Browse Publications Technical Papers 1999-01-0629

A New Dummy for Vibration Transmissibility Measurement in Improving Ride Comfort 1999-01-0629

Continuing effort in measuring human vibration response results in a new design of vibration comfort dummy. The difference between this new dummy and other mechanical dummies is that (1) it uses a soft human-tissue like lower torso so it matches compliance better than the previous ones, and (2) it utilizes the spring and damping characteristics of the compliant lower torso. The lower torso is integrated with a spring-mass load simulating the top body of human so that the integrated dummy consists of two parts. This unique design greatly improves the accuracy and stability of transmissibility measurement and provides a direct application tool in seat prototype development. The results measured with dummy are compared with that measured with 3 human subjects in different percentiles and good match is found in the first transmissibility resonance and overall vibration response. As an outcome, the dummy is used to replace human subjects to conduct a series of design of experiment tests to find the optimal component combinaitons. Structural improvements in transmissibility is obtained. This paper is a continuing study focused on correlating the dummy vibration response to human response. The results show that the earlier research has paid off and a dummy can help seat prototype design in improving ride comfort.


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


Members save up to 16% 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:

Development of a Finite Element Model of the Thor Crash Test Dummy


View Details


Validation of Virtual Driver Model for Design of Automotive Seating Packages


View Details


Predicting Driving Postures and Seated Positions in SUVs Using a 3D Digital Human Modeling Tool


View Details