The acoustic modality of the enclosed cylindrical volute casing with asound-soft boundary and the mathematical modals at a higher order acoustic modal frequencyfor the volute casing of a centrifugal fan with a practical.
根据离心风机蜗壳的结构特点,将其简化为一圆柱体,并00在分析声刚性蜗壳的声学模态的基础上,研究了蜗壳声软边界壁面引起蜗壳声学特性的变化,并由此得到了封闭声软边界圆柱体田壳的声学模态和具有开孔的实际声软边界离心风机蜗壳高阶声学模态频率的数学模型。