Creating Propshaft Parts
You can now define hardpoints and construction frames for all other points in the driveline. You then create the propshaft parts.
After you create the front propshaft parts, you connect them with spring components to take into account their torsional elasticity. Those components allow you to specify a stiffness and damping coefficient.
Lastly, you connect the rear propshaft parts with a viscous-coupling component. This component works whenever there is a difference in angular velocity between the input and the output shaft. In this case, it transfers torque to the rear axle according to a characteristic stored in a property file.
To create hardpoints:
1. Create the first hardpoint:
■Hardpoint Name: propshaft_to_diffcase_front
■Type: single
■Location: 120, 0, 0
2. Select Apply.
3. Create the second hardpoint using the same specifications used for the first hardpoint, except for:
■Hardpoint Name: propshaft_intermediate
■Location: 1200, 0, -50
4. Select Apply.
5. Create the third hardpoint using the same specifications used for the second hardpoint, except for:
■Hardpoint Name: propshaft_to_diffcase_rear
■Location: 2400, 0, -200
6. Select OK.
To create construction frames:
1. Create the first construction frame:
■Construction Frame: mid_front_propshaft
■Type: single
■Location Dependency: Centered between coordinates
■Centered between: Two Coordinates
■Coordinate Reference #1: hps_propshaft_to_diffcase_front
■Coordinate Reference #2: hps_propshaft_intermediate
■Orientation Dependency: Orient axis along line
■Coordinate Reference #1: hps_propshaft_to_diffcase_front
■Coordinate Reference #2: hps_propshaft_intermediate
2. Select Apply.
3. Create the second construction frame using the same specifications used for the first construction frame, except for:
■Construction Frame: mid_rear_propshaft
■Coordinate Reference #1: hps_propshaft_to_diffcase_rear (enter the same reference for both location and orientation)
4. Select OK.
To create propshaft parts:
1. From the Build menu, point to Parts, point General Part, and then select Wizard.
2. Create the first propshaft:
■General Part Name: front_propshaft_1
■Type: single
■Geometry Type: Link
■Coordinate Reference # 1: cfs_mid_front_propshaft
■Coordinate Reference # 2: hps_propshaft_to_diffcase_front
■Radius: 20
■Color: blue
3. Select Apply.
4. Create the second propshaft using the same specifications used for the first propshaft, except for:
■General Part Name: front_propshaft_2
■Coordinate Reference # 2: hps_propshaft_intermediate
■Color: red
5. Select Apply.
6. Create the third propshaft using the same specifications used for the second propshaft, except for:
■General Part Name: rear_propshaft_1
■Coordinate Reference # 1: cfs_mid_rear_propshaft
■Color: blue
7. Select Apply.
8. Create the fourth propshaft using the same specifications used for the third propshaft, except for:
■General Part Name: rear_propshaft_2
■Coordinate Reference # 2: hps_propshaft_to_diffcase_rear
■Color: red
9. Select OK.
To define propshaft elasticity:
10. From the Driveline Components menu, point to Torsion Spring, and then select New.
11. Define the elasticity:
■Torsion Spring Name: front_propshaft_elasticity
■I Part: ges_front_propshaft_1
■J Part: ges_front_propshaft_2
■Construction Frame: cfs_mid_front_propshaft
■Spring Type: Linear
■Damping: 1e3
■Preload: 0.0
■Stiffness: 1e7
12. Select OK.
To create viscous coupling:
1. From the Driveline Components menu, point to Viscous Coupling, and then select New.
2. Define the viscous coupling:
■Viscous Coupling Name: rear_viscous_coupling
■I Part: ges_rear_propshaft_1
■J Part: ges_rear_propshaft_2
■Construction Frame: cfs_mid_rear_propshaft
■Property File: mdids://adriveline_shared/differentials.tbl/viscous_coupling.dif
3. Select OK.