1972-02-01

Modal Modeling Techniques for Vehicle Shake Analysis 720045

A modal model is a concise and convenient way to describe the dynamic characteristics of a structural subsystem of a vehicle, such as a frame or a body structure. Techniques have been developed for obtaining a modal model by fitting the model to measured frequency responses. These modal models are then used as “building blocks” and coupled to mathematical models of the vehicle's other subsystems (the suspensions, the engine mounting system, etc.) to simulate the total vehicle system.
This paper explains the basic theory of modal modeling, including the concepts of mode shape scaling and residual compliances. Some sample vehicle shake simulation studies are also discussed.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 17% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Product Development Support with Integrated Simulation Modeling

1999-01-2812

View Details

TECHNICAL PAPER

Product Development Support with Integrated Simulation Modeling

1999-01-2812

View Details

TECHNICAL PAPER

Permanent-Magnet DC Motor Actuators Application in Automotive Energy-Regenerative Active Suspensions

2009-01-0227

View Details

X