Dynamic Positioning Of Offshore Vessels

It is important for every DP professional to understand the system well that they are going operate or maintain. Keeping this in view, this book starts with an introduction to the functioning of DP system. Chapter two makes the reader aware of the six degrees of the movements. The understanding of the movements controlled by the DP system and the movements compensated for offsetting the readings of the position reference sensors is explained. Chapter three deals with the seven components of the DP system, how they connect with each other and how the controller controls the thruster output with the help of thruster allocation logic. Asking questions make the learning process more interactive. The book includes the questions and their answers which address various aspects of Bloom’s taxonomy of understanding, applying and evaluating the subject. Chapter four to chapter fifteen contain the questions and answers. These chapters include questions and answers from basic functioning of the DP system, the sensor, position reference sensor, test on PRS, automation and networking used in DP system, various tests and trials conducted and importantly the operations related questions.

Dynamic Positioning for Engineers enables the reader to acquire the basic knowledge of the concepts and understanding of the dynamic positioning (DP) system from the systems perspective. This book illustrates the system, subsystems and components of the DP system to better tackle maintenance, problems and breakdowns, leading to an increased mean time between failures and effective fault finding on dynamic positioning DP-related equipment. Overall, this text will help professionals reduce downtime and higher repair costs. Aimed at onboard electrical engineers, engine room watch officers, chief engineers, DP professionals onboard, in onshore officers and those taking DP training courses, this book: Explains automation and its application in the DP system Describes environmental sensors and position reference sensors as important inputs to the DP system Includes chapters on power management and thrusters Aids engineers in maintaining a the DP system in good operational condition

This report reviews the current approach to demonstrating redundancy on offshore vessels with dynamic positioning (DP) systems, in order to establish whether it meets the requirements for suitable and sufficient risk assessment. The review The review covers the relevant formal requirements and guidelines, recent incident experience, failure modes and effects analyses (FMEAs) and trials reports, consultations with stakeholders in the industry, and a review of approaches used in other industries. It concludes that the current approach is appropriate in principle, although there are several areas of weakness in the way it is applied in practice. In order to make more effective use of FMEAs, the report recommends that management guidance should be developed, to provide an industry standard for how FMEAs of DP systems should be specified, managed, performed, verified and updated. Meanwhile, specific recommendations are made to each stakeholder on some of the key issues that would eventually be covered in the management guidance.