CN103035155A - Demonstration and display teaching device for soil engineering centrifugal simulation technology test - Google Patents
Demonstration and display teaching device for soil engineering centrifugal simulation technology test Download PDFInfo
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- CN103035155A CN103035155A CN2012105733353A CN201210573335A CN103035155A CN 103035155 A CN103035155 A CN 103035155A CN 2012105733353 A CN2012105733353 A CN 2012105733353A CN 201210573335 A CN201210573335 A CN 201210573335A CN 103035155 A CN103035155 A CN 103035155A
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Abstract
The invention discloses a demonstration and display teaching device for a soil engineering centrifugal simulation technology test. A centrifuge testing demonstration part is arranged on the right side of a whole display table. A computer, a display screen, a direct current power supply, a control panel, an operation room model, an electric control cabinet model and an operation table model are arranged on the left side of the display table. The demonstration and display teaching device can be used to demonstrate rock-soil body deformation and damage processes to non-professional people or students, enables the non-professional people or the students to understand basic characteristics of soil, can be combined with soil mechanics and foundation engineering courses to conduct test teaching, achieves efficient studying effect through active participation of the students, and can be directly used for research result introduction, class teaching, and the like when connected with an external display device through a computer. The demonstration and display teaching device is complete in function, simple, visual, convenient to operate, and capable of meeting requirements of rock-soil type test demonstration and displaying teaching.
Description
Technical field
The present invention relates to a kind of teaching demonstration device, especially relate to a kind of Centrifugal Simulation Technique of Soil Mechanics pilot demonstration and show instructional device.
Background technology
The centrifuge model test technology is the physical simulation techniques that outer Geotechnical Engineering circle of Present Domestic is competitively studied and adopted, the centrifugal acceleration of utilizing geotechnical centrifuge to produce can be dwindled the prototype structures n doubly, the variations such as the distortion of research structures, stress, its content of the test almost has been applied to all spectra of Geotechnical Engineering.Built geotechnical centrifuge is nearly hundred in the world, and many colleges and universities of China and R﹠D institution have also built up the big-and-middle-sized geotechnical centrifuge of Shi Duotai in succession.Along with the day by day maturation of centrifuge modelling technology, the centrifuge modelling technology not only becomes the important means of Geotechnical Engineering scientific research, and becomes the effective tool that solves the Important Project key technical problem.Introduce and promote the centrifuge modelling technology, teach relevant knowledge and technical ability, show magical hypergravity and interesting soil mechanics phenomenon to the teenager to ground Major and professional and technical personnel to engineering circles and functional department, become a vital task of ground teaching.Because big-and-middle-sized geotechnical centrifuge investment is large, technical requirement is high, most colleges and universities can't build; Experimental scale is large, the duration of runs is long, as large-area teaching and pilot demonstration and be not suitable for, and the therefore instructional device that adapts with teaching and pilot demonstration requirement of exploitation needs that become a reality.
At present, existing scholar attempts micro centrifuge is applied in undergraduate course or the postgraduate's experimental teaching activity, obtains better effects.The device that adopts or simple in structure or utilize the miscellaneous equipment transformation to form only can satisfy professional teaching needs, function singleness.There is no a kind of suitable different background personnel, the complete equipment that integrate displaying, impart knowledge to students and test.
Summary of the invention
The object of the present invention is to provide a kind of Centrifugal Simulation Technique of Soil Mechanics pilot demonstration and show instructional device.It can introduce centrifuge modelling technology and centrifuge modelling tests ultimate principle, the soil body and structures breakoff phenomenon in the demonstration hydro-extractor operation process, provide a kind of effective means for the teacher lectures ground class professional knowledge, also set up a platform for popularizing relevant centrifuge modelling knowledge and academic exchange.
The technical solution used in the present invention is:
Centrifuge test demonstration part of the present invention is arranged in the right side of whole show stand, and computing machine, display screen, direct supply, control panel and operation room model, electrical control cubicles model, operator's console model are arranged in the left side of show stand; Wherein:
This centrifuge test demonstration part; Comprise turntable, pivoted arm, two hanging baskets, direct current generator, deceleration steering gear, and the model of Lubricating-oil Station, supply station, instrument room and high pressure fuel source; The turntable of hydro-extractor is fixed on supporting clapboard central authorities, turntable up and down centre is installed bearing, main shaft passes the turntable center, pivoted arm places the turntable top, pivoted arm middle part and main shaft keylock, the pivoted arm top arranges instrument room, and instrument room and pivoted arm can rotate with main shaft, two hanging baskets are connected by the hanging basket rotating shaft respectively with the pivoted arm two ends, and two minisize pick-up heads are contained in respectively the pivoted arm two ends; The main shaft lower end is passed supporting clapboard and is connected with the output terminal of the deceleration steering gear that is installed in lower floor, between main shaft and deceleration steering gear unilateral bearing is set, and the input end of deceleration steering gear is connected with direct current generator, hydro-extractor outer setting translucent cover; Direct current generator is set hydro-extractor at computer display and is rotated parameter by computing machine or by manually control of control, and shows hanging basket base plate place centrifugal acceleration.
Described two hanging baskets, one of them hanging basket is provided with the pilot demonstration model, and another hanging basket is provided with and the equiponderant equilibrate counterweight of pilot demonstration model.Described pilot demonstration model is soft soil foundation, dike Ju side slope.
The beneficial effect that the present invention has is:
(1) each centrifugal test center in different occasions to equipment of itself introduction and displaying.
(2) show that to layman or student this equipment forms and principle.
(3) demonstrate Rock And Soil deformation and failure process for layman or student, the fundamental characteristics of understanding soil directly perceived.
(4) can carry out the test teaching in conjunction with soil mechanics and foundation works course, participate in arriving the effect of efficient study by student's active.
(5) be connected with external display device by controlling computing machine, can be directly used in achievement in research introduction, student classroom teaching etc.Summarize describedly, this apparatus function is complete, and simple, intuitive is easy to operate, can satisfy the pilot demonstration of ground class and the requirement of showing teaching.
Description of drawings
Fig. 1 is structural principle synoptic diagram of the present invention.
Fig. 2 is the center partial enlarged drawing of Fig. 1.
Fig. 3 is that the A of Fig. 1 is to view.
Fig. 4 is that the D of Fig. 1 is to view.
Fig. 5 is the B-B cut-open view of Fig. 1.
Fig. 6 is the C-C cut-open view of Fig. 1.
Among the figure: 1, computing machine, 2, show stand, 3, the electrical control cubicles model, 4, the operation room model, 5, the operator's console model, 6, display screen, 7, hanging basket, 8, upper backup pad, 9, the high-strength transparence cover, 10, slip ring, 11, the instrument room model, 12, pivoted arm, 13, radial bearing, 14, lamina of septum pellucidum, 15, the Lubricating-oil Station model, 16, main shaft, 17, unilateral bearing, 18, the deceleration steering gear, 19, radial thrust bearing, 20, direct current generator, 21, supporting clapboard, 22, the exhibition booth framework, 23, direct supply, 24, turntable, 25, the supply station model, 26, the pilot demonstration model, 27, minisize pick-up head, 28, the hanging basket rotating shaft, 29, the high pressure fuel source model, 30, speed display, 31, control panel.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Such as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, centrifuge test demonstration part is arranged in the right side of whole show stand 2 among the present invention, and computing machine 1, display screen 6, direct supply 23, control panel 31 and operation room model 4, electrical control cubicles model 3, operator's console model 5 are arranged in the left side of show stand 2;
This centrifuge test demonstration part; Comprise turntable 24, pivoted arm 12, two hanging baskets 7, direct current generator 20, deceleration steering gear 18, and the model of Lubricating-oil Station 15, supply station 25, instrument room 11 and high pressure fuel source 29; The effective radius of turn 450mm(rotation center of hydro-extractor is placed the base plate of test specimen demonstrating model 26 to hanging basket 7), its revolution space height 440mm.This pilot demonstration partly is divided into 2 layers up and down, and rotary centrifuge modelling test is arranged on the upper strata, and wherein, turntable 24, main shaft 16 etc. is made with metals such as iron and steel, and the usefulness light-weight metals (alloy aluminum) such as pivoted arm 12 and hanging basket 7 are made.Lower floor arranges little centrifuge modelling test drive unit etc., comprising direct current generator 20, deceleration steering gear 18, also is placed with Lubricating-oil Station model 15, supply station model 25 and high pressure fuel source model 29 at this layer simultaneously.The turntable 24 of little hydro-extractor is fixed on supporting clapboard 21 central authorities, turntable is installed radial bearing 13 and radial thrust bearing 19 in the centre about in the of 24, main shaft 16 passes turntable 24 centers by radial bearing 13 and radial thrust bearing 19, pivoted arm 12 places turntable 24 tops, use keylock with main shaft 16, pivoted arm 12 tops arrange instrument room 11, instrument room 11 and pivoted arm 12 can rotate with main shaft 16, hanging basket 7 is connected by hanging basket rotating shaft 28 with pivoted arm 12, hanging basket 7 was sagging when hydro-extractor was static, after pivoted arm 12 rotation, hanging basket 7 has been put with rotation, as shown in Figure 1.Main shaft 16 lower ends are passed supporting clapboard 21 and are connected with the output terminal of the deceleration steering gear 18 that is installed in lower floor, between main shaft 16 and deceleration steering gear 18, unilateral bearing 17 is set, in case the moment of inertia damage equipment during 7 rotation of pivoted arm 12 and hanging basket, the input end of deceleration steering gear 18 is connected with direct current generator 20, when direct current generator 20 rotates, then main shaft 16 also rotates thereupon, drives pivoted arm 12, hanging basket 7 rotations, and the hanging basket 7 of rotation is put around hanging basket rotating shaft 28.The high-intensity translucent cover 9 of hydro-extractor outer setting is installed back up pad 8 on the translucent cover 9, between the levels except the part that back up pad 21 is set remainder separate with lamina of septum pellucidum 14.
The demonstration backup system comprises each centrifugal test backup system model of hydro-extractor, demonstration pilot lamp, speed display and control computing machine.Each centrifugal test backup system model comprises operation room model 4, operator's console model 5, electrical control cubicles model 3, Lubricating-oil Station model 15, supply station model 25, high pressure fuel source model 29 and instrument room model 11 etc.Wherein, the transparent organic glass of operation room model 4 usefulness is made, and other models can adopt plastics.Operator's console model 5 and electrical control cubicles model etc. are placed in the operation room; The models such as Lubricating-oil Station model 15, test gas station and test petrol station are placed on the space of hydro-extractor lower floor; Instrument room model 11 is placed on hydro-extractor pivoted arm central upper.Above-mentioned each model does not participate in and adopts in the test that micro centrifuge carries out, and mainly is be used to the composition of introducing hydro-extractor and auxiliary device thereof and installation site.The demonstration pilot lamp is installed in each position that needs demonstration, sends flicker under the control of control computing machine, aided education demonstration and equipment introduction.As, when introducing centrifugal basket, computer control is installed in the regular flicker of pilot lamp on the hanging basket, indication hanging basket position.Speed display can show the rotating speed of micro centrifuge and the ratio of corresponding hydro-extractor acceleration and acceleration of gravity simultaneously, imagery explanation centrifuge modelling ultimate principle.The control computing machine can with the control computer utility of micro centrifuge, by computer operation interface control demonstration indicator light switch and speed display reading, be introduced hydro-extractor composition, principle of work and centrifuge modelling ultimate principle; In addition, this computing machine can also be used for the achievement in research introduction of academic exchange.
The below is embodiments of the invention:
Embodiment 1:
Be used as pilot demonstration: pilot demonstration model (such as soft soil foundation, dike Ju side slope etc.) 26 is placed on hanging basket 7 base plates and fixation, place the counterweight object of same weight at another hanging basket 7, velocity of rotation is set starts hydro-extractor, open the minisize pick-up head monitoring software, observe model by computer display 6 and change.
Embodiment 2:
As showing: open computing machine 1, by clicking successively the control knob control diverse location demonstration pilot lamp flicker that shows on the computer display 6, introduce successively hydro-extractor each several part title and function; Start micro centrifuge and introduce the hydro-extractor principle of work, by centrifugal acceleration on the speed display 30.
Claims (3)
- A Centrifugal Simulation Technique of Soil Mechanics pilot demonstration with show instructional device, it is characterized in that: centrifuge test demonstration part is arranged in the right side of whole show stand (2), and computing machine (1), display screen (6), direct supply (23), control panel (31) and operation room model (4), electrical control cubicles model (3), operator's console model (5) are arranged in the left side of show stand (2);This centrifuge test demonstration part; Comprise turntable (24), pivoted arm (12), two hanging baskets (7), direct current generator (20), deceleration steering gear (18), and the model of Lubricating-oil Station (15), supply station (25), instrument room (11) and high pressure fuel source (29); The turntable of hydro-extractor (24) is fixed on supporting clapboard (21) central authorities, turntable (24) up and down centre is installed bearing, main shaft (16) passes turntable (24) center, pivoted arm (12) places turntable (24) top, keylock is used with main shaft (16) in pivoted arm (12) middle part, pivoted arm (12) top arranges instrument room (11), instrument room (11) and pivoted arm (12) can rotate with main shaft (16), two hanging baskets (7) are connected by hanging basket rotating shaft (28) respectively with pivoted arm (12) two ends, and two minisize pick-up heads (27) are contained in respectively pivoted arm (12) two ends; Main shaft (16) lower end is passed supporting clapboard (21) and is connected with the output terminal of the deceleration steering gear (18) that is installed in lower floor, between main shaft (16) and deceleration steering gear (18), unilateral bearing (17) is set, the input end of deceleration steering gear (18) is connected with direct current generator (20), hydro-extractor outer setting translucent cover (9); Direct current generator (20) is set hydro-extractor at computer display (6) and is rotated parameter by computing machine (1) or by manually control of control, and shows hanging basket (7) base plate place centrifugal acceleration.
- 2. a kind of Centrifugal Simulation Technique of Soil Mechanics pilot demonstration according to claim 1 and displaying instructional device, it is characterized in that: described two hanging baskets (7), one of them hanging basket is provided with the pilot demonstration model, and another hanging basket is provided with and the equiponderant equilibrate counterweight of pilot demonstration model.
- 3. a kind of Centrifugal Simulation Technique of Soil Mechanics pilot demonstration according to claim 2 and displaying instructional device, it is characterized in that: described pilot demonstration model is soft soil foundation, embankment slope.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411551A (en) * | 2013-08-27 | 2013-11-27 | 西南交通大学 | Soil body sample tiny deformation imaging detecting device and method |
| CN104841575A (en) * | 2015-05-21 | 2015-08-19 | 中国工程物理研究院总体工程研究所 | Integrated rigid jib of dynamic centrifuge |
| CN106841028A (en) * | 2017-02-21 | 2017-06-13 | 中国工程物理研究院总体工程研究所 | Double hanging baskets symmetrically fold arm centrifugal test device |
| CN104971829B (en) * | 2015-06-19 | 2018-04-10 | 山东省农作物种质资源中心 | A kind of portable PC R reaction tube special centrifugal machines |
| CN108414731A (en) * | 2018-05-08 | 2018-08-17 | 中国工程物理研究院总体工程研究所 | The geotechnical centrifuge structure of single-layer layout |
| CN109967269A (en) * | 2019-04-30 | 2019-07-05 | 中国工程物理研究院总体工程研究所 | A kind of support of centrifuge pivoted arm and drive mechanism |
| WO2020098203A1 (en) * | 2018-11-13 | 2020-05-22 | 浙江大学 | Data processing method used for supergravity geological structure physical simulation experiment |
| CN111678717A (en) * | 2020-05-09 | 2020-09-18 | 中国飞机强度研究所 | Centrifugal test device |
| CN112781519A (en) * | 2021-01-20 | 2021-05-11 | 南京大学 | Physical simulation experiment device and method for rock ring structural deformation |
| CN114534930A (en) * | 2022-01-25 | 2022-05-27 | 浙江大学 | Multi-channel oil-water conveying device and method of arm type centrifugal machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01250063A (en) * | 1988-03-30 | 1989-10-05 | Mitsubishi Heavy Ind Ltd | Servo valve for centrifugal soil testing device |
| JPH11194705A (en) * | 1997-12-26 | 1999-07-21 | Nishimatsu Constr Co Ltd | Method and device for deep circular pit model experimentation |
| JPH11296068A (en) * | 1998-04-07 | 1999-10-29 | Tokyu Constr Co Ltd | Device and method for sand fall |
| KR200461188Y1 (en) * | 2010-06-01 | 2012-06-26 | (주)미래세움 | The experience system for the understang of centrifugal force |
| CN102610146A (en) * | 2012-03-06 | 2012-07-25 | 江苏大学 | Teaching experiment platform of multifunctional photovoltaic power generation system |
| CN203102687U (en) * | 2012-12-26 | 2013-07-31 | 浙江大学 | Demonstration and display teaching device for soil engineering centrifugal simulation technology test |
-
2012
- 2012-12-26 CN CN2012105733353A patent/CN103035155A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01250063A (en) * | 1988-03-30 | 1989-10-05 | Mitsubishi Heavy Ind Ltd | Servo valve for centrifugal soil testing device |
| JPH11194705A (en) * | 1997-12-26 | 1999-07-21 | Nishimatsu Constr Co Ltd | Method and device for deep circular pit model experimentation |
| JPH11296068A (en) * | 1998-04-07 | 1999-10-29 | Tokyu Constr Co Ltd | Device and method for sand fall |
| KR200461188Y1 (en) * | 2010-06-01 | 2012-06-26 | (주)미래세움 | The experience system for the understang of centrifugal force |
| CN102610146A (en) * | 2012-03-06 | 2012-07-25 | 江苏大学 | Teaching experiment platform of multifunctional photovoltaic power generation system |
| CN203102687U (en) * | 2012-12-26 | 2013-07-31 | 浙江大学 | Demonstration and display teaching device for soil engineering centrifugal simulation technology test |
Non-Patent Citations (4)
| Title |
|---|
| 冉光斌: "土工离心机及振动台发展综述", 《环境技术》, no. 03, 15 June 2007 (2007-06-15) * |
| 李元海等: "数字照相量测在砂土地基离心试验中的应用", 《岩土工程学报》, vol. 28, no. 03, 15 March 2006 (2006-03-15) * |
| 程永辉等: "长江科学院土工离心机的应用与发展", 《长江科学院学报》, vol. 28, no. 10, 31 October 2011 (2011-10-31) * |
| 贾普照: "稳态加速度模拟试验设备:离心机设计(7)", 《航天器环境工程》, vol. 27, no. 01, 28 February 2010 (2010-02-28) * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411551A (en) * | 2013-08-27 | 2013-11-27 | 西南交通大学 | Soil body sample tiny deformation imaging detecting device and method |
| CN104841575A (en) * | 2015-05-21 | 2015-08-19 | 中国工程物理研究院总体工程研究所 | Integrated rigid jib of dynamic centrifuge |
| CN104841575B (en) * | 2015-05-21 | 2017-09-19 | 中国工程物理研究院总体工程研究所 | The machine integrated rigid jib of dynamic centrifugal |
| CN104971829B (en) * | 2015-06-19 | 2018-04-10 | 山东省农作物种质资源中心 | A kind of portable PC R reaction tube special centrifugal machines |
| CN106841028A (en) * | 2017-02-21 | 2017-06-13 | 中国工程物理研究院总体工程研究所 | Double hanging baskets symmetrically fold arm centrifugal test device |
| CN108414731A (en) * | 2018-05-08 | 2018-08-17 | 中国工程物理研究院总体工程研究所 | The geotechnical centrifuge structure of single-layer layout |
| WO2020098203A1 (en) * | 2018-11-13 | 2020-05-22 | 浙江大学 | Data processing method used for supergravity geological structure physical simulation experiment |
| CN109967269A (en) * | 2019-04-30 | 2019-07-05 | 中国工程物理研究院总体工程研究所 | A kind of support of centrifuge pivoted arm and drive mechanism |
| CN111678717A (en) * | 2020-05-09 | 2020-09-18 | 中国飞机强度研究所 | Centrifugal test device |
| CN112781519A (en) * | 2021-01-20 | 2021-05-11 | 南京大学 | Physical simulation experiment device and method for rock ring structural deformation |
| CN114534930A (en) * | 2022-01-25 | 2022-05-27 | 浙江大学 | Multi-channel oil-water conveying device and method of arm type centrifugal machine |
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Application publication date: 20130410 |