Any homogeneous viscoelastic medium subjected to one-dimensional tension and compression can be characterized in terms of the phase velocity c ( w ) and the attenuation coefficient deduce the complex modulus and the other equivalent viscoelastic functions 一维的纵向压缩波在同质的粘弹性介质中传播时,材料的粘弹性特性主要通过纵向波的传播速度c(w)和衰减系数a(w)两项来定义。