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    • 4. 发明申请
    • System and method for providing vibration detection in turbomachinery
    • 在涡轮机械中提供振动检测的系统和方法
    • US20080177485A1
    • 2008-07-24
    • US11657216
    • 2007-01-24
    • Eric D. CohenJames D. Paduano
    • Eric D. CohenJames D. Paduano
    • G06F19/00G01D18/00G01P3/00
    • G01H1/006F01D21/003F05D2260/80F05D2260/96F05D2270/304G01M13/028G01P3/481
    • A system and method for providing blade vibration analysis of a turbine is provided. Generally, the system contains a non-contacting sensor capable of determining a distance or velocity of a blade, of the series of blades, in relationship to the sensor. The system also contains a tachometer capable of determining a speed of a shaft of the turbine, and a computer comprising a memory and a processor. The processor is configured by the memory to perform the steps of: processing calibration data of the turbine resulting in a processed calibration signal; processing actual condition data of the turbine, resulting in a processed actual condition signal; calculating a time dilation ratio between a calibration data tachometer window and an actual condition data tachometer window; time dilating either a calibration sensor signal or an actual condition sensor signal using the time dilation ratio, resulting in a time dilated sensor signal; rewindowing the time dilated sensor signal around a zero-crossing point of the time dilated sensor signal, resulting in a derived calibration or actual condition sensor signal; and subtracting the derived calibration or actual condition sensor signal from the processed calibration or actual condition sensor signal.
    • 提供了一种用于提供涡轮机的叶片振动分析的系统和方法。 通常,该系统包含非接触式传感器,该传感器能够与传感器相关地确定该系列叶片的叶片的距离或速度。 该系统还包括能够确定涡轮机的轴的速度的转速计,以及包括存储器和处理器的计算机。 处理器由存储器配置以执行以下步骤:处理涡轮机的校准数据,产生经处理的校准信号; 处理涡轮机的实际状况数据,产生处理后的实际状况信号; 计算校准数据转速计窗口和实际状况数据转速计窗口之间的时间扩张比; 使用时间扩张比时间扩张校准传感器信号或实际状态传感器信号,导致传感器信号的时间扩大; 在时间扩大的传感器信号的过零点周围重新开启时间扩张的传感器信号,导致导出的校准或实际状况传感器信号; 以及从所处理的校准或实际状况传感器信号中减去导出的校准或实际状况传感器信号。
    • 6. 发明授权
    • System and method for providing vibration detection in turbomachinery
    • 在涡轮机械中提供振动检测的系统和方法
    • US07509862B2
    • 2009-03-31
    • US11657216
    • 2007-01-24
    • Eric D. CohenJames D. Paduano
    • Eric D. CohenJames D. Paduano
    • G01H11/00
    • G01H1/006F01D21/003F05D2260/80F05D2260/96F05D2270/304G01M13/028G01P3/481
    • A system and method for providing blade vibration analysis of a turbine is provided. Generally, the system contains a non-contacting sensor capable of determining a distance or velocity of a blade, of the series of blades, in relationship to the sensor. The system also contains a tachometer capable of determining a speed of a shaft of the turbine, and a computer comprising a memory and a processor. The processor is configured by the memory to perform the steps of: processing calibration data of the turbine resulting in a processed calibration signal; processing actual condition data of the turbine, resulting in a processed actual condition signal; calculating a time dilation ratio between a calibration data tachometer window and an actual condition data tachometer window; time dilating either a calibration sensor signal or an actual condition sensor signal using the time dilation ratio, resulting in a time dilated sensor signal; rewindowing the time dilated sensor signal around a zero-crossing point of the time dilated sensor signal, resulting in a derived calibration or actual condition sensor signal; and subtracting the derived calibration or actual condition sensor signal from the processed calibration or actual condition sensor signal.
    • 提供了一种用于提供涡轮机的叶片振动分析的系统和方法。 通常,该系统包含非接触式传感器,该传感器能够与传感器相关地确定该系列叶片的叶片的距离或速度。 该系统还包括能够确定涡轮机的轴的速度的转速计,以及包括存储器和处理器的计算机。 处理器由存储器配置以执行以下步骤:处理涡轮机的校准数据,产生经处理的校准信号; 处理涡轮机的实际状况数据,产生处理后的实际状况信号; 计算校准数据转速计窗口和实际状况数据转速计窗口之间的时间扩张比; 使用时间扩张比时间扩张校准传感器信号或实际状态传感器信号,导致传感器信号的时间扩大; 在时间扩大的传感器信号的过零点周围重新开启时间扩张的传感器信号,导致导出的校准或实际状况传感器信号; 以及从所处理的校准或实际状况传感器信号中减去导出的校准或实际状况传感器信号。