Optimization Design of Special Vehicle Frame Based on Kriging Method

Taking a special vehicle frame as the study object, in allusion to the complex time-consuming FEA computation in the optimization design, the numerical approximation technology of Kriging method is adopted to establish the approximate mapping relationship between design variables of vehicle frame and structural strength, stiffness and weight. The genetic algorithm is employed to perform the optimization design and satisfying results are obtained. The test and example verifications indicate that the Kriging method has very high approximation precision, and can substitute the complex time-consuming FEA computation in the engineering computation.