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Computation and investigation of mode characteristics in nonlinear system with tuned/mistuned contact interface
- Source :
- Frontiers of Mechanical Engineering. 15:133-150
- Publication Year :
- 2019
- Publisher :
- Springer Science and Business Media LLC, 2019.
-
Abstract
- This study derived a novel computation algorithm for a mechanical system with multiple friction contact interfaces that is well-suited to the investigation of nonlinear mode characteristic of a coupling system. The procedure uses the incremental harmonic balance method to obtain the nonlinear parameters of the contact interface. Thereafter, the computed nonlinear parameters are applied to rebuild the matrices of the coupling system, which can be easily solved to calculate the nonlinear mode characteristics by standard iterative solvers. Lastly, the derived method is applied to a cycle symmetry system, which represents a shaft-disk-blade system subjected to dry friction. Moreover, this study analyzed the effects of the tuned and mistuned contact features on the nonlinear mode characteristics. Numerical results prove that the proposed method is particularly suitable for the study of nonlinear characteristics in such nonlinear systems.
- Subjects :
- Computer science
Mechanical Engineering
Computation
Interface (computing)
Mode (statistics)
02 engineering and technology
01 natural sciences
Symmetry (physics)
Mechanical system
Nonlinear system
Harmonic balance
020303 mechanical engineering & transports
0203 mechanical engineering
Control theory
Nonlinear parameters
0103 physical sciences
010301 acoustics
Subjects
Details
- ISSN :
- 20950241 and 20950233
- Volume :
- 15
- Database :
- OpenAIRE
- Journal :
- Frontiers of Mechanical Engineering
- Accession number :
- edsair.doi...........59371bf4526c699209b1f07d2557e2f8