Patent ID: 11946828
Assignee: JFE STEEL CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  B | IPC B  G

Claim 4:
5. A side crash test condition determination method for the center pillar of the automobile that determines material property, shape, and dimensions of the rocker-rotation braking plate used in the side crash test apparatus for the center pillar of the automobile according to claim 1 as test conditions, the side crash test condition determination method comprising:
a vehicle-model creation step of creating a vehicle model that modeled the automobile;
a vehicle-model side crash analysis step of, by performing side crash analysis in which a striking body crashes into the side of the center pillar from a side of the vehicle model, acquiring a rotation angle around the axis of the rocker of the automobile in the vehicle model by the side crash analysis;
a side-crash test model creation step of creating a side-crash test model that modeled the crash test structure and the side crash test apparatus;
a rotation-braking plate setting step of setting material property, shape, and dimensions of the rocker-rotation braking plate in the side-crash test model;
a side-crash test model analysis step of, by performing side crash analysis in which a striker crashes into the center pillar of the side-crash test model, acquiring a rotation angle of the rocker simulated part;
a rotation-angle comparison step of comparing the rotation angle of the rocker acquired at the vehicle-model side crash analysis step with the rotation angle of the rocker simulated part acquired at the side-crash test model analysis step;
a repetition step of repeatedly performing the rotation-braking plate setting step, the side-crash test model analysis step, and the rotation-angle comparison step, until the rotation angles compared at the rotation-angle comparison step are in a predetermined range by changing the material property, shape, and dimensions of the rocker-rotation braking plate; and
a test-condition determination step of determining, as test conditions, the material property, shape, and dimensions of the rocker-rotation braking plate in a case where the compared rotation angle of the rocker simulated part and the rotation angle of the rocker are in the predetermined range at the repetition step.