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In order to improve the competitive advantage of the supply chain, occupy more market shares, and obtain greater benefits, many companies participate in the competition within or between supply chains. This article mainly introduces the game analysis of enterprise value chain operation mode under the background of green economy. This article mainly introduces the competition of business value chain operation mode under the background of green economy and determines its best-selling price and sales volume. This article first outlines the background of the green economy. Secondly, a competition model between multiple retailers is constructed, and the optimal strategy under the two modes of Cournot competition and Stackelberg competition is studied. Finally, the impact of the green economy coefficient on the maximum sales is analyzed. The experimental results of this article show that the average growth rate of total income after the transformation of the business value chain operation mode of the business under the background of the green economy is 9.03%, which also shows that the green economic policy has ultimate significance and is obviously innovative.

A truck gearbox was chosen as research object of the text. 3D model of transmission gear was firstly built up by using SolidWorks software, and the Simulation module was utilized for modal analysis of transmission gear by using finite element method. The modal forms and deformation extent of transmission gear under several frequencies were gained and analyzed the maximum displacement deformation of gear with loading. It provides a reference for reverse engineering and optimization design of transmission gear.

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