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Method for evaluating a large electromagnetic ejection device based on efficiency

A technology of electromagnetic ejection and evaluation method, which is applied in complex mathematical operations, forecasting, resources and other directions, can solve the problems of undiscussed investment efficiency of design plans, many evaluation indicators, complex models, etc., and achieves effective and feasible methods, short calculation time, and accuracy. high rate effect

Pending Publication Date: 2021-06-04
ROCKET FORCE UNIV OF ENG
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Problems solved by technology

However, the system has many evaluation indicators, the model is relatively complex, and the calculation process is too complicated to quickly calculate the effectiveness value of the design scheme, and the investment efficiency of the design scheme has not been discussed.

Method used

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  • Method for evaluating a large electromagnetic ejection device based on efficiency
  • Method for evaluating a large electromagnetic ejection device based on efficiency
  • Method for evaluating a large electromagnetic ejection device based on efficiency

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Experimental program
Comparison scheme
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Embodiment

[0154] 1. Performance calculation based on GRA-PCA-LSSVM

[0155] According to the content disclosed in the prior art, the effectiveness evaluation index of LEMED can be obtained as shown in Table 1. And the sample data of 64 sets of traditional launch methods are shown in Table 2, each set of data includes 18 evaluation indicators and performance values.

[0156] Table 1 LEMED performance evaluation index table

[0157]

[0158] Table 2 LEMED performance and index data table

[0159]

[0160]

[0161] Due to the large number of indicators, the evaluation methods in the prior art are complicated and need to be simplified. First, as shown in Table 3, the sample data is statistically described, and the index correlation strength map is made, as shown in figure 2 shown. figure 2 The abscissa and ordinate of are indicative numbers, the color indicates the correlation intensity, and the right side is the intensity and color contrast scale. From figure 2 It can be see...

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Abstract

The invention discloses a method for evaluating a large electromagnetic ejection device based on efficiency, and aims to solve the problems that an existing large steam ejection device for aerospace is high in infrared radiation, poor in system continuous working capacity, serious in ejection device ablation, and causes environmental pollution and the like, In combination with the current research on large electromagnetic ejection device (LEMED), which mainly focuses on the situation of key technical points, as well as the deficiencies in the previous research on LEMED,an efficiency prediction model based on GRA-PCA-LSSVM is established, and system investment efficiency based on DEA is discussed. Experimental results prove that the established model is reasonable and effective, has superiority, and provides reference for further improvement and development of LEMED.

Description

technical field [0001] The invention belongs to the technical field of evaluation of large-scale electromagnetic ejection devices, and in particular relates to an evaluation method of large-scale electromagnetic ejection devices based on performance. Background technique [0002] Large electromagnetic ejection device (Large electromagnetic ejection device, LEMED) is currently a research hotspot because it can effectively solve the problems of strong infrared radiation, poor continuous working ability of the system, serious ablation of the ejection device, and environmental pollution in the existing aerospace ejection methods. . [0003] At present, the research on LEMED mainly focuses on pulse energy storage power supply, pulse power supply discharge, motor control and other technical aspects, and there are few studies on the evaluation of the whole system. In the prior art, the effectiveness evaluation model of the electromagnetic ejection device is studied, and a new syst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06F17/18G06Q10/04G06K9/62
CPCG06Q10/0639G06F17/18G06Q10/04G06F18/2135
Inventor 陈桂明李乔扬王炜高成强张毅
Owner ROCKET FORCE UNIV OF ENG