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1. 发明授权

US08467978B2 Identifying features on a surface of an object using wavelet analysis 有权
标题翻译：使用小波分析识别对象表面上的特征
公开(公告)号：US08467978B2
公开(公告)日：2013-06-18
申请号：US12872389
申请日：2010-08-31
申请人： Michael David Huffman , Andrew James Booker , Thomas A. Hogan , Alan K. Jones , Bruce C. Andrews
发明人： Michael David Huffman , Andrew James Booker , Thomas A. Hogan , Alan K. Jones , Bruce C. Andrews
IPC分类号： G01B21/20 , G01B21/30 , B23Q17/20 , G06F11/30 , G06F19/00
CPC分类号： G01B11/30 , G01B21/20 , G01B21/30 , Y10T29/49771
摘要： A method and apparatus for inspecting a surface of an object. Data from measuring the surface of the object is obtained to form surface data for the object. A range of frequencies for features on the object is selected based on a range of distances between adjacent peaks for the features. The features are formed by a tool moving along a number of paths. Desired surface data for the features is obtained from the surface data using the range of frequencies selected. A determination is made as to whether the desired surface data for the features meets a policy specifying a desired surface for the object. In response to an absence of a determination that the desired surface data for the features meets the policy, the object is reworked.
摘要翻译：一种用于检查物体表面的方法和装置。获得测量对象表面的数据，以形成对象的表面数据。基于特征的相邻峰之间的距离范围来选择对象上的特征的频率范围。特征由沿着多个路径移动的工具形成。使用所选频率的范围，从表面数据中获得要素的所需表面数据。确定特征的期望表面数据是否满足指定对象的期望表面的策略。响应于不存在用于特征的所需表面数据满足策略的确定，对象被重新加工。

2. 发明申请

US20100177103A1 Constructing Computer Aided Design Models From Procedurally Defined Curve and Surface Lofts 有权
标题翻译：从程序定义的曲线和表面阁楼构建计算机辅助设计模型
公开(公告)号：US20100177103A1
公开(公告)日：2010-07-15
申请号：US12351250
申请日：2009-01-09
申请人： Thomas A. Grandine , Thomas A. Hogan
发明人： Thomas A. Grandine , Thomas A. Hogan
IPC分类号： G06T11/20
CPC分类号： G06T11/203 , G06F17/50 , G06T17/20
摘要： The advantageous embodiments provide a computer implemented method, apparatus, and computer program product for constructing a computer aided design model. User input is received that contains a callback function and a required accuracy. The callback function prescribes a procedurally defined geometry and the required accuracy specifies the degree of accuracy needed for the computer aided design model. The callback function is sampled at a number of points to form sampled points and a candidate curve is constructed that approaches the sampled points. A determination is made as to whether the candidate curve meets the required accuracy.
摘要翻译：有利的实施例提供了一种用于构建计算机辅助设计模型的计算机实现的方法，装置和计算机程序产品。接收到包含回调函数和所需精度的用户输入。回调函数规定了程序定义的几何形状，所需的精度指定了计算机辅助设计模型所需的准确度。回调函数在多个点进行采样以形成采样点，构建接近采样点的候选曲线。确定候选曲线是否满足要求的精度。

3. 发明授权

US08417485B2 Constructing computer aided design models from procedurally defined curve and surface lofts 有权
标题翻译：从程序上定义的曲线和曲面阁楼构建计算机辅助设计模型
公开(公告)号：US08417485B2
公开(公告)日：2013-04-09
申请号：US12351250
申请日：2009-01-09
申请人： Thomas A. Grandine , Thomas A. Hogan
发明人： Thomas A. Grandine , Thomas A. Hogan
IPC分类号： G06F17/50
CPC分类号： G06T11/203 , G06F17/50 , G06T17/20
摘要： The advantageous embodiments provide a computer implemented method, apparatus, and computer program product for constructing a computer aided design model. User input is received that contains a callback function and a required accuracy. The callback function prescribes a procedurally defined geometry and the required accuracy specifies the degree of accuracy needed for the computer aided design model. The callback function is sampled at a number of points to form sampled points and a candidate curve is constructed that approaches the sampled points. A determination is made as to whether the candidate curve meets the required accuracy.
摘要翻译：有利的实施例提供了一种用于构建计算机辅助设计模型的计算机实现的方法，装置和计算机程序产品。接收到包含回调函数和所需精度的用户输入。回调函数规定了程序定义的几何形状，所需的精度指定了计算机辅助设计模型所需的准确度。回调函数在多个点进行采样以形成采样点，构建接近采样点的候选曲线。确定候选曲线是否满足要求的精度。

4. 发明授权

US07333109B2 System, method and computer program product for modeling at least one section of a curve 有权
标题翻译：用于对曲线的至少一个部分进行建模的系统，方法和计算机程序产品
公开(公告)号：US07333109B2
公开(公告)日：2008-02-19
申请号：US10309969
申请日：2002-12-04
申请人： Thomas A. Grandine , Thomas A. Hogan
发明人： Thomas A. Grandine , Thomas A. Hogan
IPC分类号： G06T11/20 , G06F19/00
CPC分类号： G06T11/203
摘要： A system, method and computer program product are provided for modeling at least one section of a curve. Each section can be modeled by initially providing a pair of positions (fi, fi+1) of the section of the curve including associated directions (di, di+1) and curvatures (κi, κi+1). Then, points b0, b1, b2, b3 and b4 can be identified based upon the pair of positions (fi, fi+1) and associated directions (di, di+1) and curvatures (κi, κi+1). Thereafter, a quartic interpolant p(t) can be determined over an interval (i≦t≦i+1) based upon points b0, b1, b2, b3 and b4 to thereby model the section of the curve. The quartic interpolant can be determined such that the interpolant p(t) has a position, direction and curvature equal to fi, di and κi, respectively, at t=i, and the interpolant p(t) has a position, direction and curvature equal to fi+1, di+1, and κi+1, respectively, at t=i+1.
摘要翻译：提供了用于对曲线的至少一个部分进行建模的系统，方法和计算机程序产品。每个部分可以通过初始提供包括相关联的方向（d i）的曲线的部分的一对位置（f i，i，i，i，（i + 1）和曲率（kappa，i，i，i + 1）。然后，点b 0，b 1，b 2，b 3 3和b 4，可以基于一对位置（f i，i，i，i + 1）和相关联的方向（d i，i， SUB＆gt; i + 1＆gt;）和曲率（kappa，i，i + 1）。此后，可以基于点b 0，b 1，b 2的区间（i <= t i = 1 + 1）来确定四次内插器p（t） 2＆lt; 2＆gt;，b 3＆lt; 3＆gt;和b 4＆gt;之间，从而对曲线的部分进行建模。可以确定四次内插器，使得内插器p（t）具有等于f i，i i，i i的位置，方向和曲率， SUB>，在t = i，并且内插p（t）具有等于f 1 i + 1，i i + 1的位置，方向和曲率，和kappa i + 1分别在t = i + 1。

5. 发明申请

US20120053854A1 Identifying Features on a Surface of an Object Using Wavelet Analysis 有权
标题翻译：使用小波分析识别对象表面上的特征
公开(公告)号：US20120053854A1
公开(公告)日：2012-03-01
申请号：US12872389
申请日：2010-08-31
申请人： Michael David Huffman , Andrew James Booker , Thomas A. Hogan , Alan K. Jones , Bruce C. Andrews
发明人： Michael David Huffman , Andrew James Booker , Thomas A. Hogan , Alan K. Jones , Bruce C. Andrews
IPC分类号： G01B11/30 , B23Q17/00
CPC分类号： G01B11/30 , G01B21/20 , G01B21/30 , Y10T29/49771
摘要： A method and apparatus for inspecting a surface of an object. Data from measuring the surface of the object is obtained to form surface data for the object. A range of frequencies for features on the object is selected based on a range of distances between adjacent peaks for the features. The features are formed by a tool moving along a number of paths. Desired surface data for the features is obtained from the surface data using the range of frequencies selected. A determination is made as to whether the desired surface data for the features meets a policy specifying a desired surface for the object. In response to an absence of a determination that the desired surface data for the features meets the policy, the object is reworked.
摘要翻译：一种用于检查物体表面的方法和装置。获得测量对象表面的数据，以形成对象的表面数据。基于特征的相邻峰之间的距离范围来选择对象上的特征的频率范围。特征由沿着多个路径移动的工具形成。使用所选频率的范围，从表面数据中获得要素的所需表面数据。确定特征的期望表面数据是否满足指定对象的期望表面的策略。响应于不存在用于特征的所需表面数据满足策略的确定，对象被重新加工。

6. 发明申请

US20090152392A1 PARAMETRIC GEOMETRY MODEL FOR A BLENDED WING BODY 有权
标题翻译：用于混合身体的参数几何模型
公开(公告)号：US20090152392A1
公开(公告)日：2009-06-18
申请号：US11958143
申请日：2007-12-17
申请人： Thomas A. Hogan , Christopher K. Droney , Dino Roman
发明人： Thomas A. Hogan , Christopher K. Droney , Dino Roman
IPC分类号： B64C1/00
CPC分类号： B64C39/10 , B64C2039/105 , B64F5/00 , G06F17/5095
摘要： Lofting of a Blended Wing Body air vehicle is accomplished by first determining the required payload volume of the air vehicle. The payload volume is then analyzed to determine a list of corner points of the payload volume. The list of points is passed to a Loft Module as keep-out points and a body portion of the blended wing body is established using a faceted minimum volume which encloses all of the provided keep-out points. A trapezoidal wing shape and size is then determined to accommodate aerodynamic performance requirements. A leading edge of the body portion and trapezoidal wing leading edge are trimmed and a trailing edge of the body portion and trapezoidal wing trailing edge are blended. A leading edge elevation is established and with leading edge radius as an input all other point coordinates and all tangents and remaining curvatures to smoothly enclose the payload volume in a first set of aerodynamic sections are defined. The aerodynamic requirements of the trapezoidal wing including Wing Thickness, Camber, Twist and Shear establish a second set of aerodynamic sections and sections in a transition region between the body portion and the trapezoidal wing are then defined. The blended wing body is then lofted based on the first plurality of sections, second plurality of sections and transition sections.
摘要翻译：混合翼的车身通过首先确定空中车辆的所需有效载荷体积来实现车身空中车辆。然后分析有效载荷体积以确定有效载荷体积的角点列表。点数列表作为保留点传递给阁楼模块，并且使用包围所有提供的保留点的面最小体积来建立混合翼体的身体部分。然后确定梯形翼形和尺寸以适应空气动力学性能要求。主体部分和梯形翼前缘的前缘被修剪，并且主体部分的后缘和梯形翼后缘被混合。确定了前缘高程，并以前缘半径作为输入，定义所有其他点坐标以及所有切线和剩余曲率以平滑地将有效负载体积包围在第一组空气动力学截面中。然后定义梯形翼片的空气动力学要求，包括翼厚度，弯度，扭转和剪切，建立第二组空气动力学截面和在主体部分和梯形翼之间的过渡区域中的截面。然后，混合翼体基于第一多个部分，第二多个部分和过渡部分而放置。

7. 发明授权

US07518609B2 System, method and computer program product for modeling a transition between adjoining surfaces 有权
标题翻译：用于建模相邻表面之间过渡的系统，方法和计算机程序产品
公开(公告)号：US07518609B2
公开(公告)日：2009-04-14
申请号：US11420581
申请日：2006-05-26
申请人： Thomas A. Grandine , Thomas A. Hogan
发明人： Thomas A. Grandine , Thomas A. Hogan
IPC分类号： G09G5/00 , G06T11/20 , G06T15/40
CPC分类号： G06T17/30
摘要： According to one aspect of exemplary embodiments of the present invention, a method is provided for modeling a transition between adjoining surfaces. The method includes determining a curve of intersection of two adjoining surfaces, where the curve includes a plurality of points. For each of at least some of the points, the method includes selecting a point of the curve of intersection, and determining end points of a section of the transition located at the selected point, where each end point is located on a respective one of the adjoining surfaces. The method also includes determining a shape of the section of the transition, where the shape of the section for each of at least some of the points models the transition between the adjoining surfaces. The transition is curvature continuous with a first curvature at the end points and a second, different curvature at a portion therebetween.
摘要翻译：根据本发明的示例性实施例的一个方面，提供了一种用于对相邻表面之间的过渡进行建模的方法。该方法包括确定两个相邻表面的交点的曲线，其中曲线包括多个点。对于至少一些点中的每一个，所述方法包括选择交叉曲线的点，以及确定位于所选择的点处的转变的部分的终点，其中每个终点位于相应的一个相邻的表面。该方法还包括确定过渡部分的形状，其中至少一些点中的每一个的部分的形状对相邻表面之间的过渡进行建模。该转变是在端点处具有第一曲率的连续曲率和在它们之间的部分处的第二不同曲率。

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