DESIGN AND EXPERIMENT OF 400 , 000 RPM HIGH SPEED ROTOR AND BEARINGS FOR 500 W CLASS MICRO GAS TURBINE GENERATOR
DESIGN AND EXPERIMENT OF 400 , 000 RPM HIGH SPEED ROTOR AND BEARINGS FOR 500 W CLASS MICRO GAS TURBINE GENERATOR
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500 W级微型燃气轮发电机400 、 000 RPM高速转子及轴承设计与试验
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
S. Ham
中科院分区：
文献类型：
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作者：
C. H. Park;S. Choi;S. Ham
500W级微型燃气轮机(MTG)正在研制中。它的设计自持转速为200,000转/分，发电速度为400,000转/分。它由电机/发电机、轴、轴承、透平、压气机叶轮、燃烧器和回热器等组成。转子由Inconel 718轴和Sm2Co17磁体组成，并制造了小型气箔轴承来支撑高速转子。为了评估转子和轴承在400,000转/分下的振动，设计并制造了高速电机和电机试验台。到目前为止，我们使用动力试验台达到了28万转/分的转速，小规模的改造正在进行中。在这项研究中，我们介绍了工作转速为400,000转/分的转子和轴承的设计过程及其转子振动等实验结果。
500W class Micro gas turbine generator (MTG) is under development. It is designed to operate with the self-sustaining speed of 200,000rpm and the generating speed of 400,000rpm. It is composed of motor/generator, shaft, bearings, turbine, compressor impeller, combustor and recuperator and so on. The rotor is composed of inconel 718 shaft and Sm2Co17 magnet, and the small-sized air foil bearings are fabricated to support the high speed rotor. To evaluate the vibration of rotor and bearings at 400,000 rpm, high speed motor and motoring test rig are designed and fabricated. So far, we achieved the rotating speed of 280,000 rpm using the motoring test rig and small retrofit is ongoing. In this study, we present the design procedure of rotor and bearings for the operating speed of 400,000 rpm and its experimental results such as rotor vibrations.