The dynamic mechanical property of polyurethane damping material has been studied.
研究了聚氨酯阻尼材料的动态力学性能。
Considering the non-linear behavior of the viscoelastic material according to the change of environment, the GRNN is used to make a model to predict the dynamic property of the material.
考虑到粘弹性材料阻尼性能随环境的非线性变化，运用GRNN(广义回归网络)对粘弹阻尼材料动态力学性能函数进行逼近，并构建预测模型。
Law of dynamic tensile property of tungsten alloy with notch or without notch was mensurated, and material microcosmic fragment mechanism was observed.
测定了光滑和缺口钨合金材料在不同应变率下动态拉伸性能的变化规律，观察了材料断裂的微观机制。
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