Study on the Nonlinear Characteristics of a Rotating Flexible Blade with Dovetail Interface Feature
Joint Authors
Wen, Bangchun
Li, Chaofeng
Shen, Zengchuang
Zhong, Bingfu
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-05-09
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
A dynamic model is proposed in this paper for analyzing the nonlinear characteristics of a flexible blade.
The dynamical equation of motion for a rotational flexible blade in a centrifugal force field is established based on the finite element method.
A macro-stick-slip mechanical model of dry friction is established to simulate the constraint condition of the flexible blade.
The combined motion of the external excitation and friction produces a piecewise linear vibration which is actually nonlinear.
The numerical integration method is employed to calculate the vibration reduction characteristics of the nonlinear constrained rotating blade.
The results show that the nonlinear dry friction force produced by the dovetail interface plays an important role in vibration reduction.
And the effect of dry friction vibration reduction is significant when the rotating speed is slow or the friction coefficient is small.
Besides, the magnitude of external excitation also has a great impact on the state of the friction.
Therefore, some relevant experimental researches should be done in the future.
American Psychological Association (APA)
Li, Chaofeng& Shen, Zengchuang& Zhong, Bingfu& Wen, Bangchun. 2018. Study on the Nonlinear Characteristics of a Rotating Flexible Blade with Dovetail Interface Feature. Shock and Vibration،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1215284
Modern Language Association (MLA)
Li, Chaofeng…[et al.]. Study on the Nonlinear Characteristics of a Rotating Flexible Blade with Dovetail Interface Feature. Shock and Vibration No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1215284
American Medical Association (AMA)
Li, Chaofeng& Shen, Zengchuang& Zhong, Bingfu& Wen, Bangchun. Study on the Nonlinear Characteristics of a Rotating Flexible Blade with Dovetail Interface Feature. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1215284
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215284