Fundamental Research On Lightning Technology Of Anchor

The 21st century is the age of the ocean, the efforts to develop ocean are increased by many countries, and marine development is inseparable from the support of the shipbuilding industry. Thus, the 21st century will be the period of rapid development of the shipbuilding industry. As the main equipment of ships mooring system, anchor windlass plays an important role in the safe operation of the ship. In traditional design, the volume of anchor windlass is too large and the structure is too bulky, the efficiency of mechanical transmission is poor, resulting in the waste of materials and energy. Therefore, research on the lightweight technology of windlass, optimize its structure and improve transmission efficiency, is the future development trend of windlass and other marine equipment.In this dissertation, the research object is anchor windlass, structural optimization design of the chain wheel and chassis of the anchor windlass based on its working condition respectively, the reasonable results have been achieved in the course of lightweight design. The main operations in this dissertation are as follows:The five stages of anchor windlass during the anchor process are analyzed, and the chain tension of every stage is calculated to draw the load vs time process curve of anchor windlass for anchor process. The Dynamics Simulation Model of windlass is established, the dynamics simulation is analyzed and the loads of chain wheel and chassis are got by simulation. The finite element models of chain wheel and chassis are established, the static and dynamic characteristics of chain wheel and chassis are analyzed, and the equivalent stress and deformation distribution are acquired. According to structural and load characteristics of chain wheel and chassis, optimizing their structure. The size of the chain wheel is optimized, while topology optimization and size optimization for the chassis. The weight of chain wheel and chassis is reduced under the premise of meeting the strength and stiffness requirements. Compare the analysis results of chain wheel and chassis before and after optimization, combined with the strength of the theory to check the optimized structure to ensure that it meets requirements. The results of structural optimization show that:the weight reduction of chain wheel and chassis is realized, lightweight design of anchor windlass is reasonable.