Composite steel structural plastic sandwich plate systems
    5.
    发明授权
    Composite steel structural plastic sandwich plate systems 失效
    复合钢结构塑料夹芯板系统

    公开(公告)号:US5778813A

    公开(公告)日:1998-07-14

    申请号:US746539

    申请日:1996-11-13

    摘要: A composite laminate panel suitable for building containment vessels, and in particular, suitable for building double hull oil tankers. The laminate has two facing metal layers structurally bonded to a polyurethane elastomer core. The laminate is used in various hull components, such as the hull plates, longitudinal girders, transverse frames and bulkheads. The laminate is used to build the inner hull and the outer hull, and may be used to build the structural supports between the inner and outer hulls. The innermost layer of inner hull contains the ship's cargo. The elastomer core of the inner hull laminate isolates the innermost hull skin from cracks, thereby preventing a loss of cargo such as oil into the environment, when the outer hull is pierced, penetrated or ruptured in an accident or grounding.

    摘要翻译: 一种适用于建造安全壳的复合层压板,特别适用于建造双层船用油轮。 层压板具有结构上结合到聚氨酯弹性体芯的两个相对的金属层。 层压板用于各种船体部件,例如船体板,纵向梁,横向框架和舱壁。 层压板用于建造内壳体和外壳体,并可用于在内外壳之间建造结构支撑。 内壳的最内层包含船舶的货物。 内壳层压板的弹性体芯片将最内层的船体表皮与裂缝隔离开来,从而防止在外部事故或接地时外壳被穿透,穿透或破裂时,将诸如油等货物丢入环境中。

    Pendulum mass damper hub propeller assembly for marine drives

    公开(公告)号:US11999457B1

    公开(公告)日:2024-06-04

    申请号:US17898038

    申请日:2022-08-29

    摘要: A propeller hub assembly for a marine drive having a propeller shaft is provided. The propeller hub assembly includes a first hub portion having a first main body and multiple propeller blades extending radially therefrom, a second hub portion, wherein the second hub portion is coupled to the first hub portion, and a damper hub portion, wherein the damper hub portion is coupled to the second hub portion. The propeller hub assembly further includes multiple pendulum masses located within the damper hub portion. The first hub portion, the second hub portion, and the damper hub portion are configured to engage the propeller shaft such that rotation of the propeller shaft causes rotation of the first hub portion, the second hub portion, and the damper hub portion. Oscillations of the pendulum masses relative to the damper hub portion are configured to dampen torsional vibrations of the propeller hub assembly.