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| 缘板及叶冠间的接触状况及其对叶片位移和应力的影响 | |
| 引用本文： | 尹泽勇,陆波,林方良,赵伟炎. 缘板及叶冠间的接触状况及其对叶片位移和应力的影响[J]. 航空学报, 1991, 12(7): 420-422 |
| 作者姓名： | 尹泽勇 陆波 林方良 赵伟炎 |
| 作者单位： | 南华动力机械研究所(尹泽勇，陆波，林方良)，南华动力机械研究所(赵伟炎) |
| 摘 要： | 1.计算方法及其实验验证 本文用分析法见文献[1],这里以WS9高压二级涡轮转子叶片(简称WS9叶片)为例来说明方法的特点。该转子轮盘上均匀安装110片叶片,组成具有循环对称接触结构的叶片环,有接触表面的循环对称结构。据此,可将图1所示的一片叶片取作基本段分析,但同时必须在该叶片一般有限元刚度方程中引入缘板及叶冠的循环对称接触表面(叶冠的A1侧面与A2侧面,以及缘板的B1侧面与B2侧面)处的循环对称接触 |
| 关 键 词： | 带冠叶片 循环对称接触 有限元应力分析 |
CONTACT STATES OF PLATFORM AND SHROUD AND THEIR INFLUENCE ON DISPLACEMENT AND STRESS OF A BLADE |
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| Nanhua Powerplant Research Institute Yin Zeyong,Lu Bo,Lin Fangliang and Zhao Weiyan. CONTACT STATES OF PLATFORM AND SHROUD AND THEIR INFLUENCE ON DISPLACEMENT AND STRESS OF A BLADE[J]. Acta Aeronautica et Astronautica Sinica, 1991, 12(7): 420-422 | |
| Authors: | Nanhua Powerplant Research Institute Yin Zeyong Lu Bo Lin Fangliang Zhao Weiyan |
| Affiliation: | Nanhua Powerplant Research Institute |
| Abstract: | A tip shrouded blade is analyzed by using a specially developed cyclic symmetric contact finite element technique to determine the contact states of the adjacent tip shrouds and the adjacent platforms, and to study the influence of the contact states on the displacement and stress field of the blade. The technique, and the computer program used here are verified by comparing the computed strains with the measured strains for a test blade. As an example, then the second stage rotor blade of WS9 HP turbine is analyzed under 16 initial clearance / load cases. Finally, some helpful conclusions for design of a tip shrouded blade are drawn. |
| Keywords: | shrouded blade cyclic symmetric contact finite element stress analysis. |
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