指出了改变了模型配重和输入加速度放大倍数，而不改变模型构件配筋，会引起结构构件抗力失真的现象。
Pointing out if don't adjust the member reinforcement when have changed the artificial mass and acceleration of model, the model will not reflect prototype's resistance.
在纯波条件下，增加配重后，不同模型的受力表现出不同的规律。
In the pure wave tests different models present different change on the force after added weigh.
主要是通过模型计算来确定机组动平衡时配重的大小和方向并编制了计算程序。
The scale and direction of additional weighs are determined by model computing with developed software.
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