Investigation On The Crankshaft Bending Fatigue Simulation And Its Fatigue Damage Characterization With Parameter Of Magnetic Memory Method

With the development of automobile industry in China, the volume of in use vehicles is increasing rapidly, so is the number of end-of-life vehicles (ELVs). The inappropriate treatment of ELVs will bring about environmental issues which include air and water pollution, contaminating and wasting precious farmlands. On the point view of circular economics, the waste is the wrong placed resource. When the ELVs are disposed correctly, there is a new resource for offering spare automobile parts, scrap metals like iron and energy. Therefore, studying on the key techniques of ELVs recovery will not only treat the huge number of end-of-life vehicles, but convert wastes into resources as well. And, it is a significant way of saving natural resources, protecting the environment and promoting the development of sustainable economy.This paper focuses on the key techniques of recycling engines of end-of-life vehicles. The research work in this paper can be described as exploring the answers to four questions. One, is about the simulation of bending fatigue of single crank; Two, is about optimal design of bending fatigue tester for crankshaft.Third, is about metal magnetic memory characterization of bending fatigue damage for crankshaft.As for the first question,firstly,by the review and comparison among several bending testers for crankshaft,it is concluded that the electric resonance method has the advantage of high accuracy,high efficiency and saving energy,then designing the bending testers for crankshaft according to...