CN107462479A - Test platform and drop weight test method for drop hammer tester - Google Patents
Test platform and drop weight test method for drop hammer tester Download PDFInfo
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- CN107462479A CN107462479A CN201710650511.1A CN201710650511A CN107462479A CN 107462479 A CN107462479 A CN 107462479A CN 201710650511 A CN201710650511 A CN 201710650511A CN 107462479 A CN107462479 A CN 107462479A
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- 238000012360 testing method Methods 0.000 title claims abstract description 63
- 238000010998 test method Methods 0.000 title abstract description 4
- 238000009863 impact test Methods 0.000 claims abstract description 24
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 3
- 238000005728 strengthening Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000012163 sequencing technique Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- 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
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
-
- 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
- G01N2203/0039—Hammer or pendulum
-
- 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
- G01N2203/0617—Electrical or magnetic indicating, recording or sensing means
- G01N2203/0623—Electrical or magnetic indicating, recording or sensing means using piezoelectric gauges
-
- 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
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to a kind of test platform (10) for drop hammer tester and drop weight test method, the test platform to include：The test platform (10) is fixed on the drop hammer tester by platform floor (14), the platform floor；Weighted platform (12), the weighted platform are provided closer to the upstream position of the impact power transmitting of the drop hammer tester relative to the platform floor (14)；It is characterized in that, the test platform (10) also includes at least one piezoelectric sensing device assembly (16) between the platform floor (14) and the weighted platform (12), and the data of the impulsive force of the drop hammer tester are obtained by the piezoelectric sensing device assembly (16).By the test platform of the present invention, the accurate impact force data of falling weight impact test can be directly obtained.
Description
Technical field
The present invention relates to a kind of test device of impulsive force, and in particular to a kind of drop weight test test platform and examination of dropping hammer
Proved recipe method.
Background technology
Traditional drop hammer impact testing machine includes buting iron, suspension hook, steel wire rope, claw hook device, rail clamping device (such as Fig. 1
It is shown).Wherein, the numerical value of impulsive force is all indirect gain in falling weight impact test.When specially testing early-stage preparations, trying
Foil gauge is arranged on part, so as in impact process, the strain value for the foil gauge pasted on test specimen be transmitted by transmission equipment
Into corresponding instrument, the impulsive force suffered by test specimen is then conversed by relations such as ess-strains.
In practice, due to the difference of foil gauge position, the impulsive force that the later stage converses can be variant, and the process that converts
In also have error so as to obtain error between impulsive force and actual impulse larger for test.Thus in falling weight impact test,
Impulsive force for test specimen is difficult accurate measurement.
The content of the invention
To solve the above problems, one aspect of the present invention provides a kind of test platform for drop hammer tester, the test
Platform includes：The test platform is fixed on the drop hammer tester by platform floor, the platform floor；Weighted platform,
The weighted platform is provided closer to the upper of the impact power transmitting of the drop hammer tester relative to the platform floor
Swim position；Wherein, the test platform also includes at least one pressure between the platform floor and the weighted platform
Electric transducer component, the data of the impulsive force of the drop hammer tester are obtained by the piezoelectric sensing device assembly.
Further, the piezoelectric sensing device assembly includes screw rod, sunk screw and piezoelectric transducer；The screw rod
First end is platform floor junction surface, and the bottom plate junction surface has external screw thread to be engaged with the platform floor；The screw rod
The second end be weighted platform junction surface, the weighted platform junction surface has internal thread to be engaged with the sunk screw.
Further, the weighted platform junction surface has relative to the bigger bellend of the body diameter of the screw rod
Portion, the end face of the enlarged end flush with the top surface of the sunk screw.
Further, the platform floor engaged with the platform floor junction surface is correspondingly arranged on the platform floor
Hole；The weighted platform hole engaged with the weighted platform junction surface is correspondingly arranged on the weighted platform.
Further, the weighted platform includes the platform body of tabular；And strengthening part, it is arranged on the platform sheet
On the downstream side of the impact power transmitting of the close drop hammer tester of body.
Further, the strengthening part includes support block, horizontal main rib and longitudinal main rib；Close to the platform body
Longitudinal main rib at geometry center relative to away from the platform body geometry center longitudinal main rib
With bigger depth of section.
Further, the support block has and the piezoelectric transducer identical shape；Also, in the drop weight test
On the impact power transmitting of machine, the support block covers all the piezoelectric transducer.
Further, the support block and the piezoelectric transducer are the shape of annulus, and the endoporus of the annulus
It is engaged with the shape of the screw rod.
Further, the number of the piezoelectric sensing device assembly is 4, and the test platform is in the drop hammer tester
Rectangle is projected as on impact power transmitting, the piezoelectric sensing device assembly is set close to 4 angles of the rectangle.
Another aspect of the present invention provides a kind of falling weight impact test method, uses any one of foregoing claim institute
The test platform stated, including with the next stage：Lifting is dropped hammer to prepare to produce the stage of impulsive force；Release is dropped hammer with impact test piece
Stage；Weighted platform transmits impulsive force to the stage of piezoelectric sensing device assembly；Piezo sensor output signal to external equipment obtains
To the stage of impact force data.
The beneficial effect of one aspect of the present invention is：By providing a kind of test platform, drop impact can be directly obtained
The accurate impact force data of experiment.
The beneficial effect of another aspect of the present invention is：Drop hammer tester test platform the data obtained can be carried out directly
Subsequent analysis, the workload of conversion is eliminated, conveniently obtains impulsive force.
The beneficial effect of another aspect of the invention is：Test platform has removable unloading functions, can be according to different impacts
Power changes the electric transducer for the pressure that matches, and on the premise of maximum range is ensured, can improve the sensitivity of data.Test simultaneously flat
Platform can not only be applied on the drop hammer impact testing machine of different stage, can also have with similar impact test equipment
There is extensive versatility.
Brief description of the drawings
Fig. 1 is the schematic diagram of the drop hammer impact testing machine of prior art.
Fig. 2 is the stereogram of the test platform of the present invention.
Fig. 3 is that the test platform of the present invention removes the stereogram after weighted platform.
Fig. 4 be the present invention weighted platform from downside when stereogram.
Fig. 5 is the test chart of the test platform of the present invention.
The longitudinal sectional drawing of the test platform of Fig. 6 present invention.
Fig. 7 is the enlarged diagram of the piezoelectric sensing device assembly of the present invention.
Fig. 8 is the flow chart of the drop weight test method of the present invention.
In institute's accompanying drawing, equivalent or similar component is represented with same reference numerals.
Embodiment
The present invention is further described with reference to specific embodiment, but does not limit the invention to these tools
Body embodiment.One skilled in the art would recognize that present invention encompasses may include in Claims scope
All alternatives, improvement project and equivalents.
It should be noted that the reference of identical label is identical in description and claims of this specification and above-mentioned accompanying drawing
Part, term " first ", " second " etc. are for distinguishing similar object, without for describing specific order or successively
Order.It should be appreciated that the term so used can exchange in the appropriate case, so as to embodiments of the invention described herein.
In addition, term " comprising " and " having " and their any deformation, it is intended that cover it is non-exclusive include, for example, comprising
The process of series of steps or unit, method, system, product or equipment are not necessarily limited to those steps clearly listed or list
Member, but may include not list clearly or for the intrinsic other steps of these processes, method, product or equipment or list
Member.
Drop hammer tester
Drop hammer tester (drop hammer impact testing machine) main operational principle is：With defined quality and size from specified altitude
The predetermined portion of impact test piece, to test the impact failure power of test specimen.
Common drop hammer tester is made up of testing stand, Electric Appliance Cabinet, control instrument lamp.Testing stand also includes test specimen lift
Structure, drop hammer lifting mechanism, anti-secondary pulse mechanism, the guider that drops hammer etc..
In addition, small-sized drop hammer impact testing machine and large-scale falling weight impact test can be also divided into according to the size of drop hammer tester
Machine.
Test platform
The present invention is by research, there is provided a kind of test platform 10 for drop hammer tester.With reference to shown in Fig. 2 to Fig. 7,
Test platform includes：Platform floor 14, for test platform 10 to be fixed on into the drop hammer tester；And weighted platform
12, it is provided closer to the upstream position of the impact power transmitting of the drop hammer tester relative to platform floor 14.
When the impact power transmitting of drop hammer tester refers to drop impact test specimen, the elder generation of part is passed to according to impulsive force
Order and the direction that refers to afterwards.Under the trystate of usual drop hammer tester, herein referred impact power transmitting is with working as
Ground gravity direction is identical.
As shown in Fig. 2 test platform 10 also includes at least one pressure between platform floor 14 and weighted platform 12
Electric transducer component 16, the data of the impulsive force of drop hammer tester are obtained by piezoelectric sensing device assembly 16.
More specifically, shown in Figure 7, piezoelectric sensing device assembly 16 includes piezoelectric transducer 166.Piezoelectric transducer
166 are clipped between platform floor 14 and weighted platform 12, so as to the impulsive force of direct measurement drop hammer tester.
Piezoelectric sensing device assembly
Piezoelectric sensing device assembly 16 includes piezoelectric transducer 166 and piezoelectric transducer 166 is fixedly installed on into platform bottom
Structure between plate 14 and weighted platform 12.
With reference to shown in Fig. 3, Fig. 5 to Fig. 7, piezoelectric sensing device assembly 16 includes screw rod 164, sunk screw 162 and piezoelectricity
Sensor 166.Piezoelectric transducer 166 is provided with centre bore, and screw rod 164 passes through the centre bore of piezoelectric transducer 166, piezoelectricity is passed
Sensor 166 is fixedly installed between platform floor 14 and weighted platform 12.
More specifically, the first end of screw rod 164 is platform floor junction surface 168, and it is constructed at the end of screw rod 164
Portion has external screw thread to be engaged with platform floor 14.Platform floor hole 142, platform floor hole 142 are provided with platform floor 14
Inside it is provided with the internal thread coordinated with the external screw thread at platform floor junction surface 168.
Second end of screw rod 164 is weighted platform junction surface 163, and it has internal thread to be engaged with sunk screw 162.Add
The weighted platform hole 122 engaged with weighted platform junction surface 163 is correspondingly arranged on carrying platform 12.Sunk screw 162 is typically
Hexagon socket countersunk flat cap head screw can be selected.
Weighted platform junction surface 163 has relative to the bigger enlarged end of the body diameter of screw rod 164, the enlarged end
End face flushed with the top surface of sunk screw 162.Corresponding weighted platform hole 122 has bigger diameter in upper end, and under
End has less diameter, the stage portion formed with diameter mutation between both ends so that the enlarged end of screw rod 164 coordinates
Ground is stuck in stage portion.So, in drop hammer tester impact test piece, avoid the resilience of weighted platform 12 or takeoff and influence to try
Test result.
In this way, screw rod 164, which first passes through, sets weighted platform hole 122 on weighted platform 12, piezoelectric transducer is then passed through
166, then the platform floor junction surface 168 of screw rod 164 is engaged with platform floor hole 142, finally twisted using sunk screw 162
The tightly screw thread between sunk screw 162 and weighted platform junction surface 163, and the spiral shell between screw rod 164 and platform floor hole 142
Line.
Above-mentioned construction causes piezoelectric transducer 166 to be fittingly disposed between platform floor 14 and weighted platform 12.
Schematically, screw rod 14, piezoelectric transducer 166, weighted platform junction surface 163 and loading in accompanying drawing of the invention
The profile of the cross section of deck hole 122 is all circular.However, the invention is not restricted to this, the profile of the cross section of above-mentioned each part
Can also be other regular or irregular geometries, including but not limited to hexagon, T-shaped etc..
Further, the diameter profile at the platform floor junction surface 168 of screw rod 164 is less than the body of screw rod 164 and (that is, set
Part between weighted platform 12 and platform floor 14) maximum gauge, so as to platform floor junction surface 168 and screw rod 164
Between there is stage portion, the screw thread so between screw rod 164 and platform floor hole 142 to tighten after, stage portion is just stuck in flat
The upper surface of platform bottom plate 14, will not be due to excessively being tightened, and precompression is produced between platform floor 14 and weighted platform 12, shadow
Ring the precision of piezoelectric transducer 166.
Further, screw rod 164 also how sets adjust pad (not shown), to adjust piezoelectric transducer 166
Relative position.
Further, on the direction of transfer of impulsive force, except in addition to enlarged end, screw rod 164 is in platform floor 14
Part maximum gauge again smaller than screw body (that is, be arranged on part) between weighted platform 12 and platform floor 14 most
Major diameter, in this way, weighted platform 12 will not influence impulsive force transmission due to screw rod 164 friction of itself etc..In addition, variable diameters
Screw rod 164 also allows for matching when machine-shaping and installation.
Platform floor
Test platform 10 is fixed on drop hammer tester by platform floor 14.The platform floor 14 that the present invention illustrates is substantially
The plate body of rectangle.However, the invention is not restricted to this, platform floor 14 can be set according to the size of specific drop hammer tester
Put.
Quantity on platform floor 14 corresponding to piezoelectric sensing device assembly 16 is provided with corresponding platform floor hole 142, with
For engaging the platform floor junction surface 168 of screw rod 164.
Weighted platform
Weighted platform 12 includes the platform body of tabular, and is arranged on the impact of the close drop hammer tester of platform body
Strengthening part on the downstream side of power transmitting.
Engage shown in Fig. 4 to Fig. 6, the support block 128 essentially identical with the shape of piezoelectric transducer 166 is arranged on platform bottom
The corresponding position of plate hole 142, and support block 128 is run through in platform floor hole 142.Further, support block 128 can be complete
Cover the upper surface of piezoelectric transducer 166.In this way, during falling weight impact test, impulsive force can be fully conducted extremely
Piezoelectric transducer.
Further, horizontal main rib 126 and longitudinal main rib 129 are additionally provided with weighted platform, close to the several of platform body
Longitudinal main rib 129 of what centroid has bigger relative to longitudinal main rib 129 at the geometry center away from platform body
Depth of section.More specifically, the section at the both ends 124 of longitudinal main rib 129 at the geometry center away from platform body
Highly diminish.Horizontal main rib 126 and longitudinal main rib 129 are met in support block 128 jointly.It is arranged such so that loading is flat
Platform has more preferable intensity, can bear higher impact force, and has good integral rigidity.
Further, support block 128 and piezoelectric transducer 166 are the shape of annulus, and the endoporus of annulus with it is described
The shape of screw rod 164 is engaged.
Further, the number of piezoelectric sensing device assembly 16 is 4, and test platform 10 passes in the impulsive force of drop hammer tester
The rectangle that is projected as on direction is passed, piezoelectric sensing device assembly 16 is set close to 4 angles of rectangle.
In summary, test platform of the invention has removable unloading functions, can change the pressure that matches according to different impulsive forces
Electric transducer, on the premise of maximum range is ensured, the sensitivity of data can be improved.Test platform can not only be applied simultaneously
On the drop hammer impact testing machine of different stage, there can also be extensive versatility with similar impact test equipment.
Falling weight impact test method
The present invention also provides a kind of falling weight impact test method, uses foregoing test platform 10.Including following each rank
Section：Lifting is dropped hammer to prepare to produce the stage of impulsive force；Release was dropped hammer with the stage of impact test piece；
Weighted platform 12 transmits impulsive force to the stage of piezoelectric sensing device assembly 16；Piezoelectric transducer 166 outputs signal to
External equipment obtains the stage of impact force data.
More specifically, including：Drop hammer tester is opened, lifting is dropped hammer to predetermined altitude；Release is dropped hammer, and will be dropped hammer from default
Height falls along guide rail；When drop hammer touch test specimen after, impulsive force starts to act on the test specimen being hit, and impulsive force can be by trying
Part continues to pass down to weighted platform 12, and then impulsive force is delivered to the piezoelectric transducer 166 of lower section, piezoelectric transducer 166
By transmitting device by the data transfer of impulsive force into external equipment, by vertical load equilibrium equation, this can be directly obtained
The accurate impact force data of impact test.
It should be appreciated that the present invention describe method the step of the description that is merely exemplary, its priority is carried out
Time sequencing does not have special requirement, unless itself there is inevitable sequencing relation.
As it appears from the above, although the present invention is illustrated with reference to limited embodiment and accompanying drawing, belonging to the present invention
Possess usual knowledge in field can carry out various modification and variation from this record per capita.Thus, other embodiment and power
Sharp claim belongs to scope of the claims with equivalent.
Claims (10)
1. a kind of test platform (10) for drop hammer tester, the test platform includes：
The test platform (10) is fixed on the drop hammer tester by platform floor (14), the platform floor；
Weighted platform (12), the weighted platform are provided closer to the drop hammer tester relative to the platform floor (14)
Impact power transmitting upstream position；
Characterized in that, the test platform (10) is also including at least one flat between the platform floor (14) and the loading
Piezoelectric sensing device assembly (16) between platform (12), the drop hammer tester is obtained by the piezoelectric sensing device assembly (16)
The data of impulsive force.
2. test platform (10) according to claim 1, it is characterised in that the piezoelectric sensing device assembly (16) includes spiral shell
Bar (164), sunk screw (162) and piezoelectric transducer (166)；
The first end of the screw rod (164) is platform floor junction surface (168), and the bottom plate junction surface (168) has external screw thread
To be engaged with the platform floor (14)；
Second end of the screw rod (164) is weighted platform junction surface (163), and the weighted platform junction surface (163) has interior
Screw thread with the sunk screw (162) to engage.
3. test platform (10) according to claim 2, it is characterised in that the weighted platform junction surface (163) has
Relative to the bigger enlarged end of the body diameter of the screw rod (164), the end face of the enlarged end and the sunk screw
(162) top surface flushes.
4. test platform (10) according to claim 2, it is characterised in that be correspondingly arranged on the platform floor (14)
The platform floor hole (142) engaged with the platform floor junction surface (168)；Be correspondingly arranged on the weighted platform (12) with
The weighted platform hole (122) of weighted platform junction surface (163) engagement.
5. the test platform (10) according to any one of claim 2 to 4, it is characterised in that the weighted platform (12)
Platform body including tabular；And
Strengthening part, it is arranged on the downstream side of the impact power transmitting of the close drop hammer tester of the platform body
On.
6. test platform (10) according to claim 5, it is characterised in that the strengthening part include support block (128),
Horizontal main rib (126) and longitudinal main rib (129)；
Longitudinal main rib (129) close to the geometry center of the platform body is relative to the remote platform body
Longitudinal main rib (129) at geometry center has bigger depth of section.
7. test platform (10) according to claim 6, it is characterised in that the support block (128) has and the pressure
Electric transducer (166) identical shape；
Also, on the impact power transmitting of the drop hammer tester, the support block (128) covers all the piezoelectricity
Sensor (166).
8. test platform (10) according to claim 6, it is characterised in that the support block (128) passes with the piezoelectricity
Sensor (166) is the shape of annulus, and the endoporus of the annulus is engaged with the shape of the screw rod (164).
9. test platform (10) according to any one of claim 1 to 4, it is characterised in that the piezoelectric transducer group
The number of part (16) is 4, and the test platform (10) is projected as on the impact power transmitting of the drop hammer tester
Rectangle, the piezoelectric sensing device assembly (16) are set close to 4 angles of the rectangle.
10. a kind of falling weight impact test method, using the test platform (10) any one of foregoing claim, including
With the next stage：
Lifting is dropped hammer to prepare to produce the stage of impulsive force；
Release was dropped hammer with the stage of impact test piece；
Weighted platform (12) transmits impulsive force to the stage of piezoelectric sensing device assembly (16)；
Piezoelectric transducer (166) outputs signal to external equipment and obtains the stage of impact force data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710650511.1A CN107462479B (en) | 2017-08-02 | 2017-08-02 | Test platform for drop hammer testing machine and drop hammer testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710650511.1A CN107462479B (en) | 2017-08-02 | 2017-08-02 | Test platform for drop hammer testing machine and drop hammer testing method |
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| Publication Number | Publication Date |
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| CN107462479A true CN107462479A (en) | 2017-12-12 |
| CN107462479B CN107462479B (en) | 2023-06-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112114362A (en) * | 2020-09-07 | 2020-12-22 | 中北大学 | Method for reconstructing space-time field of underground shallow layer explosion |
| CN114459657A (en) * | 2022-04-14 | 2022-05-10 | 西南交通大学 | Impact load automatic identification method, electronic equipment and storage medium |
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| RU2376567C1 (en) * | 2008-09-29 | 2009-12-20 | Федеральное Государственное Образовательное Учреждение Высшего Профессионального Образования "Южный Федеральный Университет" | Device for bending test of thin specimens |
| CN101509856A (en) * | 2008-12-30 | 2009-08-19 | 南京理工大学 | Multifunction flexible composite material impact test apparatus |
| CN203595593U (en) * | 2013-11-13 | 2014-05-14 | 上海大学 | Novel case drop hammer impact testing machine |
| CN203672533U (en) * | 2013-12-20 | 2014-06-25 | 中南大学 | PVDF based drop hammer tester impact force measuring device |
| CN205785605U (en) * | 2016-05-30 | 2016-12-07 | 沈阳建筑大学 | The drop impact pressure transducer of embedded type PVDF piezoelectric membrane |
| CN106289619A (en) * | 2016-09-13 | 2017-01-04 | 中国科学院长春光学精密机械与物理研究所 | A kind of high precision high rigidity six-dimensional force measuring table |
| CN106768569A (en) * | 2017-03-24 | 2017-05-31 | 沈阳建筑大学 | A kind of shock measuring system of array PVDF piezoelectric membranes |
| CN207036582U (en) * | 2017-08-02 | 2018-02-23 | 中国地震局工程力学研究所 | Test platform for drop hammer tester |
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| CN112114362A (en) * | 2020-09-07 | 2020-12-22 | 中北大学 | Method for reconstructing space-time field of underground shallow layer explosion |
| CN114459657A (en) * | 2022-04-14 | 2022-05-10 | 西南交通大学 | Impact load automatic identification method, electronic equipment and storage medium |
| CN114459657B (en) * | 2022-04-14 | 2022-07-01 | 西南交通大学 | Impact load automatic identification method, electronic device and storage medium |
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