Composite Structure with Bend Through Web and Number of Flanges

    公开(公告)号:US20250121569A1

    公开(公告)日:2025-04-17

    申请号:US18678971

    申请日:2024-05-30

    Abstract: Methods and apparatus for forming a composite structure with a bend in a web and a number of flanges of the composite structure are presented. A flat uncured composite laminate is placed in contact with a forming surface of a mandrel. Pressure is applied to a portion of the flat uncured composite laminate over a kink region in the forming surface of the mandrel to form a bent laminate. The bent laminate and the mandrel are placed into a forming assembly. Overhanging portions of the bent laminate are bent into contact with sides of the mandrel by the forming assembly to form the composite structure, the composite structure having the bend in a web of the composite structure in contact with the forming surface of the mandrel and a number of flanges in contact with the sides of the mandrel.

    Hydroacoustic Wave Detection Via an Underwater Cable

    公开(公告)号:US20250116548A1

    公开(公告)日:2025-04-10

    申请号:US18585526

    申请日:2024-02-23

    Inventor: Nathan D. Hiller

    Abstract: A hydroacoustic wave detection system that comprises a time delay generator and a hydroacoustic wave detector. The time delay generator is connected to an end of an underwater cable in which light signals travel in an optical fiber system in the underwater cable. The time delay generator is configured to introduce a time delay in the light signals received by the time delay generator to generate delayed light signals. The hydroacoustic wave detector is configured to control the time delay generator to generate a number of time delays. The hydroacoustic wave detector is configured to detect a presence of hydroacoustic waves for an event (e.g. underwater earthquake, underwater volcano, whale call) from an interferometric response determined using the light signals transmitted and the delayed light signals received. The hydroacoustic waves impinge on the underwater cable at a perturbation location along the underwater cable.

    Modeling system for 3D virtual model

    公开(公告)号:US12272018B2

    公开(公告)日:2025-04-08

    申请号:US17812996

    申请日:2022-07-15

    Abstract: A modeling system is provided which is configured to retrieve from the non-volatile memory the 3D virtual model of an object; define a domain of a parametric surface; project feature curves in the 3D virtual model into the domain of the parametric surface to generate a mapping based on the 3D virtual model and including a plurality of parametric curves; divide the plurality of parametric curves into horizontal and vertical feature curves; extend each of the horizontal feature and vertical feature curves; construct a horizontal interpolant connecting the extended horizontal feature curves; construct a vertical interpolant connecting the extended vertical feature curves; fit the horizontal and vertical interpolants as coordinates of a map to a new parametric domain; and compose the inverse of the map to the new parametric domain with the parametric surface to create a new parametric surface containing the feature curves as isoparametric curves.

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