【摘要】 利用频谱分析方法对漏斗结构噪声进行了功率谱分析,结合漏斗有限元模型的模态分析,确定漏斗侧板共振是产生噪声的原因,并介绍了噪声治理的方法。更多还原

【Abstract】 The noise from screen funnel was analyzed by means of power spectrum analysis method. Through modal analysis of finite element model, it was found the radiate noise from the screen funnel was mainly resulted from resonance at some frequencies . The paper provides a method for analysis and treatment of such noise.更多还原