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.

SAE MOBILUS

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