公开(公告)号：US20200055252A1

公开(公告)日：2020-02-20

申请号：US16105459

申请日：2018-08-20

申请人： James LEWICKI ,  William COMPEL ,  Daniel TORTORELLI ,  Felipe FERNANDEZ-AYALA

发明人： James LEWICKI ,  William COMPEL ,  Daniel TORTORELLI ,  Felipe FERNANDEZ-AYALA

IPC分类号： B29C64/393 ,  B33Y50/02 ,  G06F17/50 ,  G06T17/20

摘要： The present disclosure relates to a system for optimizing an additive manufacturing (AM) process. The system may use a printing component for using a material to form a component in a layer-by-layer process. An electronic controller may control movement of one of the printing component or a substrate on which the component is being formed, in a manner to optimize a toolpath for the printing component as each layer of the component is formed. Optimization operations are performed using an optimization subsystem which enables manufacturability constraints, as well as optimized toolpaths for each layer of the component, to be defined using contours of a level-set function. The level-set function may be used to define the optimized toolpaths within a fixed, predetermined grid, and the optimized toolpaths then used to generate suitable code for controlling movement of the printing component relative to the substrate to create the part or structure in a layer-by-layer process, using the optimized toolpaths.

公开(公告)号：US20100274537A1

公开(公告)日：2010-10-28

申请号：US12767598

申请日：2010-04-26

申请人： Chau H. Le ,  Julian A. Norato ,  Tyler E. Bruns ,  Christopher Ha ,  Daniel Tortorelli

发明人： Chau H. Le ,  Julian A. Norato ,  Tyler E. Bruns ,  Christopher Ha ,  Daniel Tortorelli

IPC分类号： G06F17/50

CPC分类号： G06F17/5018

摘要： A method (10) for performing stress-based topology optimization of a structure (2, 102, 202) on a computational device (302) is provided. Upon receiving a problem definition of the structure (2, 102, 202) from an input device (304) coupled to an input of the computational device (302), the method (10) may generate a density filter, interpolation schemes for stiffness, volume and stress, a global stress measure, an adaptive normalization scheme and a regional stress measure, to determine an optimized stress-based solution to the problem defined. The method (10) may further enable the optimized solution to be rendered for display at an output device (306) coupled to an output of the computational device (302).

摘要翻译： 提供了一种用于在计算设备（302）上执行结构（2,102,202）的基于应力的拓扑优化的方法（10）。 在从耦合到计算设备（302）的输入的输入设备（304）接收到结构（2,102,202）的问题定义之后，方法（10）可以生成密度滤波器，用于刚度的内插方案， 体积和压力，全球压力测量，自适应归一化方案和区域应力测量，以确定针对定义的问题的优化的基于应力的解决方案。 方法（10）还可以使得优化解被渲染以在耦合到计算设备（302）的输出的输出设备（306）处显示。

公开(公告)号：US06651935B2

公开(公告)日：2003-11-25

申请号：US10170225

申请日：2002-06-12

申请人： Eric Loth ,  Philippe H. Geubelle ,  Scott R. White ,  Andrew G. Alleyne ,  Stephen T. Mcllwain ,  J. Craig Dutton ,  Daniel Tortorelli ,  David Davis

发明人： Eric Loth ,  Philippe H. Geubelle ,  Scott R. White ,  Andrew G. Alleyne ,  Stephen T. Mcllwain ,  J. Craig Dutton ,  Daniel Tortorelli ,  David Davis

IPC分类号： B64C2108

CPC分类号： B64C23/04 ,  B64C21/025 ,  B64C2230/06 ,  B64C2230/08 ,  B64C2230/20 ,  B64C2230/22 ,  B64C2230/24 ,  Y02T50/166

摘要： Apparatus for controlling shock/boundary-layer interactions created by a supersonic shock on a surface of a structure, includes a cavity formed in the structure and having an opening on the surface. A plate is attached to the surface and covers the opening. A plurality of flaps are formed on the plate and is operable to cooperatively close the opening in response to subsonic airflow condition over the flaps, and open the opening to permit airflow through the cavity in response to supersonic airflow conditions over the flaps.