热声热机网络模型演化与机理初探

NETWORK MODEL OF THERMOACOUSTIC ENGINE AND STUDY ON THE MECHANISM

提出了热驱动的热声热机系统是一个动态的演化过程,并运用热力学网络分析方法对这个动态过程进行了实验研究,对实验结果进行了建模和分析。用参数激励机理的振荡理论分析了系统的演化过程,认为时变参数流感是系统演化的网络关键参数,提出了定量判据系统工作能力的指标调制度。

Dynamic evolution of thermoacoustic engine is firstly put forward, and an experimental investigation on the thermoacoustic engine is undertaken. Basing on the experimental results, dynamic network models of the thermoacoustic engine are established. Dynamic evolution is analyzed with parametric excitation, periodically time varying sound inductance is a key network parameter, and a modulator is firstly introduced and this paper suggestes that it can be regarded as a capable index of thermoacousitc engine.