Dynamic Influence of Frame Stiffness on Heavy Truck Ride Evaluation Advanced Vehicle Dynamics Laboratory Department of Mechanical Engineering, Virginia Tech

Format:

Conference/Event

Author/Creator:

Ahmadian, Mehdi, author.

Conference Name:

SAE Commercial Vehicle Engineering Congress & Exhibition (2004-10-26 : Rosemont, Illinois, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2004

Summary:

This experimental study determines the effect of truck frame stiffness on truck ride, as measured by B-post vertical and fore-aft accelerations. After describing the test setup, the paper will describe the details of two truck frames that are used in a series of tests conducted on a class-8 truck in the laboratory. The frames that are used for the tests include what commonly is used in production trucks in North American markets (called "baseline" frame), and a frame that is 15% thinner (called "thin" frame). The test results, which are analyzed in frequency domain, are compared for the two frames. They indicate that the thin frame performs similar to the baseline frame when the truck is subjected to heave inputs. For roll inputs, the thin frame causes an increase in B-post accelerations, mostly at frequencies associated with the frame beaming and the primary (axle) suspension resonance. The study concludes that field testing with both frame are needed to determine if the B-post acceleration increases that are measured in the laboratory cause a ride that is objectionable to the truck driver and occupants

Notes:

Vendor supplied data

Publisher Number:

2004-01-2623

Access Restriction:

Restricted for use by site license