CN105954122A - Apparatus for testing performance of construction film structure under condition of simulated rainstorm impact - Google Patents
Apparatus for testing performance of construction film structure under condition of simulated rainstorm impact Download PDFInfo
- Publication number
- CN105954122A CN105954122A CN201610255150.6A CN201610255150A CN105954122A CN 105954122 A CN105954122 A CN 105954122A CN 201610255150 A CN201610255150 A CN 201610255150A CN 105954122 A CN105954122 A CN 105954122A
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- thin film
- threaded rod
- gauze screen
- film
- rainfall
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Links
- 238000010276 construction Methods 0.000 title abstract description 4
- 238000004088 simulation Methods 0.000 claims abstract description 10
- 239000010409 thin film Substances 0.000 claims description 66
- 239000004744 fabric Substances 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 238000006073 displacement reaction Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 20
- 239000010408 film Substances 0.000 claims description 17
- 239000012528 membrane Substances 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 241000283690 Bos taurus Species 0.000 claims description 2
- 210000003141 lower extremity Anatomy 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 238000007405 data analysis Methods 0.000 abstract 1
- 239000004035 construction material Substances 0.000 description 2
- 238000002372 labelling Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0033—Weight
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
Abstract
The invention provides an apparatus for testing the performance of a construction film structure under the condition of simulated rainstorm impact. The apparatus mainly comprises a cross film tensioning device, an artificial rainfall simulation device and a data acquisition system. The construction film is strained by the cross film tensioning device; the artificial rainfall simulation device allows rain drops to drip onto the film; the data acquisition system is used for measuring vibration of the film under impact by the rain drops; and dynamic response of the film under simulated rainstorm impact is researched through data analysis. The apparatus provided by the invention is simple in testing principles and convenient in operation and dismounting and can control the size of the rain drops according design demands in the process of testing.
Description
Technical field
The present invention relates to the field tests of building membrane material.
Background technology
Thin-film material is a kind of emerging construction material, along with increasing membrane structures
Occurring, it is " the after brick, stone, concrete, steel and timber that building film material has been recognized
Six kinds of construction materials ".It is most widely used a kind of building film in building field jacking membrane structure
Structural system, its rigidity is realized by pretension, for the reality of thin film in control structure
Pretension is consistent with design load, prevents the adverse effect that thin film fold is lax and shakes wind,
Reducing engineering accident, the detection of thin film pretension is just particularly important.It addition, thin film exists
Wind, rain, the impact of hail are descended and are easy to vibrate, in order to ensure building safety and
Normal construction, and the correct design of membrane structure, research thin film is under this impact load
Power response procedure is then significant.
Summary of the invention
It is an object of the invention to provide a kind of device for test architecture thin film mechanical property with
And the dynamic response of research thin film.
Employed technical scheme comprise that such for realizing the object of the invention, a kind of test architecture
The device of the membrane structure simulation heavy rain lower performance of impact, including cross shaped membrane material tensioning equipment,
Artificially-simulated rainfall device and data collecting system.
Described film material tensioning equipment include thin film, fixture, digital display strain gauge, miniature bracket,
Threaded rod and supporting frame.The upper surface of support frame as described above is cross-shape frame, this cross
Four ends of shape framework are provided with miniature bracket.Have on described miniature bracket for screw thread
The through hole that bar passes.
Described thin film be shaped as cross.Four limits of described thin film are respectively by a fixture
Fixing, each fixture correspondence connects a threaded rod.Arrange between described fixture and threaded rod
There is a digital display strain gauge.Every threaded rod correspondence penetrates the through hole of miniature bracket and screws in spiral shell
Female fastening.By adjust threaded rod penetrate length, thin film is applied the pretension of certain definite value,
Keep the center of thin film and the center superposition of cross-shape frame simultaneously.
Described artificially-simulated rainfall device includes water-supply-pipe, shower nozzle, rainfall bracing frame, control
Device and water delivery power source.It is provided with gauze screen and waterproof cloth on described rainfall bracing frame.Institute
Stating waterproof cloth and be positioned at the top of thin film, described gauze screen is positioned at the top of waterproof cloth.Institute
The projected area stating gauze screen and waterproof cloth in the vertical direction is all higher than the area of thin film.
One end of described water-supply-pipe connects water delivery power source, and the other end connects shower nozzle.Described spray
Head is fixed on rainfall bracing frame.Described shower nozzle is positioned at the top of gauze screen, and in vertically side
Projection upwards is in the center of thin film.The water delivery of described controller regulation water delivery power source is moved
Power.
Described data collecting system includes laser displacement sensor and computer.Described laser position
Displacement sensor is placed on the lower section of thin film, and is connected with computer by data wire.
Use a kind of test architecture membrane structure lower property of simulation heavy rain impact that said apparatus is carried out
The method of energy, comprises the following steps:
1) film material tensioning equipment is placed on horizontal base plane, and smooths by level indicator.
2) four limits of thin film to be tested are fixed by fixture respectively, be connected with outside described fixture
Digital display strain gauge, is connected with threaded rod outside described digital display strain gauge.Then threaded rod penetrates micro-
The through hole of type bracket also screws in nut.
3) nut on rotary screwing thread bar, makes thin film tentatively tighten, is further continued for screw on nut,
Gradually regulation threaded rod is through the length of through hole on miniature bracket so that thin film and film material stretch-draw
The cross-shape frame geometry centering of device upper end.
4) rainfall bracing frame is placed on the position vertically overlapped with film material tensioning equipment geometric center
Put, the two of waterproof cloth angles are fixed on two vertical supporting bars of rainfall bracing frame
On, and be positioned at above thin film.Two other angle of described waterproof cloth ties a rope respectively.
5) gauze screen is fixed on rainfall bracing frame, and is positioned at above thin film.Described wire gauze
The geometric center of net overlaps on vertical curve with the geometric center of film material tensioning equipment.
6) shower nozzle is fixed on the top of gauze screen geometric center, and described shower nozzle is with water-supply-pipe even
Connecing, water-supply-pipe is connected with water delivery power source, and water delivery power source is connected with controller.
7) screw the nut on the threaded rod of four direction, observe the reading of digital display strain gauge,
Thin film is applied the pretension of F1 size.Stand a period of time afterwards, observe digital display type pulling force
The reading of meter, adjusting nut makes reading be maintained at F1 again, is repeated several times, until digital display
The reading of formula strain gauge keeps constant.
8) several characteristic points of random labelling on thin film, one laser of each Feature point correspondence
Displacement transducer；Each laser displacement sensor is connected with computer by wiring；These swash
Optical displacement sensor is fixed by support respectively and places the lower section with thin film；Each laser position
Displacement sensor and thin film in a distance, and are smoothed by level indicator, make at Laser emission pair
Accurate each characteristic point.
9) two ropes of pull-up waterproof cloth so that waterproof cloth is horizontal above thin film.
Then opening controller, the power of regulation water delivery power source is 30%, starts to gather laser displacement
The data of sensor, are observed after being stablized by the rainwater of gauze screen, loosen rapidly waterproof cloth
Two ropes, after 90 seconds, close water delivery power source, two ropes of pull-up waterproof cloth,
After 30 seconds, stop gathering the data of laser displacement sensor.
10) regulation water delivery power source power is 60%, 90% respectively, repeats step 9).
11) pretension regulating thin film respectively is other definite values, F2, F3, F4 ..., weight
Multiple above step 8) to step 10).
12) described computer disposal analyze the displacement time course data of each characteristic point.
Further, the raindrop of the larger diameter sprayed than shower nozzle are got by gauze screen.
Further, the distance between described gauze screen and thin film meets raindrop at gravity and air
Maximum lowering speed can be reached under drag effect.
The present invention has the advantages that:
1, collect thin film displacement vibration data under heavy rain impacts, be used for studying thin film power
Response；
2, improve artificially-simulated rainfall device, increase simulated rainfall raindrop diameter；
3, this device to test principle is simple, convenient to operate, precision is high, convenient disassembly.
Accompanying drawing explanation
Fig. 1 is the structural representation of assay device of the present invention.
Fig. 2 is the structural representation of the film material tensioning equipment of the present invention.
Fig. 3 is the structural representation of the artificially-simulated rainfall device of the present invention.
In figure: thin film 1, fixture 2, digital display strain gauge 3, miniature bracket 4, threaded rod 5,
Supporting frame 6, water-supply-pipe 7, shower nozzle 8, rainfall bracing frame 9, gauze screen 901, waterproof
Cloth 902, controller 10, water delivery power source 11, laser displacement sensor 12, computer 13.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings, but should not
It is interpreted as that the above-mentioned subject area of the present invention is only limitted to following embodiment.Without departing from the present invention
In the case of stating technological thought, according to ordinary skill knowledge and customary means, make
Various replacements and change, all should include within the scope of the present invention.
Embodiment 1:
See Fig. 1 to Fig. 3, the lower performance of a kind of test architecture membrane structure simulation heavy rain impact
Device, including cross shaped membrane material tensioning equipment, artificially-simulated rainfall device and data acquisition system
System.
Described film material tensioning equipment includes thin film 1, fixture 2, digital display strain gauge 3, miniature cattle
Lower limb 4, threaded rod 5 and supporting frame 6.The upper surface of support frame as described above 6 is cross-shape frame,
Four ends of this cross-shape frame are provided with miniature bracket 4.Described miniature bracket 4
On have the through hole passed for threaded rod 5.
Described thin film 1 be shaped as cross.Four limits of described thin film 1 are respectively by one
Fixture 2 is fixed, and each fixture 2 is corresponding connects a threaded rod 5.Described fixture 2 and screw thread
A digital display strain gauge 3 it is provided with between bar 5.Every threaded rod 5 correspondence penetrates miniature bracket
The through hole of 4 also fastens with nut.By adjust threaded rod 5 penetrate length, to thin film 1
Apply the pretension of certain definite value, keep the center of thin film 1 and the center of cross-shape frame simultaneously
Overlap.I.e. every threaded rod 5 points to the center of thin film 1, and thin film 1 generation is drawn by they
Power is two pairs of counteracting forces, when threaded rod 5 is the longest through the through hole length of miniature bracket 4,
Thin film 1 just stretches tight the tightest, and the pulling force to thin film 1 is directly displayed at digital display strain gauge 3 simultaneously
On.
Described artificially-simulated rainfall device include water-supply-pipe 7, shower nozzle 8, rainfall bracing frame 9,
Controller 10 and water delivery power source 11.It is provided with gauze screen 901 on described rainfall bracing frame 9
With waterproof cloth 902.Described waterproof cloth 902 is positioned at the top of thin film 1, described gauze screen
901 tops being positioned at waterproof cloth 902.Described gauze screen 901 and waterproof cloth 902 are perpendicular
Nogata projected area upwards is all higher than the area of thin film 1.
One end of described water-supply-pipe 7 connects water delivery power source 11, and the other end connects shower nozzle 8.
Described shower nozzle 8 is fixed on rainfall bracing frame 9.Described shower nozzle 8 is positioned at gauze screen 901
Top, and the projection of in the vertical direction is in the center of thin film 1.Described controller 10 is adjusted
The water delivery power of joint water delivery power source 11.
Described data collecting system includes laser displacement sensor 12 and computer 13.Described sharp
Optical displacement sensor 12 is placed on the lower section of thin film 1, and by data wire and computer 13
Connect.
Embodiment 2:
Device as described in Example 1, the present embodiment provides a kind of test architecture membrane structure mould
The method intending the lower performance of heavy rain impact, comprises the following steps:
1) quiet test site is selected, preferably not by external wind and the space of influence of noise,
Film material tensioning equipment is placed on horizontal base plane, and smooths by level indicator；
2) being fixed by fixture 2 respectively on four limits of thin film 1 to be tested, these fixtures 2 are solid
It is scheduled on outside the frame of film material tensioning equipment.It is connected with digital display strain gauge 3 outside described fixture 2,
It is connected with threaded rod 5 outside described digital display strain gauge 3；Then threaded rod 5 penetrates miniature bracket 4
Through hole and screw in nut；
3) nut on rotary screwing thread bar 5, makes thin film 1 tentatively tighten, is further continued for screwing spiral shell
Mother, gradually regulation threaded rod 5 is through the length of through hole on miniature bracket 4 so that thin film 1
Cross-shape frame geometry centering with film material tensioning equipment upper end；
4) rainfall bracing frame 9 is placed on vertically overlaps with film material tensioning equipment geometric center
Position, two that two angles of waterproof cloth 902 are fixed on rainfall bracing frame 9 perpendicular
On support bar, height distance thin film 1 surface 2m；Other the two of described waterproof cloth 902
Individual angle ties a rope respectively, facilitates horizontal waterproof cloth 902 in latter acts；
5) gauze screen 901 is fixed on rainfall bracing frame 9, distance thin film 1 surface 8m,
Make maximum gauge 6mm raindrop can reach maximum drop speed under gravity with air drag effect
(diameter of the raindrop formed by gauze screen 901 is not more than 6mm to degree 9.8m/s, and general
Nature rainfall maximum raindrop diameter is 6mm, so the raindrop in this experimentation are all to reach
Arrive final speed).The geometric center of described gauze screen 901 and the geometry of film material tensioning equipment
Center overlaps on vertical curve；
6) the vertical 60cm that shower nozzle 8 is fixed on gauze screen 901 geometric center highly locates,
Described shower nozzle 8 is connected with water-supply-pipe 7, and water-supply-pipe 7 is connected with water delivery power source 11, water delivery
Power source 11 is connected with controller 10；
7) nut on the threaded rod 5 of four direction, the reading of observation digital display strain gauge 3 are screwed
Number, applies the pretension of F1 size, F1=1kN to thin film 1；Stand a period of time afterwards,
The reading of observation digital display type strain gauge 3, adjusting nut makes reading be maintained at 1kN again, instead
Plural number, until the reading of digital display type strain gauge 3 is held essentially constant；
8) six characteristic points C1, C2, C3, C4, C5, C6 of random labelling on thin film 1
(these six points should separate as far as possible, does not flocks together), simultaneously by six laser displacement sensings
Device 12 wiring is also connected with computer 13；Six described laser displacement sensors 12 lead to respectively
Cross support and fix and be positioned over the lower section of thin film 1；Each laser displacement sensor 12 and thin film
1 in a distance, and wherein distance meets the range of laser displacement sensor 12
10～24cm, and smooth by level indicator, make to be directed at Laser emission each characteristic point；
9) two ropes of pull-up waterproof cloth 902 so that waterproof cloth 902 is horizontal thin
Above film 1；Then opening controller 10, the power of regulation water delivery power source 11 is 30%,
Starting to gather the data of laser displacement sensor 12, implement simulated rainfall, wire gauze is passed through in observation
After the rainwater of net 901 is stable, loosen rapidly two ropes of waterproof cloth 902 so that rain
Water can impact the face of film material test specimen to be tested completely；After 90 seconds, close water delivery power source 11,
Two ropes of pull-up waterproof cloth 902 so that rainwater can not pass through waterproof cloth 902,30
After Miao, stop gathering the data of laser displacement sensor 12；
10) regulation water delivery power source 11 power is 60%, 90% respectively, repeats step 9)；
11) respectively regulation thin film 1 pretension be F2=2kN, F3=3kN, F4=4kN,
F5=5kN, F6=6kN, F7=7kN, F8=8kN, repeat above step 8) to step 10)；
12) described computer 13 processes and analyzes the displacement time course data of each characteristic point, from
And draw the thin film 1 dynamic response under simulation heavy rain impact.
Claims (3)
1. a device for the lower performance of test architecture membrane structure simulation heavy rain impact, its feature
It is: include cross shaped membrane material tensioning equipment, artificially-simulated rainfall device and data acquisition system
System；
Described film material tensioning equipment include thin film (1), fixture (2), digital display strain gauge (3),
Miniature bracket (4), threaded rod (5) and supporting frame (6)；Support frame as described above (6)
Upper surface is cross-shape frame, and four ends of this cross-shape frame are provided with miniature cattle
Lower limb (4)；The through hole passed for threaded rod (5) is had on described miniature bracket (4)；
Described thin film (1) be shaped as cross；Four limits of described thin film (1) lead to respectively
Crossing a fixture (2) to fix, each fixture (2) is corresponding connects a threaded rod (5)；
A digital display strain gauge (3) it is provided with between described fixture (2) and threaded rod (5)；Often
Root threaded rod (5) correspondence penetrates the through hole of miniature bracket (4) and screws in nut fastening；Logical
That crosses adjustment threaded rod (5) penetrates length, and thin film (1) applies the pretension of certain definite value,
Keep the center of thin film (1) and the center superposition of cross-shape frame simultaneously；
Described artificially-simulated rainfall device includes that water-supply-pipe (7), shower nozzle (8), rainfall support
Frame (9), controller (10) and water delivery power source (11)；Described rainfall bracing frame (9)
On be provided with gauze screen (901) and waterproof cloth (902)；Described waterproof cloth (902)
Being positioned at the top of thin film (1), described gauze screen (901) is positioned at waterproof cloth (902)
Top；Described gauze screen (901) and the projection of waterproof cloth (902) in the vertical direction
Area is all higher than the area of thin film (1)；
One end of described water-supply-pipe (7) connects water delivery power source (11), and the other end connects spray
Head (8)；Described shower nozzle (8) is fixed on rainfall bracing frame (9)；Described shower nozzle (8)
It is positioned at the top of gauze screen (901), and the projection of in the vertical direction is in thin film (1)
Center；The water delivery power of described controller (10) regulation water delivery power source (11)；
Described data collecting system includes laser displacement sensor (12) and computer (13)；
Described laser displacement sensor (12) is placed on the lower section of thin film (1), and passes through data wire
It is connected with computer (13).
A kind of test architecture membrane structure simulation heavy rain impact the most according to claim 1
The device of lower performance, it is characterised in that: got than shower nozzle (8) by gauze screen (901)
The raindrop of the larger diameter of ejection.
A kind of test architecture membrane structure simulation heavy rain impact the most according to claim 1
The device of lower performance, it is characterised in that: between described gauze screen (901) and thin film (1)
Distance meet raindrop and can reach maximum lowering speed under gravity and air drag effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610255150.6A CN105954122B (en) | 2016-04-21 | 2016-04-21 | A kind of test architecture membrane structure simulation heavy rain impacts the device of lower performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610255150.6A CN105954122B (en) | 2016-04-21 | 2016-04-21 | A kind of test architecture membrane structure simulation heavy rain impacts the device of lower performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105954122A true CN105954122A (en) | 2016-09-21 |
| CN105954122B CN105954122B (en) | 2018-12-28 |
Family
ID=56914762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610255150.6A Active CN105954122B (en) | 2016-04-21 | 2016-04-21 | A kind of test architecture membrane structure simulation heavy rain impacts the device of lower performance |
Country Status (1)
| Country | Link |
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| CN (1) | CN105954122B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340178A (en) * | 2017-07-24 | 2017-11-10 | 中国民用航空飞行学院 | A kind of single drop hits fabric mechanism research experiment device |
| CN110455488A (en) * | 2019-09-12 | 2019-11-15 | 广州大学 | The measuring device and method of the hail impact load of membrane structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1493854A (en) * | 2003-09-11 | 2004-05-05 | 中国科学院力学研究所 | Portable rainfall imitation device |
| CN101776511A (en) * | 2010-01-29 | 2010-07-14 | 天津大学 | Micro/nano film impact mechanical performance drop hammer measuring device |
| CN201556340U (en) * | 2009-03-09 | 2010-08-18 | 农业部环境保护科研监测所 | Movable type adjustable rainfall simulator |
| CN201637637U (en) * | 2010-04-23 | 2010-11-17 | 重庆大学 | Cross-shaped screw type film tensioning device |
| CN202305525U (en) * | 2011-10-20 | 2012-07-04 | 辽宁省水土保持研究所 | Vibrating manual simulation raining device capable of controlling rainfall capacity |
| CN104034473A (en) * | 2014-06-26 | 2014-09-10 | 成都理工大学 | Measuring method and device for pretension of membrane structure |
| CN105092818A (en) * | 2015-07-31 | 2015-11-25 | 石家庄铁道大学 | Artificial rainfall prefabricated model test system and method |
-
2016
- 2016-04-21 CN CN201610255150.6A patent/CN105954122B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1493854A (en) * | 2003-09-11 | 2004-05-05 | 中国科学院力学研究所 | Portable rainfall imitation device |
| CN201556340U (en) * | 2009-03-09 | 2010-08-18 | 农业部环境保护科研监测所 | Movable type adjustable rainfall simulator |
| CN101776511A (en) * | 2010-01-29 | 2010-07-14 | 天津大学 | Micro/nano film impact mechanical performance drop hammer measuring device |
| CN201637637U (en) * | 2010-04-23 | 2010-11-17 | 重庆大学 | Cross-shaped screw type film tensioning device |
| CN202305525U (en) * | 2011-10-20 | 2012-07-04 | 辽宁省水土保持研究所 | Vibrating manual simulation raining device capable of controlling rainfall capacity |
| CN104034473A (en) * | 2014-06-26 | 2014-09-10 | 成都理工大学 | Measuring method and device for pretension of membrane structure |
| CN105092818A (en) * | 2015-07-31 | 2015-11-25 | 石家庄铁道大学 | Artificial rainfall prefabricated model test system and method |
Non-Patent Citations (1)
| Title |
|---|
| 宋维举: "《中国优秀硕士学位论文全文数据库 工程科技II辑》", 15 April 2012 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340178A (en) * | 2017-07-24 | 2017-11-10 | 中国民用航空飞行学院 | A kind of single drop hits fabric mechanism research experiment device |
| CN110455488A (en) * | 2019-09-12 | 2019-11-15 | 广州大学 | The measuring device and method of the hail impact load of membrane structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105954122B (en) | 2018-12-28 |
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