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Horizontal pneumatic optical effect simulation device

A technology of aero-optics and simulation devices, applied in the field of aero-optics, can solve problems that are not directly simulated, achieve uniform airflow, improve simulation effects, and facilitate miniaturization

Active Publication Date: 2017-08-18
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, many aero-optical effect simulators are optical simulators, such as the invention patent with application number 201410456264.8 "Aero-optical effect simulator based on distorted images", and algorithm simulation, such as the invention patent with application number 201310193486.0 "A Simulator Methods and systems for aero-optical effects", these simulation devices or methods do not directly generate the air flow that produces aero-optical effects, so they belong to indirect simulations, not direct simulations, so there is still a difference from the actual aero-optical effects

Method used

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  • Horizontal pneumatic optical effect simulation device

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specific Embodiment 1

[0030] The horizontal aero-optical effect simulator of this embodiment has a schematic structural diagram as shown in figure 1 shown. The horizontal aero-optical effect simulation device includes a black body 1 and a tank body 2 arranged in sequence horizontally, the opening of the black body 1 is opposite to the opening of the tank body 2, and the black body 1 and the tank body 2 are connected through a connecting structure 3;

[0031] The black body 1 includes a ceramic layer 11, an intermediate layer 12, a cooling layer 13 and an outer shell 14 from the inside to the outside; the middle layer 12 is provided with a resistance wire, and the inner wall is provided with a temperature sensor, and the cooling layer 13 is filled with water. ; The schematic diagram of the structure of Heibody 1 is as follows: figure 2 shown;

[0032] The top of the tank body 2 is provided with an opening, and a cover 5 is provided on the opening;

[0033] A first air pump 15 is also arranged in...

specific Embodiment 2

[0037] The horizontal aero-optical effect simulation device of this embodiment is further defined on the basis of the specific embodiment 1 to include a water tank 6 and a water pump 7. The top and bottom of the cooling layer 13 each have an outlet, and the water pump 7 pumps the water tank 6 The water pumped into the outlet at the bottom of the cooling layer 13, and the water flows back to the water tank from the outlet at the top of the cooling layer 13, such as image 3 shown.

[0038] This structural design, utilizing the slow thermal conductivity of water, not only realizes the heat preservation of the ceramic layer 11 and the middle layer 12, ensures the stability of the aero-optical effect simulated by the aero-optical effect simulation device, but also realizes the cooling of the outer shell 14, Ensure experimental safety.

specific Embodiment 3

[0040] The horizontal aero-optical effect simulation device of this embodiment, on the basis of the specific embodiment 1, further defines that the cover 5 is a furnace ring structure, including a plurality of annular rings with different diameters, nested in sequence, and with a stepped cross-section. Such as Figure 4 as shown, Figure 4 Shown is a schematic diagram of the superposition of three annular rings and the structure of the furnace ring after the superposition.

[0041] This structural design can adjust the opening size of the cover 5 by adjusting the number of annular rings, and then change the simulation effect of the aero-optical effect without changing other structures, parameters and technical indicators, thereby increasing the aero-optical effect of the present invention. The simulation range of the effect simulator.

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Abstract

The invention discloses a horizontal pneumatic optical effect simulation device, which belongs to the technical field of pneumatic optics. The pneumatic optical effect simulation device comprises a black body and a tank body arranged horizontally sequentially, wherein the opening of the black body is opposite to that of the tank body; the black body and the tank body are connected through a connection structure; the internal part of the black body is also provided with a first air pump and a first air way; the first air way extends deeply to the connection structure; the tank body is internally provided with a second air pump and a second air way; the second air way extends deeply to the connection structure; and in the connection structure, the second air way is located above the first air way, and an open hole in the second air way and an open hole in the first air way are opposite vertically. According to the pneumatic optical effect simulation device of the invention, the characteristic of using hot and cold air to form strong convection is used to directly generate an air flow for generating pneumatic optical effects, and the purpose of direct pneumatic optical effect simulation is realized.

Description

technical field [0001] A horizontal aero-optical effect simulator belongs to the technical field of aero-optics. Background technique [0002] When the aircraft flies in the atmosphere at high speed, due to the real gas effect between the optical hood and the free flow, the separation of the boundary layer induced by the shock wave, the mutual interference between the inviscid flow and the boundary layer, etc., resulting in changes in airflow density, temperature, etc. The complex flow field caused by changes in temperature, composition changes, and ionization of gas molecules will cause heat, thermal radiation, and image transmission interference to the infrared imaging detection system, causing target deviation, shaking, and blurring. This effect is called the aero-optical effect. [0003] The aero-optical effect has a negative impact on the infrared imaging terminal guidance, which reduces the ability of the seeker to detect, track and identify the target, and then affect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/22G09B23/12
CPCG09B23/12G09B23/22Y02T90/00
Inventor 赵烟桥于博洋
Owner HARBIN UNIV OF SCI & TECH
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