Regular wave fixed-point throwing test device and method for helicopter overwater forced landing model
A technology of helicopter model and test device, which is applied in the direction of measuring device, aircraft component test, fluid dynamics test, etc., can solve unfavorable test phenomenon analysis and test data processing, low reproducibility of the same drop point test, and waste of manpower Materials and other issues
Active Publication Date: 2021-03-16
CHINA SPECIAL TYPE FLIER RES INST
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Problems solved by technology
[0003]The existing helicopter wave launch test mainly adopts the test personnel to observe the launch, and the landing point of the model on the wave is very random, which often requires a lot of repeated tests Work, a waste of manpower and material resources, and the reproducibility of the same drop point test is not high, which is not conducive to the analysis of test phenomena and test data processing in the later stage
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[0052] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0053] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplification of the description, rather than indicating or implying that the referred device or element must have a specific orientation. construction and operation, and therefore cannot be construed as limiting the prese...
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Abstract
The invention relates to the technical field of helicopter model overwater forced landing verification tests, and particularly relates to a regular wave fixed-point throwing test device and method fora helicopter overwater forced landing model. The device is used for conducting a test in a water pool provided with a wave maker, and comprises a helicopter model (1), a wave crest probe assembly (2), a signal line (3), a delay throwing controller (4), a control panel (5), a control line (6), an electromagnetic release (7), a model attitude adjusting device (8), a circular pipe fitting (9), a trailer (10), a side bridge (11), an airborne data collector (12) and an airborne sensor (13). In order to overcome the defects of an existing test device, the wave crest probe assembly is additionally arranged and used for detecting a first regular wave crest; the delay release controller is additionally arranged for modifying different release time after the model encounters the first wave crest torealize encountering of different regular wave position points after the model is released; and the one-time success rate of a throwing test is improved, and meanwhile, the reproducibility of a modeltest phenomenon can also be improved.
Description
technical field [0001] The invention belongs to the technical field of helicopter ditching verification tests, and in particular relates to a helicopter ditching model regular wave fixed-point dropping test device and method. Background technique [0002] To carry out the helicopter ditching verification test, the regular wave drop test is an indispensable link. The position of the water landing point on the wave after the helicopter ditching model is launched has a great influence on the model test results. For a regular wave with the same wavelength and wave height, the model falls on different positions such as the crest, trough, frontal wave surface, and back wave surface. The motion response and impact load are different. In order to obtain severe working conditions, it is required to obtain test data of the model at different wave points. [0003] However, the existing helicopter wave launch test mainly adopts the test personnel to observe and launch, and the drop poi...
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Login to View More IPC IPC(8): G01M10/00B64F5/60
CPCG01M10/00B64F5/60
Inventor 许靖锋焦俊王冠韩小红魏飞刘晓峰
Owner CHINA SPECIAL TYPE FLIER RES INST