COMPOSITE AIRFOILS WITH FRANGIBLE TIPS

    公开(公告)号:US20230003129A1

    公开(公告)日:2023-01-05

    申请号:US17363102

    申请日:2021-06-30

    Abstract: Composite airfoils and methods for forming composite airfoils are provided. For example, a composite airfoil of a gas turbine engine comprises opposite pressure and suction sides extending radially along a span from a root to a tip, which define opposite radial extremities of the airfoil. The composite airfoil further comprises a body section and a tip section, which includes the tip, that each extend radially along the span. The composite airfoil is formed from a composite material comprising fibers disposed in a matrix material. The tip section has a tip fiber volume, and the body section has a body fiber volume that is greater than the tip fiber volume. Another composite airfoil comprises a tip cap applied over the tip that tapers from a first end to a second end such that each of the pressure and suction side walls of the tip cap narrows from a first thickness to a second thickness.

    Frangible gas turbine engine airfoil including an internal cavity

    公开(公告)号:US11434781B2

    公开(公告)日:2022-09-06

    申请号:US16161233

    申请日:2018-10-16

    Abstract: An airfoil defining a span extending between a root and a tip. The airfoil includes a frangible airfoil portion extending between a leading edge and a trailing edge and extending between the tip and a fusion line along the span. The frangible airfoil portion includes a first material defining a first modulus of elasticity and further defines an internal cavity. The airfoil includes a residual airfoil portion coupled to the frangible airfoil portion extending from the fusion line to the root along the span and including a second material defining a second modulus of elasticity greater than the first modulus of elasticity. The residual airfoil portion meets the frangible airfoil portion at the fusion line.

    VIBRATION CONTROL FOR A GAS TURBINE ENGINE
    14.
    发明申请

    公开(公告)号:US20190063747A1

    公开(公告)日:2019-02-28

    申请号:US15689460

    申请日:2017-08-29

    Abstract: A method for operating a gas turbine engine includes receiving data indicative of an operational vibration within a section of the gas turbine engine; and providing electrical power to a shaker mechanically coupled to one or more components of the section of the gas turbine engine to generate a canceling vibration to reduce or minimize the operational vibration within the section of the gas turbine engine.

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