ED4094 Vehicle Dynamics Syllabus:
ED4094 Vehicle Dynamics Syllabus – Anna University PG Syllabus Regulation 2021
COURSE OBJECTIVES:
The main learning objective of this course is to prepare students for:
1. Apply and develop mathematical model of a system
2. Applying vehicular vibrations and response of vehicle
3. Applying attire model based on required performance.
4. Applying the various vehicle performance, control methodologies to ensure stability and ride comfort
5. Applying the principles vertical, longitudinal and lateral dynamics vehicle design
UNIT-I BASIS OF VIBRATION
Definitions, Modeling and Simulation, Global and Vehicle Coordinate System, Free, Forced, Undamped and Damped Vibration, Response Analysis of Single DOF, Two DOF, Multi DOF, Magnification factor, Transmissibility, Vibration absorber, Vibration measuring instruments, To rsional vibration, Critical speed
UNIT-II TYRES
Tyreforcesandmoments,Tyrestructure,LongitudinalandLateralforceatvariousslipangles,rolling resistance, Tractive and cornering property of tyre. Performance of tyre on wetsurface. Ride property of tyres. Magic formulae tyre model, Estimation of tyre road friction. Teston Various road surfaces. Tyre vibration
UNIT-III VERTICAL DYNAMICS
Human response to vibration, Sources of Vibration. Design, analysis and computer simulation of Passive, Semi-active and Active suspension using Quarter car, half car and full car model. Influence of suspension stiffness, suspension damping, and tyre stiffness. Control law for LQR, H Infinite, Skyhook damping. Air suspension system and their properties
UNIT-IV LONGITUDINAL DYNAMICS AND CONTROL
Aerodynamic forces and moments. Equation of motion. Tyre forces, rolling resistance, Load distribution for three wheeler and four wheeler. Calculation of Maximum acceleration, Reaction forces for Different drives. Braking and Driving torque. Prediction of Vehicle performance. ABS, stability control, Traction control. Case Studies
UNIT-V LATERAL DYNAMICS
Steady state handling characteristics. Steady state response to steering input. Testing of handling characteristics. Transient response characteristics, Direction control of vehicles. Roll center, Rollaxis, Vehicle under side forces. Stability of vehicle on banked road and during turn. Effect of suspension on cornering
COURSE OUTCOMES:
On Completion of the course the student will be able to
CO1 Understand the basics of finding vibration in vehicle components and measuring equipment’s
CO2 Develop the knowledge of various tyres model and their parameters.
CO3 Design analysis and computer simulation of vertical dynamics in vehicles.
CO4 Understanding the aerodynamic concepts in longitudinal dynamics and control in vehicle dynamics.
CO5 Understand the concepts in lateral dynamics of vehicles.