Example45 The Mating of Connector

General

  • The mating of connector (2D) is analyzed.
     

  • The forces at the contact points of a plug and a jack are solved.
     

  • Unless specified in the list below, the default conditions will be applied.

 

 

Analysis Space

Item

Settings

Analysis Space

2D

Model unit

mm

 

Analysis Conditions

Item

Settings

Solvers

Mechanical Stress Analysis [Galileo]

Analysis Type

Static analysis

Large deformation

Select “Large displacement”.

The nonlinear analysis is set up on the Step/Thermal Load tab as follows.

Tab

Setting Item

Settings

Step/Thermal Load

Step/Reached Temperature Setting

Substeps of Step 1 : 80

 

Model

The forced displacement is applied on the tail of the plug.

Two contactee surfaces are set on the inner surface of the jack and a contactor surface is set on the plug.

The upper contactee surface and the contactor surface are designated as a contact pair in the “Boundary Pair” dialog. The lower contactee surface and the contactor surface are designated as another contact pair. The contact forces of contact pairs are acquired.

Body Attributes and Materials

Body Number/Type

Body Attribute Name

Material Name

5/Sheet Body

PLUG

000_Polyethylene(PE)

7/Sheet Body

JACK

008_Cu

8/WireBody *

 

 

The material properties are based on the Material DB.

8/WireBody is imprinted on the central axis of the plug. The wire body is allowed to move only in the X direction, as set in the boundary condition.

Boundary Condition

Boundary Condition Name/Topology

Tab

Boundary Condition Type

Settings

Fix/Edge

Mechanical

Displacement

Select the XZ component.

UX=0, UZ=0

Move/Edge

Mechanical

Displacement

Select the XZ component.

UX=-12.5×10^-3[m]

UZ=0

Contactor/Edge

Mechanical

Contact surface

Contact Surface Classification: Contactor surface

Target1/Edge

Mechanical

Contact surface

Contact Surface Classification: Contactee surface

Target2/Edge

Mechanical

Contact surface

Contact Surface Classification: Contactee surface

 

The following contact pairs are set in “Boundary Pair” dialog.

Boundary Pair

Coefficient of Friction

Contactor – Target1

0.0

Contactor – Target2

0.0

Results

The diagram below shows the deformation of the jack and plug in a substep when 50% of the defined load (50% of the -12.5×10-3[m] displacement) is applied. The vectors in the diagram show maximum principal stresses.

The inner and outer area of the jack exhibit tensile stress and compressive stress respectively.

 

The deformation and the distribution of the maximum principal stresses in another step when 95% of the defined load is applied is shown below.

 

 

Z component of the contact force is shown in the following graph.

Horizontal axis is step. Displacement of Move is incremental over the steps.

Z components of the contact forces are generated in the opposite direction. The contact forces will come to zero as the plug fits into the cavity area of the jack.