Creating the Differential Housing
Creating the Differential Housing and Connections
You now create a mount part for the chassis part. During the assembly process, the chassis part replaces the mount part. If there is no chassis part, Adams Driveline replaces the mount part with the part GROUND.
Then, you create a general part for the front- and rear-differential housing. You connect the part to the differential case with a revolute joint and to the body with rubber mounts.
Next, you create a connection, using a revolute joint, between the pinions and the differential housing.
Lastly, you create connections between:
■Front ring gear and pinion
■Pinion and rear ring gear
To create a mount part:
1. From the Build menu, point to Parts, point to Mount, and then select New.
2. In the Mount Name text box, enter body.
3. In the Coordinate Reference text box, enter hps_front_diff_ref.
4. Set From Minor Role to any.
5. Select OK.
To create a general part:
1. From the Build menu, point to Parts, point to General Part, and then select New.
2. Create the front housing:
■General Part: front_diff_housing
■Type: single
■Location Dependency: Delta location from coordinate
■Coordinate Reference: cfs_front_diff_ref
■Location: 0, 0, 0
■Orientation Dependency: Delta orientation from coordinate
■Construction Frame: cfs_front_diff_ref
■Orientation: 0, 0, 0
■Mass: 1
■Ixx: 1
■Iyy: 1
■Izz: 1
3. Select Apply.
4. Create the rear housing using the same specifications used for the front housing, except for:
■General Part: rear_diff_housing
■Coordinate Reference: hps_rear_diff_ref
■Construction Frame: cfs_rear_diff_ref
5. Select OK.
To create the case-housing connections:
1. From the Build menu, point to Attachments, point to Joint, and then select New.
2. Create the front joint:
■Joint Name: front_diff_to_housing
■I Part: ges_diff_case_front
■J Part: ges_front_diff_housing
■Type: single
■Joint Type: revolute
■Active: always
■Location Dependency: Delta location from coordinate
■Coordinate Reference: cfs_front_diff_ref
■Location: 0, 0, 0
■Orientation Dependency: Delta orientation from coordinate
■Construction Frame: cfs_front_diff_ref
■Orientation: 0, 0, 0
3. Select Apply.
4. Create the rear joint using the same specifications used for the front joint, except for:
■Joint Name: rear_diff_to_housing
■I Part: ges_diff_case_rear
■J Part: ges_rear_diff_housing
■Coordinate Reference: cfs_rear_diff_ref
■Construction Frame: cfs_rear_diff_ref
5. Select Apply.
To create the pinion-housing connections:
1. Create the front joint:
■Joint Name: front_pinion_to_housing
■I Part: ges_front_propshaft_1
■J Part: ges_front_diff_housing
■Type: single
■Joint Type: revolute
■Active: always
■Location Dependency: Delta location from coordinate
■Coordinate Reference: cfs_propshaft_to_diffcase_front
■Location: 0, 0, 0
■Orientation Dependency: Delta orientation from coordinate
■Construction Frame: cfs_propshaft_to_diffcase_front
■Orientation: 0, 0, 0
2. Select Apply.
3. Create the rear joint using the same specifications used for the front joint, except for:
■Joint Name: rear_pinion_to_housing
■I part: ges_rear_propshaft_2
■J Part: ges_rear_diff_housing
■Coordinate Reference: cfs_propshaft_to_diffcase_rear
■Construction Frame: cfs_propshaft_to_diffcase_rear
4. Select OK.
To create the gear-pinion connections:
1. From the Driveline Components menu, point to Kinematic Gear, and then select New.
2. Create the front reduction gear:
■Reduction Gear Name: front_ringgear_pinion
■Input Joint Type: Kinematic Joint
■Input Joint: josrev_front_pinion_to_housing
■Output Joint Type: Kinematic Joint
■Output Joint: josrev_front_diff_to_housing
■Method: explicit
■Ratio: 4
■Active: always
3. Select Apply.
4. Create the rear reduction gear using the same specifications used for the front reduction gear, except for:
■Reduction Gear Name: rear_ringgear_pinion
■Input Joint: josrev_rear_pinion_to_housing
■Output Joint: josrev_rear_diff_to_housing
5. Select OK.
6. Save your work.
Creating Differential Housing Geometry and Mounts
In this section, you create the geometry and mounts for the front- and rear-differential housing.
For the front differential housing, you first create a hardpoint for each differential mount, and then use these hardpoints to build links, that define geometry and bushings between the differential housing and the mount part for chassis. The bushing elements simulate rubber mounts between the differential housing and the chassis part.
To create hardpoints to locate the front-differential housing:
1. Create the first hardpoint:
■Hardpoint Name: front_diff_housing_mount_1
■Type: single
■Location: 150.0, -100.0, 0.0
2. Select Apply.
3. Create the second hardpoint using the same specifications used for the first hardpoint, except for:
■Hardpoint Name: front_diff_housing_mount_2
■Location: 150.0, 100.0, 0.0
4. Select Apply.
5. Create the third hardpoint using the same specifications used for the first hardpoint, except for:
■Hardpoint Name: front_diff_housing_mount_3
■Location: -200.0, 0.0, 0.0
6. Select OK.
To create links:
1. From the Build menu, point to Geometry, point to Link, and then select New.
2. Create the first link:
■Link Name: link_1
■General Part: ges_front_diff_housing
■Coordinate Reference # 1: hps_front_diff_housing_mount_1
■Coordinate Reference # 2: hps_front_diff_housing_mount_2
■Radius: 15
■Color: yellow
3. Select Apply.
4. Create the second link using the same specifications used for the first link, except for:
■Link Name: link_2
■Coordinate Reference # 2: hps_front_diff_housing_mount_3
5. Select Apply.
6. Create the third link using the same specifications used for the second link, except for:
■Link Name: link_3
■Coordinate Reference # 1: hps_front_diff_housing_mount_3
■Coordinate Reference # 2: hps_front_diff_housing_mount_2
7. Select OK.
To create bushings:
1. From the Build menu, point to Attachments, point to Bushing, and then select New.
2. Create the first bushing:
■Bushing Name: front_diff_housing_1
■I Part: ges_front_diff_housing
■J Part: mts_Body
■Type: single
■Inactive: never
■Preload: 0, 0, 0
■TPreload: 0, 0, 0
■Offset: 0, 0, 0
■Roffset: 0, 0, 0
■Geometry Length: 20
■Geometry Radius: 30
■Location Dependency: Delta location from coordinate
■Coordinate Reference: hps_front_diff_housing_mount_1
■Location: 0, 0, 0
■Orientation Dependency: User entered value
■Euler Angles: 0, 0, 0
3. Select Apply.
4. Create the second bushing using the same specifications used for the first bushing, except for:
■Bushing Name: front_diff_housing_2
■Coordinate Reference: hps_front_diff_housing_mount_2
5. Select Apply.
6. Create the third bushing using the same specifications used for the second bushing, except for:
■Bushing Name: front_diff_housing_3
■Coordinate Reference: hps_front_diff_housing_mount_3
7. Select OK.
Now you do the same for the rear differential housing, creating the hardpoints, the geometry and the mounts.
To create hardpoints to locate the rear-differential housing:
1. Create the first hardpoint:
■Hardpoint Name: rear_diff_housing_mount_1
■Type: single
■Location: 2650.0, -100.0, -200.0
2. Select Apply.
3. Create the second hardpoint using the same specifications used for the first hardpoint, except for:
■Hardpoint Name: rear_diff_housing_mount_2
■Location: 2650.0, 100.0, -200.0
4. Select Apply.
5. Create the third hardpoint using the same specifications used for the first hardpoint, except for:
■Hardpoint Name: rear_diff_housing_mount_3
■Location: 2300.0, 0.0, -200.0
6. Select OK.
To create links:
1. Create the first link:
■Link Name: link_1
■General Part: ges_rear_diff_housing
■Coordinate Reference # 1: hps_rear_diff_housing_mount_1
■Coordinate Reference # 2: hps_rear_diff_housing_mount_2
■Radius: 15
■Color: yellow
2. Select Apply.
3. Create the second link using the same specifications used for the first link, except for:
■Link Name: link_2
■Coordinate Reference # 2: hps_rear_diff_housing_mount_3
4. Select Apply.
5. Create the third link using the same specifications used for the second link, except for:
■Link Name: link_3
■Coordinate Reference # 1: hps_rear_diff_housing_mount_3
■Coordinate Reference # 2: hps_rear_diff_housing_mount_2
6. Select OK.
To create bushings:
1. Create the first bushing:
■Bushing Name: rear_diff_housing_1
■I Part: ges_rear_diff_housing
■J Part: mts_Body
■Type: single
■Inactive: never
■Preload: 0, 0, 0
■TPreload: 0, 0, 0
■Offset: 0, 0, 0
■Roffset: 0, 0, 0
■Geometry Length: 20
■Geometry Radius: 30
■Location Dependency: Delta location from coordinate
■Coordinate Reference: hps_rear_diff_housing_mount_1
■Location: 0, 0, 0
■Orientation Dependency: User entered value
■Euler Angles: 0, 0, 0
2. Select Apply.
3. Create the second bushing using the same specifications used for the first bushing, except for:
■Bushing Name: rear_diff_housing_2
■Coordinate Reference: hps_rear_diff_housing_mount_2
4. Select Apply.
5. Create the third bushing using the same specifications used for the second bushing, except for:
■Bushing Name: rear_diff_housing_3
■Coordinate Reference: hps_rear_diff_housing_mount_3
6. Select OK.
7. Save your work.