icepak-03-geometry

Openings Plates Sources Blocks
Fans
Walls
2D shapes • Rectangular • Circular • Inclined rectangular • Polygon
3D shapes • Prism • Cylinder: uniform/ non-uniform • Polygon: uniform/ non-uniform • Blocks can be Ellipsoid/Elliptical Cylinder
Centre Object - Based on Face Centre Match Face - 2 Dimensions Matched
Match Edge - 1 Dimension Matched C-12
Object Alignment : Icons …
There are two options • Left Click on Icon 4Object gets re-sized during alignment
Polygons - Non-Uniform (high and low face not identical) Top and bottom faces can have different number of vertices but must be parallel
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Shapes in Icepak: Options for 3D shapes - cylinders
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Shapes in Icepak: Options for 2D shapes …
Polygonal Options to increase/decrease number of vertices
Select vertex location with mouse Circular Fans can also have an inner radius for the hub
C-14
Object Alignment: Coordinate snapping
Using Co-ordinate alignment: • Next to the co-ordinates of the geometry in the COG there are options to snap that coordinate to an existing point on an edge in the model. • Co-ordinates can be: • Start (xS,yS,zS) • End (xE,yE,zE) • Length (xL,yL,zL) • Centre (xC,yC,zC) • Vertex To Use: • Click on the “Orange” panel for a coordinate, and then with the mouse click on a point in the model. • Icepak will then set that co-ordinate value to the position selected.
Geometry of an object includes: • Shape, • Position and Size • Local Co-ordinates • Orientation if 2-D
C-4
Shapes in Icepak: Object geometry window
• Current object’s geometric details are displayed in the bottom right hand corner of the GUI • Click on Apply or Enter the keyboard after making changes Current object
Heat Exch. Grilles Resistances
C-3
Shapes in Icepak: Altering geometries of objects
The shape, position, size and orientation of an object may be modified: • Using the Current Object Geometry (COG) window located at the bottom right hand corner of the GUI • Using the current object’s edit form/ geometry section
The alignment tools all work in the same way • Click on Icon or select from menu • Choose the face/edge/vertex that you want to change with the LEFT MOUSE BUTTON • The selection will be highlighted - if the wrong one was selected, then just click again and Icepak will select the next face/edge/vertex • Once you have the correct selection use MIDDLE MOUSE BUTTON • Then select the face/edge/vertex with which to align/match using the LEFT MOUSE BUTTON • Upon correct selection accept with the MIDDLE MOUSE BUTTON • Instructions for the above steps are given in red in the bottom left hand corner of the display area • At any point you can cancel the operation with the RIGHT MOUSE BUTTON
Select local origin from existing ones Edit a local origin Check local Create new local origin origin
Model Building: Geometry
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Topics
• • • •
Object Shapes in Icepak Editing functions Alignment functions Units
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Shapes in Icepak: Shapes of simple objects
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Shapes in Icepak: Object geometry window …
Name, Group and Shape
Options to: Apply changes, Reset to defaults, or Edit object form
Coordinates may be entered by start/end or start/length
Uniform Cylinder - no inner radius
Uwenku.baidu.comiform Cylinder - with inner radius Inner Radius set to model annulus
Non-Uniform Cylinder - with inner radii Outer and Inner Radii on top and bottom of cylinder can be different
C-16
Editing Objects: Geometry Sub-Form
Contains all geometric information: • Shape • Local Co-ordinate system (if any) • Orientation • Location
Pull Down Menu
• Right Click on Icon 4Object size is preserved – object is moved during alignment
• Can also use edit/alignment tools instead of icons
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Object Alignment : Icons …
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Object Alignment: Icons
Align Face - 1 Dimension aligned • Plane of Face Matched Align Edge - 2 Dimensions aligned • Planes of Edge Matched Align Vertex - 3 Dimensions aligned Centre Object - Based on Centroid
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Shapes in Icepak: Options for 2D shapes
Rectangular
Inclined Can also be defined by start/angle
Change angle direction
Position defined by coordinates of two points on the diagonal
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Editing Objects: the Edit Form
The current object’s edit form can be opened in the following ways 8Double clicking the object in the tree 8Right clicking the object in the tree and selecting “Edit object” from the pull down menu 8Select the object in the tree and 8 click the “Open edit form” icon in the vertical Model Toolbar 8From the main menu, picking “Edit/ Current object/ Edit” 8Using the keyboard short-cut ctrl+lowercase e Options Common to All Sub-Forms 4 Sub-forms
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Editing Objects
Object Modification Opens up the Edit panel for the selected object
Places the selected object(s) in the trash can Opens up the Move panel for the selected object(s) • From the move panel, you can • Scale • Mirror • Rotate • Translate Opens up the Copy panel for the selected object(s) • You can group the copies, and also have same functionality as move available to you
Select options for mouse
C-8
Shapes in Icepak: Options for 3D shapes - Prisms
Regular Prism
Polygons - Uniform (high and low face identical) Same vertex options as for 2D- polygonal objects