Frequency distribution of blades in turboengines and vibration characteristics of mistuned blades

Ming Fu Liao, Da Kuan Shen

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

In this paper, the probability distribution of blade frequencies is given as a Gaussian distribution approximately. The computations for comparing and simulating the effects of blade mistune on blade-disk vibration are made, which show that in general cases, blade mistune will cause the blade vibration amplitude to increase 20-30%. If the frequency difference of the blades on one stage is within ± 2%, the effect of mistune on the blade vibration will not be obvious . It is suggested that the blades can be divided into groups for mounting them and the frequency difference in each group not exceeds a certain range, for example, ± 2%.

源语言英语
主期刊名Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Process Industries; Technology Resources; General
出版商American Society of Mechanical Engineers (ASME)
ISBN(电子版)9780791879450
DOI
出版状态已出版 - 1985
活动ASME 1985 Beijing International Gas Turbine Symposium and Exposition, IGT 1985 - Beijing, 中国
期限: 1 9月 19857 9月 1985

出版系列

姓名Proceedings of the ASME Turbo Expo
4

会议

会议ASME 1985 Beijing International Gas Turbine Symposium and Exposition, IGT 1985
国家/地区中国
Beijing
时期1/09/857/09/85

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