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中文摘要：
谐振管作为热声发动机的重要组成部分，其长度占整个系统轴向长度的大部分。本文提出了一种利用液体和弹性膜组成谐振系统的方法，并使用这种谐振系统取代谐振管，使系统轴向尺寸减少为原来的1／5。文中利用线性热声理论对该谐振系统的谐振频率进行了计算，并对不同阻尼系数对系统的耗散做出了分析。实验结果表明，在利用驻波热声发动机驱动的情况下，谐振系统自激起振，谐振频率为360Hz，实际谐振频率与计算值误差在5％以内。
英文摘要：
The resonator tube is essential for the thermoacoustic engine, which occupies a large part of the entire system in length. A new resonating method composed with liquid and film is introduced in the paper to replace the resonator tube. This method can reduce the size of thermoacoustic system to 1/5 compared with before. By use of linear-thermoacoustic theory the frequency of the system is simulated as well as the dissipation in different resistance. A self-oscillation is observed in the experiment with a frequency of 360 Hz when the liquid-resonator is driven by a standing-wave thermoacoustic engine. The frequency difference between the experimental result and the computational is within 5%.
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