摘要
应用于热声机械的声波平面传递装置,由柔性部分和刚性片部分组成。通过引入柔性结构,将传递声波所必需的弹性部分和惯性部分分开,实现刚性片的平面运动,从而达到声波的平面传递。依据弹性部分的不同形式,声波平面传递装置有3种形式:弹性膜型、折环型和弹性环型。将这种装置应用于热声机械中,可以大大改善热声系统中声波传递的性能,拓展热声机械的应用。例如抑制Gedeon直流,满足热声机械自身及与其它机械系统的谐振耦合。
Plane wave transmission device used for thermoacoustic systems are composed of flexible and rigid parts.Elastic and inertial parts achieving plane wave transmission were separated by introduction of flexible construction.According to different forms of elastic part,plane wave transmission device has three forms： elastic membrane,edge and elastic ring.These device used for thermoacoustic system can improve the properties of wave transmission and expand the application of thermoacoustic device,such as inhibiting the Gedeon streaming,coupling resonant of thermoacoustic and other mechanical systems.
出处
《低温工程》
CAS
CSCD
北大核心
2011年第1期19-25,共7页
Cryogenics
基金
国家自然科学基金资助项目(No.50906094)
关键词
声波平面传递
热声机械
折环
Gedeon直流
耦合
plane wave transmission system
thermoacoustic device
edge
gedeon streaming
coupling
