The Structure Design And Static Analysis Of Full-rotating Comprehensive Propeller Worked In60m Water

The land resources are in short supply because of increasing energy consumption, sothe exploration and development of ocean resources is very important to the economydevelopment of all nations. With the development and utilization of ocean resources, oceanresources are explored more and more widely, the exploration of marine petroleum andnatural gas is in more deeper and worse environment. The performance of propeller that isthe actuator of ship power is very important to ship. The traditional propeller change drivingdirection of ship by rudder, and can’t utilize all power of the main engine in all conditions.The maximum efficiency of propeller is70%and30%power is lost. It is less maneuverableand inefficient, therefore, researching and developing a propeller with high efficiency andexcellent performance is of great significance to the development of shipping industry in ourcountry.In the paper, the full-rotating and Controllable Pitch Propeller which transmitspower based on spiral bevel gear is researched. The propeller can be rotated within360°without rudder, and at the same time the direction and speed of the main engines can be notchanged, so the operation is flexible and the main engine is efficient with a long life.Besides, ships are safe and reliable because they can be turned around flexibly. The reversespeed can be accelerated and the accidents which happened for the ships not reverse in timeare reduced because the propeller can be rotated180°in horizontal plane or changepropeller pitch.The structure of propeller shaft, spiral bevel gear, bearings, slewing bearing andgearbox which are the main parts of the full-rotating and Controllable Pitch Propeller aredesigned according to technical parameters at the beginning of the paper, and thethree-dimensional model of parts are built and assembled by the software Solidworks andUG, then the static analysis of gear and shaft which is critical components by virtue ofAnsys Workbench is made, the stress states and change rules in a meshing period and thestress and strain of shaft are summarized. In the end, the optimization design of spiral bevelgear are completed by virtue of numerical calculation software Matlab, and a group ofparameters when the volume of gear is minimal on the premise that strength of gear meets requirements are obtained.