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Aircraft test rain simulation device and simulation method

A simulation device and aircraft technology, applied in the field of aircraft test rain simulation device, can solve the problem that the rain test cannot be fully applied, and achieve the effects of preventing falling, reducing reliability and facilitating installation.

Active Publication Date: 2022-01-21
CHINA AIRPLANT STRENGTH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through the above analysis, the design of the existing rain simulation device cannot be fully applied to the rain test in a large-scale comprehensive climate and environment laboratory. Therefore, it is necessary to design a modular rain simulation device that not only meets the parameters of the rain test in the climate and environment laboratory, but also And it can achieve a wide range of rainfall intensities, and it is easy to install and disassemble

Method used

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  • Aircraft test rain simulation device and simulation method
  • Aircraft test rain simulation device and simulation method
  • Aircraft test rain simulation device and simulation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] like image 3 As shown, an aircraft test rain simulation device includes a modular spray rack 1, nine water supply pipelines 2 arranged on the modular sprinkler rack 1, and four pipe clamps 3 for fixing the water supply pipeline 2 , the nozzle 4 provided on the water supply pipeline 2, the balance lifting point 5 for hoisting the modular spray rack 1;

[0054] The modular spray rack 1 is composed of three modular frames 10 that are spliced ​​with each other. Each modular frame 10 is spliced ​​by two criss-crossing aluminum alloy beams 11. The side walls of each modular frame 10 are Two sets of connecting hooks 100 and two sets of connecting rings 101 are respectively arranged in relative distribution, and a storage seat 102 is respectively provided at the four corners of the module frame 10, and the upper end of the storage seat 102 is provided with a snap-in notch 103,

[0055] The side wall of module frame one 10 is provided with a gap 104 corresponding to two groups...

Embodiment 2

[0063] This embodiment is basically the same as Embodiment 1, the difference is:

[0064] like Figure 4 , 5 As shown, the modular spray rack 1 is replaced by a foldable spray rack, and the foldable spray rack includes a module frame two 12, two foldable frames 13 arranged on the left and right sides of the two module frame 12, and the foldable frame 13 is composed of a plurality of splicing sub-boards 130, two adjacent splicing sub-boards 130 are connected by hinges 131, the four corners of the module frame 12 are provided with storage seats 2 120, and the module frame 2 12 is made of a plurality of criss-cross aluminum Beam 2 14 made of alloy material is spliced, each splicing sub-board 130 is provided with beam 3 132, the water supply pipeline 2 is connected with beam 2 14 and beam 3 132 through pipe clamp 3, and the balance lifting point 5 is set on the On beam two 14 and beam three 132;

[0065] Both sides of the module frame two 12 are provided with snap rings 121, an...

Embodiment 3

[0070] What present embodiment records is the simulation method of the aircraft test rain simulation device of embodiment 1, comprises the following steps:

[0071] S1. Comprehensively consider the requirements of rainfall intensity and rainfall uniformity, select nozzles 4, calculate the number of nozzles 4, and arrange the nozzles 4, including:

[0072] S1-1, nozzle 4 selection:

[0073] The nozzle 4 is a solid nozzle, and the diameter of the water droplets sprayed by the nozzle 4 is required to be in the range of 0.5mm to 4.5mm. According to the requirements of the diameter of the water droplets, select the corresponding type of nozzle 4 or use several types of nozzles 4 for combination;

[0074] S1-2, the calculation of the number of nozzles 4, the calculation formula is as follows:

[0075]

[0076] in, is the total number of nozzles 4, is the rainfall intensity in m / h, is the rainfall area, the unit is m 2 , is the flow rate of a single nozzle 4, in m 3 / h;...

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Abstract

The invention discloses an airplane test rain simulation device and simulation method, and belongs to the technical field of airplane testing, the airplane test rain simulation device comprises a modular spraying frame, a plurality of water supply pipelines arranged on the modular spraying frame, a plurality of pipe clamps used for fixing the water supply pipelines, nozzles arranged on the water supply pipelines, and a balance lifting point used for lifting the modular spraying frame; in order to meet the requirements of large spraying area and convenience in disassembly and assembly in a rainfall test of an aircraft climate environment laboratory, the rain simulation device is subjected to two different modular designs, and the modular designs have the advantages that the rainfall simulation device can be spliced and combined according to the structural shape of a test object and is convenient to assemble, disassemble and transport; according to the invention, four different models of nozzles are adopted to form seven different combination forms, so that wide-range continuous rainfall intensity adjustment can be realized on the premise that the nozzles are not replaced, and the interruption of a rainfall test is avoided.

Description

technical field [0001] The invention relates to the technical field of aircraft testing, in particular to an aircraft test rain simulation device and a simulation method. Background technique [0002] The rain test of aviation aircraft usually uses a climate environment laboratory that can simulate various climate environments to simulate the rain environment. The climate environment laboratory means that various climate environments can be simulated in the laboratory, and the rain environment is a simulated environment. one. [0003] The rain simulation device cannot be designed in a fixed form in the laboratory, otherwise the device will also have to withstand other harsh climatic environments when the rain test is not performed, the technical difficulty will increase, and the development cost will increase. Therefore, the rain simulation device should be designed It is portable, easy to disassemble and transport. The object of the rain test in the climate and environmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/02G01M99/00B64F5/60
CPCG01M3/02G01M99/005B64F5/60
Inventor 吴敬涛王彬文成竹王红斌任战鹏
Owner CHINA AIRPLANT STRENGTH RES INST
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