外激励热声谐振管有限元模型研究

Study on thermoacoustic resonator FEA model with exterior inspirator

运用有限元方法,对扁环型谐振管进行了膜态分析和谐响应分析,研究了弹性模量和密度与其固有谐振频率之间的关系,计算并分析了扁环管在不同载荷和激励频率下的振动特性。外激励的驱动方式可以使扁环型谐振管产生有效的行波分量,在谐振频率下,谐振管腔的综合变形量最大。

The finite element analysis （FEA） was used to study the fiat loop resonator. Through the modal analysis and harmonious response analysis, the relationship between elasticity and density with intrinsic frequency was investigated respectively. Furthermore, the oscillating characteristics of fiat loop resonator under resonant frequency were shown and analyzed. The external inspirator is available to drive the resonator to produce traveling wave. Under resonant frequency the distortion of resonator reached a peak.