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    HELICOPTER VIBRATION CONTROL SYSTEM AND ROTATING ASSEMBLY ROTARY FORCES GENERATORS FOR CANCELING VIBRATIONS
    13.
    发明授权
    HELICOPTER VIBRATION CONTROL SYSTEM AND ROTATING ASSEMBLY ROTARY FORCES GENERATORS FOR CANCELING VIBRATIONS 有权
    华盛顿哥伦比亚特区华盛顿特区

    公开(公告)号：EP2356024B1

    公开(公告)日：2015-11-04

    申请号：EP09799799.3

    申请日：2009-12-14

    申请人： LORD Corporation

    发明人： JOLLY, Mark, R. ,  MEYERS, Andrew, D.

    IPC分类号： F16F15/22 ,  B64C27/00

    CPC分类号： B64C27/001 ,  B64C2027/003 ,  F16F15/22 ,  G05D19/02 ,  Y10S416/50

    摘要： A rotary wing aircraft including a vehicle vibration control system. The vehicle vibration control system includes a rotating hub mounted vibration control system, the rotating hub mounted vibration control system mounted to the rotating rotary wing hub with the rotating hub mounted vibration control system rotating with the rotating rotary wing hub. The vehicle vibration control system includes a rotary wing aircraft member sensor for outputting rotary wing aircraft member data correlating to the relative rotation of the rotating rotary wing hub member rotating relative to the nonrotating body, at least a first nonrotating body vibration sensor, the at least first nonrotating body vibration sensor outputting at least first nonrotating body vibration sensor data correlating to vibrations, at least a first nonrotating body circular force generator, the at least a first nonrotating body circular force generator fixedly coupled with the nonrotating body, and a distributed force generation data communications network link.

    摘要翻译： 一种包括车辆振动控制系统的旋翼飞机。 车辆振动控制系统包括旋转轮毂安装的振动控制系统，旋转轮毂安装的振动控制系统安装到旋转的旋翼轮毂上，旋转轮毂安装的振动控制系统与旋转的旋翼轮毂一起旋转。 所述车辆振动控制系统包括用于输出旋转翼飞行器构件数据的旋转翼飞行器构件传感器，所述旋转翼飞行器构件数据与旋转的旋转翼轮毂构件相对于非旋转体相对旋转相关，至少第一非旋转体振动传感器 第一非旋转体振动传感器，至少输出与振动相关的第一非旋转体振动传感器数据，至少第一非旋转体圆周力产生器，与所述非旋转体固定连接的所述至少第一非旋转体圆周力产生器，以及分布力产生 数据通信网络链接。

    Method and apparatus for reducing stick-slip
    14.
    发明公开
    Method and apparatus for reducing stick-slip 审中-公开
    用于减少粘滑的方法和设备

    公开(公告)号：EP2843186A2

    公开(公告)日：2015-03-04

    申请号：EP14182352.6

    申请日：2009-11-30

    申请人： National Oilwell Varco, L.P.

    发明人： Kyllingstad, Åge ,  Nessjoen, Pål Jacob

    IPC分类号： E21B44/00

    CPC分类号： E21B44/00 ,  G05B15/02 ,  G05D19/02

    摘要： The present invention relates to a method of damping stick-slip oscillations in a drill string, to a method of drilling a borehole, to a drilling mechanism for use in drilling a borehole, to an electronic controller for use with a drilling mechanism, and to a method of upgrading a drilling mechanism on a drilling rig.
    Aspects of the present invention are based on the insight that a PI or PID controller can in fact be used to obtain significant damping of stick-slip oscillations by the drilling mechanism. In particular it was found that a PI or PID controller can be tuned to ensure efficient damping torsional wave energy at and/or near the fundamental mode of stick-slip frequency. A further insight on which certain embodiments are based is that both the fundamental and one or more higher mode (e.g. second natural mode and greater) oscillation can also be damped by reducing the effective inertia of the drilling mechanism, which may be achieved in several different ways.

    摘要翻译： 本发明涉及一种阻尼钻柱中的粘滑振荡的方法，一种钻孔的方法，一种用于钻孔的钻孔机构，一种与钻孔机构一起使用的电子控制器，以及 一种升级钻机上的钻孔机构的方法。 本发明的方面基于这样的认识：PI或PID控制器事实上可以用于获得钻孔机构对粘滑振荡的显着阻尼。 具体而言，发现可以调整PI或PID控制器以确保在粘滑频率的基本模式处和/或附近有效的阻尼扭转波能量。 关于某些实施例所基于的进一步见解是，基本振动和一个或多个较高振动模式（例如第二自然振动模式和更大振动）两者也可以通过减少钻孔机构的有效惯性来衰减，这可以通过几种不同的方式来实现 方法。

    Method and apparatus for reducing stick-slip
    18.
    发明授权
    Method and apparatus for reducing stick-slip 有权
    减少粘滑的方法和装置

    公开(公告)号：EP2549055B1

    公开(公告)日：2014-08-27

    申请号：EP12188975.2

    申请日：2009-11-30

    申请人： National Oilwell Varco, L.P.

    发明人： Nessjoen, Pål Jacob ,  Kyllingstad, Åge

    IPC分类号： E21B44/00 ,  G05D19/02

    CPC分类号： E21B44/00 ,  G05B15/02 ,  G05D19/02

    摘要： A method of damping stick-slip oscillations in a drill string (12), which method comprises the steps of: (a) damping said stick-slip oscillations using a drilling mechanism (30) at the top of said drill string (12); and (b) controlling the speed of rotation of said drilling mechanism (30) using a PI controller; characterised by the steps of (c) tuning said PI controller so that said drilling mechanism (30) absorbs most torsional energy from said drill string (12) at a frequency that is at or near a fundamental frequency of said stick-slip oscillations; and (d) reducing an effective inertia of said drilling mechanism (30), whereby a damping effect of said drilling mechanism is increased for frequencies above said fundamental frequency.