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首页> 外文OA文献 >The dynamic characteristics of a turbo-rotor simulator supported on gas-lubricated foil bearings. Part 1: Response to rotating imbalance and unidirectional excitation
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The dynamic characteristics of a turbo-rotor simulator supported on gas-lubricated foil bearings. Part 1: Response to rotating imbalance and unidirectional excitation

机译：气体润滑箔轴承支撑的涡轮转子模拟器的动态特性。第1部分：对旋转不平衡和单向激励的响应

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摘要

A sixteen-inch rotor, weighing approximately twenty-one pounds, was supported by air-lubricated foil bearings. In physical size and in mass distribution, the rotor closely matched that of an experimental Brayton cycle turboalternator unit. The rotor was stable in both vertical horizontal attitudes at speeds up to 50,000 rpm. A detailed description of the experimental apparatus and of the foil bearing design are given. The paper contains data on response of the rotor to rotating imbalance, symmetric and asymmetric, and to excitation by means of a vibrator (shake table). It is concluded that the gas-lubricated foil bearing suspension is free from fractional frequency whirl and suffers no loss of load capacity when excited at frequency equal to half the rotational speed. In contrast to rigid gas bearings, the foil bearing imposes no stringent requirements with respect to dimensional tolerances, cleanliness, or limitations of journal motion within the narrow confines of bearing clearance.
机译：空气润滑的箔片轴承支撑着一个重约21磅的16英寸转子。在物理尺寸和质量分布上，转子与实验性布雷顿循环涡轮发电机的转子紧密匹配。在高达50,000 rpm的速度下，转子在两个垂直水平姿态下均保持稳定。给出了实验设备和箔轴承设计的详细描述。本文包含有关转子对旋转不平衡（对称和不对称）以及通过振动器（振动台）进行激励的响应的数据。结论是，气体润滑的箔轴承悬架没有分数频率涡动，并且在等于旋转速度一半的频率激励时，没有负载能力的损失。与刚性气体轴承相比，金属箔轴承在狭窄的轴承间隙范围内，对尺寸公差，清洁度或轴颈运动的限制没有严格要求。

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    Licht L.;

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  • 年度 1970
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