CN101769838B - Dynamic impact loading test bed and test system thereof - Google Patents
Dynamic impact loading test bed and test system thereof Download PDFInfo
- Publication number
- CN101769838B CN101769838B CN201010109465A CN201010109465A CN101769838B CN 101769838 B CN101769838 B CN 101769838B CN 201010109465 A CN201010109465 A CN 201010109465A CN 201010109465 A CN201010109465 A CN 201010109465A CN 101769838 B CN101769838 B CN 101769838B
- Authority
- CN
- China
- Prior art keywords
- extension spring
- unit
- impact
- pulley
- transverse slat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention discloses dynamic impact loading test bed and a test system thereof. The dynamic impact loading test bed comprises an impact unit, a lifting unit and a test piece plummer, wherein the impact unit is carried on a fixed rack and is connected with a tension spring unit; and the tension spring unit can exert an elastic restoring force on the impact unit. The dynamic impact loading test system comprises the dynamic impact loading test bed and tests the mechanical property of a test piece to be tested by connecting with a computer. The dynamic impact loading test bed and the system exert extra downward elastic restoring force on the impact unit by the tension spring unit, can still obtain higher impact loading speed under the precondition of realizing device miniaturization and has the functions and advantages of high energy conversion rate, little noise pollution, stable emission, easy speed regulation, convenient test repetition, and the like.
Description
Technical field
The present invention relates to the testing equipment of structural deformation and Experiments of Machanics technical field, relate in particular to a kind of dynamic impact loading test bed and pilot system.
Background technology
In the engineering practical application, many construction materials and structure all are faced with the effect of shock load, and the material that bears these load can be with high rate of strain distortion.A large amount of experimental results show that under different rate of strain, the mechanical property of material is often different.Therefore, the dynamic characteristics of material has great significance to engineering structure security, reliability design.
At present, the testing equipment that when the mechanical property of research material under high rate of strain, often adopts is the drop hammer type testing machine.Its ultimate principle is: discharge a weight from eminence, test specimen to be tested is hit in the weight free-falling.This type of device structure is simple, and is easy and simple to handle.But for bigger impact speed is provided, testing equipment need satisfy certain altitude, and common drop hammer type testing machine height is 3 to 5 meters, and equipment volume is huge, is limited by the working environment of testing machine to a certain extent.In addition, when measuring the mechanical property of material for test under high rate of strain, split hopkinson press bar (being called for short SHPB) also is one of more widely used technology.But SHPB equipment is many based on Pneumatic catapult or light-gas gun emitter, and this appliance arrangement is comparatively expensive, and energy transformation ratio is low in the experimentation, the emission noise pollution is big, experimental cost is high.
At present, mostly the existing both at home and abroad equipment that test specimen is impacted loading is the drop hammer type test unit.Like number of patent application: disclosed among the CN01205945.5 to the guiding problem of dropping hammer and designed petroleum casing pipe protection ring drop hammer impact testing machine; Number of patent application: disclosed among the CN200720084399.1 to the problem of existing drop hammer impact testing machine poor safety performance and improved.Yet in the above design, executing the weight that carries all is to fall with the form near freely falling body, fails to solve the huge problem of equipment volume.Therefore the impact testing machine that how to provide the less while of a kind of volume not sacrifice impact speed again is a problem demanding prompt solution.
Summary of the invention
The object of the invention is exactly to be to provide a kind of volume less and the dynamic impact loading test bed of bigger impact speed still can be provided, and it has following technical scheme:
A kind of dynamic impact loading test bed, comprise the impact unit, lift unit and the test specimen plummer that are carried on the fixed mount, wherein, said impact unit is connected with the extension spring unit, and said extension spring unit can apply elastic-restoring force in said impact unit.
Preferably, said extension spring unit comprises stay cord, first pulley and extension spring assembly; Wherein, said extension spring assembly is fixed in the top of said fixed mount; Said first pulley be positioned said extension spring assembly under, be installed between the said upper and lower of said fixed mount; Said stay cord is walked around said first pulley, and an end links to each other with said impact unit, and the other end links to each other with the stretching end of said extension spring assembly.
Preferably, said stay cord is two, is connected with a said extension spring assembly respectively, and is symmetricly set on the both sides of said impact unit through each self-corresponding said first pulley.
Said extension spring assembly can comprise a plurality of extension springs and web joint, and said web joint is provided with the extension spring connecting hole, and said extension spring laterally arranges.
Preferably, said every group of extension spring assembly full and down is configured to 5 extension springs, and the range of extension spring is 1.2 meters, can select extension spring quantity and stroke by demand, thereby is convenient to regulate impact speed.
Said impact unit can be T set hammer shape thing, and it comprises hammer body and perpendicular to the tup of said hammer body, the end of said hammer body both sides is connected with the stay cord of said extension spring unit.
Can be coated with nylon jacket on the said hammer body, said nylon jacket is used to reduce friction and play position-limiting action when said weight falls.
Preferably, said lift unit can comprise locking part, rope and lift assembly that said locking part is connected with said impact unit with the mode that can unclamp, lock; The two ends of said rope are connected with the said assembly that lifts with said locking part respectively, and said locking part is provided with and can makes said impact unit break away from the release-push of said locking part.
Preferably, said release-push has formed releasably to engage with the latch cooperation on said hammer body top and has been connected.
The said assembly that lifts can comprise the ratchet and second pulley that is fixed on the said fixed mount; One end of said rope twines and is arranged on the said ratchet, and the other end changes direction through said second pulley and is connected to said locking part; Can also be provided with driving pawl on the said ratchet twining the rocking arm of said rope, thereby be convenient to revision test.
Preferably, the said assembly that lifts also includes safety plug, and this safety plug is provided in and can keeps said ratchet forward operation when said impact unit promotes, and when pressing said safety plug, said ratchet can oppositely be refunded.
Preferably; But the upper plate of said fixed mount the portion on it on the throne and transverse slat of up-down adjustment is installed between the test specimen plummer of its underpart; Said transverse slat is provided with spacing montant, and said upper plate is passed in the upper end of said spacing montant, and the lower end is fixed on the said transverse slat; The body of said impact unit is set on the said spacing montant, can be between said upper plate and said transverse slat vertically moves, and also is provided with the opening that the strike portion that supplies said impact unit is passed on the said transverse slat; Said first pulley is arranged on the said transverse slat; Said extension spring assembly is fixed in the lower surface of said upper plate; Said stay cord twines said first pulley, and an end of said stay cord links to each other with the lower surface of the body of said impact unit, and the other end links to each other with the stretching end of said extension spring assembly; Said second pulley is two, is separately positioned on the middle part of said upper plate and near the end of said ratchet; One end of said rope twines and is arranged on the said ratchet, and the other end changes direction through said second pulley and is connected to said locking part.
Said transverse slat is located to be provided with bolster under the body of said impact unit.
Said stay cord and said rope can be nylon rope.
The invention allows for a kind of dynamic impulsion load test system; It is through connecting the mechanical property that computing machine is tested test specimen to be measured; Comprise dynamic impact loading test bed, the shock load signal pickup assembly that adopts aforesaid technical scheme and be arranged in the said test specimen plummer, be positioned at whole impact unit under force transducer, this force transducer links to each other with said computing machine via said shock load signal pickup assembly.
Dynamic impact loading test bed and pilot system of the present invention apply extra downward elastic-restoring force through utilizing impact unit, extension spring unit; Under the prerequisite of implement device miniaturization; Still obtain than the HI high impact loading velocity, have the energy transformation ratio height simultaneously, noise pollution is little, emission is stable, be prone to speed governing, be convenient to function and characteristics such as revision test.
Description of drawings
Fig. 1 is the dynamic impact loading test bed one-piece construction synoptic diagram of one specific embodiment according to the present invention.
Fig. 2 A is the synoptic diagram of transverse slat in dynamic impact loading test bed shown in Figure 1.
Fig. 2 B is the synoptic diagram of locking part in dynamic impact loading test bed shown in Figure 1.
Fig. 3 is the synoptic diagram of test specimen plummer in dynamic impact loading test bed shown in Figure 1.
Embodiment
Below in conjunction with accompanying drawing, specific embodiments of the invention is done further to specify.For the person of ordinary skill in the field, from detailed description of the invention, above-mentioned purpose of the present invention, feature and advantage will be obvious.
With reference to Fig. 1, be the dynamic impact loading test bed one-piece construction synoptic diagram of one specific embodiment according to the present invention.As shown in the figure, dynamic impact loading test bed 100 comprise impact unit, extension spring unit, lift unit and the test specimen plummer that is carried on the fixed mount.
In Fig. 1, said impact unit is a T type weight, comprises hammer body 5 that forms body and the tup 14 that forms strike portion.Be coated with nylon jacket on the hammer body 5, when said weight falls, be used to reduce with below said " worker " font regulate the friction of transverse slat 6 and play position-limiting action.
Fixed mount provides support to whole dynamic impact loading test bed 100 and supports, and is the assurance of testing table 100 securities, and it comprises upper plate 1, transverse slat 6, two outer columns 8, bases 18 and is positioned at the leveling bolt 19 on 18 4 jiaos of the bases.The upper plate 1 here, transverse slat 6 are respectively " worker " font upper plate, " worker " font transverse slat.But will be appreciated that upper plate 1 is not limited to " worker " font plate with transverse slat 6, so long as the plate that can provide support and support all can.Base 18 plays stable whole test platform 100, and it is connected with " worker " font upper plate 1 through two outer columns 8; The leveling bolt 19 here plays the leveling effect, but the hydrous water leveling ruler carries out leveling.
Fixed mount " worker " but font upper plate 1 and " worker " font that up-down adjustment is installed between the test specimen plummer of its underpart are regulated transverse slat 6, the two ends that " worker " font is regulated transverse slat 6 are removably mounted on respectively on two outer columns 8; On " worker " font adjusting transverse slat 6, also be provided with vertical parallel spacing montant 12, " worker " font upper plate 1 is passed in the upper end of spacing montant 12, and the lower end is fixed on " worker " font and regulates on the transverse slat 6; Described " worker " font is regulated transverse slat 6 can drive spacing montant 12 up-down adjustment to adapt to the test specimen of differing heights; The end of hammer body 5 both sides is set on the spacing montant 12; Can regulate between the transverse slat 6 vertically mobile between " worker " font upper plate 1 and " worker " font along spacing montant 12; Said " worker " font is regulated on the transverse slat 6 and also is provided with an opening, clashes into test specimen through this opening when tup 14 moves.Reinforce screw rod 15 and be positioned at outer column 8 outsides, " worker " is somebody's turn to do in connection font is regulated transverse slat 6 and thereby base 18 plays reinforcement effect.
Continuation is with reference to Fig. 1, and the extension spring unit comprises two nylon withdrawal lines 11, two first pulleys 7, two extension spring web joints 10 and two groups of extension spring groups 9, has formed the symmetrical extension spring unit of two covers in the both sides of impact unit.
Said first pulley 7 is arranged on " worker " font and regulates on the transverse slat 6; Extension spring group 9 is fixed in the lower surface of " worker " font upper plate 1, and extension spring group 9 links to each other with extension spring web joint 10, and every group of extension spring group 9 comprises 5 extension springs; Said 5 extension springs laterally arrange; Avoid contact or winding between extension spring, extension spring web joint 10 is provided with and the corresponding extension spring connecting hole of extension spring quantity, can be according to the actual requirements; The stretching end of extension spring is taken off from the extension spring connecting hole and reduces the extension spring quantity that acts on weight, or the stretching end hook of the extension spring that will take off hangs in the extension spring connecting hole and increases the extension spring quantity that acts on weight; Stay cord 11 twines first pulley 7, and an end of stay cord 11 links to each other with the lower surface of the end of hammer body 5 both sides, and the other end links to each other with extension spring web joint 10.
Said lift unit comprises locking part 4, nylon rope 13 and constitutes ratchet 3, two second pulleys 7 ' that lift assembly and be arranged on that driving pawl 3 is to twine the rocking arm 2 of rope 13 on the ratchet 3 that rocking arm 2 provides power for ratchet 3 operations.Locking part 4 is connected with hammer body 5 with the mode that can unclamp, lock; The two ends of rope 13 are connected with ratchet 3 with locking part 4 respectively; Locking part 4 is provided with the release-push 40 that can make hammer body 5 release lock firmwares 4; Wherein, Locking part 4 can be any connected mode that the person of ordinary skill in the field adopts with the connected mode of hammer body 5, as long as it can realize that locking part 4 can be connected with hammer body 5 with the mode of locking, when operation release-push 40, hammer body 5 release lock firmwares 4 is got final product; For ratchet 3, alternatively, all can be used to constitute the lift unit among the present invention with the arbitrary element that twines rope 13 so long as can play driving.
Also can be provided with safety plug (not shown) on the ratchet 3; Any element and structure that the safety plug here can be expected for the person of ordinary skill in the field; Guarantee that ratchet 3 keeps the forward operation in the process that weight promotes as long as can realize said safety plug, press behind the safety plug ratchet 3 and can oppositely refund and get final product.
With reference to Fig. 2 A, be the synoptic diagram of transverse slat in dynamic impact loading test bed shown in Figure 1.Should " worker " font regulate on transverse slat 6, between two first pulleys 7, be positioned at said hammer body 5 under locate to be equipped with four rubber columns 60 that play buffer actions; To the impact of " worker " font adjusting transverse slat 6, improve the stability of testing table 100 when falling with the buffering weight.In Fig. 2 A; Come because locking part 4 breaks away from weight 5, the midway that can see the upper surface that is positioned at hammer body 5 is provided with and connects latch 51, the jack 41 that is provided with in conjunction with locking part 4 bottoms shown in Fig. 2 B; Connection latch 51 cooperates to have formed releasably to engage with socket 41 and is connected; Thereby be used for locking and discharge weight, when the release-push of pressing on the locking part 4 40, weight promptly is released.
With reference to Fig. 3, be the synoptic diagram of test specimen plummer in dynamic impact loading test bed shown in Figure 1.Described test specimen plummer comprises three-point bending lower clamp 16 and fixture support dish 17.Described three-point bending lower clamp 16 contains scale, can adjust the distance of two support ends according to demand; Fixture support dish 17 is used to support three-point bending lower clamp 16, and it is for containing circular concentric through hole round platform.Certainly; The dynamic impact loading test bed test specimen plummer that is not limited to adopt above-mentioned three-point bending lower clamp 16 and fixture support dish 17 formations of the present invention; Alternatively, can select for use any can carry with the device of clamping test pieces or element as the test specimen plummer.
Below in conjunction with Fig. 1-3 this dynamic impact loading test bed method of application of impact is described:
1. at first, place test specimen on three-point bending lower clamp 16;
2. adjust the height that " worker " font is regulated transverse slat 6 up and down according to the height of test specimen;
3. select tup 14 (hammer body and tup are dismountable) according to the size and the kind of test specimen with appropriate mass; Select extension spring group 9 with suitable stroke; And be adjusted into suitable extension spring quantity (dismounting or increase), according to the make an experiment assembling of platform of the annexation of above-mentioned each parts in dynamic impact loading test bed;
4. shake rocking arm 2; Hammer body 5 is twined by ratchet 3 through nylon rope 13 with tup 14 mentions; The extension spring group 9 that is fixed on " worker " font upper plate 1 this moment is passed through nylon withdrawal line 11 quilts to stretched; When hammer body 5 and tup 14 reach needed height, press the release-push 40 on the locking part 4, hammer body 5 and tup 14 give in self gravitation and extension spring under its effect of elastic-restoring force; Hurtle down along spacing montant 12 simultaneously, the open impact that tup 14 is regulated on the transverse slat 6 through " worker " font is positioned over the test specimen on the three-point bending lower clamp 16; 5 of hammer bodies are also spacing through four rubber columns, 60 bufferings.
5. if needed, repeating step 4.
This is dynamic impact loading test bed owing to adopted extension spring unit pulling impact unit that test specimen is applied the technology of impacting loading, and compact conformation has the characteristics of miniaturization; Whole device highly is about 1.5 meters, and width is about 60 centimetres, processes simple and convenient; With low cost; Be convenient to move, thereby expanded the impact speed in the finite space significantly, avoided the bigger present situation of existing drop-weight test device volume.This device stability is high, and the falling speed maximum of weight can reach 10m/s, realizes and satisfy the requirement of different impact loading velocities adjusting easily; This device requires low to the experiment place, reduced experimental cost; Weight in this device is backward down can not to be dropped or depart from, safe.
Simultaneously; In the shock load of the test material of reality; Can also include the above-mentioned dynamic impact loading test bed impulse test system that makes up based on above-mentioned; Only need pass through: in the fixture support dish that contains circular concentric through hole round platform, be provided with force transducer, above-mentioned force transducer links to each other with computing machine through the shock load signal pickup assembly.Above-mentioned force transducer can be commercially available S type cylinder force transducer; Above-mentioned shock load signal pickup assembly comprises dynamic strain indicator and sticks on the foil gauge on above-mentioned S type cylinder force transducer that above-mentioned foil gauge is converted into electric signal with the strain that shock load produces; The collection terminal of above-mentioned dynamic strain indicator links to each other with the electric bridge of said foil gauge, and its output terminal links to each other in computer.The dynamometric system that formation is set more than the process can carry out mass memory, based on the dynamic strain measurement technology, can be used for the real-time testing load data, thereby complete real-time shock load signal measurement and analysis platform are provided.This system can measure shock load fast, accurately and real-time, can carry out the test of dynamic mechanical to the fragility test specimen.
It should be noted that; The above is merely preferred embodiment of the present invention; Be not so limit scope of patent protection of the present invention, the present invention can also carry out the improvement of material and structure to the structure of above-mentioned various parts, or adopts the technical equivalents thing to replace; For example: change extension spring cell configuration and structure, quantity of change lift unit shape and structure, change extension spring and pulley or the like.So the equivalent structure that all utilizations instructions of the present invention and diagramatic content are done changes, or directly or indirectly apply to other correlative technology fields and all in like manner all be contained in the scope that the present invention contains.
Claims (6)
- One kind dynamic impact loading test bed; Comprise the impact unit, lift unit and the test specimen plummer that are carried on the fixed mount; It is characterized in that said impact unit is connected with the extension spring unit, said extension spring unit can apply elastic-restoring force in said impact unit; It comprises stay cord, first pulley and extension spring assembly, wherein:Said extension spring assembly is fixed in the top of said fixed mount;Said first pulley be positioned said extension spring assembly under;Said stay cord is walked around said first pulley, and an end links to each other with said impact unit, and the other end links to each other with the stretching end of said extension spring assembly.
- 2. according to claim 1 dynamic impact loading test bed, it is characterized in that said extension spring unit comprises 2 stay cords, 2 first pulleys and 2 cover extension spring assemblies; Symmetria bilateralis in said impact unit is arranged;Said extension spring assembly is fixed in the top of said fixed mount; Said extension spring assembly comprises a plurality of extension springs and a web joint, and said web joint is provided with and the corresponding extension spring connecting hole of extension spring quantity, and said extension spring laterally arranges;Said first pulley be positioned said extension spring assembly under;Said stay cord is walked around said first pulley, and an end links to each other with said impact unit, and the other end links to each other with said extension spring through said web joint.
- 3. according to claim 2 dynamic impact loading test bed, it is characterized in that,Said lift unit comprises locking part, rope and lifts assembly that said locking part is connected with said impact unit with the mode that can unclamp, lock;The two ends of said rope are connected with the said assembly that lifts with said locking part respectively;Said locking part is provided with and can makes said impact unit break away from the release-push of said locking part;The said assembly that lifts comprises the ratchet and second pulley that is fixed on the said fixed mount; One end of said rope twines and is arranged on the said ratchet, and the other end changes direction through said second pulley and is connected to said locking part; Also be provided with driving pawl on the said ratchet to twine the rocking arm of said rope.
- 4. according to claim 3 dynamic impact loading test bed, it is characterized in that,But the upper plate of said fixed mount the portion on it on the throne and transverse slat of up-down adjustment is installed between the test specimen plummer of its underpart,Said transverse slat is provided with spacing montant, and said upper plate is passed in the upper end of said spacing montant, and the lower end is fixed on the said transverse slat;The body of said impact unit is set on the said spacing montant, can be between said upper plate and said transverse slat vertically moves, and also is provided with the opening that the strike portion that supplies said impact unit is passed on the said transverse slat;Said first pulley is arranged on the said transverse slat, and said extension spring assembly is fixed in the lower surface of said upper plate;Said second pulley is two, is separately positioned on the middle part of said upper plate and near the end of said ratchet.
- 5. according to claim 4 dynamic impact loading test bed, it is characterized in that said transverse slat locates to be provided with bolster under said impact unit.
- 6. dynamic impulsion load test system; It is through connecting the mechanical property that computing machine is tested test specimen to be measured; It is characterized in that; This pilot system comprise among the claim 1-5 each described dynamic impact loading test bed, shock load signal pickup assembly and be arranged in the said test specimen plummer, be positioned at whole impact unit under force transducer, this force transducer links to each other with said computing machine via said shock load signal pickup assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010109465A CN101769838B (en) | 2010-02-08 | 2010-02-08 | Dynamic impact loading test bed and test system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010109465A CN101769838B (en) | 2010-02-08 | 2010-02-08 | Dynamic impact loading test bed and test system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101769838A CN101769838A (en) | 2010-07-07 |
| CN101769838B true CN101769838B (en) | 2012-10-10 |
Family
ID=42502834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010109465A Expired - Fee Related CN101769838B (en) | 2010-02-08 | 2010-02-08 | Dynamic impact loading test bed and test system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101769838B (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175136B (en) * | 2010-12-22 | 2014-06-11 | 天津大学 | Straight tube multi-axis ratchet wheel strain testing system and method |
| CN102156081B (en) * | 2011-03-24 | 2013-04-10 | 北京航空航天大学 | Impact loading mechanism |
| JP5926853B2 (en) * | 2012-03-31 | 2016-05-25 | 中国▲鉱▼▲業▼大学（北京） | Dynamic performance test system |
| CN103076147B (en) * | 2012-12-28 | 2015-06-10 | 三一重工股份有限公司 | Impact test device |
| CN104677586A (en) * | 2013-12-02 | 2015-06-03 | 承德市金建检测仪器有限公司 | Impact test device |
| CN103983307B (en) * | 2014-05-26 | 2016-08-24 | 上海交通大学 | A kind of little quality impact test test system of variable impact parameter |
| CN105759076B (en) * | 2016-03-09 | 2019-12-24 | 西北工业大学 | Strain type acceleration sensor with forging hammer striking force detection integrated structure |
| CN105865709B (en) * | 2016-06-22 | 2018-06-08 | 南京卓砾智测控技术有限公司 | A kind of Charpy wave pressure force snesor field calibration device |
| CN106124155B (en) * | 2016-08-31 | 2019-09-03 | 兹韦克测试技术（太仓）有限公司 | A kind of drop hammer impact testing machine |
| CN106950089B (en) * | 2017-03-30 | 2023-08-18 | 中国电力工程顾问集团中南电力设计院有限公司 | Automatic and manual hammering device and method for large compaction instrument |
| CN108133645B (en) * | 2017-12-18 | 2023-04-18 | 安徽工程大学 | Impact experiment device and method |
| CN108226028B (en) * | 2018-01-09 | 2020-11-03 | 中国工程物理研究院化工材料研究所 | Drop hammer type high-energy insensitive explosive friction sensitivity tester |
| CN110031290B (en) * | 2019-03-21 | 2021-11-02 | 东南大学 | Three-point bending-based reciprocating loading test piece clamp and test method |
| CN109991069B (en) * | 2019-04-22 | 2021-10-26 | 河南工业大学 | Counter-force pedestal manufacturing method and loading hole unit adjusting device |
| CN110530626A (en) * | 2019-09-25 | 2019-12-03 | 中国兵器工业第五九研究所 | A kind of kicker stress loading test device and method |
| CN110514541A (en) * | 2019-09-27 | 2019-11-29 | 广东正粤检测科技有限公司 | A kind of concrete strength inspection device and its detection method |
| CN113188927B (en) * | 2021-03-25 | 2022-07-29 | 河海大学 | Buried pressure pipeline impact power model test device and test method |
| CN113252476B (en) * | 2021-07-08 | 2021-09-17 | 山东科技职业学院 | non-Newtonian fluid impact resistance effect research device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0023167A1 (en) * | 1979-07-09 | 1981-01-28 | Société Anonyme FRANCE-ATLAS | Method and apparatus for the dynamic testing of piles |
| DD243626A3 (en) * | 1987-03-11 | Device for investigating the elastic properties of ceilings | ||
| CN2480829Y (en) * | 2001-09-07 | 2002-03-06 | 天津钢管公司 | Hammer drop impact tester for petroleum sleeve protective ring |
| US7370510B2 (en) * | 2006-03-17 | 2008-05-13 | Lucent Technologies Inc. | Shock apparatus |
| CN101354328A (en) * | 2007-07-27 | 2009-01-28 | 贝恩德·索恩 | Freely falling body detector for determining deformation coefficient of ground under specific impact loading |
| CN101443646A (en) * | 2006-05-16 | 2009-05-27 | 卢森特技术有限公司 | Shock and launch apparatus |
| CN201589740U (en) * | 2010-02-08 | 2010-09-22 | 北京理工大学 | Dynamic impact loading testing table and test system thereof |
-
2010
- 2010-02-08 CN CN201010109465A patent/CN101769838B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD243626A3 (en) * | 1987-03-11 | Device for investigating the elastic properties of ceilings | ||
| EP0023167A1 (en) * | 1979-07-09 | 1981-01-28 | Société Anonyme FRANCE-ATLAS | Method and apparatus for the dynamic testing of piles |
| CN2480829Y (en) * | 2001-09-07 | 2002-03-06 | 天津钢管公司 | Hammer drop impact tester for petroleum sleeve protective ring |
| US7370510B2 (en) * | 2006-03-17 | 2008-05-13 | Lucent Technologies Inc. | Shock apparatus |
| CN101443646A (en) * | 2006-05-16 | 2009-05-27 | 卢森特技术有限公司 | Shock and launch apparatus |
| CN101354328A (en) * | 2007-07-27 | 2009-01-28 | 贝恩德·索恩 | Freely falling body detector for determining deformation coefficient of ground under specific impact loading |
| CN201589740U (en) * | 2010-02-08 | 2010-09-22 | 北京理工大学 | Dynamic impact loading testing table and test system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101769838A (en) | 2010-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101769838B (en) | Dynamic impact loading test bed and test system thereof | |
| CN103604578B (en) | Large-scale high-magnitude horizontal impact test stand based on pneumatic type | |
| CN103134725B (en) | Anchor rod performance test device | |
| CN102621013B (en) | Dynamic performance test macro | |
| CN109115634A (en) | It can accurately measure the falling weight impact test platform and test method of shock loading and dynamic displacement | |
| CN201277925Y (en) | Concrete stress-strain full curve test apparatus with loading speed controllable | |
| WO2013143145A1 (en) | Dynamics performance testing system | |
| CN104749047B (en) | A kind of flexural member Mechanics Performance Testing device and its application method | |
| CN106841577B (en) | Concrete loading device and method applicable to load-environment coupling effect | |
| CN105352694A (en) | Drop hammer for impact test for simulating energy consumption of impact body | |
| CN201589740U (en) | Dynamic impact loading testing table and test system thereof | |
| CN109972670A (en) | The loading device of lower bearing capacity of pile foundation attribute testing is acted on for indoor combined load | |
| CN202372410U (en) | Anchor rod performance test device | |
| CN105606472A (en) | Anchor rod impact test device and method thereof | |
| CN203148797U (en) | Test bed of protecting structure for falling objects and overturning of vehicle | |
| CN108333057B (en) | Lever type coal rock long-term creep test device | |
| CN209086089U (en) | It can accurately measure the falling weight impact test platform of shock loading and dynamic displacement | |
| RU2315969C1 (en) | Stand for testing concrete and reinforced concrete members short - time period central and out-of-center dynamic compression | |
| CN204575459U (en) | A kind of flexural member Mechanics Performance Testing device | |
| CN115452548A (en) | Dynamic and static combined test system and method for active support system of underground engineering | |
| CN206095514U (en) | Tensiometer calibrating device | |
| CN213740985U (en) | Dynamic penetration test device | |
| CN102661831A (en) | Reversing device and calibration device and calibration method of pull force value of power indication machine of shock absorber | |
| CN114354396A (en) | Dynamic buckling and ultimate strength testing device for large stiffened plate of ship body under impact load | |
| CN206601245U (en) | A kind of overload protection device detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20121010 Termination date: 20140208 |