| 基于模态信息的叶盘结构失谐识别方法鲁棒性研究 |
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| 引用本文： | 王帅,王建军,李其汉.基于模态信息的叶盘结构失谐识别方法鲁棒性研究[J].航空动力学报,2010,25(5):1068-1076. |
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| 作者姓名： | 王帅 王建军 李其汉 |
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| 作者单位： | 北京航空航天大学,能源与动力工程学院,北京100191 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 为有效运用整体叶盘结构失谐识别技术,针对一种以模态信息作为输入参数的识别方法进行了鲁棒性方面的研究.推导了该方法中识别参数对各输入参数的灵敏度公式,利用灵敏度分析的结果,可以明确各个输入参数的重要程度,为实际运用中获取输入参数信息提供指导;另外也可对识别结果的准确度作进一步的分析评价,为可靠的使用该识别方法提供保障.
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| 关 键 词： | 动力学 整体叶盘 失谐 识别 降阶技术 灵敏度分析 |
| 收稿时间： | 2009/4/28 0:00:00 |
| 修稿时间： | 2009/6/27 0:00:00 |
Robustness research for mistuning identification of blisks from free response information |
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| WANG Shuai,WANG Jian-jun and LI Qi-han.Robustness research for mistuning identification of blisks from free response information[J].Journal of Aerospace Power,2010,25(5):1068-1076. |
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| Authors: | WANG Shuai WANG Jian-jun and LI Qi-han |
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| Institution: | School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | This paper presents a method for robustness investigation of mistuning identification of blisks taking free response parameters as input information. The sensitivity of identified parameters with respect to input parameters is derived, and the different importance of the input parameters could be estimated from the sensitivity analysis results. This method could help us to acquire effective input information in practice and also to further evaluate the accuracy of identified results. |
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| Keywords: | dynamics integrally bladed disk mistuning identification reduced technique sensitivity analysis |
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