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- W2392479144 abstract "In order to improve the quality of the assembly operation for rod fastening rotors of high pressure spool in an aero-engine,this paper presents an assembly variation detection method based on nonlinear damping identification.A combined damping model is applied to describe the nonlinear contact in a rod fastening rotor,and the equation for nonlinear damping identification based on Hilbert-Huang transform(HHT) is found by a step-by-step integration of the energy dissipation equation.Then,dynamic experiments are carried out in three different scenarios,including a normal assembly,preload changes of a single bolted joint and two separate bolted joints.The dynamic response data are processed using the proposed nonlinear damping identification method.A strong correlation is observed between the changes of the preload and the nonlinear damping which represents the amount of nonlinear energy dissipation.In this way,the validity of the proposed assembly variation detection method is confirmed." @default.
- W2392479144 created "2016-06-24" @default.
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- W2392479144 date "2012-01-01" @default.
- W2392479144 modified "2023-09-26" @default.
- W2392479144 title "Assembly Variation Detection for Rod Fastening Rotor of High Pressure Spool in Aero-engine Based on Nonlinear Damping Identification" @default.
- W2392479144 hasPublicationYear "2012" @default.
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