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A wave absorbing device for underwater test of solid rocket motor

A technology of solid rockets and wave-absorbing devices, which is applied in the direction of engine testing, measuring devices, and testing of machine/structural components. It can solve problems such as the influence of the flow field of the water environment in the cylinder and the impact of aggravated performance test accuracy.

Active Publication Date: 2020-09-01
BEIJING AVIATION FEIFANG MACHINERY EQUIP FACTORY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limited size and space of the pressure water cylinder, the depth of the water environment in the cylinder is small, and the high-temperature gas generated during the test run of the solid rocket motor is ejected from the nozzle at high speed, which has a great impact on the flow field of the water environment in the cylinder
Since water is an incompressible fluid, the high-temperature gas jet spreads rapidly in a limited space and forms a reflection after impacting the cylinder wall, which further intensifies the impact on the engine test environment and performance test accuracy

Method used

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  • A wave absorbing device for underwater test of solid rocket motor
  • A wave absorbing device for underwater test of solid rocket motor

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Embodiment Construction

[0028] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0029] A specific wave breaking device for underwater testing of solid rocket motors is provided, the wave breaking device includes a pressure water tank, a test bench, a backflow baffle, a rectifying grid and a breakwater;

[0030] The test bench, the backflow baffle, the rectifying grid and the breakwater are all located in the inner cavity of the pressure water tank and arranged in sequence; the test bench is used to install the solid rocket motor;

[0031] The backflow baffle is symmetrically arranged on the inner wall of the pressure water cylinder, forming a channel between the test bench and the rectifying grid, and preventing the water flow from backflowing from both sides;

[0032] The rectifying grid has left and right diversion surfaces, diverting the water waves coming from the direction of the test bench to both sides;

[0033] The breakwater...

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Abstract

The invention relates to a wave-eliminating device for a solid rocket engine underwater test in order to reduce the influence of a fuel gas jet stream on an environmental flow field during a solid rocket engine underwater test in a restricted space, and belongs to the technical field of solid rocket engine underwater tests. The wave-eliminating device comprises a pressure water cylinder, a test rack, a backflow baffle, a rectifying grating and a wave eliminating dyke. The wave-eliminating device can reduce the influence of the underwater jet stream of the solid rocket engine on a commissioningenvironment and performance test accuracy to a negligible extent.

Description

technical field [0001] The invention relates to a wave elimination device for underwater testing of solid rocket motors, which is used for reducing the influence of gas jet flow on the environmental flow field during underwater testing of solid rocket motors in a confined space, and belongs to the technical field of underwater testing of solid rocket motors. Background technique [0002] Solid rocket motors can achieve high speed over short distances and work at great depths, making them effective underwater weapons. Solid rocket motors have the technical characteristics of simple structure, strong concealment, good maneuverability, and high reliability, and are often used as the primary power of submarine-launched missiles. Compared with solid rocket motors working on the ground, the working environment of solid rocket motors working underwater is more complicated, and the ignition and starting characteristics and working performance of the engines are significantly differe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M15/02
CPCG01M15/02
Inventor 高晓会
Owner BEIJING AVIATION FEIFANG MACHINERY EQUIP FACTORY