Measuring and testing – Vibration – Vibrator
Patent
1991-09-10
1993-11-09
Williams, Hezron E.
Measuring and testing
Vibration
Vibrator
G01M 1704
Patent
active
052592464
ABSTRACT:
Apparatus for testing a wheel suspension of a vehicle, comprising at least one measuring plate adapted to be moved by an excitation mechanism, a first measuring device for each measuring plate for measuring vertical forces exerted by an air tire of the vehicle on the measuring plate, a processing unit for processing measured values provided by the first measuring device and a display unit for displaying a measuring result. Further, a second measuring device is provided for measuring a selected one of a position, velocity and acceleration of the measuring plate. The processing unit being adapted to determine a transfer function of the wheel suspension from the measuring values of the first measured device and measured values of the second measuring device, the wheel suspension comprising a plurality of system elements, each of the system elements carrying a system value. The processing unit being adapted to compute values of the system elements from the transfer function the processing unit being adapted to utilize the system values to further compute at least one evaluation variable, and adapted to compare the evaluation variable with a stored evaluation variable, the processing unit being further adapted to estimate a final evaluation of the wheel suspension from the comparison, and the display unit being adapted to display the final evaluation.
REFERENCES:
patent: 3815404 (1974-06-01), Brisard
patent: 3855841 (1974-12-01), Hunter
patent: 3981174 (1976-09-01), Himmler
patent: 4103532 (1978-08-01), Buzzi
patent: 4589273 (1986-05-01), Tamasi et al.
Analogic Engineering, B.V.
Finley Rose M.
Williams Hezron E.
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