Tuned mass damper detection device
By designing a tuned mass damper detection device including actuator, weighing sensor, laser displacement sensor and computer-controlled, the problem of difficulty in quickly and accurately detecting the performance parameters of the tuned mass damper in the prior art is solved, and the rapid and accurate detection of all performance parameters of the tuned mass damper is achieved.
Patent Information
- Application Number
- CN202510090460.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-04-18
AI Technical Summary
The prior art lacks a device specifically for the performance parameter detection of the tuned mass damper, making it difficult to quickly and accurately detect the design displacement, mass mass, self-vibration frequency, damping coefficient and stiffness of the tuned mass damper.
A tuning mass damper detection device is designed, including a base plate, a roof plate, a column, an actuator, a weighing sensor, an electromagnet, a guide rail, a slider, a test piece placement table, a fixing rod, a laser displacement sensor, a control acquisition device and a computer. The device realizes fast and accurate detection of the performance parameters of the tuned mass damper through actuators, weighing sensors and laser displacement sensors, combined with computer control and data processing.
It realizes rapid loading and automatic detection of the tuned mass damper, and can accurately measure the design displacement, mass mass, self-vibration frequency, damping coefficient and stiffness parameters. It is simple to operate and has high detection efficiency, covering the detection of all performance parameters of the tuned mass damper.
Smart Images
Figure CN119845563A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of detection technology, and in particular to a tuned mass damper detection device. Background Art
[0002] Tuned mass damper is a common structural vibration control device, which is widely used in high-rise structures, TV towers, large-span space structures, as well as overpasses, corridors, grid railway bridges and other structures. Tuned mass dampers are generally composed of mass blocks, springs and damping systems. When in use, the vibration frequency of the tuned mass damper is adjusted to be close to the frequency of the main structure, thereby changing the structural resonance characteristics and reducing the vibration of the structure under the action of external forces. The performance parameters of the tuned mass damper have a significant impact on the shock absorption effect of the structure, but there is currently no device specifically designed to detect the performance parameters of the tuned mass damper. Summary of the invention
[0003] In order to solve the technical problems existing in the above-mentioned prior art, the present invention provides a tuned mass damper detection device.
[0004] In order to achieve the above object, the technical solution of the present invention is: a tuned mass damper detection device includes: a base plate, a top plate, a column, an actuator, a weighing sensor, an electromagnet, a guide rail, a slider, a specimen placement table, a fixing rod, a laser displacement sensor, a control acquisition device, and a computer; The base plate and the top plate are fixedly connected as a whole by four columns, two guide rails are fixed in parallel on the base plate, two sliders are slidably installed on the guide rails, the specimen placement table is fixedly connected to the four sliders, the fixing rod is threadedly connected to the corner position of the specimen placement table, a through hole is provided in the middle of the top plate, the actuator is fixedly connected to the top plate, the actuating rod passes through the through hole of the top plate, the weighing sensor is fixedly connected to the actuating rod of the actuator, the electromagnet is fixedly connected to the weighing sensor, the laser sensor probe is fixed downward at the lower part of the top plate, and the control and acquisition device connects the actuator, the weighing sensor, the electromagnet, the laser displacement sensor and the computer through lines.
[0005] Preferably, the actuator is a hydraulic cylinder or an electric cylinder.
[0006] Preferably, the control and acquisition device controls the extension and retraction of the actuator and the power on and off of the electromagnet.
[0007] Preferably, the control acquisition device acquires the weighing sensor and laser displacement sensor signals at an adjustable acquisition frequency of 1-100 Hz and synchronously transmits the signals to the computer.
[0008] Preferably, the computer controls the extension and retraction of the actuator and the on and off of the electromagnet by controlling the acquisition device, and records and processes the signals of the weighing sensor and the laser displacement sensor in real time to obtain various performance parameters of the tuned mass damper.
[0009] The beneficial effects of the present invention are: The present invention can realize the rapid loading and automatic detection of the tuned mass damper, and accurately measure the five detection items of the tuned mass damper, namely, the design displacement, mass block mass, natural frequency, damping coefficient and stiffness. The present invention is simple to operate, has high detection efficiency, and covers the detection of all performance parameters of the tuned mass damper. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of the present invention;
[0011] Figure 2 It is a front structural schematic diagram of the present invention;
[0012] Figure 3 It is a schematic diagram of the use of the present invention;
[0013] Figure 4 is a schematic diagram of a second embodiment of the present invention;
[0014] Figure 5 is a schematic diagram of a third embodiment of the present invention;
[0015] In the figure, 1-base plate, 2-top plate, 3-column, 4-actuator, 5-weighing sensor, 6-electromagnet, 7-guide rail, 8-slider, 9-specimen placement table, 10-fixed rod, 11-laser displacement sensor, 12-control acquisition device, 13-computer, 14-tuned mass damper, 15-horizontal actuator. DETAILED DESCRIPTION
[0016] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.
[0017] Embodiment 1: Figure 1-3As shown, a tuned mass damper detection device includes: a base plate, a top plate, a column, an actuator, a weighing sensor, an electromagnet, a guide rail, a slider, a specimen placement table, a fixing rod, a laser displacement sensor, a control acquisition device, and a computer; the base plate and the top plate are fixedly connected to form a whole through four columns, two guide rails are fixed in parallel along the length direction of the base plate, two sliders are slidably installed on each guide rail, the specimen placement table is fixed on the four sliders, the fixing rod is threadedly connected to the specimen placement table, and the positioning function of the specimen placement table can be realized by tightening the fixing rod to hold the base plate, and the actuator is fixed to the top plate. The actuator head passes through the top plate and is fixed in series with the weighing sensor and the electromagnet to form a whole. The laser displacement sensor probe head is fixed downward under the top plate. The laser displacement sensor can be arranged alone, in two diagonal arrangements, or in four corners. Increasing the number of laser displacement sensors can improve the accuracy of displacement data. The control and acquisition device is connected to the actuator, the weighing sensor, the electromagnet and the computer through circuits to transmit control signals and data signals between the actuator, the weighing sensor, the electromagnet and the computer. The computer receives the data signal and outputs the detection result of the tuned mass damper parameters after calculation and processing.
[0018] Embodiment 2: Figure 4 As shown, the difference between Example 2 and Example 1 is that the laser displacement sensor of the device can be fixed on the column and moved up and down, and can be arranged alone, in two diagonal arrangements, or in four corners, thereby solving the problem of range selection of the laser displacement sensor of the detection device, and using a closer laser displacement sensor for displacement specimens of different designs to achieve more accurate measurement.
[0019] Embodiment 3: Figure 5 As shown, the difference between Example 3 and Example 1 is that the device has a horizontal actuator fixedly mounted on the base plate, the telescopic rod of the horizontal actuator is fixed to the specimen placement table, the horizontal actuator is connected to the control and acquisition device circuit, and the control and acquisition device controls the telescopic movement of the horizontal actuator, thereby realizing fully automatic detection after the specimen is loaded.
[0020] Working principle: Place the tuned mass damper to be tested on the specimen placement table, push it to the left to the bottom of the actuator, tighten the fixing rod, operate the computer to control the actuator to slowly extend, and clear all sensors when the lower surface of the electromagnet just touches the upper surface of the mass block of the tuned mass damper. Then control the electromagnet to energize, and after confirming that the adsorption is firm, control the actuator to slowly retract to the design displacement of the tuned mass damper (the spring recovery position in the tuned mass damper), record and save the mass data measured by the weighing sensor, then control the electromagnet to cut off the power, so that the mass block can vibrate freely until the mass block is completely still. At the same time, the displacement sensor records and saves the free vibration displacement change of the mass block in real time. The computer calculates the test results of the design displacement, mass block mass, natural frequency, damping coefficient and stiffness of the tuned mass damper through the mass data measured by the weighing sensor and the displacement change data measured by the displacement sensor. After the test, loosen the fixing rod, move the specimen placement table to the loading position, remove the test piece, and the test is completed. If continuous testing is required, just replace the specimen and repeat the above test steps.
[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A tuned mass damper detection device, characterized in that: The device comprises: a base plate, a top plate, a column, an actuator, a weighing sensor, an electromagnet, a guide rail, a slider, a specimen placement table, a fixing rod, a laser displacement sensor, a control acquisition device, and a computer; the base plate and the top plate are fixedly connected as one through four columns, two guide rails are fixed in parallel on the base plate, two sliders are slidably installed on the guide rails, the specimen placement table is fixedly connected to the four sliders, the fixing rod is threadedly connected to the corner position of the specimen placement table, a through hole is provided in the middle of the top plate, the actuator is fixedly connected to the top plate, the actuating rod passes through the through hole of the top plate, the weighing sensor is fixedly connected to the actuating rod of the actuator, the electromagnet is fixedly connected to the weighing sensor, the laser sensor probe is fixed downwardly on the lower part of the top plate, and the control acquisition device is connected to the actuator, the weighing sensor, the electromagnet, the laser displacement sensor and the computer through lines.
2. A tuned mass damper detection device according to claim 1, characterized in that: The actuator is a hydraulic cylinder or an electric cylinder.
3. A tuned mass damper detection device according to claim 1, characterized in that: The control and acquisition device controls the extension and retraction of the actuator and the power on and off of the electromagnet.
4. A tuned mass damper detection device according to claim 3, characterized in that: The control acquisition device acquires the signals of the weighing sensor and the laser displacement sensor at an adjustable acquisition frequency of 1-100 Hz and synchronously transmits the signals to the computer.
5. A tuned mass damper detection device according to claim 1, characterized in that: The computer controls the extension and retraction of the actuator and the power on and off of the electromagnet by controlling the acquisition device, and records and processes the signals of the weighing sensor and the laser displacement sensor in real time to obtain various performance parameters of the tuned mass damper.