Dynamic Tests of Racing Seats and Simulation with Vedyac Code Politecnico di Milano

Format:

Conference/Event

Author/Creator:

Giavotto, V., author.

Conference Name:

Motorsports Engineering Conference & Exposition (1998-11-16 : Dearborn, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1998

Summary:

Dynamic tests have been performed on carbon fiber racing seats following the FIA regulations. The tests have shown, in rear impact tests, a relatively strong rebound leading to large forward bending of neck, and, in side impact tests, very large lateral displacement of the head, the latter protruding dangerously towards hard portions of the car structure. Stiffening the seat back by steel struts results in reducing strongly both the motion and the acceleration of the head. Simulations of the dynamics of the tests have been done with multi-body models, including the Hybrid III dummy and seat deflection, by means of the program VEDYAC. It has been found that computer simulation can predict very accurately the result of a test, provided the numerical models have been carefully calibrated to match the dummy tolerance bands. Once they have been calibrated and validated with a number of tests, the computer models can be very useful to extend the test results to different test conditions. For example such models have been used to evaluate the effect of the head being out-of-position before impact. The use of simulation is also very important in the design of new seats, where it can give accurate prediction of the tests, reducing greatly the need of further tests

Notes:

Vendor supplied data

Publisher Number:

983059

Access Restriction:

Restricted for use by site license