Agent Skills
› Cai-aa/CAE-Agent-Hub
› abaqus-geometry
abaqus-geometry
GitHub用于在Abaqus中创建和操控几何体，包括生成基本形状、通过草图拉伸/旋转建模以及导入STEP/IGES文件。适用于有限元分析前的几何建模任务。
Trigger Scenarios
创建盒子、梁、板或支架
绘制几何图形如圆柱或管道
导入STEP或IGES格式CAD文件
执行拉伸或旋转操作构建部件
组装零件或定位组件
Install
npx skills add Cai-aa/CAE-Agent-Hub --skill abaqus-geometry -g -y
SKILL.md
Frontmatter
{
"name": "abaqus-geometry",
"description": "Create and manipulate Abaqus geometry - parts, sketches, extrusions, CAD import. Use for any geometry creation task including box, cylinder, or STEP\/IGES import.",
"allowed-tools": [
"Read",
"Write",
"Edit",
"Glob",
"Grep",
"Bash(abaqus:*)"
]
}
Abaqus Geometry Skill
Create parts, assemblies, and import CAD files for finite element analysis.
When to Use This Skill
Route here when user mentions:
- "create a box/beam/plate/bracket"
- "draw geometry", "make a cylinder/tube"
- "import STEP/IGES file"
- "extrude", "revolve", "create assembly"
- "position the parts", "build a component"
Route elsewhere:
- Meshing the geometry ->
/abaqus-mesh - Defining materials/sections ->
/abaqus-material - Applying loads or BCs ->
/abaqus-load,/abaqus-bc - Full analysis workflow ->
/abaqus-static-analysis
Key Decisions
1. How to Create Geometry?
| Shape | Approach |
|---|---|
| Box, plate, beam | Sketch rectangle + extrude |
| Cylinder, tube | Sketch circle + extrude |
| Pipe, disc, shaft | Sketch profile + revolve |
| Complex/existing | Import STEP/IGES |
| Quick prototype | Primitives |
Decision guidance:
- Simple prismatic shape? -> Sketch + extrude
- Axisymmetric part? -> Sketch + revolve
- Existing CAD model? -> Import STEP file
2. Where to Place Origin?
| Origin Location | When to Use |
|---|---|
| Corner (0,0,0) | Asymmetric parts, easier coordinate math |
| Center (0,0,0) | Symmetric parts, rotation about center |
3. Part vs Instance Coordinates
| Context | Use |
|---|---|
| Geometry creation, section assignment | Part coordinates |
| BCs, loads, sets, finding faces | Instance/assembly coordinates |
Important: After creating an instance, use instance.faces.findAt() not part.faces.findAt().
What to Ask User
If unclear, ask:
- Shape type? Box, cylinder, imported CAD?
- Dimensions? Length, width, height in mm
- Origin location? Corner or center?
- Import file available? Path to STEP/IGES?
- Features needed? Holes, fillets, chamfers?
Workflow
Step 1: Create Model and Part
Create the model container, then a 3D deformable part.
Step 2: Define Geometry
Choose approach based on shape:
- Sketch + Extrude: Draw 2D profile, extrude to 3D
- Sketch + Revolve: Draw profile, revolve around axis (360 degrees for full solid)
- CAD Import: Open STEP/IGES, create part from geometry file
Step 3: Add Features (Optional)
Add secondary features if needed:
- Cut holes using cut extrude
- Round edges with fillet
- Partition cells for BC/load regions
Step 4: Create Assembly Instance
Create root assembly with Cartesian datum, then create instance from part.
Step 5: Create Sets and Surfaces
Create named sets/surfaces on instance (not part) for:
- BC regions
- Load application surfaces
- Design regions (for optimization)
Finding Entities
Two methods to locate faces/edges:
- findAt() - Exact coordinates (point must be ON the entity)
- getByBoundingBox() - Tolerant box search (better for automation)
Combine multiple entities with + operator.
Common Pitfalls
| Problem | Cause | Solution |
|---|---|---|
| "Sketch is not closed" | Gap in sketch entities | Ensure lines connect to form closed loop |
| "Cannot find face at coordinates" | Point not exactly on face | Use bounding box or verify coordinates |
| "Part has no cells" | Sketch not extruded | Call BaseSolidExtrude or similar |
| "Instance already exists" | Duplicate name | Use unique name or delete existing |
Validation Checklist
Before proceeding to mesh/analysis:
- Part created with correct dimensions
- Geometry is watertight (no gaps)
- Instance created in assembly
- Sets created on instance for BC/load regions
- Partitions added if needed for region selection
Units
All dimensions use consistent units (mm-tonne-s-N-MPa):
- Length: mm
- Coordinates: mm
Code Patterns
For API syntax and code examples, see:
Version History
- 2178ed3 Current 2026-07-24 17:39
