F213 BASIC STUDY OF RANDOM VIBRATION FOR TURBINE BLADE STRUCTURES(Steam Turbine-4)

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概要

• 論文の詳細を見る

• This paper descibes a computational method of random vibration of the turbine blades using the multi-degree of freedom spectrum analysis. This computational method is applied to the cyclic symmetry method to the spectral analysis and enabled a large-scale calculation of the steam turbine blades. In this computational method, it especially focused on the grouped blade structure. The grouped blade structure has the feature from which the response of two or more modes is calculated with one harmonic number. Also, the random vibration examination by a simple blade model was performed. Both modal damping and random excitation PSD (Power Spectrum Density) are the most important factors of the calculation. The experimental results demonstrated that the random vibration response of the turbine blade can be estimated by this calculation method.

• 一般社団法人日本機械学会の論文
• 2009-11-16

著者

• Kudo Takeshi

  Energy And Environmental Systems Lab. Hitachi Ltd.

• Saito Eiji

  Thermal Power Business Dept. Hitachi Ltd.

• YAMASHITA Yutaka

  Energy and Environmental Systems Lab., Hitachi, Ltd.

• Yamashita Yutaka

  Energy And Environmental Systems Lab. Hitachi Ltd.

関連論文

• F202 PROGRESS OF STEAM TURBINE DEVELOPMENT THAT ACHIEVES 700℃ CLASS ADVANCED ULTRA SUPER CRITICAL STEAM CONDITION(Steam Turbine-1)
• F201 The Status of Advanced USC Technology Development in Japan(Steam Turbine-1)
• F213 BASIC STUDY OF RANDOM VIBRATION FOR TURBINE BLADE STRUCTURES(Steam Turbine-4)

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