| 干摩擦阻尼叶片多谐波激振下的共振响应 |
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| 引用本文： | 丁千,黄毅,孙艳红.干摩擦阻尼叶片多谐波激振下的共振响应[J].振动与冲击,2005,24(4):103-105. |
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| 作者姓名： | 丁千 黄毅 孙艳红 |
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| 作者单位： | 天津大学力学系,天津,300072 |
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| 基金项目： | 国家自然科学基金资助项目(编号:10272078) |
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| 摘 要： | 研究了汽轮机干摩擦阻尼器叶片在多谐波(第一、二阶低频和第一阶高频)激励作用下的振动。用平均法求出系统低阶谐波共振的稳态响应方程;分析了阻尼器参数与响应之间的关系,特别是初压力对抑制叶片共振振动的效果。所得结论对工程应用有一定指导意义。
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| 关 键 词： | 干摩擦 叶片 共振 |
| 收稿时间： | 01 28 2004 12:00AM |
| 修稿时间： | 05 20 2004 12:00AM |
RESONANCES OF DRY FRICTION DAMPED TURBINE BLADES UNDER MULTI-FREQUENCIES EXCITATION |
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| DING Qian,Huang Yi,Sun Yanhong.RESONANCES OF DRY FRICTION DAMPED TURBINE BLADES UNDER MULTI-FREQUENCIES EXCITATION[J].Journal of Vibration and Shock,2005,24(4):103-105. |
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| Authors: | DING Qian Huang Yi Sun Yanhong |
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| Abstract: | Resonances of dry friction damped turbine blades under multi-frequencies excitation, including the components of the first and second oders of low resonance frequencies as well as the first order of high resonance frequency, are studied. The steady-state resonance equations of the low-frequency cases are solved using the average method. The influences of the system parameters, especially the initial pressure, on the resonant response are discussed. |
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| Keywords: | dry-friction blade resonance |
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