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文献 [1]报道了本混合型热声发动机存在两个振动模态———高频模态和低频模态。在试验上成功地获得了稳定的高频模态。首次对这两个模态的本征特性及其演变规律进行了详细的对比分析 ,发现这是两个显著不同的热声模态。在理论上对该型热机进行了初步的探讨 ,分析了该模态行为对系统的稳定性的重要影响 ,并指出了这种效应的工程意义。
Literature [1] reported that the hybrid thermoacoustic engine has two vibration modes - high frequency mode and low frequency mode. In the experiment successfully obtained a stable high-frequency mode. For the first time, the eigen characteristics of these two modes and its evolution are analyzed in detail. It is found that there are two distinct thermoacoustic modes. In theory, this type of heat engine is discussed preliminarily, the important influence of the modal behavior on the stability of the system is analyzed, and the engineering significance of this effect is pointed out.