Nonlinear elastic auxiliary vibration device and vibration rocking table
An elastic auxiliary and vibration device technology, which is applied in the direction of measuring devices, vibration testing, machine/structural component testing, etc., can solve the problem of high power consumption of the system, the inability to design a vibration swing table that meets the requirements of use, and the increase in manufacturing and use costs, etc. problem, to achieve the effect of reducing input power, facilitating realization and control accuracy maintenance, and high reliability
Inactive Publication Date: 2018-08-14
JILIN UNIV
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to overcome that in the development process of the heavy-load large-amplitude vibration swing table in the prior art, the design, manufacture and use costs of the vibration swing table are greatly increased due to the excessive power consumption of the system, and it is even impossible to design a The use of the required vibration and swing table provides a nonlinear elastic auxiliary vibration device and a vibration and swing table including the vibration device
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[0092] refer to Figure 15 , assuming k=15N / mm, L=300mm, θ 0 = 45°, F t0 = 0N, then through the simulation analysis, the relationship curve of the thrust of the upper pressing block 14 / lower pressing block 12 applied on the tongue-shaped plate 13 with the displacement of the tongue-shaped plate shown in the figure is obtained.
[0093] Figure 16 The curve of the relationship between the stiffness of the nonlinear elastic auxiliary vibration device and the displacement of the tongue plate is shown.
[0094] Figure 17 Assuming that the overall mass of the equipment acting on the nonlinear elastic auxiliary vibration device 2 is 80kg, the curve of the natural frequency of the vibration swing table with the nonlinear elastic auxiliary vibration device 2 varies with displacement. It can be seen from the figure that when the supporting platform 1 vibrates at a large displacement amplitude, the natural frequency of the vibrating oscillating platform is low, and when the support...
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The invention discloses a non-linear elastic auxiliary vibrating device and a vibration swinging bench and aims to solves the problems that the design, manufacturing and usage cost of the vibration swinging bench caused by large power consumption is greatly increased in the research of the vibration swinging bench, and the vibration swinging bench meeting the usage requirements is not available. The vibration swinging bench comprises a support platform (1), four non-linear elastic auxiliary vibrating devices (2), four support seats (3) and three vibration exciters (4). The three vibration exciters (4) are installed between the support platform (1) and a base (5) through spherical hinges. The four non-linear elastic auxiliary vibrating devices (2) are symmetrically arranged on the periphery of the support platform (1). The four non-linear elastic auxiliary vibrating devices (2) are respectively and fixedly connected with one side of the support platform (1) through one tongue-shaped plate. The four non-linear elastic auxiliary vibrating devices (2) are installed on the four support seats (3). The bottom end of the support seats (3) are fixedly connected with the base (5).
Description
technical field [0001] The invention relates to a device belonging to the field of vibration environment test. More precisely, the present invention relates to a nonlinear elastic auxiliary vibration device and a vibrating rocking table including the vibration device. Background technique [0002] The vibration rocking table is a device that can reproduce the vibration environment of the test piece, and is used to study the reliability and stability of the test piece under different vibration environments. When the mass of the test piece is large and the vibration displacement, velocity and acceleration amplitude requirements are high, and the specific vibration test conditions are met, the required input power of the vibration swing table will increase significantly. Restricted by the cost of design, manufacture and use, the scope of application of the existing vibrating rocking table is limited. [0003] In order to save energy, improve efficiency, and expand the scope o...
Claims
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IPC IPC(8): G01M7/02
CPCG01M7/02
Inventor 周兴华孙晓唐可洪王勇威赵丁选
Owner JILIN UNIV