The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit
later.
We apologize for any inconvenience caused
NONLINEAR VIBRATION CHARACTERISTICS OF SHROUDED BLADE FOR CYLINDRICAL PANEL
Author(s): LI Hong-ying1, 2, XIE Li-yang1, GUO Xing-hui2
Pages: 340-
347
Year: 2013
Issue:
2
Journal: Engineering Mechanics
Keyword: 壳板; 凸肩叶片; 非线性; 摩擦; 响应;
Abstract: 以凸肩叶片为研究对象,应用Donnell’s简化壳理论建立模型的非线性振动方程,考虑了几何非线性、阻尼、凸肩接触面正压力、摩擦力等因素。采用Galerkin法将振动微分方程离散到模态坐标上,分别应用数值法和近似解析法对方程组求解,得到系统的频率响应曲线,并讨论了系统周期解的稳定性。结果表明,由于凸肩接触面之间摩擦力方向周期性改变,导致系统的振动特性产生不连续性,以摩擦力为正、负方向分别绘制一条频率响应曲线。则随着摩擦力方向T/4周期变换一次,系统的振动也以T/4为周期在两条频率响应曲线上来回跳跃,从而有效抑制叶片的振动响应,提高叶片使用的安全性。
Citations
- 李红影,谢里阳,郭星辉. 壳板叶片的固有特性分析 [J]. 东北大学学报(自然科学版) .
2011(11)
- 王延庆,郭星辉,梁宏琨,李健,金乘武. 凸肩叶片的非线性振动特性与运动分岔 [J]. 力学学报 .
2011(04)
- 李健,郭星辉,魏伟明. 组合凸肩叶片的固有特性分析 [J]. 工程力学 .
2007(08)
- 洪杰,史亚杰,刘书国,朱梓根. 带凸肩叶片非旋转状态减振特性试验 [J]. 北京航空航天大学学报 .
2006(10)
- 郝燕平,朱梓根. 带摩擦阻尼的叶片响应求解方法 [J]. 航空学报 .
2001(05)
- 徐自力,李辛毅,袁奇,孟庆集. 用改进的摩擦模型计算带阻尼结构叶片的响应 [J]. 西安交通大学学报 .
1998(01)
- 任勇生,朱德懋. 带凸肩叶片的稳态响应计算及其阻尼减振分析 [J]. 振动工程学报 .
1994(02)
- Griffin J H,Sinha A. The Interaction Between Mistuning and Friction in the Forced Response of Bladed Disk Assemblies .
ASME Journal of Engineering for Gas Turbines and Power
. 1985
- Berthilier M,Dupont C,Mondai R,et al. Blades Forced Response Analysis with Friction Dampers .
Transactions of ASME Journal of Vibration and Acoustics
. 1998
- A.W. Leissa,J.K.Lee,A.J.Wang. Rotating Blade Vibration Analysis Using Shel1s .
Journal of Engineering
. 1982
- Leissa A W,Lee J K,Huang A J. Vibrations of twistedrotating blades .
ASME J Vib Acoust Stress ReliabilityDes
. 1984
- Young-Jung Kee,Ji-Hwan Kim. Vibration character-istics of initially twisted rotating shell type compositeblades .
Composite Structures
. 2004
- Leissa A W,Ewing M S. Comparison of beam and shelltheories for the vibrations of thin turbo machinery blades .
Journal of Engineering for Power
. 1983
- Dokainish M A,Rawtani S. Vibration analysis ofrotating cantilevered plates .
International Journal for Numerical Methods in Engineering
. 1971
- Szwedowicz J,Visser R,Sextro W. On nonlinear forcedvibration of shrouded turbine blades .
Journal of Turbomachinery
. 2008
- Ender Ci ero lu,H Nevzat zgüven. Nonlinearvibration analysis of bladed disks with dry frictiondampers .
Journal of Sound and Vibration
. 2006
- Huang B W,Kuang J H. Variation in the stability of arotating blade disk with a local crack defect .
Journal of Sound and Vibration
. 2006