Virtual evaluation method for secondary smoke characteristic of solid propellant based on plume field

A solid propellant and evaluation method technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of consuming a lot of manpower and material resources, prolonging the development cycle, etc.

Active Publication Date: 2013-07-03
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, in the process of developing and evaluating low-signature propellants, it takes a lot of manpower and material resources to solve the problem, and the development cycle is greatly extended,

Method used

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  • Virtual evaluation method for secondary smoke characteristic of solid propellant based on plume field
  • Virtual evaluation method for secondary smoke characteristic of solid propellant based on plume field
  • Virtual evaluation method for secondary smoke characteristic of solid propellant based on plume field

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Experimental program
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Embodiment Construction

[0041] like figure 1 A plume field-based virtual evaluation method for the secondary smoke characteristics of solid propellants is shown, including the following steps:

[0042] Step 1. Initial parameter setting and storage:

[0043] First, through the parameter input unit connected to the data processor, input the component quantity N used to prepare the evaluated solid propellant and the component information of each component, and store the input information synchronously to the data processing unit. In the data storage unit connected to the device; wherein, the component information of each component includes chemical formula and mass ratio m i , i=1, 2, ..., N, N is the number of components used to prepare the evaluated solid propellant; where, 0i <100, N≥2;

[0044] After that, select all the combustion products produced after the combustion of the evaluated solid propellant from the pre-established combustion product database through the parameter input unit; the comb...

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Abstract

The invention discloses a virtual evaluation method for secondary smoke characteristic of a solid propellant based on a plume field. The method disclosed by the invention comprises the following steps of: I, setting and storing an initial parameter; II, calculating an energy characteristic parameter; III, calculating an engine plume field; and IV, calculating a secondary smoke characteristic value, invoking a pre-established secondary smoke relative humidity calculation model via a data processor, and calculating and acquiring secondary smoke relative humidity RHamb at each position on a spraying tube axis in the engine plume field after combusting the evaluated solid propellant by combining a calculation result of the engine plume field acquired in the step III. The method disclosed by the invention is simple in steps, reasonable in design, convenient to realize and good in using effect and can effectively overcome the defects of large investment of manpower and material resources, long period, great test amount and the like when the smoke signal performance of the solid propellant in the prior art is evaluated.

Description

technical field [0001] The invention belongs to the technical field of evaluation of smoke characteristics of solid propellants, in particular to a method for virtual evaluation of secondary smoke characteristics of solid propellants based on a plume field. Background technique [0002] With the development of mechanization and information technology, more and more modern weapon systems adopt automatic tracking, control and guidance methods such as radar and photoelectricity. Combat effectiveness of projectile weapon systems. But at the same time, the harmfulness of smoke and flames during the launching and carrying of missile weapons is becoming increasingly apparent, which has a great impact on the informatization, intelligence, and stealth performance of the weapon system, and has serious consequences for the rapid, precise strike, and stealth functions of the weapon system. It has caused serious adverse effects, and has even become the main technical bottleneck restrict...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 李猛赵凤起张晓宏徐司雨罗阳郝海霞
Owner XIAN MODERN CHEM RES INST
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