week-11 Joint creation and Demonstration
AIM: The main aim of this week challenge is to create joints Using the *CONSTRAINED_JOINT keyword to demonstrate spherical, revolute, cylindrical, and translational joints between two rigid bodies and two deformable bodies and simulate the joint.
PROCEDURE:
1. SPHERICAL JOINT:RIGID BODY
STEP 1: First create two shperical shell element by going to element and mesh tab and click shape mesher.Under entity select sphere shell option and create two shell sphere with two different radius.
STEP 2: Now dete the top half of the elements in the outer sphere by selecting elements tool tab and clicking element editing option. Now select the top half of elements and delete it.
STEP 3:Now create material and section cards for the part.
STEP 4:Open the keyword manager and check the all button.Under the MAT keyword select the MAT 20 RIGID.
STEP 5:Open the keyword manager and check the all button.Under the SECTION keyword select the SHELL card for wall.Now give the properties of shell as desired
STEP 6: Now go to PART keyword and assign the part with the desired material and section cards.
STEP 7:In order to create a spherical joint we need to create two nodes so that 1 node is assigned to one part and the next is assigned to other part.Under element tool tab click on node edit option and create two nodes that has same co-ordinates.
STEP 8:Open the keyword manager and check the all button.Under the CONSTRAINED keyword select the EXTRA_NODE card.select the node and assign it to appropriate part number.
STEP 9:Open the keyword manager and check the all button.Under the CONSTRAINED keyword select the JOINT_SPHERICAL card and assign the node for the joint.
STEP 10:Open the keyword manager and check the all button.Under the INITIAL keyword select the VELOCITY_RIGID_BODY card and give the velocity
STEP 11:Open the keyword manager and check the all button.Under the CONTROL keyword select the TERMINATION card and give the end time.
STEP 12:Open the keyword manager and check the all button.Under the DATABASE keyword select the D3PLOT card.
STEP 13: Run the simulation
2. SPHERICAL JOINT:DEFORMABLE BODY
STEP 1: First create two shperical shell element by going to element and mesh tab and click shape mesher.Under entity select sphere shell option and create two shell sphere with two different radius.
STEP 2: Now dete the top half of the elements in the outer sphere by selecting elements tool tab and clicking element editing option. Now select the top half of elements and delete it.
STEP 3:Now create material and section cards for the part.
STEP 4:Open the keyword manager and check the all button.Under the MAT keyword select the MAT 20 RIGID.
STEP 5:Open the keyword manager and check the all button.Under the SECTION keyword select the SHELL card for wall.Now give the properties of shell as desired
STEP 6: Now go to PART keyword and assign the part with the desired material and section cards.
STEP 7:In order to create a spherical joint we need to create two nodes so that 1 node is assigned to one part and the next is assigned to other part.Under element tool tab click on node edit option and create two nodes that has same co-ordinates.
STEP 8:Now open the create entity box and select the constrain nodal rigid body for both the parts.
STEP 9:Open the keyword manager and check the all button.Under the CONSTRAINED keyword select the JOINT_SPHERICAL card and assign the node for the joint.
STEP 10:Open the keyword manager and check the all button.Under the INITIAL keyword select the VELOCITY card and give the velocity
STEP 11:Open the keyword manager and check the all button.Under the CONTROL keyword select the TERMINATION card and give the end time.
STEP 12:Open the keyword manager and check the all button.Under the DATABASE keyword select the D3PLOT card.
STEP 13: Run the simulation.
3. REVOLUTE JOINT:RIGID BODY
STEP 1: First create two shperical shell element by going to element and mesh tab and click shape mesher.Under entity select 4N shell option and create two shell square.
STEP 2:Now create material and section cards for the part.
STEP 3:Open the keyword manager and check the all button.Under the MAT keyword select the MAT 20 RIGID.
STEP 4:Open the keyword manager and check the all button.Under the SECTION keyword select the SHELL card for wall.Now give the properties of shell as desired
STEP 5: Now go to PART keyword and assign the part with the desired material and section cards.
STEP 6:In order to create a revolute joint we need to create four nodes so that 2 node is assigned to one part and the next two is assigned to other part.Under element tool tab click on node edit option.
STEP 7:Create new node sets, where nodes 1001 and 1002 belong to one node-set, and nodes 1003 and 1004 belong to another node-set.The node sets can be created through Create Entity>Set Data>*SET_NODE>Create option.
STEP 8:Open the keyword manager and check the all button.Under the CONSTRAINED keyword select the EXTRA_NODE card.select the node and assign it to appropriate part number.
STEP 9:Open the keyword manager and check the all button.Under the CONSTRAINED keyword select the JOINT_SPHERICAL card and assign the node for the joint.
STEP 10:Now a displacement along a positive Z direction is applied to one of the nodes on part 2. This is defined by *BOUNDARY_PRESCRIBED_MOTION keyword. The z-translational DOF is kept free by assigning DOF=3 in the keyword.
Single point constraint(SPC) is also used to fix part 1 at its position. Several nodes on the edge of part 1 are selected and assigned *BOUNDARY_SPC.
STEP 11:Open the keyword manager and check the all button.Under the CONTROL keyword select the TERMINATION card and give the end time.
STEP 12:Open the keyword manager and check the all button.Under the DATABASE keyword select the D3PLOT card.
STEP 13: Run the simulation
4. REVOLUTE JOINT:DEFORM BODY
STEP 1: First create two shperical shell element by going to element and mesh tab and click shape mesher.Under entity select 4N shell option and create two shell square.
STEP 2:Now create material and section cards for the part.
STEP 3:Open the keyword manager and check the all button.Under the MAT keyword select the MAT 01 elastic.
STEP 4:Open the keyword manager and check the all button.Under the SECTION keyword select the SHELL card for wall.Now give the properties of shell as desired
STEP 5: Now go to PART keyword and assign the part with the desired material and section cards.
STEP 6:In order to create a revolute joint we need to create four nodes so that 2 node is assigned to one part and the next two is assigned to other part.Under element tool tab click on node edit option.
STEP 7:Create new node sets, where nodes 1001 and 1002 belong to one node-set, and nodes 1003 and 1004 belong to another node-set.The node sets can be created through Create Entity>Set Data>*SET_NODE>Create option.
STEP 8:TEP 8:Now open the create entity box and select the constrain nodal rigid body for both the parts.
STEP 9:Open the keyword manager and check the all button.Under the CONSTRAINED keyword select the JOINT_SPHERICAL card and assign the node for the joint.
STEP 10:Now a displacement along a positive Z direction is applied to one of the nodes on part 2. This is defined by *BOUNDARY_PRESCRIBED_MOTION keyword. The z-translational DOF is kept free by assigning DOF=3 in the keyword.
Single point constraint(SPC) is also used to fix part 1 at its position. Several nodes on the edge of part 1 are selected and assigned *BOUNDARY_SPC.
STEP 11:Open the keyword manager and check the all button.Under the CONTROL keyword select the TERMINATION card and give the end time.
STEP 12:Open the keyword manager and check the all button.Under the DATABASE keyword select the D3PLOT card.
STEP 13: Run the simulation
5. CYLINDRICAL JOINT:RIGID BODY
STEP 1: First create two cylindrical shell element by going to element and mesh tab and click shape mesher.Under entity select cylindrical shell option and create two shell cylinder with two different radius.
STEP 2:Now create material and section cards for the part.
STEP 3:Open the keyword manager and check the all button.Under the MAT keyword select the MAT 20 RIGID.
STEP 4:Open the keyword manager and check the all button.Under the SECTION keyword select the SHELL card for wall.Now give the properties of shell as desired
STEP 5: Now go to PART keyword and assign the part with the desired material and section cards.
STEP 6:In order to create a spherical joint we need to create two nodes so that 1 node is assigned to one part and the next is assigned to other part.Under element tool tab click on node edit option and create two nodes that has same co-ordinates.
STEP 7: Create new node sets, where nodes 1001 and 1002 belong to one node-set, and nodes 1003 and 1004 belong to another node-set.The node sets can be created through Create Entity>Set Data>*SET_NODE>Create option.
STEP 8:Open the keyword manager and check the all button.Under the CONSTRAINED keyword select the EXTRA_NODE card.select the node and assign it to appropriate part number.
STEP 9:Open the keyword manager and check the all button.Under the CONSTRAINED keyword select the JOINT_SPHERICAL card and assign the node for the joint.
STEP 10:Open the keyword manager and check the all button.Under the INITIAL keyword select the VELOCITY_RIGID_BODY card and give the velocity
STEP 11:Open the keyword manager and check the all button.Under the CONTROL keyword select the TERMINATION card and give the end time.
STEP 12:Open the keyword manager and check the all button.Under the DATABASE keyword select the D3PLOT card.
STEP 13: Run the simulation.
6. CYLINDRICAL JOINT:DEFORM BODY
STEP 1: First create two cylindrical shell element by going to element and mesh tab and click shape mesher.Under entity select cylindrical shell option and create two shell cylinder with two different radius.
STEP 2:Now create material and section cards for the part.
STEP 3:Open the keyword manager and check the all button.Under the MAT keyword select the MAT 20 ELASTIC.
STEP 4:Open the keyword manager and check the all button.Under the SECTION keyword select the SHELL card for wall.Now give the properties of shell as desired
STEP 5: Now go to PART keyword and assign the part with the desired material and section cards.
STEP 6:In order to create a spherical joint we need to create two nodes so that 1 node is assigned to one part and the next is assigned to other part.Under element tool tab click on node edit option and create two nodes that has same co-ordinates.
STEP 7: Create new node sets, where nodes 1001 and 1002 belong to one node-set, and nodes 1003 and 1004 belong to another node-set.The node sets can be created through Create Entity>Set Data>*SET_NODE>Create option.
STEP 8:Open the create entity manager and create constrain nodal rigid bodies for those points.
STEP 9:Open the keyword manager and check the all button.Under the CONSTRAINED keyword select the JOINT_SPHERICAL card and assign the node for the joint.
STEP 10:Open the keyword manager and check the all button.Under the INITIAL keyword select the VELOCITY_RIGID_BODY card and give the velocity
STEP 11:Open the keyword manager and check the all button.Under the CONTROL keyword select the TERMINATION card and give the end time.
STEP 12:Open the keyword manager and check the all button.Under the DATABASE keyword select the D3PLOT card.
STEP 13: Run the simulation.
7. TRANSLATIONAL JOINT:RIGID BODY
STEP 1: First create two box shell element by going to element and mesh tab and click shape mesher.Under entity select box shell option and create two shell boxes with two different length.Delete the elements on the side face of the box.
STEP 2:Now create material and section cards for the part.
STEP 3:Open the keyword manager and check the all button.Under the MAT keyword select the MAT 20 RIGID.
STEP 4:Open the keyword manager and check the all button.Under the SECTION keyword select the SHELL card for wall.Now give the properties of shell as desired
STEP 5: Now go to PART keyword and assign the part with the desired material and section cards.
STEP 6:In order to create a spherical joint we need to create two nodes so that 1 node is assigned to one part and the next is assigned to other part.Under element tool tab click on node edit option and create two nodes that has same co-ordinates.
STEP 7: Create new node sets, where nodes 5001,5002 and 5003 belong to one node-set, and nodes 5004,5005 and 5006 belong to another node-set.The node sets can be created through Create Entity>Set Data>*SET_NODE>Create option.
STEP 8:Open the keyword manager and check the all button.Under the CONSTRAINED keyword select the EXTRA_NODE card.select the node and assign it to appropriate part number.
STEP 9:Open the keyword manager and check the all button.Under the CONSTRAINED keyword select the JOINT_TRANSLATIONAL card and assign the node for the joint.
STEP 10:Open the keyword manager and check the all button.Under the INITIAL keyword select the VELOCITY_RIGID_BODY card and give the velocity
STEP 11:Open the keyword manager and check the all button.Under the CONTROL keyword select the TERMINATION card and give the end time.
STEP 12:Open the keyword manager and check the all button.Under the DATABASE keyword select the D3PLOT card.
STEP 13: Run the simulation.
6. TRANSLATIONAL JOINT:DEFORM BODY
STEP 1: First create two cylindrical shell element by going to element and mesh tab and click shape mesher.Under entity select cylindrical shell option and create two shell cylinder with two different radius.
STEP 2:Now create material and section cards for the part.
STEP 3:Open the keyword manager and check the all button.Under the MAT keyword select the MAT 20 ELASTIC.
STEP 4:Open the keyword manager and check the all button.Under the SECTION keyword select the SHELL card for wall.Now give the properties of shell as desired
STEP 5: Now go to PART keyword and assign the part with the desired material and section cards.
STEP 6:In order to create a spherical joint we need to create two nodes so that 1 node is assigned to one part and the next is assigned to other part.Under element tool tab click on node edit option and create two nodes that has same co-ordinates.
STEP 7:Open the create entity manager and create constrain nodal rigid bodies for those points.
STEP 8:Open the keyword manager and check the all button.Under the CONSTRAINED keyword select the JOINT_SPHERICAL card and assign the node for the joint.
STEP 9:Open the keyword manager and check the all button.Under the INITIAL keyword select the VELOCITY_RIGID_BODY card and give the velocity
STEP 10:Open the keyword manager and check the all button.Under the CONTROL keyword select the TERMINATION card and give the end time.
STEP 11:Open the keyword manager and check the all button.Under the DATABASE keyword select the D3PLOT card.
STEP 12: Run the simulation.