The Design And Research Of Ship Podded Hydraulic Propulsion

Ship is the main carrier of ship industry and ship business. As the core of the ship, the main propulsion system’s performance directly determines whether the whole ship can perform well or not. However, with the developing of modern ships gradually towards to high-speed, large-scale and professional direction, the traditional direct propulsion of diesel engine mode gradually show some disadvantages to the development of modern ship. Therefore, exploring a new propulsion mode of good maneuvering characteristics and comprehensive properties is the requirement of the development of modern ships.This paper analyzes the advantages and disadvantages of podded hydraulic propulsion of ship and modern existing ship main propulsion mode, the passage proofs that research the podded hydraulic propulsion of ship has practical significance. This paper mainly includes the following four aspects:(1) Analyzes the podded hydraulic propulsion system of ship’s working principle and system composition, based on that designed the hydraulic propulsion system of podded hydraulic propulsion system of ship. Research and analyzes the hydraulic propulsion system from its major circuit, fill oil circuit, overload protection circuit, other load circuit and so on.(2) Design the pod thruster of podded hydraulic propulsion system, and analyzes the structure of the thruster from several aspects. Selecting the key components of hydraulic system, and compare the size of the pod of hydraulic propulsion’s and electric propulsion’s.(3) According to the leakage of hydraulic propulsion system and the system heat power, calculated the needed minimum amount of fill oil and the minimum displacement of fill oil pump of the hydraulic propulsion system; and then analyze the structure of hydraulic oil tank, and calculated the minimum volume of the oil tank according to the method of heat balance. (4) Established the podded hydraulic propulsion system’s simulation model based on AMESim simulation software. Through simulation analyzes of the podded hydraulic propulsion system proved that the podded hydraulic propulsion is a propulsion mode with excellent performance, and provides theoretical base for further developing of the podded hydraulic propulsion.