公开(公告)号：US08581902B2

公开(公告)日：2013-11-12

申请号：US12354290

申请日：2009-01-15

Applicant: Olivier Zegdoun ,  Bruce W. Holway ,  Amit Mandloi ,  Adarsh Krishnamurthy

Inventor： Olivier Zegdoun ,  Bruce W. Holway ,  Amit Mandloi ,  Adarsh Krishnamurthy

IPC: G06T17/00

CPC classification number: G06T17/20 ,  G06F17/50 ,  G06T15/40 ,  G06T17/00

Abstract: A computer-implemented method and system reduces size of a data structure of a computer-aided design (CAD) model. Given a CAD model formed of a plurality of modeling elements, the method and system provide one or more geometric entities defining modeling elements of the CAD model. The geometric entities have corresponding graphical entities configured to display the CAD model. For each modeling element, the method and system determine visibility of the modeling element and produce a reduced data structure by storing in the structure graphic data representing the graphical entities and geometric data of only certain ones of the geometric entities determined as a function of visibility of the corresponding modeling elements.

公开(公告)号：US20130006586A1

公开(公告)日：2013-01-03

申请号：US13172050

申请日：2011-06-29

Applicant: Shrikant Vitthal Savant ,  Kyeong Hwi Lee

Inventor： Shrikant Vitthal Savant ,  Kyeong Hwi Lee

IPC: G06F17/50

CPC classification number: G06F17/5086 ,  Y02T10/82

Abstract: Automatically computing the reflected mass or reflected inertia of a computer-aided design model comprised of a motor includes executing a simulation of the model, using the simulation results to compute the reflected mass or reflected inertia, and treating the non-motor parts of the model as a virtual body having a time-varying mass or a time-varying inertia. The mass or inertia of the virtual body at a specific time is the reflected mass or reflected inertia, respectively, of the model at the specific time.

Abstract translation: 自动计算由马达组成的计算机辅助设计模型的反射质量或反射惯量包括执行模型的模拟，使用模拟结果计算反射质量或反射惯性，以及处理模型的非电机部分 作为具有时变质量或时变惯性的虚拟体。 虚拟体在特定时间的质量或惯性分别是模型在特定时间的反射质量或反射惯量。

公开(公告)号：US07571079B2

公开(公告)日：2009-08-04

申请号：US11336465

申请日：2006-01-20

Applicant: Ricardo Chin ,  Robert Siegel

Inventor： Ricardo Chin ,  Robert Siegel

IPC: G06F17/50

CPC classification number: G06T17/10 ,  G06F17/50

Abstract: Processing data in a computer-aided design (CAD) system includes determining that a feature of a three-dimensional model has a condition that requires correction. The condition is automatically corrected by performing an action. The action may be an action that reorders a sequence of features in the three-dimensional model, an action that changes at least one parameter of the feature, an action that deletes a feature reference, or an action that changes a feature reference. Furthermore, the action may have one or more constraints that bound the action to a set of features that are directly and indirectly related to the feature on which the action operates.

Abstract translation: 在计算机辅助设计（CAD）系统中处理数据包括确定三维模型的特征具有需要校正的条件。 通过执行动作自动更正条件。 该动作可以是重新排列三维模型中的特征序列的动作，改变特征的至少一个参数的动作，删除特征参考的动作或改变特征参考的动作。 此外，动作可以具有一个或多个约束，其将动作绑定到与动作操作的特征直接和间接相关的一组特征。