Erosion protection system
    24.
    发明授权

    公开(公告)号:US10589850B2

    公开(公告)日:2020-03-17

    申请号:US15936866

    申请日:2018-03-27

    Abstract: An erosion protection system (EPS) has a first erosion protection unit (EPU) having a first ligament and a first scale attached to the first ligament, the first scale having an outer hardness that is greater than a hardness of the first ligament. The EPS also has a second EPU having a second ligament and a second scale attached to the second ligament, the second scale having an outer hardness that is greater than a hardness of the second ligament. The EPS also has an interstitial space between the first ligament and the second ligament wherein at least one of (1) the first scale overlaps at least a portion of the second EPU and (2) the second scale overlaps at least a portion of the first EPU.

    COMPOSITE WING STRUCTURE AND METHODS OF MANUFACTURE

    公开(公告)号:US20190143613A1

    公开(公告)日:2019-05-16

    申请号:US16244295

    申请日:2019-01-10

    Abstract: In one aspect, there is a method of making a pre-cured laminate having a total number of plies in a mold, the mold having a cavity with a periphery defined by a forward edge, an aft edge, and outboard ends. The method includes selecting a first plurality of resin impregnated plies that continuously extend beyond the periphery of the cavity, the first plurality of resin impregnated plies includes at least 50 percent of the total number of plies; laying the plies in a mold; compacting the plies in a mold; and pre-curing the plies to form a pre-cured laminate, which can extend beyond the periphery of the cavity. In an embodiment, a pre-cured laminate includes a first plurality of resin impregnated plies that continuously extend beyond the periphery of the cavity.

    Rotorcraft Component Simulation using Scan-based Geometry
    29.
    发明申请
    Rotorcraft Component Simulation using Scan-based Geometry 审中-公开
    使用基于扫描的几何的转子组件模拟

    公开(公告)号:US20160300003A1

    公开(公告)日:2016-10-13

    申请号:US15092969

    申请日:2016-04-07

    CPC classification number: G06F17/5018 G06F17/5086

    Abstract: A method of performing structural analysis relating to a component having CAD-based geometry, refined CAD-based geometry and CAD-based FEA data associated therewith. The method includes scanning the component to obtain scan-based point cloud geometry of the component, aligning the scan-based point cloud geometry with the CAD-based geometry of the component, generating scan-based geometry of the component by refining the scan-based point cloud geometry, comparing the scan-based geometry with the refined CAD-based geometry of the component to quantify geometric differences therebetween, generating scan-based FEA geometry of the component by meshing the scan-based geometry, performing finite element analysis on the scan-based FEA geometry to obtain scan-based FEA data and comparing the scan-based FEA data with the CAD-based FEA data of the component to quantify the effect of geometric difference therebetween.

    Abstract translation: 执行关于具有基于CAD的几何,基于精简的基于CAD的几何和与其相关联的基于CAD的FEA数据的组件的结构分析的方法。 该方法包括扫描组件以获得组件的基于扫描的点云几何,使基于扫描的点云几何与组件的基于CAD的几何对齐,通过精炼基于扫描的基于扫描的点云几何 将基于扫描的几何与基于组件的基于CAD的几何组合进行比较,以量化其间的几何差异,通过网格化基于扫描的几何形状生成基于扫描的FEA几何形状,对扫描进行有限元分析 的FEA几何,以获得基于扫描的FEA数据,并将基于扫描的FEA数据与组件的基于CAD的FEA数据进行比较,以量化其间几何差异的影响。

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