoming more and more prevalent. Linear drives remain important, because of the large forces and highly dynamic behaviour in the domain of hydraulic drive technology. Both these important technologies are extensively discussed in this book, together with design rules and the many installation requirements for applications in the offshore and dredging industry.