The experimental results show that the internal friction peak of the material in the three conditions appears differently, and the influence of temperature on the characteristics of frequence of internal friction in the 3-Point Bending mode is greatest; t
The experimental results show that the internal friction peak of the material in the three conditions appears differently, and the influence of temperature on the characteristics of frequence of internal friction in the 3-Point Bending mode is greatest; t
结果表明：泡沫铝硅合金在不同边界条件下的内耗峰出现情况不同，且温度对三点弯曲模式时内耗的频率特性影响最大；三种边界条件下泡沫铝硅合金的内耗的振幅效应基本相似；温度对该材料在三点弯曲模式比单双悬臂梁振动模式下内耗的影响更大。