某大型轴流压缩机组框架式基础动力特性研究Research on dynamic behavior of frame-type foundation of a large-scale axial flow compressor set
熊晔;何让鹏;白强强;陈孜孜;
摘要(Abstract):
针对某轴流压缩机机组框架式基础,分别不考虑与考虑地基-基础-结构的共同作用,使用ABAQUS有限元软件,进行了模态分析与动力稳态分析计算,得到了轴流压缩机组框架式基础的自振特性与动力稳态响应曲线,同时研究了不同模态阻尼比条件下的基础振动线位移的变化规律。结果表明:不考虑共同作用时的基础动力稳态响应大于考虑共同作用时的动力响应;模态阻尼比对基础顶板振动线位移的幅值有较大影响,模态阻尼比越大,基础顶板振动线位移的幅值越小,而不同模态阻尼比下的基础顶板振动线位移随扰力频率变化的幅频曲线分布规律基本保持一致。
关键词(KeyWords): 框架式基础;动力特性;模态分析;稳态分析;模态阻尼比
基金项目(Foundation):
作者(Authors): 熊晔;何让鹏;白强强;陈孜孜;
DOI: 10.14188/j.1671-8844.2023-02-006
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