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Reactor body seismic response analysis method

A technology of seismic response and analysis methods, applied in seismic signal processing and other directions to avoid errors

Active Publication Date: 2011-09-14
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims at the problem that the complex structure decoupling analysis in the prior art may bring large errors, and provides a new method for analyzing the seismic response of the reactor body

Method used

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Embodiment Construction

[0013] The technical solution of the present invention will be further elaborated below in conjunction with the accompanying drawings.

[0014] In this embodiment, the seismic response analysis of the pool-type sodium-cooled fast reactor body is taken as an example. The mutual support relationship between the equipment of the pool type sodium-cooled fast reactor body structure is as follows: figure 1 As shown, the vertical connection in the figure expresses the support relationship among the various devices. All the weight loads of the whole stack body system and the possible earthquake action during stack operation are transmitted to the building structure by the support skirt through the embedded steel plate at the bottom of the pile pit. The connection form between the bottom of the support skirt and the embedded steel plate of the building structure is Welding is the support boundary of the stack body structure, which is considered as the fixed end in the calculation.

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Abstract

The invention discloses an earthquake response analytical method used for a reactor body. The method of the invention comprises the following steps of: establishing a calculation module, FEA meshing, applying boundary conditions and loads, solving, extracting the results, evaluating and the like. The key point of the invention is that when the calculation module is being established, an integrated model is established, and the decoupling problem between sub-systems is not considered. The method of the invention really reflects the connection relation between all equipments and between the equipment and the reactor body, and avoids the error due to the decoupling without the decoupling processing of any structures.

Description

technical field [0001] The invention belongs to the technical field of seismology, and in particular relates to a seismic response analysis method of a reactor body. Background technique [0002] When the seismic response analysis of the large structure of the reactor body is carried out, if the traditional analysis method is used, it is first necessary to decouple according to the principle of decoupling, decompose the large complex structure into many small simple parts, and then start the individual analysis. For example, in order to obtain the stress and deformation results of certain parts of the equipment on the stack body (such as pumps, intermediate heat exchangers, control rod drive mechanisms, etc.), it is necessary to first decouple the equipment on the stack body according to the principle of decoupling. The junction of the heap body is treated as a suitable boundary. The biggest disadvantage of this method is that it is difficult to deal with the boundary condi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/30
Inventor 徐銤文静李海龙余华金宋青阮霖鲍杨民
Owner CHINA INSTITUTE OF ATOMIC ENERGY