METHOD FOR DAMPING A GAS-TURBINE BLADE, AND VIBRATION DAMPER FOR IMPLEMENTING SAME
    1.
    发明申请
    METHOD FOR DAMPING A GAS-TURBINE BLADE, AND VIBRATION DAMPER FOR IMPLEMENTING SAME 审中-公开
    用于阻止气体涡轮叶片的方法和用于实施其的振动阻尼器

    公开(公告)号:US20130280068A1

    公开(公告)日:2013-10-24

    申请号:US13978007

    申请日:2011-12-20

    IPC分类号: F01D25/06

    摘要: A turbine wheel with optimal-mass dampers to dampen a predetermined resonance in context of vibration of a turbine, particularly a low-speed turbine, while assisting in flexibility of adapting to bearing surfaces of recesses of the dampers, by separating mass and flexibility functions by a flexible portion for clamping against the platform, and a mass portion for controlling frictional forces. A damper includes a plate and a counterweight. The plate is stamped from a metal sheet that is substantially thinner than that of the counterweight. The plate includes a wall configured to flexibly contact a platform of the blade of the wheel, while at least partially surrounding a surface of the counterweight. The damper can be used in particular for a wheel of a turbine of a turbine engine, of a fan, or of a BP compressor having mounted blades.

    摘要翻译: 一种具有最佳质量阻尼器的涡轮机叶轮,用于在涡轮振动,特别是低速涡轮机的振动环境下抑制预定的共振,同时通过分离质量和柔性功能来辅助调节阻尼器的凹部的支承表面的灵活性, 用于夹紧平台的柔性部分和用于控制摩擦力的质量部分。 阻尼器包括板和配重。 该板被从比配重的薄金属板冲压。 该板包括被配置为柔性地接触车轮的叶片的平台的壁,同时至少部分地围绕配重的表面。 阻尼器特别可用于涡轮发动机,风扇或具有安装叶片的BP压缩机的涡轮机的车轮。

    Method for damping a gas-turbine blade, and vibration damper for implementing same

    公开(公告)号:US10138756B2

    公开(公告)日:2018-11-27

    申请号:US13978007

    申请日:2011-12-20

    摘要: A turbine wheel with optimal-mass dampers to dampen a predetermined resonance in context of vibration of a turbine, particularly a low-speed turbine, while assisting in flexibility of adapting to bearing surfaces of recesses of the dampers, by separating mass and flexibility functions by a flexible portion for clamping against the platform, and a mass portion for controlling frictional forces. A damper includes a plate and a counterweight. The plate is stamped from a metal sheet that is substantially thinner than that of the counterweight. The plate includes a wall configured to flexibly contact a platform of the blade of the wheel, while at least partially surrounding a surface of the counterweight. The damper can be used in particular for a wheel of a turbine of a turbine engine, of a fan, or of a BP compressor having mounted blades.

    METHOD FOR MOUNTNG SHIELDING ON A TURBINE CASING, AND MOUNTING ASSEMBLY FOR IMPLEMENTING SAME
    3.
    发明申请
    METHOD FOR MOUNTNG SHIELDING ON A TURBINE CASING, AND MOUNTING ASSEMBLY FOR IMPLEMENTING SAME 有权
    涡轮机外壳上的安装方法及其实施安装组件

    公开(公告)号:US20130142634A1

    公开(公告)日:2013-06-06

    申请号:US13817057

    申请日:2011-08-23

    IPC分类号: F01D25/24 B21K1/26

    摘要: A method and structure negating thermal inertia of a solid portion, such as shielding, which influences mechanical behavior of parts of an engine structure, by reducing forces transmitted to the engine structure during an event in which a turbine blade ruptures, while preserving mechanical strength and vibratory positioning. The structure includes a flexible fastener for a shield, enabling producing a fusible section. An assembly for mounting a shielding onto a casing of the engine structure of a turbine includes connection lugs and points for attachment to the casing and shielding. The attachment points are sufficiently spaced apart in accordance with curvature of the shielding and casing so connection between the lugs and the shielding or casing, and connection of the attachment points, are substantially tangential. The lugs are sized so the connection has sufficient flexibility to control vibratory positioning thereof and ensure sufficient mechanical strength under thermo-mechanical loads.

    摘要翻译: 一种方法和结构通过在涡轮叶片破裂的事件期间减少传递到发动机结构的力同时保持机械强度而抵消固体部分(例如屏蔽)的热惯性,其影响发动机结构部件的机械性能, 振动定位。 该结构包括用于护罩的柔性紧固件,能够产生可熔部分。 用于将屏蔽件安装在涡轮机的发动机结构的壳体上的组件包括用于附接到壳体和屏蔽的连接凸耳和点。 附接点根据屏蔽和壳体的曲率充分间隔开,因此凸耳与屏蔽或壳体之间的连接以及连接点的连接基本上是切线的。 凸耳的尺寸使得连接具有足够的灵活性来控制其振动定位并且确保在热机械载荷下的足够的机械强度。

    Method for mounting shielding on a turbine casing, and mounting assembly for implementing same
    4.
    发明授权
    Method for mounting shielding on a turbine casing, and mounting assembly for implementing same 有权
    在涡轮壳体上安装屏蔽的方法,以及用于实现其的安装组件

    公开(公告)号:US09429038B2

    公开(公告)日:2016-08-30

    申请号:US13817057

    申请日:2011-08-23

    摘要: A method and structure negating thermal inertia of a solid portion, such as shielding, which influences mechanical behavior of parts of an engine structure, by reducing forces transmitted to the engine structure during an event in which a turbine blade ruptures, while preserving mechanical strength and vibratory positioning. The structure includes a flexible fastener for a shield, enabling producing a fusible section. An assembly for mounting a shielding onto a casing of the engine structure of a turbine includes connection lugs and points for attachment to the casing and shielding. The attachment points are sufficiently spaced apart in accordance with curvature of the shielding and casing so connection between the lugs and the shielding or casing, and connection of the attachment points, are substantially tangential. The lugs are sized so the connection has sufficient flexibility to control vibratory positioning thereof and ensure sufficient mechanical strength under thermo-mechanical loads.

    摘要翻译: 一种方法和结构通过在涡轮叶片破裂的事件期间减少传递到发动机结构的力同时保持机械强度而抵消固体部分(例如屏蔽)的热惯性,其影响发动机结构部件的机械性能, 振动定位。 该结构包括用于护罩的柔性紧固件,能够产生可熔部分。 用于将屏蔽件安装在涡轮机的发动机结构的壳体上的组件包括用于附接到壳体和屏蔽的连接凸耳和点。 附接点根据屏蔽和壳体的曲率充分间隔开,因此凸耳与屏蔽或壳体之间的连接以及连接点的连接基本上是切线的。 凸耳的尺寸使得连接具有足够的灵活性来控制其振动定位并且确保在热机械载荷下的足够的机械强度。

    Flexible rear bearing mounting, having an abutment, for a turbine engine
    5.
    发明授权
    Flexible rear bearing mounting, having an abutment, for a turbine engine 有权
    具有用于涡轮发动机的支座的柔性后轴承安装件

    公开(公告)号:US09194253B2

    公开(公告)日:2015-11-24

    申请号:US13581038

    申请日:2011-02-24

    IPC分类号: F01D25/16 F01D9/04

    摘要: An assembly including a part for mounting at least one shaft bearing of a turbine engine and a support part that forms an abutment for the mounting part. The mounting part includes at least one channel through which engine gases pass, and connection parts that are capable of connecting the channel to an outer structure of the engine and to a housing holding the bearing. At least one of the connection parts is flexible so as to enable radial movement of the channel, an amplitude of the radial movement being limited by at least one of the elements of the mounting part coming onto an abutment supported by the support part. The support part extends longitudinally with regard to the direction of the rotational axis of the turbine engine so as to generate a turbine shroud that is configured to be positioned in alignment with a turbine wheel of the turbine engine.

    摘要翻译: 一种组件,包括用于安装涡轮发动机的至少一个轴承的部件和形成用于安装部件的抵接件的支撑部件。 安装部分包括发动机气体通过的至少一个通道,以及能够将通道连接到发动机的外部结构和保持轴承的壳体的连接部件。 连接部件中的至少一个是柔性的,以便能够使通道径向移动,径向运动的振幅由安装部件的至少一个元件限制在由支撑部分支撑的邻接部上。 支撑部分相对于涡轮发动机的旋转轴线的方向纵向地延伸,以便产生被配置为与涡轮发动机的涡轮机对准的涡轮机罩。

    FLEXIBLE REAR BEARING MOUNTING, HAVING AN ABUTMENT, FOR A TURBINE ENGINE
    6.
    发明申请
    FLEXIBLE REAR BEARING MOUNTING, HAVING AN ABUTMENT, FOR A TURBINE ENGINE 有权
    柔性后轴承安装,具有一台驳船,用于涡轮发动机

    公开(公告)号:US20120321447A1

    公开(公告)日:2012-12-20

    申请号:US13581038

    申请日:2011-02-24

    IPC分类号: F01D25/16 F01D25/24

    摘要: An assembly including a part for mounting at least one shaft bearing of a turbine engine and a support part that forms an abutment for the mounting part. The mounting part includes at least one channel through which engine gases pass, and connection parts that are capable of connecting the channel to an outer structure of the engine and to a housing holding the bearing. At least one of the connection parts is flexible so as to enable radial movement of the channel, an amplitude of the radial movement being limited by at least one of the elements of the mounting part coming onto an abutment supported by the support part. The support part extends longitudinally with regard to the direction of the rotational axis of the turbine engine so as to generate a turbine shroud that is configured to be positioned in alignment with a turbine wheel of the turbine engine.

    摘要翻译: 一种组件,包括用于安装涡轮发动机的至少一个轴承的部件和形成用于安装部件的抵接件的支撑部件。 安装部分包括发动机气体通过的至少一个通道,以及能够将通道连接到发动机的外部结构和保持轴承的壳体的连接部件。 连接部件中的至少一个是柔性的,以便能够使通道径向移动,径向运动的振幅由安装部件的至少一个元件限制在由支撑部分支撑的邻接部上。 支撑部分相对于涡轮发动机的旋转轴线的方向纵向地延伸,以便产生被配置为与涡轮发动机的涡轮机对准的涡轮机罩。