天津科技大学学报2017，Vol.32Issue(6)：59-64,6.DOI:10.13364/j.issn.1672-6510.20160079
基于有限元法纸机压榨辊振动声辐射研究
On the Sound Radiation of the Press Roll Vibration of Paper Machine Based on FEM
摘要
Abstract
Sound radiation analyses of the press roll based on FEM were accomplished by using acoustic software,which included the dynamic analyses and sound radiation study of the press roll.According to computing results,at the designed working speed of 450,m/min,the press roll would work with long-term stability.The intense sound pressure is mainly in the middle region of the field point mesh,reaching 85,dB at most frequencies.The sound pressure curve was almost the same at five measured points.When the frequency range was 0-50,Hz,the maximum sound pressure curve was consistent with the natural bending frequency of the press roll,and the imbalance quality of the roll was the main cause of the sound radiation.关键词
压榨部振动/声压频率/声辐射/有限元法(FEM)Key words
press section vibration/sound pressure frequency/sound radiation/finite element method(FEM)分类
轻工纺织引用本文复制引用
洪义梅,曾志坚,林强..基于有限元法纸机压榨辊振动声辐射研究[J].天津科技大学学报,2017,32(6):59-64,6.基金项目
天津市应用基础与前沿技术研究计划重点项目(13JCZDJC33700) （13JCZDJC33700）
制浆造纸工程国家重点实验室开放基金项目(201211) （201211）
