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    Process for optimizing multilayered tubes made of composite materials and tubes obtained through the process
    1.
    发明授权
    Process for optimizing multilayered tubes made of composite materials and tubes obtained through the process 失效
    用于优化通过该方法获得的由复合材料和管制成的多层管的方法

    公开(公告)号：US5749985A

    公开(公告)日：1998-05-12

    申请号：US18522

    申请日：1993-02-17

    申请人： Charles Sparks ,  Jacques Schmitt ,  Guy Metivaud ,  Marcel Auberon

    发明人： Charles Sparks ,  Jacques Schmitt ,  Guy Metivaud ,  Marcel Auberon

    IPC分类号： F16L9/14 ,  B29C70/16 ,  B29K105/06 ,  B29L23/00 ,  F16L11/08 ,  B32B31/00

    CPC分类号： F16L11/08

    摘要： Process for optimizing the features of multilayered tubes made of fibrous composite materials, allowing to maintain within the specified limits the limit elongations and stresses which they withstand in response to the applied strains. The process comprises selecting at least two optimized features characteristic of each layer (its thickness and the winding angle of the fibers for example) by starting from an initial tube selected a priori. Through small deviations applied to the parameters, the relations between small deviations applied to the parameters and the variations of the resulting limit elongations and stresses are determined, as well as the inverse relations relating the variations of the limit elongations and stresses to the parameter deviations. Knowing these inverse relations allows, in one or several stages, to find out the deviations to be applied in order to make up the measurable differences between the limit elongations and stresses of the optimized tube and the tube selected a priori. Application to the achievement of tubular pipes for the oil industry for example.

    摘要翻译： 用于优化由纤维复合材料制成的多层管的特征的方法，允许在规定的限度内保持它们响应于应变应变而承受的极限伸长和应力。 该过程包括从先前选择的初始管开始，选择每层特征的至少两个优化特征（例如，其纤维的厚度和卷绕角度）。 通过施加到参数的小偏差，确定施加到参数的小偏差与所产生的极限伸长和应力的变化之间的关系，以及将极限伸长和应力的变化与参数偏差相关联的反向关系。 知道这些反向关系允许在一个或几个阶段中找出要应用的偏差，以便构成优化的管和管的极限伸长和应力之间的可测量的差异。 应用于石油工业的管状管道的实现。

    Process for manufacturing a variable stiffness line and associated element
    2.
    发明授权
    Process for manufacturing a variable stiffness line and associated element 失效
    制造可变刚度线和相关元件的方法

    公开(公告)号：US5447390A

    公开(公告)日：1995-09-05

    申请号：US980796

    申请日：1993-04-12

    申请人： Charles Sparks ,  Pierre Odru ,  Marcel Auberon ,  Guy Metivaud

    发明人： Charles Sparks ,  Pierre Odru ,  Marcel Auberon ,  Guy Metivaud

    IPC分类号： F16L9/12 ,  F16L33/00 ,  F16L33/01 ,  F16L33/28 ,  E02B17/00

    CPC分类号： F16L9/12

    摘要： A process for manufacturing a line of variable stiffness over part of the length thereof and the associated element which allows the line to have the variable stiffness thereof is disclosed. The element is integrated during the manufacturing of the line or deposited thereafter around the line; the element consists of composite material underlayers in which the directions of the fibers have at least one component making a zero or a low-value angle with the axis of the pipe, and the layers end in a graded way. The process has application to the manufacturing of a riser base.

    摘要翻译： PCT No.PCT / FR92 / 00577 Sec。 371日期：1993年4月12日 102（e）日期1993年4月12日PCT提交1992年6月24日PCT公布。 公开号WO93 / 00441 日本1993年1月21日。公开了一种用于在其长度部分上制造可变刚度线的方法以及允许线具有可变刚度的相关元件。 在制造生产线期间将元件集成在一起，或者在其后围绕线路进行放置; 该元件由复合材料底层组成，其中纤维的方向具有至少一个与管的轴线成零或低角度角度的分量，并且层以分级方式结束。 该方法适用于制造提升管基座。

    Method for hooping and maintaining in compression a core by a sheath made of a composite material
    5.
    发明授权
    Method for hooping and maintaining in compression a core by a sheath made of a composite material 失效
    通过由复合材料制成的护套来对芯体进行加压和保持的方法

    公开(公告)号：US5302338A

    公开(公告)日：1994-04-12

    申请号：US18922

    申请日：1993-02-18

    申请人： Guy Metivaud ,  Marcel Auberon

    发明人： Guy Metivaud ,  Marcel Auberon

    IPC分类号： B23P11/02 ,  B29C63/20 ,  B29C31/08

    CPC分类号： B29C63/20 ,  B23P11/022 ,  B29K2105/06 ,  Y10T29/49805 ,  Y10T29/49812 ,  Y10T29/4987

    摘要： A method for hooping and maintaining in compression a core by a sheath, with the sheath being made of a composite material and having an internal cross section which is less than an external cross section of the core. The core and the sheath are aligned by centering them with respect to each other, and a prior tensile force is exerted over the core to provide a suitable sealing between the portion in contact of each of the ends of the core and of the sheath. A pressurized fluid is injected into the sheath in a direction of the core, to increase the cross section of the sheath by expanding the sheath in a circumferential direction. The core is thereby gradually inserted into the sheath. When the insertion is complete, fluid injection is ceased and an expendable portion of the sheath is cut off.

    摘要翻译： 一种用于通过护套对芯体进行加压和保持的方法，其中护套由复合材料制成并且具有小于芯的外部横截面的内部横截面。 芯和护套通过将它们相对于彼此对中而对准，并且先前的拉力施加在芯上，以在芯部和护套的每个端部的接触部分之间提供合适的密封。 加压流体沿着芯的方向注入护套中，以通过沿圆周方向膨胀护套来增加护套的横截面。 因此，芯部逐渐插入鞘中。 当插入完成时，流体注射停止，护套的消耗部分被切断。