【摘要】 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更多还原

【Abstract】 A smaller scale thermoacoustic engine has been successfully built in the laboratory of CAS. The coupling of looped thermoacoustic prime mover with a resonator load has also been realized. Experimental results on the buildup of oscillation in present thermoacoustic system are presented. Two stable modes of operating and the phenomena of periodical alternation between them have been observed experimentally. Some factors of effect on the onset modes of oscillation are revealed experimentally.更多还原