This paper deals with the test plant and test results of a gas generator of a by-pass dual-rotor engine with variable duct flow path resistance.
途述了带外函道的双转子发动机内、外函分流，各自通流阻力可以改变的燃气发生器试验装置和试验结果。
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The structural finite element modelling and the finite element analysis of linear buckling characteristics of the composite bypassduct case of aeroengine are carried out.