发明名称 |
Tapered, frequency-tuned rotor for turbine flow meter |
摘要 |
A frequency-tuned turbine flow meter rotor comprises a rotor hub and a plurality of tapered rotor blades. Each of the plurality of rotor blades has a stagger angle that varies as a function of a radius measured from the hub, and a cross-sectional profile that is tapered according to a NACA airfoil design. A method for designing a frequency-tuned flow meter rotor comprises defining a cross-sectional profile, calibrating a rotor blade stagger angle, tapering the cross-sectional profile such that it characterizes an airfoil with a decreasing chord length and a decreasing relative thickness as a function of radius, and analyzing a natural oscillation frequency spectrum of the rotor with respect to a range of operationally-induced excitation frequencies.
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申请公布号 |
US2009320608(A1) |
申请公布日期 |
2009.12.31 |
申请号 |
US20070704038 |
申请日期 |
2007.02.08 |
申请人 |
PRATT & WHITNEY ROCKETDYNE, INC. |
发明人 |
MARCU BOGDAN;UBOWSKI JOHN |
分类号 |
G01F1/06 |
主分类号 |
G01F1/06 |
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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