2249. Analytical model for nonlinear vibration of flexible rotor system

Min Wu; Shengbo Yang; Dongjiang Han; Daren Yu; Jinfu Yang

doi:10.21595/jve.2016.17441

2249. Analytical model for nonlinear vibration of flexible rotor system

Min Wu^*
, Shengbo Yang
, Dongjiang Han
, Daren Yu
, Jinfu Yang

^*Corresponding author for this work

School of Energy Science and Engineering, Harbin Institute of Technology
CAS - Institute of Engineering Thermophysics

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

An analytical model is proposed to analyze a series of typical nonlinear behaviors of flexible rotor system, such as resonance, oscillation, whirl and whip. The model is constructed by introducing a defined nonlinear scale factor ε, nonlinear stiffness and nonlinear damping. Based on multi-scale method, the analytical solutions of steady-state and transient-state are derived, and the nonlinear natural frequency and Frequency Response Equation (FRE) are obtained. A transient time scale factor t₁ is defined to reflect the transient-state influence on steady-state solution. The experimental result also verifies the rationality and validity of the analytical model and the analytical solutions.

Original language	English
Pages (from-to)	4980-4994
Number of pages	15
Journal	Journal of Vibroengineering
Volume	18
Issue number	8
DOIs	https://doi.org/10.21595/jve.2016.17441
State	Published - Dec 2016
Externally published	Yes

Keywords

Analytical model
Analytical solution
Flexible rotor system
Nonlinear scale factor
Nonlinear vibration

Access to Document

10.21595/jve.2016.17441

Cite this

@article{c38e820dda624a419b9c427d5acb5043,

title = "2249. Analytical model for nonlinear vibration of flexible rotor system",

abstract = "An analytical model is proposed to analyze a series of typical nonlinear behaviors of flexible rotor system, such as resonance, oscillation, whirl and whip. The model is constructed by introducing a defined nonlinear scale factor ε, nonlinear stiffness and nonlinear damping. Based on multi-scale method, the analytical solutions of steady-state and transient-state are derived, and the nonlinear natural frequency and Frequency Response Equation (FRE) are obtained. A transient time scale factor t1 is defined to reflect the transient-state influence on steady-state solution. The experimental result also verifies the rationality and validity of the analytical model and the analytical solutions.",

keywords = "Analytical model, Analytical solution, Flexible rotor system, Nonlinear scale factor, Nonlinear vibration",

author = "Min Wu and Shengbo Yang and Dongjiang Han and Daren Yu and Jinfu Yang",

note = "Publisher Copyright: {\textcopyright} JVE INTERNATIONAL LTD.",

year = "2016",

month = dec,

doi = "10.21595/jve.2016.17441",

language = "英语",

volume = "18",

pages = "4980--4994",

journal = "Journal of Vibroengineering",

issn = "1392-8716",

publisher = "EXTRICA",

number = "8",

}

TY - JOUR

T1 - 2249. Analytical model for nonlinear vibration of flexible rotor system

AU - Wu, Min

AU - Yang, Shengbo

AU - Han, Dongjiang

AU - Yu, Daren

AU - Yang, Jinfu

N1 - Publisher Copyright: © JVE INTERNATIONAL LTD.

PY - 2016/12

Y1 - 2016/12

N2 - An analytical model is proposed to analyze a series of typical nonlinear behaviors of flexible rotor system, such as resonance, oscillation, whirl and whip. The model is constructed by introducing a defined nonlinear scale factor ε, nonlinear stiffness and nonlinear damping. Based on multi-scale method, the analytical solutions of steady-state and transient-state are derived, and the nonlinear natural frequency and Frequency Response Equation (FRE) are obtained. A transient time scale factor t1 is defined to reflect the transient-state influence on steady-state solution. The experimental result also verifies the rationality and validity of the analytical model and the analytical solutions.

AB - An analytical model is proposed to analyze a series of typical nonlinear behaviors of flexible rotor system, such as resonance, oscillation, whirl and whip. The model is constructed by introducing a defined nonlinear scale factor ε, nonlinear stiffness and nonlinear damping. Based on multi-scale method, the analytical solutions of steady-state and transient-state are derived, and the nonlinear natural frequency and Frequency Response Equation (FRE) are obtained. A transient time scale factor t1 is defined to reflect the transient-state influence on steady-state solution. The experimental result also verifies the rationality and validity of the analytical model and the analytical solutions.

KW - Analytical model

KW - Analytical solution

KW - Flexible rotor system

KW - Nonlinear scale factor

KW - Nonlinear vibration

UR - https://www.scopus.com/pages/publications/85019984374

U2 - 10.21595/jve.2016.17441

DO - 10.21595/jve.2016.17441

M3 - 文章

AN - SCOPUS:85019984374

SN - 1392-8716

VL - 18

SP - 4980

EP - 4994

JO - Journal of Vibroengineering

JF - Journal of Vibroengineering

IS - 8

ER -

2249. Analytical model for nonlinear vibration of flexible rotor system

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this