Rocket engine valve sealing performance index calculation method and device and electronic equipment

A rocket engine and valve sealing technology, applied in the aerospace field, can solve the problems of excessive sealing performance redundancy, large error and high cost

Pending Publication Date: 2022-06-07
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the error of this method of estimating using empirical formulas and then performing test checks is too large, generally because there are too many redundant seals or insufficient seals.
The reason is that empirical formulas are often based on certain assum...

Method used

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  • Rocket engine valve sealing performance index calculation method and device and electronic equipment
  • Rocket engine valve sealing performance index calculation method and device and electronic equipment
  • Rocket engine valve sealing performance index calculation method and device and electronic equipment

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Embodiment Construction

[0065] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. The components of the embodiments of the present application generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

[0066] Thus, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application as claimed, but is merely representative of selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained...

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Abstract

The invention provides a rocket engine valve sealing performance index calculation method and device and electronic equipment, and relates to the technical field of spaceflight, and the method specifically comprises the steps: carrying out the structure preprocessing of a geometric model of a rocket engine valve; performing flow heat transfer simulation on the preprocessed geometric model of the rocket engine valve to obtain pressure distribution of a valve runner and temperature distribution of a valve solid domain when a propellant flows through the interior of the rocket engine valve; performing fluid-solid-thermal coupling finite element analysis on the preprocessed geometric model of the rocket engine valve, and obtaining the sealing specific pressure when the rocket engine valve is sealed based on the pressure distribution of a valve runner and the temperature distribution of a valve solid domain; and calculating the leakage rate of the rocket engine valve based on the sealing specific pressure. The leakage rate is calculated based on numerical simulation and a theoretical model, the leakage rate with high precision can be obtained, and the design cost is reduced.

Description

technical field [0001] The present application relates to the field of aerospace technology, and in particular to a method, device and electronic equipment for calculating the performance index of rocket engine valve sealing. Background technique [0002] In the existing rocket engine valve design, the design of valve sealing performance is generally estimated through empirical formulas in the design stage, and the sealing performance is tested through tests. , and iterate continuously until the requirements are met. [0003] At present, this method of using empirical formulas to estimate and then carry out experimental verification has too large errors, generally due to excessive sealing performance redundancy or insufficient sealing. The reason is that the empirical formulas are often based on certain assumptions, which will limit the use of the empirical formulas, and the applicability of the empirical formulas is not strong for different objects. On the other hand, usi...

Claims

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Application Information

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IPC IPC(8): G06F30/23G06F30/15G06F30/28G06F113/08G06F119/08G06F119/14
CPCG06F30/23G06F30/15G06F30/28G06F2119/08G06F2119/14G06F2113/08Y02T90/00
Inventor 金平尚现伟蔡国飙李睿智
Owner BEIHANG UNIV
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