论文标题
通过双线性弹簧系统的单方面和非年份传输
Unilateral and nonreciprocal transmission through bilinear spring systems
论文作者
论文摘要
在双线性弹簧系统连接的一对波导中考虑了纵向波的传播。非线性的性质会导致双线性弹簧的压缩力和拉伸力 - 置换关系以部分线性的方式行为，所有这些都与入射波振幅线性地缩放和反射波。我们首先专注于连接两个波导的单线弹簧。通过控制双线性刚度参数，可以将时间谐波事件波转换为同一时期的传输波，但具有单个符号的粒子位移，即正或负，这是我们称为单侧传输的效果。通过引入空间不对称来获得非肾波浪现象。一个具有质量和线性弹簧的单线弹簧的简单组合显示出明显的非肾脏，透射率在一个方向上相对较高，在相反方向上较低。
Longitudinal wave propagation is considered in a pair of waveguides connected by bilinear spring systems. The nature of the nonlinearity causes the compressive and tensile force-displacement relations of the bilinear spring to behave in a piece-wise linear manner, and all transmitted and reflected waves scale linearly with the incident wave amplitude. We first concentrate on a single bilinear spring connecting two waveguides. By controlling the bilinear stiffness parameters it is possible to convert a time harmonic incident wave into a transmitted wave of the same period but with particle displacement of a single sign, positive or negative, an effect we call unilateral transmission. Nonreciprocal wave phenomena are obtained by introducing spatial asymmetry. A simple combination of a single bilinear spring with a mass and a linear spring shows significant nonreciprocity with transmission relatively high in one direction and low in the opposite direction.
