Full-Vehicle Analysis: Dynamic Loadcase

Full Vehicle Assembly

Select the Full-Vehicle Assembly you want to analyze. The menu lists all full-vehicle assemblies currently open in your session.

Assembly Variant

Select the assembly variant you want to analyze. The menu lists all full-vehicle assembly variants of the chosen assembly.

Switches to the selected variant and adds the required testrig as needed.

Output Prefix

Enter a string that specifies the Analysis Output Name. The string can contain only alphanumeric characters and underscores (_). Adams Car appends the suffix _dyf to form the complete analysis name. For example, if you enter test_45 as the output prefix, the analysis name becomes test_45_dyf.

Solver Settings File

Select one or more files (extension .ssf) defining the solver settings to be temporarily applied for this simulation (optional).

Opens the Solver Settings File (extension .ssf) editor dialog box.

End Time

Specify the amount of time over which you want the simulation to run.

Number of Steps / Step Size / Step Frequency

Select either of the following:

Analysis Mode

Select interactive, graphical, background, files, or event only.

See Mode of Simulation: Interactive, Mode of Simulation: Graphical,
Mode of Simulation: Background, Mode of Simulation: Files_only, Mode of Simulation: Event_only.

Fore Axle Tab

Used to define inputs for fore/front axle.

Aft Axle Tab

Used to define inputs for aft/rear axle.

Excitation Mode

Select displacement, velocity, acceleration or force.

RPC3 File Name

Enter RPC3 file for left and right input.

Select to display channel information available in the specified RPC file.

Vertical Input

If Toggle button not selected then enter the runtime function expression that will define the left/right vertical jack actuator motion or force.

Typically, the function expression will be a function of time, for example an impulse, a simple harmonic function or a frequency sweep.

If Toggle button selected then select channel number that maps the RPC3 file channels to the desired input quantity.

Zero Offset

Select to offset the RPC3 data by subtracting the channels first date value from the array.

Cornering Force

If Toggle button not selected then enter a runtime function for the left and the right cornering force, applied at the wheel center.

If Toggle button selected then select channel number that maps the RPC3 file channels to the desired input quantity.

Braking Force

If Toggle button not selected then enter a runtime function for the braking force, applied at the wheel center.

If Toggle button selected then select channel number that maps the RPC3 file channels to the desired input quantity.

Aligning Torque

If Toggle button not selected then enter a runtime function for the left and the right aligning torques, applied at the wheel center.

If Toggle button selected then select channel number that maps the RPC3 file channels to the desired input quantity.

Overturning Torque

If Toggle button not selected then enter a runtime function for the overturning torque.

If Toggle button selected then select channel number that maps the RPC3 file channels to the desired input quantity.

Rolling Res. Torque

If Toggle button not selected then enter a runtime function for the rolling resistance torque.

If Toggle button selected then select channel number that maps the RPC3 file channels to the desired input quantity.

Controller Gains

If Toggle button not selected then the movements of the body of the vehicle will be limited by activating the JPRIM's body_stake and the yaw_stake.

If Toggle button selected then user need to enter inputs such as stiffness, damping, feedback force which are used as inputs to the feed-forward controller system.

Stiffness

Specifies the stiffness values for all four wheels. These values are used as inputs to the feed-forward controller system.

Damping

Specifies the damping values for all four wheels. These values are used as inputs to the feed-forward controller system.

Feedback Motion X

If Toggle button not selected then enter a runtime function for the feedback motion (displacement input) in longitudinal direction

If Toggle button selected then select channel number that maps the RPC3 file channels to the desired input quantity.

Feedback Motion Y

If Toggle button not selected then enter a runtime function for the feedback motion (displacement input) in lateral direction

If Toggle button selected then select channel number that maps the RPC3 file channels to the desired input quantity.

Feedback Motion Z

If Toggle button not selected then enter a runtime function for the feedback motion (displacement input) in vertical direction

If Toggle button selected then select channel number that maps the RPC3 file channels to the desired input quantity.

WFT Parameters File

Enter WFT Parameters file which contain WFT mass, Offset, Static Load, scaling factors and so on.

Steering Excitation Mode

Select displacement, velocity or acceleration.

Steering RPC3 File

Enter RPC3 file for Steering input.

Steering Input

If Toggle button not selected then enter the runtime function expression that will define the steering motion.

Typically, the function expression will be a function of time, for example an impulse, a simple harmonic function or a frequency sweep.

If Toggle button selected then enter an integer value that maps the RPC3 file channels to the desired input quantity.

Select to use the Function Builder to define the runtime function expression for the steering input. See Function Builder for more information.

Create Event Log File

Select if you want Adams Car to write information about the assembled model and analysis to an Analysis Log File.

Compute Characteristic Values

Activates requests computing suspension and steering characteristics during the full vehicle event.

The additional requests are equivalent to those previously already available for suspension analysis.

See Output of Suspension Analyses in Adams Car - Running Analysis for more details.

Select to display a dialog box where you can add multi-line comments to any entity, to describe its purpose and function. Adams Car displays different comments dialog boxes, depending on the entity type for which you want to record comments:

Learn about Recording Comments.

Select to display an Alignment dialog box where you can set toe, camber and caster alignment values.

Select to display Request Selection dialog box where you can set request activity by selecting different options.