Method for Simulation Measurement of Nuclear Fuel Plate Spring Compression Force
A technology of compression force and leaf spring, which is applied in the field of simulated measurement of the compression force of nuclear fuel leaf springs, to achieve the effect of improving scientificity and accuracy
Active Publication Date: 2020-09-04
CHINA NUCLEAR POWER TECH RES INST CO LTD +2
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[0008] Such constraints often lead to great limitations of this GUM analysis method
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[0030] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.
[0031] Such as figure 2 As shown, the method for carrying out nuclear fuel leaf spring compression force simulation measurement in a preferred embodiment of the present invention comprises steps:
[0032] S1: According to the sources of uncertainty, obtain the independent variables that affect the pressing force;
[0033] S2: Select the state point of the working condition of the pressing force measurement;
[0034] S3: performing Monte Carlo random sampling on each of the independent variables at the state point of the pressing force measurement working condition to form a set of input parameters;
[0035] S4: Input the input parameters into the compression force measurement model to obtain the corresponding compres...
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The invention relates to the field of nuclear-power nuclear fuel performance analysis technology, and discloses a method of carrying out spring compression force simulation measurement of a nuclear fuel plate. The method includes: S1, obtaining independent variables, which influence a compression force, according to uncertainty sources; S2, selecting a compression force measurement working condition state point; S3, carrying out Monte Carlo random sampling on each independent variable under the compression force measurement working condition state point, and forming an input parameter set; S4, inputting input parameters into a compression force measurement model to obtain a corresponding compression force result; and S5, repeating the S3 and the S4 for a plurality of times to obtain a plurality of compression force measurement results, inputting spring design reference parameters of the nuclear fuel plate of a power station into the compression force measurement model to obtain a design reference compression force result, comparing the plurality of compression force measurement results and the design reference compression force result, and counting comparison results to obtain the total uncertainty of the compression force. By implementing the technical solution of the invention, simulation measurement that is closest to the reality can be carried out on compression force changes.
Description
technical field [0001] The invention relates to the technical field of nuclear power nuclear fuel performance analysis, in particular to a method for simulating and measuring the pressing force of a nuclear fuel plate spring. Background technique [0002] The analysis of uncertainty in the process of simulation measurement of fuel compaction force has always been the GUM method (general uncertainty simulation measurement method), through the simulation measurement of the nominal value, and then the uncertainty is superimposed by a certain method Thus, the uncertainty of the simulated measurement results is obtained. The specific process is as follows: [0003] The GUM method compression force simulation measurement process is as follows: figure 1 shown. [0004] This type of GUM analysis method has great limitations, and the following assumptions need to be satisfied first: [0005] 1. Assume that the probability distribution of the input quantity is symmetrically distri...
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IPC IPC(8): G06F30/20G06F119/14
CPCG06F30/20G06F2119/06
Inventor 刘虓瀚金鑫卫小艳王佳眉胡坡林少芳邓勇军聂立红
Owner CHINA NUCLEAR POWER TECH RES INST CO LTD