期刊
JOURNAL OF SOUND AND VIBRATION
卷 432, 期 -, 页码 50-64出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jsv.2018.06.022
关键词
Viscoelastic airfoil model; Fractional order; Averaging technique; Amplitude-frequency relation; Sliding mode control; Vibration suppression
资金
- NSF of China [11572247, 11702216]
- Seed Foundation of Innovation and Creation for Graduate Students in NPU [ZZ2018027]
This paper aims to investigate the active vibration suppression of a fractional two-degreeof-freedom viscoelastic airfoil (TDOFVA) model with a harmonic external force by means of the sliding mode control (SMC) scheme. The viscoelastic behavior is described as a fractional-order derivative, leading to a new fractional TDOFVA model. Subsequently, an averaging technique is extended to derive the amplitude-frequency relations, and its correctness is verified by Monte Carlo simulations. In addition, effects of the system parameters on the dynamics are explored. To achieve a vibration suppression, we convert the TDOFVA system into a series of fractional-order differential equations. Then, a SMC strategy is employed, in which a fractional-order integral sliding surface is presented and asymptotical stability analysis of the SMC is performed. Several numerical results are presented to illustrate the performances of the proposed SMC scheme, which indicate that the given SMC methodology is effective to realize a vibration suppression of the TDOFVA model. (C) 2018 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据