CN201060585Y - Experiment device for controlling high building structure vibration using mass single pendulum - Google Patents
Experiment device for controlling high building structure vibration using mass single pendulum Download PDFInfo
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- CN201060585Y CN201060585Y CNU2007200710523U CN200720071052U CN201060585Y CN 201060585 Y CN201060585 Y CN 201060585Y CN U2007200710523 U CNU2007200710523 U CN U2007200710523U CN 200720071052 U CN200720071052 U CN 200720071052U CN 201060585 Y CN201060585 Y CN 201060585Y
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Abstract
The utility model relates to an experimental facility using a quality simple pendulum to control the vibration of a high rise building structure, and the facility comprises a function generator, a vibration generator, a cantilever straight girder, a quality simple pendulum, a quality bracket, a sliding platform, a stop lock block, a platform guide board and a machine frame. The function generator, the vibration generator and the platform guide board are respectively arranged at the top of the machine frame, and the function generator is connected with the vibration generator which is further connected with the sliding platform. The connecting places for the lower parts on two sides of the sliding platform and the platform guide board are correspondingly provided with guide grooves, and big steel balls are positioned in the connected guide grooves. Rectangle grooves are arranged above two sides of the sliding platform and small steel balls are included inside, and the position of the small steel balls is higher than the rectangle grooves. Two sides of the sliding platform are respectively positioned in the stop lock block which is connected with the platform guide board. The lower end part of the cantilever straight girder is fixedly positioned above the sliding platform, the quality bracket is sleeved above the cantilever straight girder, and the quality simple pendulum is hung on the quality bracket. The utility model can not only demonstrate experimental verification and show the related vibration theory to students, but also cause the students to fully use the mastered comprehensive knowledge to design the empirical methods for controlling the high rise building structure model vibration and to complete lab reports with designability.
Description
Technical field
The utility model relates to a kind of experimental provision with the vibration of quality single pendulum control high building structure.
Background technology
21st century is the culturing innovative talent, and each key university of the whole nation has offered theoretical mechanics experiment course successively since 2002.Because theoretical mechanics experiment course is started late, the most experiments content is based on illustrative experiment and replication experiment, and the comprehensive Design experiment that allows the own contrived experiment scheme of student and finish experiment under teacher's guidance seldom.At present in theoretical mechanics dynamics part (or vibration mechanics, mechanical vibration) experiment course teaching, the vibrational system that generally adopts free beam or cantilever beam structure form composition is as empirical model, the vibration shape is also measured and observe to the natural frequency that allows the student calculate this vibrational system by experiment, verify that whether its Theoretical Calculation result conforms to actual, is called as replication experiment in the experimental teaching classification.The content of replication experiment, method, step and requirement be design in advance by the experimental teaching outline by teacher and write guide book of experiment, last class hour of student must be finished laboratory report according to content, method, step and the requirement of guiding book.Therefore, replication experiment can not be given full play to student's subjective initiative and creativeness, the innovative talent's of incompatibility new century teaching training mode.
Summary of the invention
The utility model purpose is to provide a kind of experimental provision with the vibration of quality single pendulum control high building structure.
The experimental provision of the usefulness quality single pendulum control high building structure vibration that the utility model proposes, form by function signal generator 1, vibrator 2, cantilever straight beam 3, quality single pendulum 4, quality frame 5, sliding platform 6, spacing briquetting 7, platform guide plate 8, support 9, right angle chuck 10, quality frame 11, big steel ball 12 and little steel ball 13, its structure such as Fig. 1-shown in Figure 4.Wherein, function signal generator 1, vibrator 2, platform guide plate 8 is individually fixed in support 9 tops, the output line of function signal generator 1 connects the input end of vibrator 2, the output shaft of vibrator 2 is connected with sliding platform 6 one side levels, sliding platform 6 is positioned at platform guide plate 8 tops, and can on platform guide plate 8, make horizontal reciprocating movement, top, sliding platform 6 both sides has rectangular channel, be provided with little steel ball 13 in it, little steel ball 13 positions are higher than the rectangle groove face, spacing briquetting 7 is L type structure, be made up of horizontal ends and vertical end, sliding platform 6 both sides lay respectively in the spacing briquetting 7, and connect the horizontal ends of spacing briquetting 7 by little steel ball 13, make sliding platform 6 and spacing briquetting 7 keep certain clearance, the vertical end of spacing briquetting 7 connects platform guide plate 8, and the bottom of cantilever straight beam 3 is fixed in sliding platform 6 tops by right angle chuck 10, and quality frame 5 is placed in cantilever straight beam 3 tops, its position can be adjusted up and down, and quality single pendulum 4 hangs on the quality frame 11.
In the utility model, sliding platform 6 down either side and platform guide plate 8 connecting places have gathering sill, correspondingly have gathering sill on the platform guide plate 8, big steel ball 12 in the gathering sill that links to each other between.
In the utility model, support 9 rectangular structures, its bottom is provided with support spiral shell pin 14, by the level of threaded adjusting support 9.
The course of work of the present utility model is as follows:
The utility model is by being simplified to the high building structure object model one cantilever straight beam 3, the xsect of cantilever straight beam 3 can be decided according to the works model, can be that rectangle also can be difformities such as circle, the optional aluminium alloy of its material, stainless rule, organic glass or thin matter timber etc., but cantilever straight beam 3 is fixed on the reciprocating sliding platform 6 of horizontal linear, sliding platform 6 is connected with vibrator 2 horizontal fixed, vibrator 2 is subjected to function signal generator 1 control, when function signal generator 1 output simulation wind shakes or during the seismic stimulation signal, vibrator 2 beginning dynamic responses, affect sliding platform 6 horizontal linear to-and-fro movements, the works model (cantilever straight beam 3) that is positioned at simultaneously on the sliding platform 6 produces resonance, at this moment can see the single order or two first order modes of works model very intuitively, single order mode of oscillation (based on the single order mode of oscillation) according to the works model designs one or one group of quality single pendulum 4 then, make it mutually tuning with cantilever straight beam 3, one or one group of quality single pendulum 4 are suspended on the appropriate location of cantilever straight beam 3 amplitude maximums, can implement control (vibration damping) the vibration of works model.Just can find with vision that its vibration of works model (cantilever straight beam) of original resonance is basic disappears or has weakened greatly.
The utility model has overcome the deficiency that can only experimentize to the student with the instructional mode of replication experiment or illustrative experiment with present theoretical mechanics (or vibration mechanics, mechanical vibration) vibration testing device, provide a kind of and can not only allow the student, and the comprehensive knowledge that can allow the student use to have grasped designs and produces one or one group of quality single pendulum are implemented control (vibration damping) to the vibration of high building structure model device voluntarily the natural frequency of high building structure model experimentize checking and demonstration one, two first order modes.
Adopt dynamic signal acquisition disposal system DSPS4.0 (day data technology company limited of capital, Beijing South Airways) and piezoelectric type acceleration sensor (model: 4393v weight: 2.4g Denmark B﹠amp; K company) etc. instrument carries out actual dynamic test to effectiveness in vibration suppression of the present utility model, and damping rate can reach more than 77.8%.
The beneficial effects of the utility model are, not only can carry out the experimental verification and the demonstration of relevant theory of oscillation to the student, and can also allow the student give full play to oneself subjective initiative and creativeness, the comprehensive knowledge that utilization has been grasped designs the experiment to high building structure object model vibration enforcement control (vibration damping) voluntarily, and finishes the designability laboratory report.From cultivating innovative talent's angle of new century, its to " technique effect " of society with inestimable.Adopt the quality single pendulum to implement vibration control (vibration damping), simple in structure, and also economical again.
Description of drawings
Fig. 1 is that vibration testing device master of the present utility model looks synoptic diagram.
Fig. 2 is vibration testing device left side apparent structure figure.
Fig. 3 is the lower-left partial enlarged drawing of Fig. 2.
Fig. 4 is the bottom right partial enlarged drawing of Fig. 2.
Number in the figure: 1 is function signal generator, and 2 is vibrator, and 3 is the cantilever straight beam, 4 is the quality single pendulum, and 5 is the quality frame, and 6 is sliding platform, 7 is spacing briquetting, 8 is the platform guide plate, and 9 is support, and 10 is the right angle chuck, 11 is quality frame gib screw, 12 is big steel ball, and 13 is little steel ball, and 14 is support spiral shell pin.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Embodiment 1: following each parts are connected by Fig. 1-mode shown in Figure 4, and these those skilled in the art all can smooth implementation.
In Fig. 1, the input end of the output line of function signal generator 1 and vibrator 2 joins, and vibrator 2 is fixed on the rectangle support 9, and the output shaft of vibrator 2 is connected with sliding platform 6 side middle-end horizontal fixed.
In Fig. 2, four support spiral shell pin 14 lay respectively on four angles of rectangle support 9, by the level of threaded adjusting rectangle support 9.Platform guide plate 8 is fixedly connected on the rectangle support 9, sliding platform 6 is placed the top, its bottom-right gathering sill is corresponding with the gathering sill on the platform guide plate 8, one group big steel ball 12 is positioned in the middle of a pair of gathering sill, one group little steel ball 13 is positioned in the middle of the rectangular channel in left side, simultaneously 6 of sliding platforms is played one millimeter.The spacing briquetting 7 of the left and right sides is connected and fixed with the M8 socket head cap screw with the platform guide plate respectively, respectively putting into one group little steel ball 13 in the rectangular channel of both sides, sliding platform 6 top makes the spacing briquetting 7 and the corresponding surface of sliding platform 6 keep 0.5 to 1 mm clearance, the bottom of high building structure object model cantilever straight beam 3 is fixed in sliding platform 6 upper table surface centers with right angle chuck 10, quality frame 5 is placed in the top of cantilever straight beam 3, its position can be adjusted up and down, determine that according to designing requirement the back is fixing with quality frame gib screw 11, quality single pendulum 4 is suspended on the quality frame gib screw 11.
Claims (3)
1. experimental provision with the vibration of quality single pendulum control high building structure, by function signal generator (1), vibrator (2), cantilever straight beam (3), quality single pendulum (4), quality frame (5), sliding platform (6), spacing briquetting (7), platform guide plate (8), support (9), right angle chuck (10), quality frame (11), big steel ball (12) and little steel ball (13) are formed, it is characterized in that function signal generator (1), vibrator (2), platform guide plate (8) is individually fixed in support (9) top, the output line of function signal generator (1) connects the input end of vibrator (2), the output shaft of vibrator (2) is connected with sliding platform (6) one side levels, sliding platform (6) is positioned at platform guide plate (8) top, and can on platform guide plate (8), make horizontal reciprocating movement, top, sliding platform (6) both sides has rectangular channel, be provided with little steel ball (13) in it, little steel ball (13) position is higher than the rectangle groove face, spacing briquetting (7) is L type structure, form by horizontal ends and vertical end, sliding platform (6) both sides lay respectively in the spacing briquetting (7), and connect the horizontal ends of spacing briquetting (7) by little steel ball (13), make sliding platform (6) and spacing briquetting (7) keep certain clearance, the vertical end of spacing briquetting (7) connects platform guide plate (8), the bottom of cantilever straight beam (3) is fixed in sliding platform (6) top by right angle chuck (10), quality frame (5) is placed in cantilever straight beam (3) top, and quality single pendulum (4) hangs on the quality frame (11).
2. the experimental provision with the vibration of quality single pendulum control high building structure according to claim 1, it is characterized in that sliding platform (6) down either side and platform guide plate (8) connecting place have gathering sill, correspondingly have gathering sill on the platform guide plate (8), big steel ball (12) in the gathering sill that links to each other between.
3. the experimental provision with the vibration of quality single pendulum control high building structure according to claim 1 is characterized in that the rectangular structure of support (9), and its bottom is provided with support spiral shell pin (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200710523U CN201060585Y (en) | 2007-06-14 | 2007-06-14 | Experiment device for controlling high building structure vibration using mass single pendulum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200710523U CN201060585Y (en) | 2007-06-14 | 2007-06-14 | Experiment device for controlling high building structure vibration using mass single pendulum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060585Y true CN201060585Y (en) | 2008-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200710523U Expired - Fee Related CN201060585Y (en) | 2007-06-14 | 2007-06-14 | Experiment device for controlling high building structure vibration using mass single pendulum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201060585Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274936A (en) * | 2015-11-20 | 2016-01-27 | 长安大学 | Vibration inhibition method and apparatus for controlling vibration of bridge tower |
| CN105788411A (en) * | 2016-04-30 | 2016-07-20 | 陈显盈 | Resonant demonstration instrument |
| CN107833519A (en) * | 2017-11-30 | 2018-03-23 | 重庆科技学院 | A kind of analogue system for simulating modern building shock insulation |
-
2007
- 2007-06-14 CN CNU2007200710523U patent/CN201060585Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274936A (en) * | 2015-11-20 | 2016-01-27 | 长安大学 | Vibration inhibition method and apparatus for controlling vibration of bridge tower |
| CN105788411A (en) * | 2016-04-30 | 2016-07-20 | 陈显盈 | Resonant demonstration instrument |
| CN107833519A (en) * | 2017-11-30 | 2018-03-23 | 重庆科技学院 | A kind of analogue system for simulating modern building shock insulation |
| CN107833519B (en) * | 2017-11-30 | 2023-09-22 | 重庆科技学院 | Simulation system for simulating earthquake isolation of modern building |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20110614 |