Measuring and Modeling Suspensions of Passenger Vehicles MEA Forensic Engineers and Scientists

Format:

Conference/Event

Author/Creator:

Heinrichs, Heinrichs, author.

Contributor:

Fix, Ryan

Goulet, Jean-Francois

King, Mathieu

Conference Name:

SAE 2013 World Congress & Exhibition (2013-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2013

Summary:

Numerical parameters describing suspension stiffness and damping are required for 3D simulation of vehicle trajectories, but may not be available. This paper outlines a simple, portable method of measuring these properties with a coefficient of variation of 5% on stiffness. 24 of 26 vehicles tested were significantly stiffer in roll than pitch, complicating analyses with models that don't include anti-roll. Suspension parameters did not correlate with static wheel load distribution, and damping coefficient did not correlate with natural frequency.Computer simulations of the speed required to initiate rollover in an S-curve were highly sensitive to the suspension parameters used. When pre-impact tire marks and rollover distance were considered, the simulations became almost insensitive to suspension parameters

Notes:

Vendor supplied data

Publisher Number:

2013-01-0774

Access Restriction:

Restricted for use by site license