Week 9-Creation of 1D Connectors Challenge

Aim :- Mesh the given geometry. Provided below are the quality parameters that you have to follow.

Target Element size - 5 Units

S.N	Quality Criteria	Value
1	Aspect Ratio	5
2	Skewness	45
3	Warping	15
4	Taper	0.5
5	Min. Length	2 Units
6	Max. Length	8 Units
7	Min angle Quad	45
8	Max angle Quad	135
9	Min angle Tria	30
10	Max angle Tria	110
10	Tria %	15

Create connector and Attach the various parts of the given model

1. Right_Rail_2 & Front_truss_1:- Seam-Quad(angled+capped+L)

2. Left_Rail_2 & Front_truss_1:- Quad elements

3. Front_truss_2, Front_truss_1 & Right_Rail_1:- Spot weld with 2 Layers and 5 mm Diameter

4. Front_truss_2, Front_truss_1 & Left_Rail_1:- Hexa (Adhesive)

5. Rear_truss_2 & Right_Rail_2:- Bolt Connector

6. Rear_truss_2 & Left_Rail_2:- Bolt Connector

7. Right_Rail_1 & Right_Rail_2:- Spot-weld with Rigid Elements

8. Left_Rail_1 & Left_Rail_2:- Spot-weld with Spring Elements

9. Rest all the component left Join them with suitable connectors

Procedure :-

Step 1 :- import the model

file-open-model-select the model-open

Step 2 :- Applying the quality criteria.

Preferences - criteria file settings - give the quality parameters- apply -ok.

Step 3 :- Generate mesh to the given model.

2D -auotmesh-surface-displayed-element size 5 - element type - mixed - mesh.

Step 3 :- Checking the quality criteria and improving the mesh flow.

Step 4 :- Assigning the property amd material.

Assigning material and property to all the components.

Property assigned.

Material assigned.

Step 5 :- Creating connectors.

1. Right_Rail_2 & Front_truss_1:- Seam-Quad(angled+capped+L)

2D - Connectors - seam - location -node by path - select the nodes - spacing=5 - turn on retained node -tolerance = 5 - select the components - type= Seam-Quad(angled+capped+L) - no property - create.

2. Left_Rail_2 & Front_truss_1:- Quad elements

2D - Connectors - seam - location -node by path - select the nodes - spacing=5 -tolerance = 5 - select the components -type - quads -create.

3. Front_truss_2, Front_truss_1 & Right_Rail_1:- Spot weld with 2 Layers and 5 mm Diameter

2D - Connectors - spot - location - node by path - spacing =5 - retained node -select 1st and 2nd component - tolerance 5 -type -weld - diameter = 5 - create.

2D - Connectors - spot - location - node by path - spacing =5- retained node -select 2nd and 3rd component - tolerance 5 -type -weld - diameter = 5 - create.

4. Front_truss_2, Front_truss_1 & Left_Rail_1:- Hexa (Adhesive)

2D - Connectors - seam - location -node by path - select the nodes - spacing=5 -tolerance = 5 - select the components 1st and 2nd -type -hexa(adhesive)- stroips=2 -coats = 2 - width = 5 - create.

2D - Connectors - seam - location -node by path - select the nodes - spacing=5 -tolerance = 5 - select the components 2nd and 3rd -type -hexa(adhesive)- stroips=2 -coats = 2 - width = 5 - create.

5. Rear_truss_2 & Right_Rail_2:- Bolt Connector

2D -connectors -bolt - location =node -selelct 1 node - selct two components - tolerance = 5 - type =bolt general - no property - create hole if none -adjust hole postion - create .

6. Rear_truss_2 & Left_Rail_2:- Bolt Connector.

2D -connectors -bolt - location =node -selelct 1 node - selct two components - tolerance = 5 - type =bolt general - no property - create hole if none -adjust hole postion - create .

7. Right_Rail_1 & Right_Rail_2:- Spot-weld with Rigid Elements.

2D - Connectors - spot - location - node by path - spaceing =5 - retained node -select 1st and 2nd component - tolerance 5 -type - - rigid -create.

8. Left_Rail_1 & Left_Rail_2:- Spot-weld with Spring Elements.

2D - Connectors - spot - location - node by path - spaceing =5 - retained node -select 1st and 2nd component - tolerance 5 -type - - spring -create.

9.Left_Rail_1 & rear trusss_2 :-spot - plot connectors.

2D - Connectors - spot - location - node by path - spaceing =5 - retained node -select 1st and 2nd component - tolerance 5 -type - plot -create.

10 . front truss 2 & right rail 2 :- Rod elements.

2D - Connectors - seam - location -node by path - select the nodes - spacing=5 -tolerance = 5 - select the components - type rod - - create.

Final model :-

Result :-Meshed the given geometry. Provided the given quality parameters and Create connector and Attach the various parts of the given model .

Learned outcomes :-

*study about the different connectors.

*study about what are the errorsmand how to realise it.

*Got a knwledgeof the connectors toolls amd improve the mesh quality.

thanks

Renith Balachandran M