Loading and unloading system for dynamic characteristic measurement of test model in wind tunnel
A technique for testing model, dynamic characteristics
Active Publication Date: 2022-07-29
中国空气动力研究与发展中心超高速空气动力研究所
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At present, there is no mature, standardized and commercialized equipment that can meet the requirements
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[0061] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.
[0062] see figure 1 and figure 2 As shown, the loading and unloading system for measuring the dynamic characteristics of the test model in the wind tunnel provided by the embodiment of the present invention includes a loading mechanism 1 and a model connecting mechanism 2 .
[0063] The loading mechanism 1 includes a support base 12 and t...
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The invention relates to the technical field of wind tunnels, in particular to a loading and unloading system for dynamic characteristic measurement of a test model in a wind tunnel. The system comprises a supporting base, three moving mechanisms arranged in the Z direction, the X direction and the Y direction of a space rectangular coordinate system respectively and a model connecting mechanism arranged in any one of the Z direction, the X direction and the Y direction of the space rectangular coordinate system and fixedly installed on the supporting base, and the moving mechanism in the X direction is in sliding connection with the moving mechanism in the Z direction. According to the loading and unloading system, through movement of the moving mechanisms, position adjustment is achieved, the loading and unloading system can be applied to test models of different sizes and different angles, external disturbance force is small in the loading process, it can be guaranteed that stress of the test models is free of inclined included angles, and in the whole test process, the loading and unloading efficiency is greatly improved. The tensile force applied to the test model can be measured by the force measuring sensor from existence to absence, and the test model can be quickly released to meet test requirements.
Description
technical field [0001] The invention relates to the technical field of wind tunnels, in particular to a loading and unloading system for measuring the dynamic characteristics of a test model in a wind tunnel. Background technique [0002] The wind tunnel dynamic test needs to study the aerodynamic load, deformation, flow field and other characteristics of the aircraft model in the process of dynamic motion. In some wind tunnel dynamic tests, it is necessary to carry out relevant research and measurement under the vibration state of the test model, and the vibration of the test model needs to be caused by external force, and the magnitude of the applied external tension needs to be measured accurately, and the applied external force needs to be cut off during the vibration process. The influence of the external tensile force that caused the vibration of the test model on the test model, and the faster the cutting speed, the smaller the impact on the vibration process of the t...
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IPC IPC(8): G01M9/00F16M11/04F16M11/18
CPCG01M9/00F16M11/045F16M11/046F16M11/048F16M11/18
Inventor 张峻宾舒海峰张德炜许晓斌谢飞蒋万秋陈映东
Owner 中国空气动力研究与发展中心超高速空气动力研究所