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    • 4. 发明申请
    • COMPOSITE ELASTIC WAVE WAVEGUIDE
    • 复合弹性波浪波
    • WO2016177994A1
    • 2016-11-10
    • PCT/GB2016/051124
    • 2016-04-22
    • UNIVERSITY OF BATH
    • CHEREDNICHENKO, KirillCOOPER, Shane
    • G10K11/162G10K11/168E02D27/34E04H9/02G10K11/24G10K11/36
    • G10K11/162E02D27/34G10K11/168G10K11/24G10K11/36
    • Aspects and embodiments provide a method of selecting physical characteristics of elements forming a composite elastic waveguide structure configurable to propagate an elastic wave and a composite elastic waveguide structure formed from elements having selected physical characteristics. The method comprises: selecting an elastic wave propagation speed within the composite structure; calculating, based on the selected elastic wave propagation speed, a range of values for at least one the physical characteristic of at least one of at least two elements forming the composite structure, such that propagation of the elastic wave through the combined elements of the composite material at the selected elastic wave propagation speed occurs according to a wave mode in which displacement of a surface of the composite material formed from the at least two elements is substantially zero. Aspects recognise that the propagation of elastic waves in a composite material waveguide may differ from the propagation of elastic waves in a homogeneous material waveguide. In particular, in an appropriately designed composite material, an elastic wave of may propagate through the composite structure and leave, for example, the upper surface of the composite structure substantially unmoved. Homogeneous structures do not allow for propagation of elastic waves in such a manner.
    • 方面和实施例提供了一种选择形成复合弹性波导结构的元件的物理特性的方法,所述复合弹性波导结构可配置成传播弹性波,以及由具有选定物理特性的元件形成的复合弹性波导结构。 该方法包括:在复合结构内选择弹性波传播速度; 基于所选择的弹性波传播速度计算形成复合结构的至少两个元件中的至少一个的至少一个的物理特性的值的范围,使得弹性波通过复合材料的组合元件的传播 根据由至少两个元件形成的复合材料的表面的位移基本上为零的波模式发生选择的弹性波传播速度下的材料。 方面认识到复合材料波导中弹性波的传播可能与均质材料波导中的弹性波的传播不同。 特别地,在适当设计的复合材料中,弹性波可以传播通过复合结构,并且离开例如复合结构的上表面基本上不被移动。 均匀结构不允许以这种方式传播弹性波。