Overview of Vehicle Dynamics Modeling

Full Vehicle Dynamic Simulation — Lesson 1

Modeling Subsystems with Dynamic Simulation — Lesson 2

Components: Modeling Bushings with Dynamic Simulations — Lesson 3

Components: Shock, Spring, Jounce Bumper, Rigid Body, Top Mount — Lesson 4

Modeling Tires with Dynamic Simulation — Lesson 5

Flexible Body and Control System — Lesson 6

Course Summary — Lesson 7

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Course Assessment — Overview of Vehicle Dynamics Modeling

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Course Assessment — Overview of Vehicle Dynamics Modeling

Overview of Vehicle Dynamics Modeling Practice Quiz Course Assessment — Overview of Vehicle Dynamics Modeling

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Question 1 of 8

1. Question
Which of the following statements is not true?
- Vehicle dynamics simulation engineers spend about 40-50% of their effects to collect vehicle data.
- A full vehicle dynamics model is an assembly of several subsystems.
- Brake subsystem does not have to be comprehended in Slalom simulation model.
- Engine pistons and cam structures should be modeled in vehicle dynamics model.
Question 2 of 8

2. Question
Which spot is the best to measure vehicle trim heights not sensitive to tire radius variation?
- Front wheel housing opening from the ground.
- A bottom point of front cradle to the bottom point of LCA ball joint.
- Front body rocker from the ground.
- Vehicle CG height from the ground.
Question 3 of 8

3. Question
Which of the following mass numbers is the heaviest?
- Front GAWR.
- Front As shipped.
- Front Curb.
- Front GVW.
Question 4 of 8

4. Question
Which of the following suspension jounce travels are good for passenger vehicles?
- 10 mm
- 50 mm
- 100 mm
- 500 mm
Question 5 of 8

5. Question
Which of the following statements is not true for vehicle body flexibility modeling?
- It is common to see mass discrepancy over 100 kg between vehicle body FE models and physical vehicle bodies.
- Trimmed body is preferred to Body-In-White.
- A 0.2g cornering simulation does not require flexi-body vehicle body.
- The mass discrepancy between the FE model and physical vehicle body is added to the vehicle center of gravity.
Question 6 of 8

6. Question
Which of the following bushing statements is not true?
- Force vs deflection curves should be obtained from at least three samples.
- Raw data from bushing characterization is the best to incorporate in the model.
- Bushing radial rates in cross-car direction and vertical direction may be different for vibration isolation purpose.
- For 5 deg loss angle, the damping coefficient is 0.1% of the bushing stiffness.
Question 7 of 8

7. Question
Which of the following statements does not describe the ride spring correctly?
- The stiffness is nearly constant with the suspension travel.
- Spring check loads determine vehicle trim heights.
- More passengers and luggage increase the vehicle ride frequency.
- Dual rate spring compensates for frequency change with ballast.
Question 8 of 8

8. Question
Which of the following statements is not true?
- Jounce bumpers in passenger vehicles are made of Polyurethane.
- A single path top mount is stiffer than a dual path top mount.
- Fiala tire is good to use a braking-in-a-turn simulation.
- A single point contact tire model does not have tire enveloping capability.