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| 涡轮盘结构模态分析 | |
| 引用本文： | 何泽夏,李锋,孙秦,谭永华.涡轮盘结构模态分析[J].机械强度,2006,28(6):927-930. |
| 作者姓名： | 何泽夏 李锋 孙秦 谭永华 |
| 作者单位： | 1. 西北工业大学,航空学院,西安,710072 2. 陕西动力机械设计研究所,西安,710100 3. 航天推进技术研究院,西安,710100 |
| 摘 要： | 某火箭发动机涡轮盘在热试车中出现严重的裂纹故障,为确定故障原因,分析涡轮盘在高温及高转速下的模态特性.对比热试车涡轮泵试验数据,分析结果表明,改进前结构存在与转速6倍频耦合的涡轮盘模态,而改进后结构明显避开了耦合模态.同时,分析结果为后续结构动态响应研究提供准确的输入数据. |
| 关 键 词： | 涡轮泵 涡轮盘 模态特性 模态分析 故障 |
| 收稿时间： | 2005-11-10 |
| 修稿时间： | 2005-11-102006-01-11 |
STRUCTURAL MODAL ANALYSIS OF TURBINE DISK |
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| HE ZeXia,LI Feng,SUN Qin,TAN YongHua.STRUCTURAL MODAL ANALYSIS OF TURBINE DISK[J].Journal of Mechanical Strength,2006,28(6):927-930. | |
| Authors: | HE ZeXia LI Feng SUN Qin TAN YongHua |
| Abstract: | Fatigue cracking failure of turbine disk was found in hot fires tests of XX rocket engine. In order to determine failure causes, structural modal characteristics were analyzed in high temperature and high rotating speed environments. By comparing the calculated results with the test data of turbo pump in hot fires, it is found that one of modal frequencies of the original structure coupled with the six times the frequency of the rotating speed. After redesign this kind of coupled modal has been avoided in the improved structure. Meanwhile, the re-analyses results can provide exact input data for the succeeding dynamical response study. |
| Keywords: | Turbo pmnp Turbine disk Modal characteristics Modal analysis Failure |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
