发明名称 |
STRUCTURE WITH ROTOR AND FIXED TURBULENCE SOURCE, AND METHOD OF REDUCING VIBRATION OF STRUCTURE |
摘要 |
PROBLEM TO BE SOLVED: To provide a method of reducing the vibration of a structure with at least one rotor 101<SB>j</SB>and a set of fixed turbulence sources 102<SB>j</SB>for vibrating the rotor to generate turbulence in a fluid flow 11. SOLUTION: The method comprises steps of: including the non-uniform angle distribution of the fixed turbulence sources to reduce the amplitude of excitation received by the rotor; determining a first signal whose Fourier transform corresponds to the frequency spectrum of the excitation when the fixed turbulence sources are distributed along predetermined uniform angle distribution; correcting the first signal into a second signal adaptable to the selected angle distribution of the fixed turbulence sources, a step of calculating the Fourier transform of the second signal to determine the frequency spectrum of the excitation; calculating the response of the rotor to the excitation in accordance with the frequency spectrum of the excitation; and confirming that the maximum amplitude of the response of the rotor is obtained, in accordance with these steps. COPYRIGHT: (C)2009,JPO&INPIT
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申请公布号 |
JP2008274961(A) |
申请公布日期 |
2008.11.13 |
申请号 |
JP20080177513 |
申请日期 |
2008.07.08 |
申请人 |
SNECMA |
发明人 |
BERTHILLIER MARC;CLOAREC YVON;SEINTURIER ERIC |
分类号 |
F01D25/00;F01D5/10;F01D25/04;F04D29/54;F04D29/66;F16F15/10;F16F15/20 |
主分类号 |
F01D25/00 |
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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