文献类型：期刊文献

中文题名：基于ASMEAG-1规范的核岛主控室暖通风管隔振吊架系统的有限元谱分析及其抗震评定

英文题名：Finite Element Spectrum Analysis and Seismic Evaluation of Air Conditioning Pipe Hanger System in Nuclear Power Plant Based on ASME AG-1 Codes

作者：王和慧[1];熊志鹏[1];刘超[1];李鹏[1];王艳[1]

机构：[1]华东理工大学机械与动力工程学院,上海200237

年份：2014

卷号：40

期号：3

起止页码：394

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

语种：中文

中文关键词：暖通风管吊架;谱分析;抗震评定;ASME;AG-1规范;有限元法

外文关键词：air conditioning hanger; spectrum analysis; seismic evaluation; ASME AG-1 codes; finite element method

摘要：采用壳单元、空间梁单元、三维等参元、阻尼弹簧单元和集中质量单元对某核岛主控室的暖通风管隔振吊架系统建立有限元模型。首先进行隔振评定、正常工况应力分析和模态分析,然后进行多点地震响应谱分析,最后基于ASME AG-1规范,对板壳型和线型构件的强度与刚度进行分类评定。结果表明,不同工况的谱分析结果与其载荷谱值几乎成比例关系,不同阻尼比系数对谱分析结果影响甚微,只对共振起到不同的抑制作用。为避免谱分析时遗漏重要模态,必须检查并确保模态参与质量总和超过90%。该方法对核岛厂房HVAC设备的隔振设计与抗震评定有参考价值。
Finite element method is applied to evaluate the isolation effect and classified stress strength of the HVAC and its hanger system with static stress analysis, modal analysis and seismic spectrum analysis, in which the shell element, space beam element, 3D isoparametric element, spring-damper and lump mass element are adopted to build the exact 3D finite element （FE） model. The outcome indicates that the spectrum analysis results are nearly propotional to the load value as to the classified evaluation to shell and linear type component basing on ASME AG-1 criteria, whereas the damp hardly has effects on it except for restraining sympathy vibration. In order to make the conclusion convinced, it is necessary to ensure the sum of the mode participation mass beyond 90%. The proposed method is of reference value for the vibration isolation design and seismic strength evaluation for the HVAC in the nuclear power plant.