METHOD OF DETECTING AND LOCALIZING PARTIAL ROTOR-STATOR RUBBING DURING THE OPERATION OF A TURBINE
    8.
    发明申请
    METHOD OF DETECTING AND LOCALIZING PARTIAL ROTOR-STATOR RUBBING DURING THE OPERATION OF A TURBINE 有权
    在涡轮机运行期间检测和定位部分转子 - 定子橡胶的方法

    公开(公告)号:US20140230555A1

    公开(公告)日:2014-08-21

    申请号:US14103514

    申请日:2013-12-11

    IPC分类号: G01M13/04

    摘要: The rotor of the turbine is monitored by sensors of the rotor vibrations arranged in at least one plane of measuring perpendicular to the axis of the rotor and by sensors of the absolute vibrations of the bearings. When using this method of processing, synchronically digitalized signals of the sensors of rotor vibrations, first the arithmetic mean of the individual harmonic bands in full spectrum in the frequency domain is calculated, by which means the information about the subharmonic components and their multiples in the full spectrum of these signals is transferred into the frequency band −1X to 1X, at the same time is by the calculation of the median estimated the level of the signal noise, with which individual frequency bands of the full spectrum are encumbered, and which is subtracted from the amplitudes in the individual frequency bands of full spectrum of the signals of the sensors.

    摘要翻译: 涡轮机的转子由垂直于转子的轴线的至少一个测量平面中的转子振动的传感器以及轴承的绝对振动的传感器来监测。 当使用这种处理方法时,转子振动传感器的同步数字化信号,首先计算频域全频谱中各个谐波频带的算术平均值,这意味着关于次谐波分量及其倍数的信息 这些信号的全频谱被传送到频带-1X到1X,同时是通过计算中值估计的信号噪声的电平,全频谱的各个频带被保留,并且是 从传感器信号的全谱的各个频带的振幅中减去。

    METHOD OF MANUFACTURING HYBRID PARTS CONSISTING OF METALLIC AND NON-METALLIC MATERIALS AT HIGH TEMPERATURE

    公开(公告)号:US20210237417A1

    公开(公告)日:2021-08-05

    申请号:US16802316

    申请日:2020-02-26

    发明人: Bohuslav Masek

    IPC分类号: B32B37/06 B32B37/08

    摘要: This invention generally relates to a method of manufacturing hybrid parts comprising metallic and non-metallic materials at high temperature. During the method, a hollow metallic feedstock heated to a temperature in the austenite region may be placed in a die and filled with a non-metallic material in a viscous condition, after which the feedstock in the die is formed and then controlled-cooled to cause hardening of the non-metallic material in the region of contact between the metallic and non-metallic material. Afterwards, the semi-finished product is removed from the die and cooled to room temperature. The rate of cooling may be adjusted to generate compressive stress in the surface layer of the non-metallic material, which reduces the risk of cracking.