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Abstract:
The
receptance method for the coupled blade bending and shaft torsion
vibration response calculation of rotating machinery is presented. It
can be used to analyze the coupled transient or stable vibration with
any number of blades. It is shown that there exists strong coupling
between the two kinds of vibration. The blade critical frequencies are
decreased while the shaft critical frequencies are increased in the
coupled system. The two kinds of vibration will be induced
simultaneously under the stable or transient electrical disturbance. The
force and moment of the blade root will reach a large peak in a short
time, which can lead to the damage of the blade.
Key words:
Blade
Botor Vibration
CLC No: TH113.1
国家自然科学基金和国家重点基础研究发展规划资助项目. Received 20001218,
received in revised form 20010228
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