Nonlinear Analysis of a Torsional Vibration of a Multidegrees-of-Freedom System With Centrifugal Pendulum Vibration Absorbers and Its Suppression
| Autor: | Junichi Kawano, Keiyu Kadoi, Masahiko Kondo, Tsuyoshi Inoue |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Physics Torsional vibration Steady state business.industry General Engineering Pendulum Resonance Structural engineering Degrees of freedom (mechanics) 01 natural sciences Vibration Nonlinear system 0103 physical sciences Physics::Atomic and Molecular Clusters Physics::Chemical Physics business 010301 acoustics Eigenvalues and eigenvectors |
| Zdroj: | Journal of Vibration and Acoustics. 140 |
| ISSN: | 1528-8927 1048-9002 |
| DOI: | 10.1115/1.4040042 |
| Popis: | Centrifugal pendulum vibration absorber (CPVA) has been used as a torsional vibration suppression device. Recently, downsizing turbotechnology is widespread and it causes a torsional vibration in the drivetrains of automobiles, and CPVA is used for torsional vibration suppression. In such cases of vibration suppression of the drive-train shaft, it should be modeled as a multi degrees-of-freedom system and considered the suppression of its multiple modes. However, most of researches on CPVA so far have focused on a one degree-of-freedom system, and the vibration analysis and its suppression of the torsional vibration caused in the multi degrees-of-freedom system has been hardly investigated. In this paper, the dynamical characteristic of torsional vibration of the multi degrees-of-freedom system with CPVAs is investigated both theoretically and experimentally. Vibration suppression mechanism of CPVA on the torsional vibration of the multi degrees-of-freedom system is studied by the eigenvalue analysis. The vibration suppression effect of CPVA on the harmonic resonances, and the occurrence of superharmonic resonances in multiple modes are observed by the numerical simulation. Then, nonlinear theoretical analyses of harmonic resonances and superharmonic resonances are performed and the vibration suppression effects of CPVA are explained. These obtained theoretical results are confirmed by experiments. |
| Databáze: | OpenAIRE |
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