Test device for vehicle roof stiffness

Details Test device for vehicle roof stiffness Test device for vehicle roof stiffness

1990-03-26

1991-01-08

Raevis, Robert

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

G01N 320

Patent

active

049826093

ABSTRACT:
An apparatus for use in measuring the roof panel stiffness of an automatic vehicle having a unitized steel body construction. The apparatus comprises a support structure for positioning an upper cross beam assembly in a spaced exterior manner above the roof panel. The cross beam assembly comprising an upper arch beam and a lower lever arm having one end pivotally connected to one side of the cross beam for supporting a load cell on the roof panel upper surface. A low voltage displacement transducer is supported between the arch beam and the lever arm in vertical alignment with the load cell. Loads applied to the free end of the lever arm are measured by the load cell while resultant deflections are measured by the transducer. The transducer and load cell are adapted to be electrically connected to an X-Y plotter, so as to provide a load/deflection curve for the roof panel.

REFERENCES:
patent: 4101061 (1978-07-01), Sage et al.
patent: 4108719 (1978-08-01), Olshausen
patent: 4213349 (1980-07-01), Miura
patent: 4589288 (1986-05-01), Porter et al.
patent: 4830908 (1989-05-01), Nakajima et al.

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