Analysis and Optimal Design about a kind of Bearing Beam with Sleeve Joint Structure

Bearing beam with sleeve joint structure is widely used in telescopic machinery. The stress state is special with this kind of structure. Analysis about the sleeve joint structure in cantilever state was conducted. And the mathematical model was proposed after summarizing its stress characteristic. And then according to the mathematical model, optimal model, with bending section modulus as objective function, was presented. The optimal result was given after optimal program calculated. Finally a finite element analysis was carried out to check the optimal result. The analysis was shown that the optimal result is available. And besides avoiding the blindness, the exact parameters can be quickly found by using this optimal model.