公开(公告)号：US09297739B2

公开(公告)日：2016-03-29

申请号：US14353573

申请日：2012-11-06

申请人： SNECMA

发明人： Julien Schneider ,  Benedicte Marie Le Borgne

IPC分类号： G01N15/08 ,  G06T7/00

CPC分类号： G01N15/088 ,  G01N2015/0846 ,  G06T7/0002 ,  G06T7/0004 ,  G06T2207/10072 ,  G06T2207/10081 ,  G06T2207/10116 ,  G06T2207/30108

摘要： A method and device for estimating a porosity ratio of a sample of material from at least one gray-scale coded image. The method includes: evaluating an intermediate ratio of a sample for each value of a plurality of gray-scale threshold values lying between two determined limit values, the intermediate ratio being equal to a ratio of a number of pixels of the at least one image having a gray-scale value bounded by the threshold value to a total number of pixels of the at least one image; and estimating the porosity ratio of the sample by analyzing variations in the intermediate ratio as a function of the threshold value.

摘要翻译： 一种用于从至少一个灰度编码图像估计材料样品的孔隙率的方法和装置。 该方法包括：评估位于两个确定的极限值之间的多个灰度阈值的每个值的样本的中间比，所述中间比等于具有所述至少一个图像的像素数的比率 由所述阈值限定为所述至少一个图像的总像素数的灰度值; 并通过分析作为阈值的函数的中间比的变化来估计样品的孔隙率。

公开(公告)号：US20140008838A1

公开(公告)日：2014-01-09

申请号：US13936691

申请日：2013-07-08

申请人： SNECMA

发明人： Lea GANI ,  Benedicte Marie Le Borgne ,  Gilbert Michel Marin Leconte

IPC分类号： B29C45/00

CPC分类号： B29C45/0003 ,  B29C45/1639 ,  B29C45/1671 ,  B29C70/086 ,  B29C70/462 ,  B29C70/48 ,  B29C70/68 ,  B29C70/70 ,  B29K2105/12 ,  B29K2995/0015 ,  B29L2023/00 ,  B29L2031/3082

摘要： A method of making a structural part having a thermal protection barrier, the method comprising at least the following steps: making a fiber structure; introducing the fiber structure into an injection mold having first and second chambers, the fiber structure being placed in the second chamber; placing a movable separator partition between the first and second chambers; injecting a first resin into the first chamber; solidifying the resin injected into the first chamber; withdrawing the movable separator partition; injecting a second resin into the second chamber containing the fiber texture; and hardening the resins present in the first and second chambers of the injection mold in such a manner as to obtain a part having a structural core made of composite material constituted by fiber reinforcement densified by an organic matrix, and a thermal barrier constituted by a layer of hardened resin.

摘要翻译： 一种制造具有热保护屏障的结构部件的方法，所述方法至少包括以下步骤：制造纤维结构; 将纤维结构引入具有第一和第二室的注射模具中，将纤维结构放置在第二室中; 在第一和第二室之间放置可移动隔离物隔板; 将第一树脂注入第一室; 使注入第一室的树脂固化; 取出可动隔板隔板; 将第二树脂注入到含有纤维织构的第二室中; 并且以这样的方式使存在于注射模具的第一和第二腔室中的树脂硬化，以获得具有由由有机基体致密化的纤维增强材料构成的复合材料制成的结构芯的部分，以及由层 的硬化树脂。

公开(公告)号：US20140286564A1

公开(公告)日：2014-09-25

申请号：US14353573

申请日：2012-11-06

申请人： SNECMA

发明人： Julien Schneider ,  Benedicte Marie Le Borgne

IPC分类号： G01N15/08 ,  G06T7/00

CPC分类号： G01N15/088 ,  G01N2015/0846 ,  G06T7/0002 ,  G06T7/0004 ,  G06T2207/10072 ,  G06T2207/10081 ,  G06T2207/10116 ,  G06T2207/30108

摘要： A method and device for estimating a porosity ratio of a sample of material from at least one gray-scale coded image. The method includes: evaluating an intermediate ratio of a sample for each value of a plurality of gray-scale threshold values lying between two determined limit values, the intermediate ratio being equal to a ratio of a number of pixels of the at least one image having a gray-scale value bounded by the threshold value to a total number of pixels of the at least one image; and estimating the porosity ratio of the sample by analyzing variations in the intermediate ratio as a function of the threshold value.

摘要翻译： 一种用于从至少一个灰度编码图像估计材料样品的孔隙率的方法和装置。 该方法包括：评估位于两个确定的极限值之间的多个灰度阈值的每个值的样本的中间比，所述中间比等于具有所述至少一个图像的像素数的比率 由所述阈值限定为所述至少一个图像的总像素数的灰度值; 并通过分析作为阈值的函数的中间比的变化来估计样品的孔隙率。

公开(公告)号：US09555566B2

公开(公告)日：2017-01-31

申请号：US13936691

申请日：2013-07-08

申请人： SNECMA

发明人： Lea Gani ,  Benedicte Marie Le Borgne ,  Gilbert Michel Marin Leconte

IPC分类号： B29C45/00 ,  B29C70/46 ,  B29C70/48 ,  B29C45/16 ,  B29C70/08 ,  B29C70/70 ,  B29C70/68 ,  B29L23/00 ,  B29L31/30 ,  B29K105/12

CPC分类号： B29C45/0003 ,  B29C45/1639 ,  B29C45/1671 ,  B29C70/086 ,  B29C70/462 ,  B29C70/48 ,  B29C70/68 ,  B29C70/70 ,  B29K2105/12 ,  B29K2995/0015 ,  B29L2023/00 ,  B29L2031/3082

摘要： A method of making a structural part having a thermal protection barrier is provided. The method includes: making a fiber structure; introducing the fiber structure into an injection mold having first and second chambers, the fiber structure being placed in the second chamber; placing a movable separator partition between the first and second chambers; injecting a first resin into the first chamber; solidifying the resin injected into the first chamber; withdrawing the movable separator partition; injecting a second resin into the second chamber containing the fiber texture; and hardening the resins present in the first and second chambers of the injection mold in such a manner as to obtain a part having a structural core made of composite material constituted by fiber reinforcement densified by an organic matrix, and a thermal barrier constituted by a layer of hardened resin.

摘要翻译： 提供了制造具有热保护屏障的结构部件的方法。 该方法包括：制作纤维结构; 将纤维结构引入具有第一和第二室的注射模具中，将纤维结构放置在第二室中; 在第一和第二室之间放置可移动隔离物隔板; 将第一树脂注入第一室; 使注入第一室的树脂固化; 取出可动隔板隔板; 将第二树脂注入到含有纤维织构的第二室中; 并且以这样的方式使存在于注射模具的第一和第二腔室中的树脂硬化，以获得具有由由有机基体致密化的纤维增强材料构成的复合材料制成的结构芯的部分，以及由层 的硬化树脂。