Vibrational Response Analysis of Mistuned Bladed Disk
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概要
- 論文の詳細を見る
When calculating the resonant response of bladed turbine disks, it has been expedient to assume that all blades on a given disk are identical. This leads to the prediction that all blades experience the same amplitude of displacement and stress when excited by forces harmonically related to the rotor speed. However, it has been shown experimentally that significant variations in these amplitudes occur for different blades on the same disk. These variations arise due to the effects of mistuning, which refers to small differences in blade characteristics. In this paper, effects of mistuning for free-standing blades and integral shroud blades are studied by means of Monte Carlo simulation and sensitivity analysis. It is found that weakly coupled systems with low damping are very sensitive to mistuning. Also, the validity of the lumped model used in this paper is examined by comparing the calculated results with experimental data.
- 一般社団法人日本機械学会の論文
- 1994-03-15
著者
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FUJITA Katsuhisa
Takasago Research and Development Center, Mitsubishi Heavy Industries, Ltd.
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Fujita K
Department Of Electrical Engineering Kyushu Institute Of Technology
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Fujita K
Gifu National Coll. Technol. Gifu Jpn
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Fujita Kazuhisa
Ion Engineering Research Institute Corporation
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Fujita K
Takasago R & D Center Mitsubishi Heavy Industries Ltd.
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Fujita Katsuhisa
Takasago R & D Center Mitsubishi Heavy Industries Ltd.
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Fujita K
Atr Adaptive Communications Research Laboratories
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Kaneko Yasutomo
Takasago R & D Center, Mitsubishi Heavy Industries, Ltd.
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Mase Masataka
Takasago R & D Center, Mitsubishi Heavy Industries, Ltd.
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Nagashima Toshio
Mitsubishi Research Institute, Inc.
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Mase M
Mitsubishi Heavy Ind. Ltd. Takasago Jpn
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Kaneko Y
Mitsubishi Heavy Ind. Ltd. Takasago Jpn
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Nagashima Toshio
Mitsubishi Research Institute Inc.
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Fujita Katsuhisa
Takasaco Technical Institute Technical Headquarters Mitsubishi Heavy Industries Ltd.
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