Modelling and vibration of composite thin-walled rotating blades featuring extension-twist elastic coupling

S-Y. Oh; L. Librescu; O. Song

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Modelling and vibration of composite thin-walled rotating blades featuring extension-twist elastic coupling

机译：拉伸-扭转弹性耦合的复合薄壁旋转叶片的建模与振动

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The modelling and vibration of composite thin-walled pre-twisted rotating blades of non-uniform cross-sections along their span, and featuring the extension-twist elastic coupling are addressed. To this end, Hamilton's principle is used to derive the equations of motion and the associated boundary conditions. In addition to the pretwist and warping restraint, the exotic properties of advanced composite material are used, and the efficiency of implementing the tailoring technique toward the enhancement, without weight penalties, of the vibratory behaviour of rotating blades is illustrated. Comparisons between the predictions by both Wagner's and Washizu's approaches are presented, and pertinent conclusions regarding the implications of the various geometrical and physical characteristics of the blade are outlined.

机译：讨论了截面不均匀的复合薄壁预扭转旋转叶片沿其跨度的建模和振动，并具有延伸扭转弹性耦合。为此，使用汉密尔顿原理导出运动方程和相关的边界条件。除了预扭转和翘曲约束之外，还使用了高级复合材料的奇异特性，并说明了实施定制技术以提高旋转叶片的振动性能而无重量损失的效率。提出了Wagner方法和Washizu方法的预测结果之间的比较，并概述了有关叶片各种几何和物理特性的含义的相关结论。

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《The Aeronautical Journal》 |2005年第1095期|p.233-246|共14页
作者
S-Y. Oh; L. Librescu; O. Song;
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Department of Engineering Science and Mechanics Virginia Polytechnic Institute and State University Blacksburg, VA, USA;

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正文语种 eng
中图分类航空;
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专利

1. Implication of conservative and gyroscopic forces on vibration and stability of an elastically tailored rotating shaft modeled as a composite thin-walled beam [J] . Ohseop Song, Nam-Heui Jeong, Liviu Librescu The Journal of the Acoustical Society of America . 2001,第3期

机译：保守和陀螺力对以复合薄壁梁为模型的弹性定制旋转轴的振动和稳定性的影响
2. VIBRATION AND STABILITY OF PRETWISTED SPINNING THIN-WALLED COMPOSITE BEAMS FEATURING BENDING-BENDING ELASTIC COUPLING [J] . O. Song, N.-H. Jeong, L. Librescu Journal of Sound and Vibration . 2000,第3期

机译：预应力细壁组合梁的抗弯弯曲弹性耦合的振动和稳定性
3. Dynamic behavior of elastically tailored rotating blades modeled as pretwisted thin-walled beams and incorporating adaptive capabilities [J] . Ohseop Song, Sang-Yong Oh, Liviu Librescu International Journal of Rotating Machinery . 2002,第1期

机译：弹性剪裁的旋转叶片的动态行为建模为预扭薄壁梁并具有自适应功能
4. THIN-WALLED ROTATING BLADES MADE OF FUNCTIONALLY GRADED MATERIALS: THERMO-ELASTIC MODELING AND VIBRATION ANALYSIS [C] . Sang-Yong Oh, Liviu Librescu, Ohseop Song International Congress on Thermal Stresses and Related Topics . 2003

机译：薄壁旋转刀片由功能分级材料制成：热弹性建模和振动分析
5. Extension-twist coupling optimization in composite rotor blades. [D] . Ozbay, Serkan. 2005

机译：复合材料转子叶片中的拉伸-扭转耦合优化。
6. Identification of Vibration Events in Rotating Blades Using a Fiber Optical Tip Timing Sensor [O] . Dechao Ye, Fajie Duan, Jiajia Jiang, 2019

机译：使用光纤尖端定时传感器识别旋转叶片中的振动事件
7. Implication of conservative and gyroscopic forces on vibration and stability of an elastically tailored rotating shaft modeled as a composite thin-walled beam [O] . Ohseop Song, Nam-Heui Jeong, Liviu Librescu 2001

机译：保守和陀螺力量对弹性定制旋转轴的振动和稳定性的含义，其作为复合薄壁梁建模的弹性定制旋转轴
8. Vibrational behavior of adaptive aircraft wing structures modelled as composite thin-walled beams [R] . Song, O., Librescu, L., Rogers, C. A. 1992

机译：自适应飞机机翼结构的振动特性模拟为复合薄壁梁

Modelling and vibration of composite thin-walled rotating blades featuring extension-twist elastic coupling

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