VIBRATIONAL DAMPENING ELEMENT AND CORRESPONDING ROTOR BLADE

    公开(公告)号:EP3978726A1

    公开(公告)日:2022-04-06

    申请号:EP21187048.0

    申请日:2021-07-21

    摘要: A vibrational dampening element (300) is attached to a component and configured to adjust the amplitude of oscillations of the component. The vibrational dampening element (300) includes a mass (308). The mass (308) includes a main body (310) and a member (312) extending from the main body (310). A casing (306) that encapsulates the mass (308). A fluidic chamber (309) defined between the mass (308) and the casing (306). A first fluidic portion (318) is disposed between a first side of the mass (308) and the casing (306). The first fluidic portion (318) includes a first accumulator portion (324) directly neighboring the member (312). A second fluidic portion (328) is disposed between a second side of the mass (308) and the casing (306). The second fluidic portion (328) includes a second accumulator portion (334) directly neighboring the member (312). The first accumulator portion (324) is in fluid communication with the second accumulator portion (334). The vibrational dampening element (300) further includes a primary passage (362) that extends between the first fluidic portion (318) and the second fluidic portion (328).

    ANTI-EXPLOSION PROTECTION SYSTEM FOR DAMPING BARRIERS

    公开(公告)号:EP3604714A1

    公开(公告)日:2020-02-05

    申请号:EP18775588.9

    申请日:2018-03-28

    IPC分类号: E04H9/04 E04B2/42 F16F7/116

    摘要: The present invention relates to a blast loading protection system based on containment barriers, which allows energy to be absorbed using a damping system formed by two walls that are connected by means of oscillators. According to the invention, the front wall (1) is supported by a system of bearings or a sliding surface (4) allowing the front wall to move relative to the second wall (2). The front wall receives the pressure wave and, owing to the movement of the mass of said front wall (1), a reduced pressure is transmitted to the rear wall (2), which is protected by the system. In said barrier, a large part of the energy from the explosion is transformed into the kinetic energy of an oscillating mass.