A high-speed water slamming test device
A test device and slamming technology, which is applied in the field of high-speed water slamming test device, can solve problems such as poor operability, poor system stability, and complex structure, and achieve rich experimental conditions, easy operation, and strong system stability. Effect
Active Publication Date: 2019-08-06
HARBIN ENG UNIV
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Problems solved by technology
However, the structure is too complex, the system stability is poor, and the operability is not strong
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[0019] The present invention will be further described below in conjunction with accompanying drawing:
[0020] Such as figure 1 , a high-speed water entry slamming test device, including a water tank 1, a base 2, a stepping motor 3, a cantilever 4, a water entry object 5, a water entry connection structure 6, a pin 7, a nut 8 and a dial 9. The base 2 is fixed on one end of the upper side of the frame of the water tank 1; the stepping motor 3 is fixed on the base 2; figure 2 , the other end of the cantilever 4 and the dial 9 are coaxially connected to the water-inlet connection structure 6 through the pin 7 and the nut 8, and the water-inlet connection structure 6 is connected to the water-inlet object 5 below.
[0021] Such as Figure 5 , The base 2 is made up of a base brace 2-1, a vertical plate 2-2, a horizontal base plate 2-3, a base fixing hole 2-4, and a motor mounting hole 2-5. The vertical plate 2-2 is perpendicular to the horizontal base plate 2-3, the base fixin...
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The invention belongs to the field of hydrodynamics and particularly relates to a high-speed water entry slamming test device. The objective of the invention is to solve the problem of failure to simultaneously control speed and the water entry angle in the prior art. The test device comprises a water tank, a substrate, a stepping motor, a cantilever, a water entry object, a water entry connectionstructure, a pin, a nut and a dial. The substrate is fixed on one end of the upper side of the framework of the water groove. The stepping motor is fixed on the substrate. One end of the cantilever is installed on a rotor of the stepping motor and is suspended above the other end of the water tank. The other end of the cantilever and the dial are coaxially connected with the water entry connection structure through the pin and the nut. The lower part of the water entry connection structure is connected with the water entry object. According to the invention, the test device is simple in structure, high in system stability and easy to operate; speed is controlled and high-speed water entry is achieved; water entry angle can be also controlled; experiment conditions are enriched; experimentcost is reduced; convenience is provided for scientific experiments; and great functions can be achieved in research of the water entry slamming problem.
Description
technical field [0001] The invention belongs to the field of fluid mechanics, in particular to a high-speed water entry slamming test device. Background technique [0002] The water landing of seaplanes and spaceships, the water impact of air-dropped torpedoes, the slamming of ships in wind and waves, and the throwing of lifeboats at sea will arouse the movement of the surrounding fluid medium; in turn, the fluid medium exerts pressure on the structure Various reaction forces. Especially in the initial transient process of water impact, it will suffer a huge impact load. This involves the structural man-water impact dynamics. The research on the human-water problem plays an important role in the design of the strength of the water-entry structure: for example, in the process of air-dropped or rocket-assisted underwater weapons invading from the air medium to the fluid medium, they are faced with structural damage after impact, device failure, sudden jump, and ballistic los...
Claims
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IPC IPC(8): G01M10/00
Inventor 郑兴郝红彬张宁波马庆位廖康平
Owner HARBIN ENG UNIV