关键词: 云制造生态系统, 竞争合作演化模型, 生态位理论, 仿真分析

Abstract: To analyze the participants'cooperative and competitive relationship of cloud manufacturing ecosystem and its impact on individual development ,and to investigate the stability and balance of the system,an evolution model of cooperative and competitive relationship of individuals was put forward.The concept of individual niche was defined according to the role and the status of participants in cloud manufacturing ecosystem,and the calculation method of niche breadth and niche overlap was discussed.On this basis,a dynamics model for cooperative and competitive relationship of individuals was built.Simulation analysis showed that niche breadth and overlap had great impact on individual development,and the individuals of wide niche and lower overlap had better adaptability and broad development space.The initial states had an important influence to earlier stage of development but no obvious effect on latter period.The impact of changing competitive environment on new population was significant.Individuals of different competitiveness could coexist in some extent competence.Cooperation was beneficial to the coexistence in different individuals,and the improvement of cooperation level was rose with benefits of individuals.

Key words: cloud manufacturing ecosystem, evolution model of cooperation and competition, niche theory, simulation analysis