Equivalent Stress Analysis of S-Shaped Inlet under Constraint Model

The stress of the s-shaped inlet under constraint model is numerical simulated by finite element analysis technology, and get the first six order equivalent stress distribution. Research shows that the maximum equivalent stress of the s-shaped inlet in the first order and second order are distributed at the outlet, the third order to sixth order are distributed at the inlet. The reason is mainly composed of inlet structure, position constraint and model vibration mode, and it focuses on analyzing concrete distribution form and characteristics of the first six order model equivalent stresses.