NUMERICAL STUDY OF SUPERHARMONIC RESONANCES IN A MISTUNED HORIZONTAL-AXIS WIND-TURBINE BLADE-ROTOR SET

被引：0
|
作者：
Sapmaz, Ayse [1 ]
Acar, Gizem D. [2 ]
Feeny, Brian F. [1 ]
机构：
[1] Michigan State Univ, Dept Mech Engn, E Lansing, MI 48823 USA
[2] Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA
来源：
PROCEEDINGS OF THE ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, 2019, VOL 8 | 2020年
基金：
美国国家科学基金会;
关键词：
VIBRATION; STABILITY;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper is on a simplified model of an in-plane blade hub dynamics of a horizontal-axis wind turbine with a mistuned blade. The model has cyclic parametric and direct excitation due to gravity and aerodynamics. This work follows up a previous perturbation study applied to the blade equations written in the rotor-angle domain and decoupled from the hub, in which superharmonic and primary resonances were analyzed. In this work, the effects of mistuning, damping, and forcing level are illustrated. The first-order perturbation solutions are verified with comparisons to numerical simulations at superharmonic resonance of order two. Additionally, the effect of rotor loading on the rotor speed and blade amplitudes is investigated for different initial conditions and mistuning cases.
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页数：10
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