OF MANUFACTURING FIBER STRUCTURE HAVING VARIABLE THICKNESS THROUGH THREE-DIMENSIONAL FABRIC

摘要

1. A method of manufacturing a fibrous structure by three-dimensional multilayer weaving, the fibrous structure having a thickness in the direction perpendicular to the direction of the warp and weft, which varies along the direction of the warp while maintaining the same number of warp threads involved in the fabric at all levels of the fibrous structure along the direction the basis, characterized in that when moving in the direction of the basis from the first section of the fibrous structure to the second section of the fibrous structure having a thickness greater than the thickness of the first section, reduce the number of warp planes and increase the number of layers of warp threads without changing the number of warp threads by forming at least one warp plane in the second part of the warp threads emanating from at least two different warp planes in the first part. . A method of manufacturing a fibrous structure by three-dimensional multilayer weaving, wherein the fibrous structure has a thickness in the direction perpendicular to the direction of the warp and weft, which varies along the direction of the warp while maintaining the same number of warp threads involved in the fabric at all levels of the fibrous structure along the warp direction, characterized in that when moving in the direction of the warp from the second portion of the fibrous structure to the first portion of the fibrous structure having a thickness less than the thickness of the part, increase the number of warp planes and reduce the number of warp layers without changing the number of warp threads, by distributing warp threads of at least one warp plane of the second part between different main planes