Characteristics of Natural Frequencies of Steam Turbine Blades : 2nd Report, Influence of Disk on Vibration of Grouped Blades

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概要

• 論文の詳細を見る

• A method of calculating the natural frequencies of the axial vibrations of steam turbine blades and thick disks is presented, and the natural frequencies of blades are calculated and compared with the measured values. It is found that the difference between the calculated and measured values is within 10 per cent. The natural frequencies become higher at about 30 per cent depending on the defaults of the rotary inertia and the shear deformation. The effect of rotary inertia is small, while that of shear deformation is large. The relationship between the number of nodal diameters and natural frequencies is made clear by calculation.

• 一般社団法人日本機械学会の論文

著者

• Shiga Motohiro

  Mechanical Engineering Research Laboratory Hitachi Ltd.

関連論文

• Prevention of Torsional Vibration in Fan Motor Shaft Systems with Multiblade Fans : 3rd Report: Method of Frequency Control using Correction Weights
• Natural Frequencies of Stator Core of Induction Motor : 1st Report, Characteristics of Radial Vibration
• Characteristics of Natural Frequencies of Steam Turbine Blades : 1st Report, Relationship on Vibration between Grouped Blades and Disk
• Vibration Characteristics of Grouped Steam Turbine Blades
• Characteristics of Natural Frequencies of Steam Turbine Blades : 3rd Report, Vibration of Bound Blades on Entire Disk Circumference
• Characteristics of Natural Frequencies of Steam Turbine Blades : 2nd Report, Influence of Disk on Vibration of Grouped Blades
• Natural Frequencies of Stator Core of Induction Motor : 2nd Report, Analysis of Radial Natural Frequencies

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