A model support device and method based on double tail support and tension line support
A technology of support device and tail support, applied in the field of six-dimensional force measurement of aircraft model space, can solve the problems of destroying the shape of the model, changing the model, affecting the test accuracy, etc. Size, the effect of improving measurement accuracy
Active Publication Date: 2019-09-27
DALIAN UNIV OF TECH
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Problems solved by technology
The tension-type measuring balance can reduce the influence of support interference, but the hanging point of the tension-line support on the model destroys the shape of the model, which will change the flow field near the model, and it is difficult to avoid the sensitive area of the detached vortex. Its stability is not high, and it is easy to swing during the test, which affects the test accuracy
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[0037] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings and technical solutions.
[0038] figure 1 , 2 Shown is a schematic diagram of the structure of the model support device based on double tail support and tension line support. Among them, the double-tail support system II is fixed on the vertical beam of the support frame I, and the four sets of tension support systems IV1-4 are evenly distributed on the longitudinal beams on both sides of the top of the support frame I. Line V is connected with double-tail support system II and tension line support system IV. Since the four groups of tensioning support systems have the same structure, one of them will be used to illustrate the specific implementation.
[0039] Such as figure 1 As shown, the four wire tension support systems IV1-4 are fixed on the longitudinal beams on both sides by bolts to realize the connection and adjustment ...
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The invention belongs to the technical field of sensors and measurement and control, and relates to a model support device and method based on double-tail support and bracing wire support, for aircraft model space six-dimensional force measurement. The model support device based on double-tail support and bracing wire support includes a support frame, a double-tail support system and bracing wiresupport systems, wherein the support frame is a cube structure which is formed by a plurality of vertical crossbeams and vertical beams; the quantity of the bracing wire support systems is 4, and thebracing wire support systems are uniformly distributed between every two adjacent vertical crossbeams at the top of the support frame; each of the bottoms of the four bracing wire support systems is connected with one bracing wire, and the other end of the bracing wire is connected with the back of the aircraft model; the double-tail support system is arranged on the vertical beams of the supportframe; two horizontal rigid rods are arranged on the double-tail support system; and the other end of each horizontal rigid rod is fixedly connected with the tail of the aircraft model, thus realizingtail double-rod support of the aircraft model. The model support device based on double-tail support and bracing wire support has the advantages of low bracing wire support pneumatic interference andhigh hard support system stability, and can effectively solve the problem that a narrow and long large-mass aircraft model encounters large vibration and instability in a single tail support mode.
Description
technical field [0001] The invention belongs to the technical field of sensors and measurement and control, and relates to a model support device and method based on double tail support and tension line support, which are used for six-dimensional force measurement in aircraft model space. Background technique [0002] The wind tunnel is a large-scale equipment developed according to the principle of aerodynamics to test the aircraft model. The wind tunnel test refers to placing the aircraft model or some parts in the wind tunnel, and simulating various flight conditions by applying artificial airflow, so as to test the aerodynamic characteristics of the model in this environment. The measurement and research of mechanical properties has important guiding significance for the material selection, part design, and structural design of aircraft. When conducting wind tunnel tests, it is necessary to use a model support system to support the tested model in the wind tunnel channe...
Claims
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IPC IPC(8): G01M9/04
Inventor 任宗金任明帅徐田国张军贾振元孙聪化梅刘帅
Owner DALIAN UNIV OF TECH