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Overall parameter design method, device and equipment of throat plug type variable thrust engine

A technology of overall parameters and design methods, applied in design optimization/simulation, electrical digital data processing, special data processing applications, etc., can solve problems such as low design efficiency

Active Publication Date: 2021-04-27
NAT UNIV OF DEFENSE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the process of realizing the present invention, the inventor found that in the aforementioned traditional overall scheme design method, there is still the technical problem of low design efficiency

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  • Overall parameter design method, device and equipment of throat plug type variable thrust engine
  • Overall parameter design method, device and equipment of throat plug type variable thrust engine
  • Overall parameter design method, device and equipment of throat plug type variable thrust engine

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Embodiment Construction

[0029] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application. It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to another element and integrated with it, or there may be an intermediate element at the same time, that is, it may also be indirectly connected to another element .

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the pur...

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Abstract

This application relates to the design method, device and equipment of the overall parameters of the throat-bolt type variable thrust engine. The method includes: according to the requirements of the overall design indicators, establishing the overall parameter optimization calculation model of the throat plug type variable thrust engine; using the optimized Latin hypercube experimental design method, Generate initial sample points in the overall parameter optimization calculation model; input the initial sample points into the engine performance simulation model to obtain the design constraints and objective functions corresponding to the initial sample points, and use the radial basis function method to construct the proxy of the objective functions and constraints model; using the adaptive particle swarm algorithm, based on the established proxy model to search and solve the optimization problem, and find a point with better performance than the current optimal solution, stop the search and output it as the current sampling point; use the current sampling point as the new The sampling point input of the engine performance simulation model is used to calculate the real output, and the overall engine parameters are output according to the preset convergence conditions. Improve design efficiency.

Description

technical field [0001] The present application relates to the technical field of aircraft engine design, in particular to a method, device and equipment for overall parameter design of a throat plug type variable thrust engine. Background technique [0002] Solid rocket motor is one of the power systems widely used in space vehicles such as missiles and rockets. Throat variable thrust solid motor has a wide application prospect because it can flexibly adjust the thrust to meet different work requirements. The overall scheme design is one of the core and most difficult technologies in the design of the throat plug type variable thrust solid engine. Its main task is to adjust the design parameters under the constraints of stable charge combustion and thrust adjustment capabilities so that the final designed engine The average charge-to-mass ratio is the largest. [0003] At present, the commonly used design methods for the overall scheme of the throat plug type variable thrus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/17G06F30/25G06F30/27G06F119/14
CPCG06F30/17G06F30/25G06F30/27G06F2119/14
Inventor 武泽平杨家伟王鹏宇张为华王东辉张锡文谦江振宇
Owner NAT UNIV OF DEFENSE TECH