论文部分内容阅读
“小孔喷注噪声和小孔消声器”研究成果自1979年9月在《中国科学》上发表以来,立即引起工业界的重视,小孔消声器用于各种类型排气噪声的控制日益广泛,小孔消声器在高声级喷注噪声治理工程中发挥着愈来愈大的作用.它具有消声量大(一般都在30dB(A)以上),结构简单,体积小,重量轻,易加工制作,安装方便,适应性强等优点,是目前治理喷注噪声较先进的和理想的新型消声器.近年来,我国噪声控制专业工作者,在理论和试验
Since the publication of “Research on orifice injection noise and orifice muffler” published in “China Science” in September 1979, it immediately attracted the attention of the industry. The application of orifice muffler for the control of various types of exhaust noise is increasingly widespread. Small hole muffler plays an increasingly important role in high-level injection noise control project.It has a large muffler volume (usually above 30dB (A)), simple structure, small size, light weight, easy processing , Easy installation, strong adaptability and other advantages, is currently the treatment of jet noise more advanced and ideal new muffler.In recent years, China’s noise control professionals in the theory and test