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To satisfy the model similarity law, it is necessary to add gravity acceleration corresponding to that scale to the structure in the
ground model test.
For example, in case of the model with a scale of 1/100, gravity
acceleration 100G is added to it. This centrifuge loading apparatus can keep adding large gravity acceleratio
of about 100G to such a ground model.
In these tests, the time axis scale is shortened to a square of the
scale. For example, in case of the model with a scale of 1/100, the time
axis is shortened to 1/10000. That is, in this case, the test for a day is equivalent to
the test for 10000 days.
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