发明名称 |
ROTATING BODY PROVIDED WITH BLADES |
摘要 |
A rotating body includes a rotating body core, and a plurality of blades provided at an outer or inner circumference of the rotating body core at equal intervals in a circumferential direction, and connected circumferentially via an annular connection portion provided separately from the rotating body core. A resonance frequency under a two nodal diameter number mode of the rotating body is lower than or equal to a rotational secondary harmonic frequency with respect to a rated rotation speed. Where N d represents an order of a maximum mistuned component among order components of circumferential distribution of mass, rigidity or natural frequency of the blades, arrangement of the blades satisfies N d ‰¥ 5, and has order components each having ratio less than 1/2, in which the ratio is obtained by dividing the order component by the magnitude of the component of the order N d . |
申请公布号 |
EP3012406(A4) |
申请公布日期 |
2017.03.15 |
申请号 |
EP20140814030 |
申请日期 |
2014.06.17 |
申请人 |
Kawasaki Jukogyo Kabushiki Kaisha |
发明人 |
TANAKA, Ryozo;TAMAI, Ryoji;YAMAMOTO, Toshiyuki;SATO, Yoshichika;SAKANO, Yoshinobu |
分类号 |
F01D5/16;F01D5/22;F01D5/26;F01D25/00 |
主分类号 |
F01D5/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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