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Multi-target radiation shielding design method

A technology of radiation shielding and design method, applied in the field of engineering, to avoid the selection of weighting factors

Pending Publication Date: 2020-10-30
XI AN JIAOTONG UNIV
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Problems solved by technology

However, their method is limited to the optimization of shielding materials and can only do single-objective optimization

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Embodiment Construction

[0017] The present invention is described in further detail below in conjunction with accompanying drawing:

[0018] refer to figure 2 , the multi-target radiation shielding design method of the present invention comprises the following steps:

[0019] 1) Model the shielding model to be optimized in the radiation particle transport software, and then set the optimization parameters, objective function and termination conditions;

[0020] 2) The radiation particle transport software generates an initial value Q with a quantity of N G As an optimization parameter, it is substituted into the radiation particle transport software for calculation;

[0021] 3) Set the N initial values ​​Q G Substituting into the radiation particle transport software to calculate the value of the corresponding objective function, and then evaluate the value of each objective function;

[0022] 4) select some initial values ​​according to the evaluation result of step 3);

[0023] 5) Process the...

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Abstract

The invention discloses a multi-target radiation shielding design method. The method comprises the following steps: 1) modeling a shielding model needing to be optimized in radiation particle transportation software; 2) substituting the initial value QG with the number of N generated by the radiation particle transport software into the radiation particle transport software as an optimization parameter for calculation; 3) evaluating the value of each target function; 4) selecting a plurality of initial values; 5) obtaining a plurality of new individuals RG; 6) taking the plurality of new individuals RG obtained in the step 5) as new initial values; turning to the step 3); and obtaining the Pareto optimal leading edge of each target until a termination condition is satisfied, and performingradiation shielding design according to the Pareto optimal leading edge of each target. According to the method, the radiation shielding design can be realized on the basis of multi-objective optimization, and the weight relationship between the objectives can be provided, so that a shielding designer can balance and select an appropriate solution according to the actual situation.

Description

technical field [0001] The invention belongs to the technical field of engineering and relates to a multi-objective radiation shielding design method. Background technique [0002] At present, radiation shielding design is mostly based on artificial empirical methods. In order to make radiation shielding more lightweight, compact and safe, optimization algorithms have been cited in some researches on radiation shielding design. Koreans Kim and Moon (B.S.Kim and J.H.Moon, "Use of a genetic algorithm in the search for a near-optimal shielding design," Ann.Nucl.Energy, vol.37, no.2, pp.120–129, 2010 .) proposed a multi-layer structure shielding design using genetic algorithm. Brazil's Tunes (M.A.Tunes, C.R.E. de Oliveira, and C.G. "Multi-objective optimization of a compact pressurized water nuclear reactorcomputational model for biological shielding design using innovative materials," Nucl.Eng.Des., vol.313, pp.20–28, Mar.2017.) proposed a genetic algorithm based and multi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/27G06F111/06
CPCG06F30/27G06F2111/06
Inventor 王盛马宝龙杜鑫李晓博
Owner XI AN JIAOTONG UNIV
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