Patents by Inventor Pascal Hebrard
Pascal Hebrard has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230385484Abstract: A computer-implemented method for designing a sheet part comprising beads. The method comprises providing a CAD model representing the part. The CAD model includes a feature tree. The feature tree has one or more CAD parameters each having an initial value. The method further comprises providing a bead optimization program specified by one or more use and/or manufacturing performance indicators. The one or more indicators comprise one or more objective function(s) and/or one or more constraints. The method further comprises modifying the initial values of the one or more CAD parameters by solving the optimization program using a gradient-based bead optimization method. The optimization method has as free variables the one or more CAD parameters. The optimization method uses sensitivities. Each sensitivity is an approximation of a respective derivative of a respective performance indicator with respect to a respective CAD parameter.Type: ApplicationFiled: May 26, 2023Publication date: November 30, 2023Applicant: DASSAULT SYSTEMESInventors: Peter CLAUSEN, Martin-Pierre SCHMIDT, Claus Bech Wittendorf PEDERSEN, Pascal HEBRARD
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Publication number: 20230315945Abstract: A computer-implemented method for designing a manufacturing product. The method includes obtaining a CAD model representing the manufacturing product. The CAD model includes a feature tree. The feature tree has one or more CAD parameters each having an initial value. The method also includes obtaining an optimization program. The optimization program is specified by one or more use and/or manufacturing performance indicators. The one or more indicators having one or more objective functions and/or one or more constraints. The method further includes modifying the initial values of the one or more CAD parameters by solving the optimization program using a gradient-based optimization method. The optimization method has as free variable the one or more CAD parameters and uses sensitivities. Each sensitivity is an approximation of a respective derivative of a respective performance indicator with respect to a respective CAD parameter.Type: ApplicationFiled: March 22, 2023Publication date: October 5, 2023Applicant: DASSAULT SYSTEMESInventors: Martin-Pierre SCHMIDT, Peter CLAUSEN, Claus Bech Wittendorf PEDERSEN, Pascal HEBRARD
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Patent number: 10885232Abstract: A computer-implemented method designs and manufactures a supporting structure for the packaging of a solid object. The supporting structure comprises a plurality of linear support elements that sustain the solid object inside a packaging container. The method includes: a) providing, as an input, a three-dimensional model of the solid object; b) computing a first cumulative linear mass density distribution of the solid object according to a first axis (x); and c) using said first cumulative linear mass density distribution to determine the positions, along said first axis, of linear support elements oriented transversally to said first axis. The resultant positions enable even distribution of the weight of the solid object among the linear support elements. A computer program product, computer-readable data-storage medium, and CAD system carry out such a method.Type: GrantFiled: June 7, 2018Date of Patent: January 5, 2021Assignee: Dassault SystemesInventors: Pierre Pagliughi, Pascal Hebrard, Rohan Keswani, Patrick Merlat
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Patent number: 10831172Abstract: The embodiments relate to a method for designing a part manufacturable by milling operations. The method comprises providing a topologically optimized 3D modeled part, computing a bounding volume encompassing the topologically optimized 3D modeled part, defining a milling direction of a milling tool, computing a silhouette of the topologically optimized 3D modeled part according to the milling direction, the silhouette comprising a contour, and computing a new contour based on a parameter of the milling tool.Type: GrantFiled: February 11, 2019Date of Patent: November 10, 2020Assignee: DASSAULT SYSTEMESInventors: Pascal Hebrard, Sebastien Cetre, Dominique Coz, Daniel Pyzak
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Publication number: 20190250580Abstract: The embodiments relate to a method for designing a part manufacturable by milling operations. The method comprises providing a topologically optimized 3D modeled part, computing a bounding volume encompassing the topologically optimized 3D modeled part, defining a milling direction of a milling tool, computing a silhouette of the topologically optimized 3D modeled part according to the milling direction, the silhouette comprising a contour, and computing a new contour based on a parameter of the milling tool.Type: ApplicationFiled: February 11, 2019Publication date: August 15, 2019Applicant: DASSAULT SYSTEMESInventors: Pascal HEBRARD, Sebastien CETRE, Dominiqe COZ, Daniel PYZAK
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Publication number: 20180365345Abstract: A computer-implemented method designs a supporting structure for the packaging of a solid object. The supporting structure comprises a plurality of linear support elements suitable to sustain the solid object inside a packaging container. The method includes: a) providing, as an input, a three-dimensional model of the solid object; b) computing a first cumulative linear mass density distribution of the solid object according to a first axis (x); and c) using said first cumulative linear mass density distribution to determine the positions, along said first axis, of a first plurality of said linear support elements oriented transversally to said first axis. The resultant positions enable even distribution of the weight of the solid object among the linear support elements of said first plurality. A computer program product, computer-readable data-storage medium, and CAD system carry out such a method. A supporting structure designed according to embodiments, and its manufacturing method.Type: ApplicationFiled: June 7, 2018Publication date: December 20, 2018Inventors: Pierre Pagliughi, Pascal Hebrard, Rohan Keswani, Patrick Merlat
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Patent number: 9703903Abstract: It is provided a computer-implemented method for designing a folded sheet object, comprising the steps of providing (S10) panels separated by bend lines, including at least four adjacent panels forming a cycle and separated by concurrent bend lines, with predetermined angles between successive bend lines; and determining (S20) a control law linking the angles between the adjacent panels of the cycle, as a function of the predetermined angles between successive bend lines. Such a method improves the design of a folded sheet object.Type: GrantFiled: June 18, 2014Date of Patent: July 11, 2017Assignee: DASSAULT SYSTEMESInventors: Jean-Francois Rameau, Pascal Hebrard
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Publication number: 20140379111Abstract: It is provided a computer-implemented method for designing a folded sheet object, comprising the steps of providing (S10) panels separated by bend lines, including at least four adjacent panels forming a cycle and separated by concurrent bend lines, with predetermined angles between successive bend lines; and determining (S20) a control law linking the angles between the adjacent panels of the cycle, as a function of the predetermined angles between successive bend lines. Such a method improves the design of a folded sheet object.Type: ApplicationFiled: June 18, 2014Publication date: December 25, 2014Inventors: Jean-Francois Rameau, Pascal Hebrard
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Patent number: 8421798Abstract: The invention is directed method of computer-aided design of edges connecting faces of a modeled object, the method comprising a step of:—determining (S100-S130) a structure of subsets of faces and edges of specified convex or concave type, by iteratively disconnecting (¦S120¦) faces connected by edges of one type from a parent subset, whereby said parent subset is decomposed into child subsets comprising either:—a non-connected face; or—faces connected by edges of the other type, in which case edges of said one type are maintained in said child subset, wherein said one type of edges is further alternated at each iteration of disconnecting; and the method further comprising a step of:—processing (S140) the structure from a given parent subset for rounding or filleting the one or more edges connecting child subsets thereof, according to the type of edge as specified in said given parent subset.Type: GrantFiled: August 22, 2008Date of Patent: April 16, 2013Assignee: Dassault SystemesInventors: Jean-Francois Rameau, Joran Maille, Pascal Hebrard
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Publication number: 20110282632Abstract: The invention is directed method of computer-aided design of edges connecting faces of a modeled object, the method comprising a step of:—determining (S100-S130) a structure of subsets of faces and edges of specified convex or concave type, by iteratively disconnecting (¦S120¦) faces connected by edges of one type from a parent subset, whereby said parent subset is decomposed into child subsets comprising either:—a non-connected face; or—faces connected by edges of the other type, in which case edges of said one type are maintained in said child subset, wherein said one type of edges is further alternated at each iteration of disconnecting; and the method further comprising a step of:—processing (S140) the structure from a given parent subset for rounding or filleting the one or more edges connecting child subsets thereof, according to the type of edge as specified in said given parent subset.Type: ApplicationFiled: August 22, 2008Publication date: November 17, 2011Applicant: DASSAULT SYSTEMESInventors: Jean-Francois Rameau, Joran Maille, Pascal Hebrard