Efficient Approach for Simulating Response of Multi-Body Structure in Reactor Core Subjected to Seismic Loading

ZHANG Hongkun; CEN Song; WANG Haitao; CHENG Huanyu

Volume 33 Issue 2

Mar. 2025

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Article Navigation > Nuclear Power Engineering > 2012 > 33(2): 51-55

ZHANG Hongkun, CEN Song, WANG Haitao, CHENG Huanyu. Efficient Approach for Simulating Response of Multi-Body Structure in Reactor Core Subjected to Seismic Loading[J]. Nuclear Power Engineering, 2012, 33(2): 51-55.

Citation:

ZHANG Hongkun, CEN Song, WANG Haitao, CHENG Huanyu. Efficient Approach for Simulating Response of Multi-Body Structure in Reactor Core Subjected to Seismic Loading[J]. Nuclear Power Engineering, 2012, 33(2): 51-55.

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Efficient Approach for Simulating Response of Multi-Body Structure in Reactor Core Subjected to Seismic Loading

1. School of Aerospace, Tsinghua University, Beijing, 100084, China;
2. Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China;
3. AML, Tsinghua University, Beijing, 100084, China;
4. National Key Laboratory of Equipment & Control of Wind Turbines, GUODIAN United Power Technology Company Ltd., Beijing, 100039, China

Received Date: 2010-06-28
Rev Recd Date: 2011-09-12

Available Online: 2025-03-08

Abstract

Abstract

An efficient 3D approach is proposed for simulating the complicated responses of the multi-body structure in reactor core under seismic loading.By utilizing the rigid-body and connector functions of the software Abaqus,the multi-body structure of the reactor core is simplified as a mass-point system interlinked by spring-dashpot connectors.And reasonable schemes are used for determining various connector coefficients.Furthermore,a scripting program is also complied for the 3D parametric modeling.Numerical examples show that,the proposed method can not only produce the results which satisfy the engineering requirements,but also improve the computational efficiency more than 100 times.
- Reactor core,
- Multi-body structure,
- Seismic loading