高转速离心式压缩机构架基础振动分析

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作者单位:: 中国石油天然气华东勘察设计研究院,山东青岛 266071
East China Survey Design and Research Institute of CNPC,Qingdao,Shandong 266071 China

关键词:: 动力基础;振动;频率;振幅;影响因素;分析
dynamically loaded foundation;vibration;frequency;influence factor;analysis

摘要:: 构架式基础是离心式压缩机基础的主要结构形式,这类基础的动力计算是一个复杂的空间结构问题,现大多采用有限自由度体系计算.为了分析动力基础的振动特性,以某炼油厂的压缩机基础为例,建立了动力基础计算模型,通过不同影响因素变化的对比计算,阐述了动力基础的参振质量、顶板刚度、柱截面尺寸、地基刚度等主要因素对基础振动特性的影响.
Frame type foundation is a main structural form for centrifugal compressor.Mostly,the dynamic calculation on this type foundation is carried out with finite freedom degree system.Taking a compressor foundation in one refinery as an example for vibration analysis,the calculation mo-del of dynamically loaded foundation was established.Then through the comparative calculations,the effects of the main factors including vib-ration participation mass,top plate stiffness,column cross-section dimension and foundation stiffness on foundation stiffness vibration were presented.

2005,6(6): 22-23 收稿日期：2005-7-27

分类号：TE974

作者简介：梁秀岩(1966-),女,黑龙江齐齐哈尔人,毕业于长春建筑专科学校,现从事上建结构设计工作.