Design Of Subsidy Policy For Automobile Engine Remanufacturing Based On 3D Printing

The gradual application of 3D printing technology has brought new opportunities to traditional manufacturing methods.As a big country of automobile production and consumption,China produces many scrapped automobile engines every year.By combining the 3D printing technology with the remanufacturing of used automobile engines,it is bound to have better sustainability benefits than the manufacturing of new engines.But this cannot be achieved without the support of relevant government subsidy policies.This paper starts from the recycling treatment subsidy and R&D subsidy in the government subsidy policy.Using WD615 engine represented by heavy truck as the research object,and the system dynamics model is built by using Vensim PLE software.Through describing and equation setting of related variables that influence 3D printing remanufactured automobile engine.Based on the reality test and limit test analysis of the model,two variables,namely the scrap rate of heavy truck and the preference degree of 3D printing remanufacturing of the enterprise,were taken as independent variables.According to the high and low scenarios assumed by these two variables,the basic scenarios representing the four market types were constructed.Through model simulation analysis,find how to design reasonable subsidy policies to stimulate the 3D printing remanufacturing industry of automobile engines in three immature markets.Through research,from the perspective of government subsidy cost and long-term incentive effect,the recycling and treatment subsidy policy with 20% subsidy rate is designed for the market type of "low scrap rate of heavy truck and low preference for 3D printing remanufacturing of the enterprise ".For the market type of "low scrap rate of heavy truck and high preference for 3D printing remanufacturing of the enterprise",designed the recycling and treatment subsidy policy with 15% subsidy rate.For the market type of "high scrap rate of heavy truck and low preference for 3D printing remanufacturing of the enterprise",designed the R&D subsidy policy with 4% subsidy rate.