中仿科技 --- 专业信息化软件及技术咨询公司 CnTech Co.,Ltd--- Leading Engineering...

中仿科技 --- 专业信息化软件及技术咨询公司 www.CnTech.com.cn CnTech Co.,Ltd--- Leading Engineering Virtual Prototyping Solutions Provider [email protected]

COMSOL Multiphysics DemoHigh Power Connector

Contact Area Governs Local Current Density


Step 1: Setup Structural Contact Analysis


Step 2: Import Geometry from CAD

Import Twice (2 Connectors)

Position to Overlap

Contact Solver Deflects to correct position


Step 3: Define Contact Pairs

Assembly Modeling

Define Contact pairs (there are two)


Step 4: Materials & Boundary Conditions

Copper

Built-in Ends

Symmetry


Step 5: Mesh & Solve For Deflection

Tetrahedral –or– Hexahedral

Automatic –or– Interactive

Augmented Lagrange Contact

Solver


Step 6: Add Electric & Thermal

Bi-Directionally Linked“Sees” Contact Area from Structural Solution


Step 7: Materials & Boundary Conditions - Heat

Again Copper

Link Heat to DC

Symmetry

Convective Loss


Step 8 : Materials & Boundary Conditions - Electric

Again Copper

Conductivity f (T)

Insulative – Most Surfaces

Current-in : One End

Ground Other End


Step 9: Structural is Also Temperature Dependent

Thermal Expansion

Affects Contact Area


Step 10: Solve Fully Coupled Problem

Contact Area, Electric Current & Temperature Completely Interdependent

中仿科技 --- 专业信息化软件及技术咨询公司 CnTech Co.,Ltd--- Leading Engineering...

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