论文部分内容阅读
针对Pyrak-Nolte等人在计算多结构面的总透射系数时存在的问题,把非充填型结构面抽象为弹簧,用参数K/(Zω)讨论结构面刚度、频率和间距对应力波在多结构面间多次反射和透射的影响。研究结果表明:波形相关系数和透射系数随结构面参数变化具有相同的变化规律;结构面间距与波长之比存在一个临界值,当结构面间距与波长之比大于该临界值时,多重反射和透射对应力波传播过程影响很小,可以认为结构面间距对总透射系数没有影响;临界值与K/(Zω)有关,K/(Zω)增大,临界值减小。
In order to solve the problem that Pyrak-Nolte et al. Used to calculate the total transmission coefficient of multi-structural plane, the non-infilled structural plane is abstracted as a spring, and the stiffness of structural plane is discussed by the parameter K / (Zω) Effect of multiple reflection and transmission between the structural planes. The results show that the correlation coefficients and transmission coefficients of the waveforms have the same variation with the parameters of the structural plane. The ratio of the structural plane to the wavelength has a critical value. When the ratio of the structural plane to the wavelength is larger than the critical value, Transmission has little effect on the propagation of stress waves. It can be considered that the distance between structure planes has no effect on the total transmission coefficient. The critical value is related to K / (Zω), K / (Zω) increases, and the critical value decreases.