1974-02-01

ATechnique for the Validation of Vehicle Models Using the Road Simulator 740945

One of the more important aspects of vehicle design is mechanical mobility. This term is a measure of how fast a vehicle can get from point A to point B without breaking while preserving the cargo and driver comfort.
The road simulator has been used extensively as a laboratory tool to determine the durability aspect of the mechanical mobility problem.
The objective of this paper is to show how the road simulator is used to provide the engineer with a validated mathematical model which he can then use to perform a parametric study to improve ride comfort.
Specific areas of discussion are: mathematical model verification; correlation of model and simulator data; parameter adjustment to obtain improved ride.
As a result of this study, the design engineer has a more precise vehicle model than has been available, and the test engineer has a verified laboratory simulation technique for vertical dynamic terrain inputs. The combined effect of these two engineering tools will serve to produce a better vehicle initially which, in turn, will eliminate many of the initial field test failures.

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