Analysis And Research On Technical Evolution Of Ship Propulsion Power System

As an important strategic pillar industry of China,the shipbuilding industry occupies an important position in China ’s national economy and has made outstanding contributions to China ’s economic development.The ship ’s propulsion power system is the most critical component of ships,and its technological innovations will contribute to the development of the shipbuilding industry.Play a role that cannot be ignored.While paying attention to technological innovation,ensuring the correct direction of innovation can play a multiplier effect in technological development.This paper mainly uses patent analysis methods,main path analysis methods and quantitative analysis methods to focus on the research and analysis of the development of ship propulsion power system from the perspective of technological evolution,and provide suggestions for the technology development of related companies in the field of ship propulsion power system.The main research contents are as follows:(1)Patent information analysis of ship propulsion power system.Through the patent information related to the ship propulsion power system in the Smart Bud Global Patent Information Database,analyze the distribution of current ship propulsion power system technology in time,space and technology concentration,and contact the historical environment and measures in different periods in the process of technology development to achieve Multi-dimensional mining of patent information further reveals the information behind patent information.(2)Analysis of the main development path of ship propulsion power system technology.Process patent information of ship propulsion power system through Pajek and Python,construct patent mutual citation network,use SPC algorithm to extract the main development path of ship propulsion power system technology,and analyze the technological development of ship propulsion power system in stages from the perspective of patent timing connectivity.(3)Technical evolution analysis of ship propulsion power system.On the basis of the main path of technological development,the theme of technological evolution of ship propulsion power system is extracted,and the two-dimensional matrix of technological evolution of ship propulsion power system is constructed by setting indicators describing technological evolution,and the stages of technology fusion and elimination evolution are divided.The technical characteristics of the rule recognition evolution stage provide suggestions for enterprise technology development.