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通过对两种型号发动机的进气机匣罩进行三维建模和在全约束条件下进行固有模态有限元计算分析,给出了前100阶的固有频率和位移曲线。分析结果表明,A型进气机匣罩更容易发生共振,其产生裂纹或失效的风险更大。
Through the three-dimensional modeling of the intake casing casings of two engine models and the analysis of the eigen modal FEA under full constraint conditions, the first 100 natural frequencies and displacement curves are given. The analysis shows that the A-type intake casing casings are more prone to resonance and have a greater risk of cracking or failure.