The Fundamentals of Vehicle Dynamics

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Vehicle design always involves conflicting goals. A suspension system that’s optimized for ride is not always the best for handling. The powertrain that gives best acceleration is not likely to be the most fuel-efficient.

This course addresses the motor vehicle as a system. By increasing your knowledge of the primary mechanics for all modes of performance, you’ll better appreciate how to optimize the overall vehicle. This will allow you to predict performance of a given design early in the design process, identify the conflicts in designing for optimal performance in different modes, and set directions for design changes that will improve performance of a given mode.

This on-demand course featuring vehicle dynamics expert and best-selling author, Thomas D. Gillespie, provides a broad overview of vehicle performance, including engineering analyses and formulas that will allow you to calculate useful performance metrics. The goal of this course is to provide you with the tools to predict the performance of a car or truck in accelerating/braking, ride, and handling/rollover. In the process, you’ll come to understand the basic mechanisms and engineering principles that govern steering and suspension system design, as well as develop familiarity with the terminology.

This course has been approved by the Accreditation Commission for Traffic Accident Reconstruction (ACTAR) for 16 Continuing Education Units (CEUs). Upon completion of this seminar, accredited reconstructionists should mail a copy of their course certificate and the $5 student CEU fee to ACTAR, PO Box 1493, North Platte, NE 69103.

Objectives

By participating in this on-demand course, you’ll be able to:

• Determine how wheel loads on a vehicle relate to center of gravity location loading, aerodynamic forces, road grade, trailer towing forces, and acceleration, braking and cornering
• Describe how the powertrain and brake systems work to produce longitudinal acceleration and deceleration, and how these are influenced by powertrain type and traction limits
• Explain the basic mechanics of road load resistance forces arising from aerodynamics and tire rolling resistance
• Explain the basics of ride and how to design a vehicle and tune suspensions for good ride
• Examine the physics of turning to understand low speed maneuverability and the mechanics of high-speed cornering quantified by the understeer gradient
• Explain the tire, suspension, and steering system properties that account for understeer
• Review the principle types of suspensions, their attributes, and how each functions
• Describe the primary architectural features of a steering system
• Explain the primary mechanisms involved in the vehicle rollover process

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