GSD-瓶子实例

nullGenerative Shape DesignGenerative Shape DesignVersion 5 Release 13 August 2004Course PresentationCourse PresentationObjectives of the course This course covers tools for surface design included in the Generative Shape Design Workbench that are not present in the Wireframe and Surface Design Workbench. At the end of the course, the student will be able to model complex fillets and analyze surface quality. Targeted audience Mechanical Designers Prerequisites Wireframe and Surface DesignTable of Contents (1/2)Table of Contents (1/2)Introduction to Generative Shape Design p.5 Creating Wireframe Geometry p.13 Creating an Extremum p.16 Creating a Polar Extremum p.20 Creating a Reflect Line Methodology p.23 Creating a Connect Curve p.26 Creating a Spine p.32 Creating a Parallel Curve onto a Support within GSD p.36 Extracting Multiple Edges from a Sketch p.40 Tools for Wireframe Geometry Creation p.42 Creating Surfaces p.58 Creating Swept Surfaces p.62 Creating an Adaptative Swept Surface p.86Table of Contents (2/2)Table of Contents (2/2)Performing Operations p.95 Joining Elements p.98 Healing Elements p.104 Smoothing Curves p.111 Extracting Elements p.117 Federating Elements p.120 Creating Fillets p.126 Inverting Orientation p.151 Creating Laws p.154 Using Analysis Tools p.159 Managing Features and Open Bodies p.189 Hybrid Design (Working with Hybrid Parts) p.208 Introduction to Generative Shape DesignIntroduction to Generative Shape DesignIn this lesson you will see V5 Generative Shape Design user interface and basic functions Generative Shape Design Workbench Generative Shape Design Interface Generative Shape Design Terminology General Process To Sum Up进入操作界面进入操作界面从目录栏选择 Start/Shape/Generative Shape Design12通过点击 Workbench 命令进入自定义的对话框。GSD 概述GSD 概述外形设计工具...进入草图图标...目录树工具栏Open body下是非实体 (i.e. 点, 线, 面) Generative Shape Design (1/2)Generative Shape Design (1/2)Generative Shape Design (2/2)Generative Shape Design (2/2)TerminologyTerminology The PartBody is the default Body for a Part where Solids are stored The Open Body is where non-solids (points, curves, surfaces) are stored A Part is a combination of one or more Bodies and Open Bodies Wireframe features Surface features Group :Set of surfacic featuresGeneral ProcessGeneral ProcessFrom Assembly > create a new part (Top-down approach)or Create a new part > insert in assembly (Bottom-up approach)Go into the Sketcher to create the planar Wireframe GeometryCreate Surfaces on the WireframeUse GSD to create all required 3D Wireframe GeometryOptional : Join Multiple Surfaces then Offset a solid43215Use GSD to create Planes in 3D to support 2D Wireframe geometryTo Sum Up ...To Sum Up ...You have seen CATIA V5 Generative Shape Design : How to access the workbench. Its user interface and tools. The terminology that will be used. The general design process.Creating Wireframe GeometryCreating Wireframe GeometryIn this lesson WFS Wireframe versus GSD Wireframe Review of WFS Wireframe Geometry Creating an Extremum Creating a Polar Extremum Creating a Reflect Line Methodology Creating a Connect Curve within GSD Creating a Spine Creating a Parallel Curve onto a Support within GSD Extracting Multiple Edges from a Sketch. Tools for Wireframe Geometry Creation To Sum UpWFS 与 GSD 比较WFS 与 GSD 比较WFS 和 GSD 是有着很多相同之处的不同的工作界面。 在 GSD 中有很多命令在 WFS 中是没有的，这些很多都是高级命令。在 GSD 中不一样的地方。WFSGSD他们的功能有很多相同的地方，但 GSD 比 WFS 更多一些。Review of WFS Wireframe GeometryReview of WFS Wireframe GeometryFrom this page you can review the tools covered in the Wireframe & Surface Design Course which are also included in the Generative Shape Design Workbench. Creating Points in 3D Creating Lines in 3D Creating Planes in 3D Creating Curves in 3D创建极值点创建极值点In this Skillet you learn what is an Extremum and how to create it.Why Create an Extremum?Why Create an Extremum?In order to help CATIA find the maximum or minimum point of a curve or surface along any direction chosen by the user.Maximum Extremum on a Curve along the Z AxisMinimum Extremum on a Surface along the X AxisThe element might be a sketch, a 3D curve or line, a surface or a solid face.Maximum Extremum on a solid face along the Z Axis创建极值点创建极值点12选择极值图标。5选择要创建极值的元素3点 OK 确定。极值操作就会被加在目录树上。选择线或者面来规定方向根据需要选择最大值和最小值4Additional Information on ExtremumAdditional Information on ExtremumIf the element is a surface, you may specify two others optional directions.If the Element is a surface, according to the chosen direction you can obtain a curve or a line as Extremum.Creating a Polar ExtremumCreating a Polar ExtremumIn this Skillet you learn what is a Polar Extremum and how to create it.极坐标上的极值极坐标上的极值任何一条曲线都可以通过极坐标来表示（通过极半径和极角表示）。 he polar extremum function allows you to find the points on the curve corresponding to :在指定方向上的最小极径：在指定方向上的最大极径：到指定方向的最小极角：到指定方向的最大极角：The polar extremum is calculated in an axis system defined by : An origin. A reference direction.Creating a Polar ExtremumCreating a Polar Extremum1选择命令。2选择类型。3选择要创建极值的线和支撑面。4选择方向点5定义参考坐标轴。6Click OK to confirm the polar extremum creation.Creating a Reflect Line MethodologyCreating a Reflect Line MethodologyYou will learn what is a Reflect Line and how create it.What is a Reflect LineWhat is a Reflect LineReflect lines are curves for which the normal to the support surface in each point presents the same angle with a specified direction. It is very useful to find the parting plane of a complex surface.If we perform a Draft analysis on this part, we can see, thanks to the red areas that the part is non extractible. Thanks to the Reflect Line curve, we can cut the part in two extractible parts.Creating a Reflect LineCreating a Reflect Line12Select a support surface and a direction.4Click OK to confirm reflect line creationKey in an angle representing the value between the selected direction and the normal to the surface.Support3Reflect linesYou can define one of the X,Y or Z axis by opening a contextual menu in the Direction field.DirectionYou can select the Normal option for the angle to be computed between the normal to the support and the direction.Creating a Connect CurveCreating a Connect CurveYou will learn how to create a connect curve within the Generative Shape Design workbench.通过参考曲线进行曲线连接通过参考曲线进行曲线连接设置参考曲线。需要连接的线。通过参考线来连接曲线粉色线 通过 粉色 的参考线进行连接； 蓝色线 通过 蓝色 的参考线进行连接； 绿色线 通过 绿色 的参考线进行连接。创建曲线连接 ：Normal 类型创建曲线连接 ：Normal 类型13选择第一条需要连接的线和这条线上的一个点 ：5如果点击红色箭头，则连接的方向会变为相反的方向4选择第二条需要连接的线和这条线上的一个点 ：2选择 normal 的连接类型 ：Creating a Connect Curve (2/3): Normal TypeCreating a Connect Curve (2/3): Normal Type6Define the type of continuity between each curve and the connect curve. The type of continuity can be different for each curve.7Define the tension of the connect curve at each point. You can key in the tension value or use the graphic manipulators.8You can select the ‘Trim elements’ option to trim the two construction curves and join them to the connect curve.Click OK to confirm connect curve creation.9Creating a Connect Curve (3/3): Normal TypeCreating a Connect Curve (3/3): Normal TypeYou will find below various combinations of continuity between the two curves and the connect curve. Curve 1 : Tangency Curve 2 : TangencyCurve 1 : Tangency Curve 2 : PointCurve 1 : Tangency Curve 2 : CurvatureCurve 1 : Point Curve 2 : PointCurve 1 : Point Curve 2 : CurvatureCurve 1 : Curvature Curve 2 : Curvature创建曲线连接 ：参考曲线类型创建曲线连接 ：参考曲线类型13选择曲线连接所需的参考线 ：5点 OK 确定 相似的曲线 :4选择要连接的两条线和线上的点 ：2在对话框中选择参考曲线类型 ：创建 Spine 线创建 Spine 线What is a Spine ?What is a Spine ?ProfileGuide CurveIn this Swept surface, the Spine is, by default, the guide curve. Each section of the swept surface is perpendicular to this Guide CurveSwept sections are perpendicular to the guide curveThe swept sections may be oriented by another Spine (not the default one). For instance you want to get the swept sections perpendicular to the green spine:SpineSwept sections are perpendicular to the Spine.For the Swept and Lofted surface, there is a default spine (the guide or a computation from the guides). If you want to fix an orientation for your surface sections you will have to define a Spine.The Spine icon will allow you to create a curve that will be use later as a spine There are two ways to build a spine :Curve normal to a list of ordered planes or planar curvesSpine curve computed from several guide curves在平面和曲线之间创建中心线在平面和曲线之间创建中心线12选择中心线图标选择平面或者区线轮廓3确定也可以选择第一个平面或曲线上的一个点作为起始点，spine 线则从这一点开始。用这三个键来添加，删除和改变顺序。通过引导线做中心线通过引导线做中心线12选择 Spine 图标。在引导线栏内选择添加。3点 ok ，确定 spine 线。选择引导线。4利用默认的 spine 线扫描。利用创建的 spine 线扫描Creating a Parallel Curve onto a Support Within GSDCreating a Parallel Curve onto a Support Within GSDYou will learn how create various parallel curves.创建平行曲线创建平行曲线12选择平行类型 ：Geodesic : 两条线之间的距离通过支撑面上的距离确定的。参考曲线欧拉平行曲线测地线平行曲线支撑面Euclidean : 两条线之间的距离是通过空间距离确定的参考曲线平行曲线测地线欧拉类型Creating a Curve Parallel to another on a Support (2/3)Creating a Curve Parallel to another on a Support (2/3)3Select the reference curve and the support plane or surface.Click OK to continue The created curve is defined as an Object, i.e. the reference for creating the other curvesSpecify the Offset by entering a value or using the graphic manipulator (green arrows).4Reference curveSupportIf you want to create several parallel curves separated by the same offset check the option Repeat object after OK If you have chosen the euclidean parallel type, you can choose to offset the curve at a constant distance or according to a law.56Check here to create two parallel curves symmetrically in relation to the reference curve.Select the parallel corner type.Creating a Curve Parallel to another on a Support (3/3)Creating a Curve Parallel to another on a Support (3/3)7Define the number of parallel curves to be created8Click OK to confirm parallel curve creation As many parallel curves as indicated in the Object Repetition dialog box are created, including the object parallel curve. The parallel curves are separated from the object line by a multiple of the offset value. The curve instances are grouped in a new Open Body if you have checked the option.Object parallel curveParallel curve instances in a new Open BodyYou can choose to create or not the instances in a new Open Body. Extracting Multiple Edges from a Sketch.Extracting Multiple Edges from a Sketch.You will learn to extract some geometrical elements from a Sketch.Extracting Multiple EdgesExtracting Multiple Edges12Select the Extract Multiple Edges iconIf you have a sketch containing several elements, you can extract a subpart of these elements to create geometry. Select the geometry of the multi profile sketch that you want to extract3Click on OK, the extract is added to the specification treeClick on this button to delete a sub element of the list创建线框架几何体的工具创建线框架几何体的工具命 令 操作界面Now let us look at some Wireframe tools common to the WFS and GSD Workbenches ...Stacking CommandsStacking CommandsYou will learn how to stack commands while creating wireframe elements.Why Do You Need to Stack Commands ?Why Do You Need to Stack Commands ?What about stacking commands ? You can create the following construction elements: - points, - planes, - intersections. - lines, - projections, You have access to the stacking commands capability while creating: points, - circles, - translations, lines, - conics - rotations, planes, - corners, - symmetry.Stacking commands allows you to create construction elements while creating an element which requires those construction elements.Using mouse button 3 you display a contextual menu listing all the elements you can create using the stacking commands capability.Stacking Commands…Stacking Commands…You define the parameters of the construction element.Let ’s see now the way to stack commands...While creating an element you may need a construction element that you will create on the fly.The construction element is created and selected at the same time.When using the stacking command capability you can check the status of the stack in the Running Commands window.Stacking Commands (1/4)Stacking Commands (1/4)12选择如何进行创建平面。 当建立一些绘制线框架所需要的元素时（点，线，面，圆，弧，圆角等）或者当平移，旋转，镜像时所需要建立一些参考元素，如点，线，面，交点或投影。 这里介绍如何早操会中建立平面 ：3用鼠标右键点击点的对话框，进行点的创造。 定义点的对话框将会出现在操作界面上。Stacking Commands (2/4)Stacking Commands (2/4)4定义创建点的参数。 正在运行的命令窗口也会会出现。5点 OK 确定所创建的点。 平面创建的窗口将会再次出现，所创建的点出现在下栏。在点的对话框旁边有一个点的键用来对点进行编辑。6用鼠标右键进行线的创建。 创建线的对话框也会出现。Stacking Commands (3/4)Stacking Commands (3/4)7定义所要创建线的参数。8如果要创建线上的点也可以通过以上的方法。 运行命令的对话框会变为 :Stacking Commands (4/4)Stacking Commands (4/4)9两点所确定一条直线将会在创建平面对话框内出现。 编辑线的命令图标出现在后面。在线的对话框旁边有一个线的键用来对线进行编辑。10点 OK 确定平面。通过双击目录树上的图标可以对平面进行编辑。Point.1Point.2Point.3Line.1Plane.1Working on a SupportWorking on a SupportYou will learn how to define a planar or non-planar support, work on it with or without a grid and snap to a point.Why Do You Need to Work on a Support ?Why Do You Need to Work on a Support ?What about support ? If you define a plane as a support a grid is displayed and positioned in the plane of the screen. In that case you have access to the ‘Snap to Point’ capability. If you define a surface as a support the elements created after selection of the surface will be located on the surface by default.You can select a plane or a surface to use it as a support for further element creation.Support plane = YZ With the ‘Snap to Point’ capability the created points are located at the nearest intersection of the grid.Support surface = Extrude.1 When you create a point after selecting the surface as a support the Point Definition window automatically displays the option ‘On surface’.Working on a Support – Plane Support (1/3)Working on a Support – Plane Support (1/3)12Select the plane you want to define as a support, here the YZ plane.The Work on Support window is displayed. A Working support.1 feature is added to the specification tree under the Working supports entry.By default the last created working support (current) is displayed in red in the specification tree. The ‘not current’ working supports are displayed in blue.Working on a Support – Plane Support (2/3)Working on a Support – Plane Support (2/3)The Work on Support window changes and displays several options to define the grid.定义每一个小栅格的长度。选择平面定义每个大栅格的总长度Check this option if you want a different primary spacing in the second directionDefine which axis is taken as H direction in the 2D plane3Click OK to confirm grid creation.Set the grid visualization parallel to the screenIf you enter coordinates when the ‘Snap to point’ icon is active, the system does not take the grid into account.4If you want your cursor to move directly to an intersection point of the grid click on the Snap to Point icon.Working on a Support – Plane Support (3/3)Working on a Support – Plane Support (3/3)Here you are creating a point. Note that : - the point type is automatically set to ‘On plane’, - the cursor points only on the grid intersection points.Create an element on the support.5Exit the working support :6Using the Working Supports Activity iconUsing the Set as Not Current option in the contextual menuWorking on a Support – Surface Support (1/2)Working on a Support – Surface Support (1/2)12Select the surface you want to define as a support, here the extruded surface.The Work on Support window is displayed. A Working support.1 feature is added to the specification tree under the Working supports entry.By default the last created working support (current) is displayed in red in the specification tree. The ‘not current’ working supports are displayed in blue.Working on a Support – Surface Support (2/2)Working on a Support – Surface Support (2/2)3Click OK to confirm grid creation.Here you are creating a point. Note that the point type is automatically set to ‘On surface’.Create an element on the support.4Exit the working support :5Using the Working Supports Activity iconUsing the Set as Not Current option in the contextual menuTo Sum Up…To Sum Up…You have reviewed Wireframe construction tools common to both the WFS and GSD Workbenches: Points Lines Planes Curves : Conics Splines Helix Corners Boundary Curves Projection Curves Combine Curves Intersection Curves Polylines and looked at additional tools for Wireframe geometry creation : Stacking Commands Work on SupportYou have seen Wireframe construction Tools specific to the GSD Workbench Creating Extremums Creating a Reflect Line Methodology Creating Connect Curves within GSD Creating a Spine Creating a Parallel Curve onto a Support Within GSD Extracting Multiple Edges from a Sketch创建表面创建表面主要包括 ： Why Do You Need Surfaces WFS Surfaces versus GSD Surfaces Review of WFS Surfaces Creating a Swept Surface Creating an Adaptative Swept Surface To Sum UpWhy Do You Need Surfaces ?Why Do You Need Surfaces ?What about surfaces ? You can create a surface from: a line, curve or sketch other surfacesYou can use basic surfaces either to create a new part or to complete the design of a solid partSurface of revolution created from a profile (Spline) and an axis of revolutionOffset surface created from another surface and a directionFor each type of surface you will also define its limits or the angle of revolutionWFS Surfaces versus GSD SurfacesWFS Surfaces versus GSD SurfacesWireframe & Surface Design and Generative Shape Design are two workbenches which have many common functionalities. Within GSD you will discover new functionalities that are not in WFS and also advanced capabilities in some functions that exist in both workbenches.Functionality specific to the Generative Shape Design workbench.Functionality common to both workbenches but with more capabilities within GSD. WFSGSDReview of WFS SurfacesReview of WFS SurfacesFrom this page you can review the tools covered in the Wireframe & Surface Design Course which are also included in the Generative Shape Design Workbench. Creating a Surface from a profile - Creating a Extruded Surface - Creating a Surface of Revolution - Creating a Sphere Creating a Surface from Boundaries - Creating a Fill Surface - Creating a Blend Surface Creating a Surface from another Surface - Creating an Offset Surface Creating a Lofted SurfaceCreating Swept SurfacesCreating Swept Surfaces Explicit Swept Surfaces Implicit Swept Surfaces You will learn how to create Explicit and Implicit Swept Surfaces within the Generative Shape Design WorkbenchCreating Explicit Type Swept SurfacesCreating Explicit Type Swept SurfacesYou will learn how to create swept surfaces using Any ProfileCreating an Explicit-type Swept Surface (1/7)Creating an Explicit-type Swept Surface (1/7)123建立扫描表面。选择指引线和轮廓线。选择参考平面或参考表面（reference tab），也可以选择一条指引线和锚点与另一条指引线和锚点（Second Guide tab）。选择扫描命令通过默认扫描的轮廓在指引线之间扫过而不改变形状。如果没有选择 spine 线，则系统默认指引线为 spine 线。Creating an Explicit-type Swept Surface (2/7)Creating an Explicit-type Swept Surface (2/7)可以定义一个参考面来控制所扫描轮廓的位置。Using a reference surface :也可以定义一个函数来规定轮廓线和参考面的关系。Creating an Explicit-type Swept Surface (3/7)Creating an Explicit-type Swept Surface (3/7)运用定位和参考面 ： 指引线的坐标系方向与参考面的坐标系方向有一定的关系。 定义位置 ： 轮廓的方向被指引线所固定。不定义位置 ： 当轮廓被指引线所固定时，扫描的方向在轮廓线上或者平行于指引线而穿过轮廓线。绿色的轴坐标系 ：当前轮廓的方向灰色的坐标系是轮廓线的坐标系定轮廓的位置Creating an Explicit-type Swept Surface (4/7)Creating an Explicit-type Swept Surface (4/7)可以通过改变扫描参数来改变轮廓的位置，可以定义新的原点，旋转角度或者新的方向。调整后的坐标系统（绿色）平面为扫描的起始平面。The direction defines the X axis of the positioning axis system.参数定义轮廓位置或45 deg可以旋转指引线的轴系统改变扫描轮廓的位置。Creating an Explicit-type Swept Surface (5/7)Creating an Explicit-type Swept Surface (5/7)In the Position profile mode you can display parameters to modify the position of the sweep profile on the guide curve defining a new origin and a rotation angle or direction.You may want to invert the orientation of the X or Y axes of the positioning axis system.You can select a point defining the origin of the axis system linked t