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    Algorithm for the efficient calculation of multiple fiber group materials within a specified FEM
    1.
    发明授权
    Algorithm for the efficient calculation of multiple fiber group materials within a specified FEM 有权
    用于在指定FEM内有效计算多个光纤组材料的算法

    公开(公告)号：US08433549B2

    公开(公告)日：2013-04-30

    申请号：US12502951

    申请日：2009-07-14

    申请人： Thomas Güll ,  Stephan Fell ,  Valentin Schultheis

    发明人： Thomas Güll ,  Stephan Fell ,  Valentin Schultheis

    IPC分类号： G06G7/48

    CPC分类号： G06F17/5018 ,  G06F17/5095 ,  G06F2217/42

    摘要： A method for calculating multi-directional composites in FEM simulations for designing a high pressure tank. The method starts by reading data for the simulation including fiber orientation and composite material properties. Then, for every FEM element, the method calculates the stiffness of directional plies and converts the calculated stiffness into a local coordinate system for each ply. The method then calculates the stiffness of packets of fiber orientations as a layer set-up. The method then calculates engineering constants for the layer set-up and the equivalents for the stress limit for the layer set-up. The method then uses the engineering constants to calculate the stresses on the FEM elements and determines whether the calculated stress is above a predetermined stress limit for each element. If the calculated stress is above the stress limit, then the algorithm switches to a complex calculation of stress that calculates the stress for each ply.

    摘要翻译： 一种用于设计高压罐的有限元模拟中多向复合材料的计算方法。 该方法从阅读数据开始，包括纤维取向和复合材料性质。 然后，对于每个FEM元素，该方法计算方向层的刚度，并将计算的刚度转换为每个层的局部坐标系。 然后，该方法计算纤维取向的包的刚度作为层设置。 然后，该方法计算层设置的工程常数和层设置的应力限制的等效值。 然后，该方法使用工程常数来计算FEM元件上的应力，并确定计算的应力是否高于每个元件的预定应力极限。 如果计算出的应力超过应力极限，则算法切换到计算每个层的应力的应力的复杂计算。

    ALGORITHM FOR THE EFFICIENT CALCULATION OF MULTIPLE FIBER GROUP MATERIALS WITHIN A SPECIFIED FEM
    2.
    发明申请
    ALGORITHM FOR THE EFFICIENT CALCULATION OF MULTIPLE FIBER GROUP MATERIALS WITHIN A SPECIFIED FEM 有权
    用于有规律地计算多根纤维集团材料的算法

    公开(公告)号：US20110015905A1

    公开(公告)日：2011-01-20

    申请号：US12502951

    申请日：2009-07-14

    申请人： THOMAS Güll ,  Stephan Fell ,  Valentin Schultheis

    发明人： THOMAS Güll ,  Stephan Fell ,  Valentin Schultheis

    IPC分类号： G06F17/10 ,  G06G7/48

    CPC分类号： G06F17/5018 ,  G06F17/5095 ,  G06F2217/42

    摘要： A method for calculating multi-directional composites in FEM simulations for designing a high pressure tank. The method starts by reading data for the simulation including fiber orientation and composite material properties. Then, for every FEM element, the method calculates the stiffness of directional plies and converts the calculated stiffness into a local coordinate system for each ply. The method then calculates the stiffness of packets of fiber orientations as a layer set-up. The method then calculates engineering constants for the layer set-up and the equivalents for the stress limit for the layer set-up. The method then uses the engineering constants to calculate the stresses on the FEM elements and determines whether the calculated stress is above a predetermined stress limit for each element. If the calculated stress is above the stress limit, then the algorithm switches to a complex calculation of stress that calculates the stress for each ply.

    摘要翻译： 一种用于设计高压罐的有限元模拟中多向复合材料的计算方法。 该方法从阅读数据开始，包括纤维取向和复合材料性质。 然后，对于每个FEM元素，该方法计算方向层的刚度，并将计算的刚度转换为每个层的局部坐标系。 然后，该方法计算纤维取向的包的刚度作为层设置。 然后，该方法计算层设置的工程常数和层设置的应力限制的等效值。 然后，该方法使用工程常数来计算FEM元件上的应力，并确定计算的应力是否高于每个元件的预定应力极限。 如果计算出的应力超过应力极限，则算法切换到计算每个层的应力的应力的复杂计算。

    Composite pressure vessel and method of assembling the same
    3.
    发明授权
    Composite pressure vessel and method of assembling the same 有权
    复合压力容器及其组装方法

    公开(公告)号：US08757423B2

    公开(公告)日：2014-06-24

    申请号：US12830219

    申请日：2010-07-02

    申请人： Richard M. Kleber ,  John E. Carsley ,  Hamid G. Kia ,  Chen-Shih Wang ,  Ce Sun ,  Elisabeth J. Berger ,  Stephan Fell ,  Valentin Schultheis

    发明人： Richard M. Kleber ,  John E. Carsley ,  Hamid G. Kia ,  Chen-Shih Wang ,  Ce Sun ,  Elisabeth J. Berger ,  Stephan Fell ,  Valentin Schultheis

    IPC分类号： B65D17/34

    CPC分类号： F17C13/06 ,  F16J12/00

    摘要： A composite pressure vessel assembly method includes fitting an end portion of a tubular member into an annular slot formed in an end cap. Sealant may be in the annular slot. The end cap includes an annular groove in an exterior surface of the end cap body portion. A first material layer is formed on an exterior surface of the tubular member. The first material layer includes a first composite material including fibers oriented circumferentially to the tubular member. A second material layer is formed on the first material layer with a portion of the second material layer being disposed into the annular groove, and includes a second composite material including fibers oriented axially to the tubular member. A third material layer is formed adjacent the second material layer and in the annular groove, and includes a third composite material including fibers having an orientation circumferential to the tubular member.

    摘要翻译： 复合压力容器组装方法包括将管状构件的端部装配到形成在端盖中的环形槽中。 密封剂可能在环形槽中。 端盖在端盖主体部分的外表面中包括环形槽。 第一材料层形成在管状构件的外表面上。 第一材料层包括第一复合材料，所述第一复合材料包括沿着所述管状构件周向取向的纤维。 第二材料层形成在第一材料层上，其中第二材料层的一部分设置在环形槽中，并且包括第二复合材料，其包括轴向地定向到管状构件的纤维。 在第二材料层和环形槽中形成第三材料层，并且包括第三复合材料，其包括具有与管状构件周向的取向的纤维。

    COMPOSITE PRESSURE VESSEL AND METHOD OF ASSEMBLING THE SAME
    4.
    发明申请
    COMPOSITE PRESSURE VESSEL AND METHOD OF ASSEMBLING THE SAME 有权
    复合压力容器及其组装方法

    公开(公告)号：US20120000916A1

    公开(公告)日：2012-01-05

    申请号：US12830219

    申请日：2010-07-02

    申请人： Richard M. Kleber ,  John E. Carsley ,  Hamid G. Kia ,  Chen-Shih Wang ,  Ce Sun ,  Elisabeth J. Berger ,  Stephan Fell ,  Valentin Schultheis

    发明人： Richard M. Kleber ,  John E. Carsley ,  Hamid G. Kia ,  Chen-Shih Wang ,  Ce Sun ,  Elisabeth J. Berger ,  Stephan Fell ,  Valentin Schultheis

    IPC分类号： F17C1/06 ,  B32B7/12 ,  B65B7/28 ,  B29C70/86

    CPC分类号： F17C13/06 ,  F16J12/00

    摘要： A composite pressure vessel assembly method includes fitting an end portion of a tubular member into an annular slot formed in an end cap. Sealant may be in the annular slot. The end cap includes an annular groove in an exterior surface of the end cap body portion. A first material layer is formed on an exterior surface of the tubular member. The first material layer includes a first composite material including fibers oriented circumferentially to the tubular member. A second material layer is formed on the first material layer with a portion of the second material layer being disposed into the annular groove, and includes a second composite material including fibers oriented axially to the tubular member. A third material layer is formed adjacent the second material layer and in the annular groove, and includes a third composite material including fibers having an orientation circumferential to the tubular member.

    摘要翻译： 复合压力容器组装方法包括将管状构件的端部装配到形成在端盖中的环形槽中。 密封剂可能在环形槽中。 端盖在端盖主体部分的外表面中包括环形槽。 第一材料层形成在管状构件的外表面上。 第一材料层包括第一复合材料，所述第一复合材料包括沿着所述管状构件周向取向的纤维。 第二材料层形成在第一材料层上，其中第二材料层的一部分设置在环形槽中，并且包括第二复合材料，其包括轴向地定向到管状构件的纤维。 在第二材料层和环形槽中形成第三材料层，并且包括第三复合材料，其包括具有与管状构件周向的取向的纤维。