Abstract: The problem of a too large size of the mine truck's body structure was solved by a finite element model established by using CAS and FE grid division methods.The body is a large structural component of a mine truck and its weight amounts to one forth of the whole deadweight of SGA3723 mine truck.The light-weight design can reduce the deadweight of the whole truck and therefore, is of importance in the design, which can also help save both the material and fuel oil.

Key words: Body, ANSYS, Optimization