噪声与振动控制2016，Vol.36Issue(2)：209-214,6.DOI:10.3969/j.issn.1006-1335.2016.02.046
结合部等效参数在往复式压缩机管线振动分析中的应用
Application of Equivalent Parameters of Joints in Vibration Control of a Reciprocating Compressor Pipeline
摘要
Abstract
In order to solve the problem of vibration in a large reciprocating compressor unit and its pipeline, an effective numerical computation model was established. In this model, the pipeline vibration characteristic analysis method based on the finite element analysis was combined with the dynamic modification technology based on the equivalent parameter. The joint part of the pipeline and the accessory was treated as an elastic constraint, and its optimal equivalent stiffness was calculated. Then, the real vibration model was restored. Based on modal analysis of the real model combined with the field measurement data, the cause of pipeline vibration was identified. Then, using the technology of the equivalent parameter identification, a retrofit scheme for the pipeline was put forward. The improved pipeline could avoid the resonance frequency and the vibration amplitude was reduced by 95.4%. This method has important guiding significance for establishing the effective numerical model for practical engineering.关键词
振动与波/有限元/等效刚度/动力修改/结合部/弹性约束Key words
vibration and wave/finite element/equivalent stiffness/dynamic modification/joints/elastic constraint分类
机械制造引用本文复制引用
王莹,赵杰,刘录,李峰,袁伟..结合部等效参数在往复式压缩机管线振动分析中的应用[J].噪声与振动控制,2016,36(2):209-214,6.基金项目
北京市自然科学基金资助项目（3132013）；北京市大学生科研训练项目（2014X00037）；北京市促进人才培养综合改革项目 （）
