Dynamic property and response comparison experiment device for frame structure

A technology of dynamic characteristics and frame structure, applied in the field of frame structure dynamic characteristics and response comparison experimental device, to achieve the effects of intuitive dynamic characteristics and response, convenient maintenance, and simple structural design

Inactive Publication Date: 2012-02-22
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, even if there is an experimental device for the dynamic characteristics and response of the frame structure with vibration control devices, it is only for one or two control methods, and there is no comparison between the dynamic characteristics and response of the control frame and the reference frame structure, so it cannot be better explained. The characteristics and dynamic characteristics and response of the frame structure with control device

Method used

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  • Dynamic property and response comparison experiment device for frame structure
  • Dynamic property and response comparison experiment device for frame structure
  • Dynamic property and response comparison experiment device for frame structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] figure 1 The structure shown is the arrangement of the control frame (15) and the reference frame (14) of the same material and geometric size. The power of the motor (17) passes through the rotating force transmission rod (13), the frame force transmission rod (11), The frame connecting plate (9) is transferred to the frame connecting bottom plate (5), so as to realize the synchronous vibration of the reference frame (14) and the control frame (15) with one horizontal degree of freedom. The two water tanks (23) are respectively filled with red Body of Water (35). Horizontal vibration of different amplitudes is realized by adjusting the connecting position of the rotating force transmission rod (13) and the amplitude adjusting groove (25).

[0046] The simple pendulum mass ball (21) is connected to the upper frame plate (2) through a single cycloid (22), and the vibration control effect of the frame structure can be controlled by adjusting the length of the single cycloid...

Embodiment 2

[0048] The arrangement of the control frame (15) and the reference frame (14) structure is the same as that of the first embodiment.

[0049] Separate the column foot plate (4) of the control frame (15) with the frame connection bottom plate (5), connect the upper end of the rubber shock isolation pad (24) to the frame column (1) through the column foot plate (4), and connect the lower end to the frame connection bottom plate (5) ) Connection (the vibration control effect of the control frame structure can be achieved by increasing or decreasing the thickness of the rubber isolation pad (24)), the acceleration sensor (30) collects the reference frame (14), the control frame (15) and the frame connection base plate (5) The vibration response signal is transmitted to the charge amplifier, data acquisition and control card (27), computer and control software system (29) through the sensor signal line (32), and the collected data is displayed and analyzed, which can be visualized And...

Embodiment 3

[0051] The arrangement of the control frame (15) and the reference frame (14) structure is the same as that of the first embodiment.

[0052] One end of the magnetorheological damper (20) is connected to the magnetorheological damper bracket (18) through the force sensor (31), and the other end is connected to the lower frame plate (3) (control frame structure) through the magnetorheological damper connecting plate (19) The vibration control effect can be achieved by increasing or decreasing the current input to the magnetorheological damper (20)), the acceleration sensor (30) collects the reference frame (14), the control frame (15) and the frame connection base plate (5) The force sensor (31) collects the force signal of the magnetorheological damper (20) and transmits it to the charge amplifier and data acquisition and control card (27) through the sensor signal line (32) (the control card can be from Quanser) Q8 series of HIL control card), computer and control software syste...

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Abstract

The invention relates to the field of mechanics, in particular to a structural dynamics experiment. The technical problem to be solved is that a control frame with a control device and a reference frame structure without the control device are included in a dynamic property and response comparison experiment; the control frame and the reference frame structure are intuitively and simultaneously subjected to dynamic property and response comparison and check; the control frame mainly comprises a magneto-rheological damper, a simple pendulum quality ball, and a rubber shock isolation pad; the frame with a vibration control device is used as a control frame; the frame without the vibration control device is used as a reference frame; the reference frame and the control frame are connected through a foot plate and a frame connecting base plate; and the power of a motor is transferred to the frame connecting base plate sequentially by a rotation power transfer load, a frame power transfer pull rod and a frame connecting plate, so that horizontal vibration of the two frames is realized. The device is intuitive, can quantificationally reflect dynamic property and response of the control frame and the reference frame structure, and can be widely applied to experiment and demonstration equipment of high engineering schools.

Description

technical field [0001] The invention relates to structural dynamics experiments, in particular to an experimental device for comparing dynamic characteristics and responses of frame structures. Background technique [0002] Most of the existing experimental devices for dynamic characteristics and response of frame structures are designed for frame structures without additional control devices. In the structural dynamics vibration control experiment, it is very important to understand the dynamic characteristics and response of the frame structure after taking vibration control measures and installing vibration control devices. At present, even if there is an experimental device for the dynamic characteristics and response of the frame structure with vibration control devices, it is only for one or two control methods, and there is no comparison between the dynamic characteristics and response of the control frame and the reference frame structure, so it cannot be better exp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/02
Inventor 杜成斌于国军沈方伟孙立国雷冬
Owner HOHAI UNIV
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