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设计和建造了一台小型的行波热声发动机 ,实现了与谐振管负荷的耦和匹配。介绍了所研究的热声系统中热声振荡过程的一些实验结果和实验中观察到的两个起振模态以及模态间周期性交替变化的现象 ,对影响起振模态的因素进行了实验研究和分析
A small traveling-wave thermoacoustic engine was designed and constructed to achieve a coupling match with the resonant tube load. Some experimental results of the thermoacoustic oscillation in the thermoacoustic system studied and the phenomena of the two modes of oscillation and the periodic alternation between the modes observed in the experiment are introduced. The factors affecting the modes of starting vibration are introduced Experimental research and analysis