| 自带冠叶片碰撞减振研究 |
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| 引用本文： | 徐大懋,李录平,须根发,侯绍华,汪燕.自带冠叶片碰撞减振研究[J].电工标准与质量,2007(1). |
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| 作者姓名： | 徐大懋 李录平 须根发 侯绍华 汪燕 |
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| 作者单位： | 中国广东核电集团公司 深圳518124(徐大懋)，长沙理工大学 湖南长沙410076(李录平，汪燕)，哈尔滨工业大学 哈尔滨150001(须根发)，哈尔滨汽轮机厂 哈尔滨150046(侯绍华) |
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| 摘 要： | 建立自带冠叶片碰撞减振的力学模型和数学模型,用理论方法和试验方法研究碰撞减振效果与叶片结构参数之间的关系.研究结果表明,自带冠叶片碰撞减振具有很好的减振效果,其动应力水平与叶片负荷的关系很小,适合于中短叶片.并提出自带冠叶片的设计方法和可靠性准则,考虑非线性的影响.
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| 关 键 词： | 汽轮机 自带冠叶片 碰撞减振 安全准则 |
Research on impact damping of integrally shrouded blades |
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| XU Da-mao,LI Lu-ping,XU Gen-fa,HOU Shao-hua,WANG Yan.Research on impact damping of integrally shrouded blades[J].Journal of Changsha University of Electric Power(Natural Science Edition),2007(1). |
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| Authors: | XU Da-mao LI Lu-ping XU Gen-fa HOU Shao-hua WANG Yan |
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| Affiliation: | XU Da-mao1,LI Lu-ping2,XU Gen-fa3,HOU Shao-hua4,WANG Yan2 |
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| Abstract: | Mechanical and mathematical models of impact damping for integrally shrouded blade(ISB) are established in this paper.The relationship between damping effect and blade structure parameters is investigated with theoretical analysis and testing.Research results show that the damping effect and related dynamical stress is slightly sensitive to the blade load.The impact damping of ISB is very effective in controlling dynamical stress,especially for shorter blades.The design procedures and security criterion of ISB are also presented with consideration of the non-linear influence. |
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| Keywords: | Steam turbine Integrally shrouded blade Impact damping Security criterion |
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