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Electronic detonator shock resistance evaluation and optimization design method

A technology of impact resistance and electronic detonator, which is applied in design optimization/simulation, offensive equipment, electrical digital data processing, etc., can solve problems that restrict the quality of electronic detonators, shorten the development cycle, speed up the development progress, and reduce manufacturing costs. Effect

Pending Publication Date: 2022-05-13
CHINA GEZHOUBA GRP YIPULI CO LTD
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AI Technical Summary

Problems solved by technology

The lack of existing electronic detonator shock resistance performance evaluation and optimal design methods has become a major obstacle restricting the quality of electronic detonators.

Method used

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  • Electronic detonator shock resistance evaluation and optimization design method
  • Electronic detonator shock resistance evaluation and optimization design method
  • Electronic detonator shock resistance evaluation and optimization design method

Examples

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Effect test

Embodiment 1

[0050] Example 1, see figure 1 , figure 2 , image 3 , a method for evaluating the impact resistance of an electronic detonator, comprising the following steps;

[0051] S1, impact strength test: determine the critical load value of detonator impact failure by impact simulation test, carry out statistical analysis to test data, obtain the probability distribution function g(r)=(r) of the impact resistance r of this batch of electronic detonators 1 , r 2 ,...,r n ); where, n is the number of impact simulation tests;

[0052] S2. On-site impact load test and statistical analysis: test the impact load in the test hole through multiple on-site test holes, determine the peak impact load of the electronic detonator in the test hole, and perform statistical analysis on the test data to obtain the test hole in the on-site environment The probability distribution function h(s)=h(s) of the peak value of the internal impact load 1 ,s 2 ,...,s m ); where, m is the number of impac...

Embodiment 2

[0068] Example 2, see figure 1 , figure 2 and image 3 , an optimal design method for an electronic detonator, comprising the following steps in sequence:

[0069] The first step, preliminary design: conduct preliminary design of electronic detonator structure based on the determined reliability index β and design safety margin Nc;

[0070] The second step, safety and reliability evaluation: apply the electronic detonator shock resistance performance evaluation method of embodiment 1, carry out safety and reliability evaluation to the electronic detonator produced by the design standard, and based on failure probability F and safety margin N Quantitative data to give the evaluation results of "pass" or "failure";

[0071] The third step is to determine the follow-up work based on the evaluation result: when the evaluation result is "qualified", execute the fifth or sixth step; when the evaluation result is "unqualified", execute the fourth step;

[0072] The fourth step i...

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Abstract

The invention discloses an impact resistance evaluation and optimization design method for an electronic detonator. The impact resistance evaluation method comprises the following steps: testing impact strength; carrying out field impact load test and statistical analysis; inversely calculating a probability distribution function of a real impact load peak value in the blast hole in the field blasting environment; constructing a stress-strength interference model, and calculating a failure probability; and evaluating the impact resistance. The electronic detonator optimization design method is carried out based on the evaluation result. The method has the advantages that the failure rate model built based on the stress-strength interference theory is creatively introduced into the evaluation method, a comprehensive evaluation result including the failure rate and the safety margin is formed, and a theoretical basis and method are provided for reliability analysis, design and full life cycle management of electronic detonator core elements and systems. The optimization design method is developed based on the evaluation result, a direction is pointed out for improvement of the electronic detonator, the development period of the electronic detonator is shortened, and the overall development progress is accelerated.

Description

technical field [0001] The invention relates to a technology for evaluating the performance of electronic detonators in engineering blasting, in particular to a method for evaluating the impact resistance of electronic detonators based on a stress-strength interference model in the field of engineering blasting and an optimization design method thereof. Background technique [0002] Industrial electronic detonators use chip modules to replace the delay charge and ignition device in traditional detonators, which improves the delay accuracy of detonators and the flexibility of detonation network differential design, which is conducive to the improvement of industry safety and digital supervision. In recent years, under the vigorous promotion of industry authorities, electronic detonators will become the development focus of the detonating equipment industry. [0003] As one of the important indicators of the dynamic quality characteristics of electronic detonators, the reliabi...

Claims

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Application Information

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IPC IPC(8): G06F30/20F42C21/00G06F119/02
CPCG06F30/20F42C21/00G06F2119/02
Inventor 冷振东周桂松郝亚飞刘庆谭翠平涂书芳
Owner CHINA GEZHOUBA GRP YIPULI CO LTD
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