[1]李守巨,王荣成,屈福政,等.地震作用下核环吊楼层反应谱特性研究[J].自然灾害学报,2018,(01):175-185.[doi:10.13577/j.jnd.2018.0121]
 LI Shouju,WANG Rongcheng,QU Fuzheng,et al.Research on floor response spectrum of polar crane in nuclear power plant under earthquake[J].,2018,(01):175-185.[doi:10.13577/j.jnd.2018.0121]
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地震作用下核环吊楼层反应谱特性研究
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
期数:
2018年01期
页码:
175-185
栏目:
出版日期:
2018-02-28

文章信息/Info

Title:
Research on floor response spectrum of polar crane in nuclear power plant under earthquake
作者:
李守巨1 王荣成1 屈福政2 苏冬3 刘大强3 徐宏伟3
1. 大连理工大学 工业装备结构分析国家重点实验室, 辽宁 大连 116024;
2. 大连理工大学 机械工程学院, 辽宁 大连 116024;
3. 大连华锐重工集团股份有限公司, 辽宁 大连 116024
Author(s):
LI Shouju1 WANG Rongcheng1 QU Fuzheng2 SU Dong3 LIU Daqiang3 XU Hongwei3
1. State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China;
2. College of Mechanical Engineering, Dalian University of Technology, Dalian 116024 China;
3. Dalian Huarui Heavy Industry Group Co Ltd, Dalian 116024, China
关键词:
核环吊地震作用有限元方法时程分析楼层反应谱
Keywords:
polar crane in NPPearthquakefinite element methodtime-history analysisfloor response spectrum
分类号:
X9P511.2;TL48;TH21
DOI:
10.13577/j.jnd.2018.0121
摘要:
核环吊楼层反应谱对评估核电结构和设备的抗震安全性具有重要作用。采用有限元方法,应用ANSYS软件建立三维核环吊结构计算模型,数值模拟了地震作用下核环吊楼层反应谱特性。通过时程分析法,选取3种典型地震动作为输入地震动,模拟得到核环吊楼层的加速度时程曲线,通过Duhamel积分,得到不同阻尼比下核环吊结构的地表反应谱和楼层反应谱。研究表明,核环吊安全壳对地震动存在一种放大机制,与地表反应谱相比,核环吊水平向的楼层反应谱峰值提高2-10倍,而竖向楼层反应谱峰值扩大3-9倍。同时发现合理选择核环吊结构的阻尼和输入的地震动是十分重要的。该结果对于指导下一步核环吊缩尺模型振动试验具有重要意义。
Abstract:
The floor response spectrum (FRS) has great significance for the seismic safety assessment of structure and equipment in nuclear power plant(NPP). Using ANSYS software, the three-dimensional model of polar crane is established and the seismic characteristics of FRS for the polar crane structure are analyzed numerically with the finite element method. The acceleration time-history curves are simulated and obtained through the three typical seismic waves by using the time-history analysis method. The seismic response spectrum is generated under the condition of different damping ratio by the Duhamel integral. The obtained numerical results highlight the amplification effect of the steel containment vessel to the ground vibration. Compared with the ground surface response spectrum (GSRS), the peak values of FRS of the crane structure in horizontal direction are increased from 2 to 10 times, and the values in vertical direction are raised from 3 to 9 times.Meanwhile, it is important to select input seismic wave and the damping of polar crane reasonably. The results are of great significance to the shaking table test of polar crane’s scale model in further investigation.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-03-03;改回日期:2017-07-01。
基金项目:国家重点基础研究发展计划(2015CB057804);国家自然科学基金(51105048,51209028);工业装备结构分析国家重点实验室开放基金(S15206)
作者简介:李守巨(1960-),男,教授,博士,主要从事计算力学及其参数反演方面的研究.Email:lishouju@dlut.edu.cn
更新日期/Last Update: 1900-01-01