CN202149827U - Impact model test device for interaction between lander and soil mass - Google Patents
Impact model test device for interaction between lander and soil mass Download PDFInfo
- Publication number
- CN202149827U CN202149827U CN201120252701U CN201120252701U CN202149827U CN 202149827 U CN202149827 U CN 202149827U CN 201120252701 U CN201120252701 U CN 201120252701U CN 201120252701 U CN201120252701 U CN 201120252701U CN 202149827 U CN202149827 U CN 202149827U
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- impact
- tube
- accelerometer
- crossbeam
- lander
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- 239000002689 soil Substances 0.000 title claims abstract description 42
- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 230000003993 interaction Effects 0.000 title claims abstract description 13
- 238000006073 displacement reaction Methods 0.000 claims abstract description 12
- 229920000742 Cotton Polymers 0.000 claims abstract description 11
- 239000011521 glass Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 238000011160 research Methods 0.000 description 7
- 230000003116 impacting effect Effects 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses an impact model test device for an interaction between a lander and a soil mass, comprising a crossbeam, a cotton thread, side columns, an upper crossbeam support, an impact cylinder, a lower crossbeam support, gliding guide rails, a computer, a signal processor, a soil groove, moving sliding rails and a displacement meter; wherein the crossbeam and the moving sliding rails are respectively fixed at tops and bottoms of the side columns, the displacement meter is fixedly connected to a center under the crossbeam, the upper crossbeam support and the lower crossbeam support are riveted to the side columns; the gliding guide rails are fixed by the upper crossbeam support and the lower crossbeam support; the impact cylinder is arranged on the gliding guide rails and stabilized through tensioning of the cotton thread; and the soil groove is arranged vertically below the impact cylinder. According to the impact model test device of the utility model, by controlling the height and the quality of weights, the soil mass can be impacted vertically with a predetermined impact rate and a predetermined impact quality, thus test parameters required by the impact can be measured conveniently in real time; and dynamic characteristics of the interaction in the impact process also can be reflected.
Description
Technical field
The utility model relates to a kind of because of the impacted object vertical impact soil body carries out the mechanics parameter test to its impact process, and is used to reflect the model test apparatus of soil and alluvium interaction kinematic behavior.
Background technology
At present, along with the mankind to space exploration technical research beyond the earth progressively deeply, increasingly high to the lander designing requirement, one have security, multi-functional lander is essential.Owing to receive the effect of soil body huge impact in the lander landing shock soil body process; For guaranteeing that inner exact instrument is not damaged; The choose reasonable touchdown area is pulled off a soft landing lander, and the measurement of lander being impacted the mechanical property of the soil body is the emphasis of model investigation.Both at home and abroad research soil is more with the structural interaction problem, shear action particularly, yet research vertical impact effect and be used to measure lander and the interactional impact test apparatus of the soil body is few.Strong ram be only exist with impact the similar industrial process that lands; But the former focuses on more how research carries out the reinforcing of building lot; And seldom consider the real-time mechanics influence that lander brings because of the percussive action that receives the soil body under the multiple different operating modes, the packing on momentum (comprising impact velocity and quality), impact energy, soil body top layer and thrust factors such as the degree of depth for example.
The utility model content
The purpose of the utility model is the deficiency to prior art, and a kind of lander and soil body interaction impulsive model test unit are provided.
The purpose of the utility model realizes through following technical scheme: a kind of lander and soil body interaction impulsive model test unit, and it comprises: crossbeam, cotton thread, side column, entablature support, impact tube, sill support, downslide guide rail, computing machine, signal processor, soil box, shifting sledge and displacement meter; Wherein, said crossbeam and shifting sledge are separately fixed at the top and the bottom of side column, and the affixed displacement meter in crossbeam center, below, entablature support and the sill support is riveted on side column; The downslide guide rail supports and the sill support fixation through entablature; Impact tube and be mounted on the downslide guide rail, and stable through cotton thread stretch-draw; Soil box places and impacts under the tube; Signal processor links to each other with computing machine.
Further, the sidewall of said soil box is processed by organic glass.
Further, said impact tube comprises: downslide slide block, counterweight counterweight, axle power meter, first accelerometer, second accelerometer and impact foot pad; Wherein, the downslide slide block is fixed in and impacts outside the tube cylindrical wall, and the counterweight counterweight places in the impact tube cylindrical wall and is fixed in the impact tube bottom.Axle power meter is affixed on and impacts on the tube jack-post, and first accelerometer and second accelerometer stick on the foot pad, and axle power meter, first accelerometer all link to each other with signal processor with second accelerometer.
The beneficial effect of the utility model is that the utility model reaches the predetermined impact speed and the impact mass vertical impact soil body through control height and counterweight quality simply, the convenient required test parameters of impact that records in real time; Not only satisfy the model test conditional request, and can record in real time that impacted object comprises a power in impacting transient process, acceleration and thrust important mechanics parameter such as the soil body degree of depth, reflection impact process interaction kinematic behavior.This test unit has been used to gather the kinetic parameter test of vertical impact dynamic process, and is bearing the scientific research research project, and space flight unit provides valuable test data for scientific research.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the test unit longitudinal diagram of the utility model.
Fig. 2 is that structural map is amplified in the longitudinal profile of impacting tube among Fig. 1.
Fig. 3 is the process of the test control flow chart.
Among the figure, crossbeam 1, cotton thread 2, side column 3, entablature support 4, impact tube 5, sill supports 6, downslide guide rail 7, computing machine 8, signal processor 9, soil box 10, test soil 11, shifting sledge 12, displacement meter 13; Downslide slide block 14, increase the weight of counterweight 15, axle power meter 16, first accelerometer 17, second accelerometer 18.
Embodiment
Specify the utility model according to accompanying drawing below, it is more obvious that purpose of the utility model and effect will become.
As shown in Figure 1, the utility model lander and soil body interaction impulsive model test unit comprise: crossbeam 1, cotton thread 2, side column 3, entablature support 4, impact tube 5, sill support 6, downslide guide rail 7, computing machine 8, signal processor 9, soil box 10, shifting sledge 12, displacement meter 13.
Wherein, crossbeam 1 and shifting sledge 12 are separately fixed at the top and the bottom of side column 3, and the bulk testing device frame is fixing with side column 3 through crossbeam 1, can integral body move axially through shifting sledge 12, and once banketing can be through the many group test of mobile device measurement.The affixed displacement meter 13 in center, crossbeam 1 below, lower and upper cross-member support 4,6 and are riveted on side column 3.Downslide guide rail 7 supports 4,6 through lower and upper cross-member and fixes, and guarantees that through the length of regulating lower and upper cross-member support 4,6 spacing of downslide guide rail 7 is consistent.Impact tube 5 and be mounted on the downslide guide rail 7, and stable through cotton thread 2 stretch-draw.The soil box 10 that tamps test soil 11 is put in and impacts under the tube 5, and sidewall is processed by organic glass, has both guaranteed soil box intensity, also has stronger visuality.Through the mark line that is decorated with at the soil box sidewall, be able to control the relative compaction of the soil body and the process of banketing.
As shown in Figure 2, impact tube 5 longitudinal profiles and amplify a structural map, comprising: downslide slide block 14, counterweight counterweight 15, axle power meter 16, first accelerometer 17, second accelerometer 18, impact foot pad 19.
Wherein, be fixed in the downslide slide block 14 that impacts barrel and impact the motion of tube vertical through 7 controls of downslide slide rail.Impact the interior counterweight counterweight 15 of placing of tube, be used for regulating and impact the tube gross mass, and pass through bolt in impacting a tube end.Axle power meter 16 is affixed on and impacts on the tube jack-post; When being hit, impact tube 5 does the time spent; Be used to measure foot and fill up 19 suffered dynamic shaft power, accelerometer 17,18 sticks on the foot pad 19 through 502 solid gums, is used to measure the impact tube and receives the soil body to do the variation of time spent impact tube acceleration.Axle power meter 16, first accelerometer 17 all link to each other with signal processor 9 with second accelerometer 18, and signal processor 9 links to each other with computing machine.Handle through 9 pairs of axle power of signal processor among Fig. 1 meter 16 and accelerometer 17, eighteen data, can obtain impacting the real-time demonstration of the suffered axle of tube power, speed, displacement, acceleration.
As shown in Figure 3, process of the test is following.
1, bankets according to testing requirements;
2, connect each data channel;
3, turn-on data acquisition system;
4, check each normal operation of sensor;
5, will impact tube and be promoted to specified altitude assignment;
6, cut off cotton thread, realize instantaneous relase;
7, shutdown system, and analyze the mechanics data of preserving.
The course of work of the utility model is following: will test soil 11 and be filled in the soil box by testing requirements (packing, the depth of fill), through bobbing machine with plank is closely knit or levelling.To impact tube 5 and be promoted to specified altitude assignment, cut off cotton thread 2, realize instantaneous relase, and make impact tube 5 impact the test soil 11 that is equipped with in the soil box 10 along a smooth downslide guide rail vertical.Owing to receive percussive action, be installed in the sensor internal foil gauge generation deformation of impacting in the tube 5, the change of resistance causes the variation of voltage.The voltage signal that changes (include a power, acceleration and be fixed in the displacement that the displacement meter on the crossbeam 1 is measured) reaches signal processor 9 through data acquisition channel, and the result who is obtained is gathered, preserves, changes and show in real time through computing machine 8.
Claims (3)
1. lander and soil body interaction impulsive model test unit; It is characterized in that it comprises: crossbeam (1), cotton thread (2), side column (3), entablature support (4), impact tube (5), sill supports (6), downslide guide rail (7), computing machine (8), signal processor (9), soil box (10), shifting sledge (12) and displacement meter (13); Wherein, said crossbeam (1) and shifting sledge (12) are separately fixed at the top and the bottom of side column (3), crossbeam (1) the below affixed displacement meter in center (13), and entablature supports (4) and sill support (6) is riveted on side column (3); Downslide guide rail (7) supports (4) through entablature and sill support (6) is fixing; Impact tube (5) and be mounted on the downslide guide rail (7), and stable through cotton thread (2) stretch-draw; Soil box (10) places and impacts under the tube (5); Impact tube (5) and link to each other with signal processor (9), signal processor (9) links to each other with computing machine (8).
2. according to said lander of claim 1 and soil body interaction impulsive model test unit, it is characterized in that the sidewall of said soil box (10) is processed by organic glass.
3. according to said lander of claim 1 and soil body interaction impulsive model test unit; It is characterized in that said impact tube (5) comprising: downslide slide block (14), counterweight counterweight (15), axle power meter (16), first accelerometer (17), second accelerometer (18) and impact foot pad (19); Wherein, downslide slide block (14) is fixed in and impacts outside tube (5) cylindrical wall, and counterweight counterweight (15) places to impact in tube (5) cylindrical wall and be fixed in and impacts tube (5) bottom; Axle power meter (16) is affixed on and impacts on tube (5) jack-post; First accelerometer (17) and second accelerometer (18) stick on the sufficient pad (19), and axle power meter (16), first accelerometer (17) all link to each other with signal processor (9) with second accelerometer (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120252701U CN202149827U (en) | 2011-07-18 | 2011-07-18 | Impact model test device for interaction between lander and soil mass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120252701U CN202149827U (en) | 2011-07-18 | 2011-07-18 | Impact model test device for interaction between lander and soil mass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202149827U true CN202149827U (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120252701U Expired - Lifetime CN202149827U (en) | 2011-07-18 | 2011-07-18 | Impact model test device for interaction between lander and soil mass |
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| Country | Link |
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| CN (1) | CN202149827U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288347A (en) * | 2011-07-18 | 2011-12-21 | 浙江大学 | Testing device for interactive impact model of lander and soil body |
| CN103174137A (en) * | 2013-03-29 | 2013-06-26 | 哈尔滨工业大学 | Active anchoring mechanism with two-time drive function |
| CN106781831A (en) * | 2016-12-29 | 2017-05-31 | 北京空间机电研究所 | A kind of lunar surface landing shock analogue experiment installation |
-
2011
- 2011-07-18 CN CN201120252701U patent/CN202149827U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288347A (en) * | 2011-07-18 | 2011-12-21 | 浙江大学 | Testing device for interactive impact model of lander and soil body |
| CN102288347B (en) * | 2011-07-18 | 2013-07-31 | 浙江大学 | Testing device for interactive impact model of lander and soil body |
| CN103174137A (en) * | 2013-03-29 | 2013-06-26 | 哈尔滨工业大学 | Active anchoring mechanism with two-time drive function |
| CN106781831A (en) * | 2016-12-29 | 2017-05-31 | 北京空间机电研究所 | A kind of lunar surface landing shock analogue experiment installation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120222 Effective date of abandoning: 20130731 |
|
| RGAV | Abandon patent right to avoid regrant |