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公开(公告)号：JPH11120382A
公开(公告)日：1999-04-30
申请号：JP28034097
申请日：1997-10-14
Applicant: IBM
Inventor： ITO TAKAYUKI , INOUE KEISUKE , YAMADA ATSUSHI , FURUHATA TOMOTAKE
Abstract: PROBLEM TO BE SOLVED: To calculate an inter-valve force so that valves are not in the hexagonally densest state and to automatically generate quadrilateral meshes by adaptively assuming the direction in which the inter-valve force operates to the contiguity direction of a contiguous valve without limiting to the center of the contiguous valve. SOLUTION: An object shape of meshing is inputted and valves are generated in an area in the shape. Then points of minimum potential are defined at four points on two straight points passing the centers of the valves at the periphery of one valve. An array direction is inputted as a vector, so the direction of this vector and its orthogonal direction are the two straight segments in the figure. Then the sum of forces from the potential fields of contiguous valves is calculated. Thus, the valve is moved with the force prescribed with the potential field set for the valve and the number of valves is controlled to determine the stable arrangement of the valves; and the centers of contiguous valves are connected to generate meshes.
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公开(公告)号：JPH11110586A
公开(公告)日：1999-04-23
申请号：JP24085897
申请日：1997-09-05
Applicant: IBM
Inventor： FURUHATA TOMOTAKE , ITO TAKAYUKI , INOUE KEISUKE , YAMADA ATSUSHI
Abstract: PROBLEM TO BE SOLVED: To automatically prepare a quadrilateral mesh by calculating a stable arrangement of bubbles of two or more kinds and connecting only the center points of the bubbles of a specified kind. SOLUTION: First, an object to be meshed and the aligning direction of a mesh are inputted (S110). Then, mesh nodes are arranged at the vertex and ridge line of the inputted object (S120). Then, the bubbles are initially arranged on the surface of the inputted object (S130). At the time, the bubbles of the two kinds are introduced. Then, the quadrilateral mesh is generated (S150). Then, a hexahedron bubble is generated in a three-dimensional space. Initially, the bubbles are arranged in the space (S160) and then the stable arrangement of the bubbles is calculated (S170). The calculation is almost similar to a processing for the surface. Then, when tetrahedron division is executed and only line segments for connecting the bubbles of a first kind are extracted, a hexahedral mesh is generated (S180).
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公开(公告)号：DE69912046D1
公开(公告)日：2003-11-20
申请号：DE69912046
申请日：1999-08-10
Applicant: IBM , UNIV PITTSBURGH CARNEGIE MELLO
Inventor： ITOH TAKAYUKI , INOUE KEISUKE , YAMADA ATSUSHI , SHIMADA KENJI
Abstract: A quadrilateral or a hexahedron is used for a virtual object. If, for example, a quadrilateral mesh is composed of perfect squares and a voronoi diagram is dual to them, it is considered that the voronoi diagram comprises the perfect squares whose centers are connected to be a quadrilateral mesh. Accordingly, the quadrilateral mesh is generated by filling the object to be meshed with quadrilateral virtual objects corresponding to the voronoi diagram and connecting their centers.
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14.发明专利Phase determination device, decomposable shape generation device, structural mesh generation device, phase determination method, decomposable shape generation method, computer-executable program for executing the phase determination method, computer-executable program for executing decomposable shape generation method, and structural mesh generation system 有权相位确定装置，可分解形状生成装置，结构网格生成装置，相位确定方法，可分解形状生成方法，用于执行相位确定方法的计算机可执行程序，用于执行可分解形状生成方法的计算机可执行程序和结构网格生成系统
公开(公告)号：JP2005018591A
公开(公告)日：2005-01-20
申请号：JP2003184979
申请日：2003-06-27
Applicant: Internatl Business Mach Corp
, インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation Inventor： YAMADA ATSUSHI , INOUE KEISUKE , DOI ATSUSHI
CPC classification number: G06T17/10
Abstract: PROBLEM TO BE SOLVED: To enable the efficient correction of phase matching property of an inputted three-dimensional shape approximated by a spatial graph. SOLUTION: The structural mesh generation system comprises the phase determination device 32 for reading shape data from a shape data storage device 10 to determine the phase matching property, and outputting data for solving the phase matching property; the decomposable shape generation device 32 for reading the data outputted by the device 32, changing the limitation condition of an integral plan problem solver to execute a shape correction processing, and outputting corrected shape data; and the structural mesh generation device 36 for reading the corrected shape data to generate a structural mesh. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：为了能够有效地校正由空间图近似的输入的三维形状的相位匹配特性。 解决方案：结构网格生成系统包括用于从形状数据存储装置10读取形状数据的相位确定装置32，以确定相位匹配特性，并输出用于求解相位匹配特性的数据; 用于读取由装置32输出的数据的可分解形状发生装置32，改变积分计划问题解决者的限制条件以执行形状校正处理，并输出校正后的形状数据; 以及用于读取校正后的形状数据以生成结构网格的结构网格生成装置36。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2004021773A
公开(公告)日：2004-01-22
申请号：JP2002178068
申请日：2002-06-19
Applicant: Internatl Business Mach Corp
, インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation Inventor： YAMADA ATSUSHI , YOSHIZAWA TAKERO , INOUE KEISUKE , DOI ATSUSHI
CPC classification number: G06T17/20
Abstract: PROBLEM TO BE SOLVED: To provide a recognition model generation system, a recognition model generation method, a program for making a computer execute the recognition model generation method, a computer-readable storage medium with the program stored therein, and a structural mesh generation system. SOLUTION: This recognition model generation system comprises a means 18 for labeling the ridge line and surface of an inputted 3-dimensional shape; a means 20 for generating a shape regulation value; a shape regulating means 22 for regulating the shape recognition by use of the generated regulation value; and a means 24 for generating the positional coordinate of the apex of a shape obtained by substituting the inputted 3-dimensional shape by a hexahedron by use of the output of the shape regulating means. The present invention further provides the recognition model generation method, the program for making a computer execute the recognition model generation method, the computer-storage medium with the program stored therein, and the structural mesh generation system. COPYRIGHT: (C)2004,JPO
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Patent Agency Ranking
公开(公告)号：JP2002189847A
公开(公告)日：2002-07-05
申请号：JP2000375200
申请日：2000-12-08
Applicant: IBM
Inventor： YAMADA ATSUSHI , INOUE KEISUKE
Abstract: PROBLEM TO BE SOLVED: To provide a sales management system enabling a seller to realize early collection of development cost for commodity, and a buyer to reduce the risk of urgent buying at a rather high price. SOLUTION: When the buyer purchases goods, a purchasing number N, an initial market price Pi with the function of N, and a real market price Ps with the function of the N and future selling actual number S are noticed. The buyer purchases the commodity at the initial market price Pi, and when the actual selling number of the commodity reach the designated value S, refunding for the amount of money obtained by subtracting the real market price Ps corresponding to S from the initial market price Pi is received.
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公开(公告)号：JP2000076486A
公开(公告)日：2000-03-14
申请号：JP22632299
申请日：1999-08-10
Inventor： ITO TAKAYUKI , INOUE KEISUKE , YAMADA ATSUSHI , SHIMADA KENJI
CPC classification number: G06T17/20
Abstract: PROBLEM TO BE SOLVED: To generate a quadrangle mesh or a hexahedron mesh by using a meshing method.
SOLUTION: In a conventional bubble meshing method, a bubble being a circular or spherical virtual object is moved by a dynamic simulation on a surface to be meshed or in an object to be meshed and the center of the stable arranged bubble is used as a mesh node. In this case, a quadrangle or a hexahedron is used as the virtual object. The quadrangle mesh constituted of squares is expressed by thick lines and a dual Voronoi drawing being its duality is expressed by dot lines in an upper figure. The Voronoi drawing is provided with the configuration of the squares and the connection of the center-of-gravity points of the respective squares are considered as the square mesh. Therefore, when the object to be meshed is filled with the square virtual objects corresponding to the drawing and the center-of-gravity points of them are connected, the square mesh is generated.
COPYRIGHT: (C)2000,JPOAbstract translation: 要解决的问题：通过使用啮合方法生成四边形网格或六面体网格。 解决方案：在传统的气泡啮合方法中，通过动态模拟在要啮合的表面或要啮合的物体中移动一个圆形或球形虚拟物体的气泡，并将稳定排列的气泡的中心用作网格 节点。 在这种情况下，使用四边形或六面体作为虚拟对象。 由正方形构成的四边形网格由粗线表示，双重Voronoi绘图的二元性由上图中的点划线表示。 Voronoi图提供了正方形的配置，并且各个正方形的重心点的连接被认为是方形网格。 因此，当要被绘制的对象被填充有对应于图形的方形虚拟对象并且它们的重心点被连接时，生成方形网格。
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公开(公告)号：JP2002024305A
公开(公告)日：2002-01-25
申请号：JP2000183026
申请日：2000-06-19
Applicant: IBM
Inventor： YAMADA ATSUSHI , INOUE KEISUKE , ITO TAKAYUKI
Abstract: PROBLEM TO BE SOLVED: To make efficiently generable meshes of high quality by taking existing meshes as a model when generating meshes for a prescribed shape model. SOLUTION: The mesh generation system 10 which generates meshes to be used for finite element analysis is provided with a mesh characteristic extraction part 11 which takes existing meshes as the input to extract characteristics of these meshes and a mesh generation part 13 which takes the shape model as a mesh generation object as the input to generate meshes for this shape model on the basis of characteristics of existing meshes extracted by the mesh characteristic extraction part 11.
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公开(公告)号：JP2001022956A
公开(公告)日：2001-01-26
申请号：JP19130899
申请日：1999-07-06
Applicant: IBM
Inventor： INOUE KEISUKE , ITO TAKAYUKI , YAMADA ATSUSHI , FURUHATA TOMOTAKE
Abstract: PROBLEM TO BE SOLVED: To automatically group many faces constituting a three-dimensional shape into a plurality of areas, while reflecting the intention of a designer. SOLUTION: A clustering part 32 accepts shape models, respectively showing faces constituting a three-dimensional shape and constraint condition data showing which faces among these faces has to be absolutely included in a different (or same) cluster. The part 32 first selects faces that must necessarily be included in the same cluster from a shape model DB 26 and prepares an initial cluster by combining them. Furthermore, the part 32 successively combines clusters with one another the directions of normal lines of which are near and which give smooth frame lines after being combined, and outputs a cluster respectively guaranteeing the area which is equal to or larger than an appropriate area as the final processing result.
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公开(公告)号：JPH10334265A
公开(公告)日：1998-12-18
申请号：JP12445897
申请日：1997-05-14
Applicant: IBM
Inventor： YAMADA ATSUSHI , INOUE KEISUKE , ITO TAKAYUKI , FURUHATA TOMOTAKE
Abstract: PROBLEM TO BE SOLVED: To provide a curved meshing method which can mesh a trim curved surface and a complicated curved surface shape, can control the size distribution of elements to be generated, can generate the triangle elements of designated shapes and also can attain a fully automatic method. SOLUTION: At first, a curved surface to be meshed is inputted together with the tensors set at each point on time curved surface. Then a bubble is generated in a parameter space corresponding to the curved surface in response to the tensor that is deformed according to the correspondence relation between the curved surface and the parameter space. The bubble is moved in the parameter space by the inter-bubble force that is designated by a prescribed rule and then deformed by means of a deformed tensor. At the same time, the number of bubbles is controlled. Thus, the bubbles are stably arranged in the parameter space. Then the connection relation is decided in the parameter space for the mesh nodes, i.e., the center points of bubbles arranged in the parameter space. Finally, a mesh is generated on the curved surface based on the positions and the connection relation of mesh nodes.
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