Virtual rotor balancing in magnetic bearings
    1.
    发明授权
    Virtual rotor balancing in magnetic bearings 失效
    磁轴承中的虚拟转子平衡

    公开(公告)号:US5084643A

    公开(公告)日:1992-01-28

    申请号:US641688

    申请日:1991-01-16

    申请人: Hsiang M. Chen

    发明人: Hsiang M. Chen

    IPC分类号: F16C39/06 G01M1/20

    CPC分类号: F16C32/0444 G01M1/20

    摘要: The apparatus uses an influence coefficient calculating method to allow a rotor supported on active magnetic bearings to rotate about an inertial axis which, due to possible imbalances in the rotor, may be different from the geometric axis of the rotor, without transmitting imbalance forces to the housing of the active magnetic bearings.

    摘要翻译: 该装置使用影响系数计算方法来允许支撑在主动磁轴承上的转子围绕惯性轴旋转,该惯性轴由于转子中可能的不平衡而可能不同于转子的几何轴线,而不会将不平衡力传递到 主动磁轴承的外壳。

    Active mounts
    2.
    发明授权
    Active mounts 失效
    主动安装

    公开(公告)号:US5011108A

    公开(公告)日:1991-04-30

    申请号:US392197

    申请日:1989-08-10

    IPC分类号: F16F15/03

    CPC分类号: F16F15/03

    摘要: The present invention relates to an active mount system in which a vibration sensor such as a force gauge or an accelerometer senses vibrational forces transmitted through a resilient mount by a load such as a machine. The invention further includes a control signalling device that processes and transmits the sensed signal to a force transducer such as an electromagnet which supplies an attenuating force to the resilient mount in response to the signal.

    摘要翻译: 本发明涉及一种主动安装系统,其中诸如力量表或加速度计的振动传感器感测通过诸如机器的负载通过弹性安装件传递的振动力。 本发明还包括一个控制信号装置,该控制信号装置处理并将感测到的信号传送到诸如电磁体的力传感器,该电磁体响应于该信号向弹性支架提供衰减力。

    Velocity and imbalance observer control circuit for active magnetic
bearing or damper
    3.
    发明授权
    Velocity and imbalance observer control circuit for active magnetic bearing or damper 失效
    主动磁轴承或阻尼器的速度和不平衡观测器控制电路

    公开(公告)号:US4841184A

    公开(公告)日:1989-06-20

    申请号:US65574

    申请日:1987-06-23

    IPC分类号: F16C39/06

    CPC分类号: F16C32/0444

    摘要: "Velocity Observer" and "Imbalance Observer" circuits are used to control the journals in the magnetic field of an attractive type active magnetic bearing and/or damper. The circuits are characterized by the use of integrators rather than differential components. The velocity observer circuit uses a position feedback loop and a velocity observer feedback loop, both with variable gain, to control the levitation of the journal in the magnetic field. The imbalance observer circuit recreates the journal acceleration directly from the displacement measurement and can be used optionally on-line and off-line to suppress vibrations.

    摘要翻译: “速度观测器”和“不平衡观测器”电路用于控制吸引型主动磁轴承和/或阻尼器的磁场中的轴颈。 这些电路的特征在于使用积分器而不是差分元件。 速度观测器电路使用位置反馈回路和速度观测器反馈回路,两者都具有可变增益,以控制磁场中轴颈的悬浮。 不平衡观测器电路直接从位移测量重新创建轴颈加速度,并且可以可选地在线和离线地使用以抑制振动。

    Rotating force generator for magnetic bearings
    4.
    发明授权
    Rotating force generator for magnetic bearings 失效
    磁力轴承用旋转力发生器

    公开(公告)号:US5202824A

    公开(公告)日:1993-04-13

    申请号:US925899

    申请日:1992-08-06

    申请人: Hsiang M. Chen

    发明人: Hsiang M. Chen

    IPC分类号: F16C39/06

    CPC分类号: F16C32/0444 F16C32/0493

    摘要: The present invention relates to apparatus for stabilizing the operation of rotational machinery, particularly machinery which uses magnetic bearings. Accelerometers sense various vibrations within the machinery. The outputs of the accelerometers are analyzed by a Fast Fourier Transform algorithm and multiplied by an array of influence coefficients to calculate desired stabilizing forces to be applied to the rotating machinery. Compensating analog voltage signals are generated in accordance therewith and transmitted to magnetic control coils within the rotating machinery.

    摘要翻译: 本发明涉及用于稳定旋转机械的操作的设备,特别是使用磁性轴承的机械。 加速度传感器检测机械内的各种振动。 通过快速傅立叶变换算法分析加速度计的输出,并乘以一系列影响系数,以计算要施加到旋转机械的所需稳定力。 补偿模拟电压信号根据其生成,并传送到旋转机械内的磁控线圈。

    Active mounts
    5.
    发明授权
    Active mounts 失效
    主动安装

    公开(公告)号:US5133527A

    公开(公告)日:1992-07-28

    申请号:US692564

    申请日:1991-04-29

    IPC分类号: F16F15/03

    CPC分类号: F16F15/03

    摘要: The present invention relates to an active mount system in which a vibration sensor such as a force gauge or an accelerometer senses vibrational forces transmitted through a resilient mount by a load such as a machine. The invention further includes a digital narrow-band least mean square filter that receives a sinusoid synchronous with the rotating machinery and an error signal from the load cell and generates a corrective signal to be amplified and transmitted to the electromagnet which supplies an attenuating force to the resilient mount in response to the signal. As an alternative, a wide frequency range control can be realized by the use of a wide frequency range, high gain amplifier and multi-filter phase compensation circuitry to generate the corrective force signal which is amplified and transmitted to the electromagnet.

    摘要翻译: 本发明涉及一种主动安装系统,其中诸如力量表或加速度计的振动传感器感测通过诸如机器的负载通过弹性安装件传递的振动力。 本发明还包括数字窄带最小均方滤波器,其接收与旋转机械同步的正弦波和来自测力传感器的误差信号,并产生要被放大并传输到电磁体的校正信号,该电磁体向 响应信号的弹性安装。 作为替代,可以通过使用宽频率范围,高增益放大器和多滤波器相位补偿电路来实现宽频率范围控制,以产生被放大并传输到电磁体的校正力信号。