The use of Pro/ENGINEER Advanced Surfaces in creating 3D geometry.

Transcription

1 The use of Pro/ENGINEER Advanced Surfaces in creating 3D geometry.

2 Who am I? Victor Haans Working for USG Innotiv Division: Product Development Function : Design Engineer Experience: 13 years in Product Development, approximately 10 years with pro/engineer

3 Introduction USG Innotiv (1) USG Innotiv Product Development Division of USG Innotiv (1500 people) Part of USG People( people) Product Development Development Capacity Consulting Training

4 Introduction USG Innotiv (2) PD Consultancy & Training (services) Market leader Benelux for services of PTC products Implementation Migration Process Support Certified implementer / migrator of PTC database applications Certified Trainer Partner of PTC Products Certified Service Partner in the Benelux Pro/ENGINEER,Pro/INTRALINK, Windchill

5 Goal of this presentation Not familiar with Surface Modelling?: A brief overview of the added value of surface modelling compared to solid modelling Familiar with Surface Modeling?: Demonstration, with some new features in WF4 to5

6 Overview When solid modeling, when surface modeling? Further advantages of surfaces Forms of surface modeling: Style feature/isdx vs. Advanced Surface modelling Level of Parametrisation Analysis of surfaces Demonstration of (new) features

7 What is Surface Modelling? Creating geometry with interconnected surfaces without thickness. In pratice: The contour is first defined as a surface and then made solid

8 Solids vs. Surface When surfaces, when solids? > This question is not easy to answer Eventually almost all parts end up as solids, but sometimes the way to get here is easier in surfaces

9 Solids vs. Surface: Rules of Thumb SOLIDS Simple single Curved geometry (developable) No complicated transitions between surfaces (rounds, curvature*) Geometry can clearly be defined in orthoganal views Solid geometry, thickness-hight/width ratio is small Feature Creation often quicker Outside Surface is Rigid Selection of all outside geometry takes time

10 Solids vs. Surface: Rules of Thumb SURFACES Complicated, double curved geometry Complicated transitions between surfaces (Tangent, C2) Geometry is hard to catch in orthoganal views Thin shell like geometry Somewhat more time consuming More tweaking possibilities Merged quilt, selection goes fast

11 Example

12 Further Advantages Some things can only be done in Surfaces: Contour in a skelet model Patch/replace or solidify feature Round transitions In general: Surfaces are better when the outer contour is important and needs to be defined first. Surfaces regenerate faster (patterns!)

13 Example Skelet model split (Publish Geometrie)

14 Adv surfaces vs Style feature Style Feature/ ISDX On the designers side Final form does not exist Concept orientated Visualisatie Free form modelling, drag and drop One Super Feature Advanced surfacing On the constructors side Final form exists, end result Production model, Drawings Parametric control over model. More features

15 Parametrisation Parametric Control over a surface exists when all characteristics of a shape are defined in dimensions and these dimensions are coupled

16 Parametrisation Freeform surface (op solid) Style feature Swept blend Blend Sweep Var Sect Sweep Boundary surface Extrude/revolve Fill Parametric control

17 Analysis tools The most important ones: Curvature Offset Shaded Curvature Reflection >> Demonstration

18 Curvature Wikipedia: Curvature continuity further requires the end vectors to be of the same length and rate of length change. Highlights falling on a curvaturecontinuous edge do not display any change, causing the two surfaces to appear as one. This can be visually recognized as perfectly smooth.

19 Demonstration The design is a front panel of a high end design loudspeaker. Finish is High Gloss, white Fluent surface transitions because of esthetics and audio (C2 continuous) 1 woofer, 1 tweeter, 1 bass reflex poort

20 Demonstration

21 Demonstration

22 Thank you for your attention! Questions?