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航空发动机低压压气机为大叶片结构,离心负荷较高,接触应力显著。利用光弹性模型的形变记忆功能,用三维剪应力差法测量了接触面的三维接触应力。所用方法可应用于其他面接触问题的接触应力分析。
Aeroengine low pressure compressor is a large blade structure, high centrifugal load, contact stress significantly. The three-dimensional contact stress of the contact surface was measured by three-dimensional shear stress difference method using the memorized function of the photoelastic model. The method used can be applied to contact stress analysis of other surface contact problems.