合金材料阻尼特性参数识别研究进展

Progress in Characteristics Identification of Damping Alloy

阻尼合金是具有高阻尼特性的金属材料,在不同的应力区表现出不同的阻尼特性,即在低应力区可简化为定常阻尼,在高应力区呈现非线性特性,从定常阻尼参数辨识方法和非线性阻尼的辨识方法这两方面综述了各自的发展情况,并给出了课题组在非线性阻尼辨识及应用方面所做出的相关成果,为相关阻尼合金材料的研究提供了参考。

Damping alloys are a metallic materials with high damping capacity. There are different damping characteristics in different stress zone, i.e. the damping are often regarded as a constant in the lower stress zone, and there is nonlinear behavior in the higher stress zone. the progress of the constant damping identification method and the nonlinear damping identification method are reviewed, and the research results on the application and identification of nonlinear damping obtained by our research group are also presented. It can offer reference for the relevant research of damping alloy.