文档介绍：附录
The skeleton of a wingspan van body is one of the most ponents for a van. Its weight is about one third of the whole vehicle gross mass. The weight lightening of skeletons is of great importance to reduce the vehicle weight. This dissertation seeks feasible methods for the lightened skeleton of a van body through FEM (finite element method) analysis on the skeleton of a wingspan van’s body. FEA has e one of the most important tools in modern automobile design. Compared with traditional methods, its advantages lie in improving the quality of auto products, reducing the cost of product-developing and production, and increasing petition of auto products in the market. In order to improve the level of van body designing and guarantee petition of designed vehicles in the market, we must heighten the FEA technique of the van body to a strategic level.
Van, as a fuel-consuming vehicle, is attached great importance in regards to its fuel-saving level which is directly connected with the energy consumption of our whole country. Due to this great significance, van manufacturers all over the world try their best to lighten the weight of vans. The technique of weight-lightening design has e one of the hot techniques in the research field.
Since the exploitation condition of van is extremely bad, and stress condition plex, the skeleton should have enough rigidity so as to keep the