The Strength Check and Test Application of BI3 CENTRIO70 Shafting
Overspeed tester is an important equipment for overspeed and burst test for aeroengine disk,which is used to test the deformation and bursting of the disk at a certain speed.As a key component of the overspeed tester,the flexible shafting beared complex forces during the test.The strength of BI3 CENTRIO70 shafting have been checked by using ANSYS Workbench software and combining with the fracture test of the fifth integral disk.On this basis,influence of the unbalance force on the strength and radial displacement of the shafting have been studied.The analysis shows that the shafting(with notch)will not break under the unbalance force caused by disk deformation under the condition of breaking speed of the test piece,and its strength meets the test requirements.When the unbalanced force F≥356N,the shafting(with notch)will touch the limit bearing and shear fracture in its shear stress concentration area.The experimental application results show that the fracture area of shafting(with notch)is consistent with the analysis results.
overspeed testerflexible shaftingburst teststrength checkunbalanced force
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