Method of forming and detecting supercooled water droplet in ground ice-formation condition simulation system, and target simulation device
A technology for icing conditions and simulation systems, applied to ground installations, transportation and packaging, aircraft parts, etc., can solve problems such as the inability to produce supercooled water droplets that meet the test requirements, and achieve the effect of meeting the test requirements
Active Publication Date: 2013-12-11
COMAC +1
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However, the "reading the icing parameters in the test environment at any time" in this article does not guarantee that the water mist sprayed by the spray device can produce supercooled water droplets that meet the test requirements at the target position
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[0040] like figure 1 As shown, in a test environment under simulated icing conditions on the ground, a spray device 10 for forming water mist is provided. The spray device 10 includes a plurality of spray rakes 101. water mist13. At the place where the test piece (the equipment that is tested in the test environment, such as an aircraft engine) is placed, or near, a ground target simulation device 20 is set, and the ground target simulation device 20 includes a plurality of simulation targets. In this embodiment Including three simulation targets 20a, 20b, 20c.
[0041] like figure 1 As shown, the direction of the arrow is the direction A (that is, the longitudinal direction) of the sprayed spray airflow of the spray rake 101. The left side of the figure is the spray rake 101 that generates water mist, and the right side is each target plate 20a, 20b, 20c of the ground target simulation device 20, In order to make the icing state on the target plate 20a, 20b, and 20c clearl...
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The invention method of forming and detecting a supercooled water droplet used in a ground ice-formation condition simulation system, and the supercooled water droplet is formed by water mist sprayed by an atomizing device. The method comprises the following steps of initially determining water supply temperature and gas supply temperature of the atomizing device, and starting the atomizing device so as to spray the water mist; after the atomizing device works stably, placing a ground target simulation device at a test target position and / or a place close to the test target position, wherein the ground target simulation device comprises at least one simulation target, and the simulation target comprises a test surface facing to the water mist; adjusting the gas supply temperature and / or the water supply temperature according to a freezing state of the water mist deposited the test surface of the ground target simulation target on the test target position and / or the place close to the test target position, so as to enable the water droplet of the water mist at the target simulation target to just reach the supercooled water droplet state of the test requirements. The invention further provides a test method of the supercooled water droplet used in the method of forming the supercooled water droplet, and the ground target simulation device used in the test method.
Description
technical field [0001] The invention relates to a supercooled water droplet formation and inspection technology for ground icing condition simulation equipment, in particular, to an atomization nozzle with adjustable water supply temperature and air supply temperature to form supercooled water droplets under a low ambient temperature on the ground To simulate the meteorological conditions of ground icing under certain cold weather ambient temperature conditions. Background technique [0002] The whole process of aircraft design and development generally includes five stages: pre-development, engineering development, detailed design, comprehensive trial production, and airworthiness certification. After the airworthiness certificate is obtained, it means that the safety design of the aircraft is approved, and the "birth certificate" is obtained. After obtaining this certificate, the aircraft can enter the substantive stage of mass production. [0003] The 25th (CCAR-25) air...
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Inventor 霍西恒李志茂王大伟李革萍
Owner COMAC