Tennis racket dynamic testing device and method
A technology of dynamic testing and tennis rackets, which is applied in the direction of measuring devices, impact testing, and testing of machine/structural parts, etc., which can solve the problems of simplification of experimental design devices, bulky devices, and no testing devices, etc., and achieve compact device structure design, The effect of ensuring accuracy and ensuring stability
Active Publication Date: 2017-12-22
SOUTHEAST UNIV
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Problems solved by technology
[0003] At present, there are few devices in the market that integrate tennis ball launch and related tests. Most of them are single devices, such as tennis ball launchers designed only for serving, which do not have some follow-up test devices, which makes some data acquisition for follow-up research become difficult
Other devices only have test parts and cannot really simulate the process of launching a tennis ball
There are still some design deficiencies in the existing tennis research devices: most of the existing designed models and research are static rather than dynamic; the experimental design device is too simple to meet the design requirements; the device is too heavy and inconvenient to move
Method used
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Embodiment
[0030] The testing device of this embodiment is as Figure 1 to Figure 5 As shown, it mainly includes two parts: the simulated tennis launch part and the related test part. Launcher integral machine platform 1, control box 2, gun barrel 3, flat foot 5, some air pipes etc. have formed tennis launcher. Utilize electromagnetic valve, pressure gauge, some tracheae, cylinder 4, and touch screen etc., form launch gun control box 2, to control the goal of tennis, prepare and launch etc. Finally, according to the size of each part, cooperate with relevant nuts and bolts to assemble each part to form a complete launcher. By adjusting the flat feet 5, the launch angle of the barrel 3 can be adjusted to meet different test requirements. By adjusting the size of the pressure gauge data, different pressures can be generated to achieve different firing speeds. Connect the air source and power supply, put the tennis ball on the launch port, press the switch, and the tennis ball can automat...
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The invention discloses a tennis racket dynamic testing device and a method. The tennis racket dynamic testing device comprises a simulation tennis ball shooting part and a related test part; the simulation tennis ball shooting gun part comprises a shooting gun integral machine stand, a control box, a gun barrel, and flat feet; the control cabinet is internally provided with a solenoid valve, a pressure gauge, an air pipe and an air cylinder; the air cylinder is connected to the gun barrel through the air pipe; the test part comprises a speed testing door, a tennis ball fixing structure, a laser displacement sensor and a high speed camera which are successively installed along the tennis ball moving track, wherein the laser displacement sensor is used for testing the displacement variable quantity when the tennis ball hits the surface of the tennis racket; and the high speed camera is used for recording the changing process of the racket string. The invention integrates the tennis ball shooting, tennis ball speed and the racket string deformation in the process of striking, provides convenience to the theory research, and fully shows the versatility and integrity of the device.
Description
technical field [0001] The invention relates to a test device, in particular to a tennis racket dynamic test device and method which integrates testing of tennis ball launching, tennis speed and string deformation during impact. Background technique [0002] With the continuous development of my country's national economy and the promotion of national fitness, mass tennis has quietly emerged. In China, tennis has become popular and has become a sport for the whole society. Tennis, like other sports, has two sides. It can improve the health of the practitioner, but it can also cause sports injuries. In order to enable professional players to quickly improve their tennis skills and enable more amateurs to master the technical essentials of tennis as soon as possible and avoid sports injuries, it is particularly necessary to carry out in-depth research. [0003] At present, there are few devices in the market that integrate tennis ball launch and related tests. Most of them ar...
Claims
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IPC IPC(8): G01M7/08
CPCG01M7/08
Inventor 韩良高超
Owner SOUTHEAST UNIV