CN105928871A - Forming explosive friction testing system and testing method thereof - Google Patents
Forming explosive friction testing system and testing method thereof Download PDFInfo
- Publication number
- CN105928871A CN105928871A CN201610370117.8A CN201610370117A CN105928871A CN 105928871 A CN105928871 A CN 105928871A CN 201610370117 A CN201610370117 A CN 201610370117A CN 105928871 A CN105928871 A CN 105928871A
- Authority
- CN
- China
- Prior art keywords
- friction
- explosive
- friction sleeve
- measured
- pressure
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
Abstract
The invention discloses a forming explosive friction testing system and a testing method thereof. The forming explosive friction testing system comprises a supporting frame, a mounting component fixedly connected with the supporting frame, a drop speed loading component above the mounting component and a pressurizing component under the mounting component; a to-be-measured explosive piece is fixed by the mounting component. The forming explosive friction testing system further comprises a static charge amplifier electrically connected with a pressure sensor, a circumferential strain gauge arranged in the circumferential direction of a friction sleeve and a high-speed photographic instrument testing component for obtaining the friction velocity between the to-be-measured explosive piece and the sleeve wall of the friction sleeve; the static charge amplifier is connected with an oscilloscope; the circumferential strain gauge is connected with the static strain gauge through an electric bridge and is merged into an intelligent terminal through the static strain gauge. The testing system can detect the radial pressure change and realize the friction coefficient detection under different speed and pressure conditions through the drop speed loading component and the pressurizing component, so that the quantitative analysis on the effect of external friction conditions on friction coefficients under the conditions of high pressure and high speed is realized, and the application scope and the numerical simulation accuracy of the friction testing system are improved.
Description
Technical field
The present invention relates to explosive stability analysis technical field, particularly relate to a kind of based on the packaged explosive friction survey dropped hammer
Test system.The invention still further relates to a kind of method of testing based on above-mentioned test system.
Background technology
Explosive, as a kind of high-energy chemistry material, is easily subject to extraneous various factors (such as friction, shear, impact etc.) effect
Stimulation and light a fire, wherein, friction be explosive igniting a key factor.Especially for explosive loading in low speed penetration mistake
Response process in journey, the friction between explosive and shell case and explosive is explosive generation premature burst, affects the key factor of stability.
For macroscopical fricative heat, explosive coefficient of friction choose the accuracy often determining phenomenological calculation.
Therefore, the determination of coefficient of friction under different operating modes of the different explosive of packaged explosive friction testing system detection is utilized just to seem particularly
Important.
The friction sensitivity experiment of powder and shaped-charge at present is still that the Main Means investigating explosive friction response problem.
Although, numerous researcheres have been proposed for the method for some quantitative analysis explosive friction processes, but, its scope of application all compares
Little, still can not process shaped-charge friction response problem under high pressure, High-Speed Loading.Such as, under high pressure loads, no
With the friction velocity impact on friction process；Under identical speed level, the different interfacial pressure impacts etc. on friction process.Cause
This, it is provided that a kind of packaged explosive friction testing system, to realizing quantitative analysis external world friction condition under high pressure, high-speed condition
For the impact of coefficient of friction, improve the scope of application and the test simulation precision of friction testing system, just become art technology
Personnel's problem demanding prompt solution.
Summary of the invention
It is an object of the invention to provide a kind of packaged explosive friction testing system, to realizing under high pressure, high-speed condition
Quantitative analysis external world friction condition, for the impact of coefficient of friction, improves the scope of application and the test simulation essence of friction testing system
Degree.It is a further object of the present invention to provide a kind of method of testing based on this test system.
To achieve these goals, the present invention provides a kind of packaged explosive friction testing system, including bracing frame, is fixed in
The mounting assembly of support frame as described above, it is positioned at the speed charging assembly that drops hammer above described mounting assembly, and is positioned at described installation group
Pressure-applying unit below part, explosive to be measured fixed by described mounting assembly, described in drop hammer speed charging assembly for driving
Piston drops hammer and moves downward, and described pressure-applying unit coordinates with mounting assembly to described explosive to be measured applying axial compressive force；
Described mounting assembly includes being fixed in the friction sleeve guide rail of support frame as described above with its lower end, being loaded on described friction sleeve
Friction sleeve tube stent inside cylinder guide rail, and the friction sleeve threadeded with described friction sleeve tube stent, described explosive to be measured
Sheet is installed in described friction sleeve；
Being provided with upperpush rod and down-pressed pole in described friction sleeve, the top of described upperpush rod is propped up through described friction sleeve
Frame is also threadeded with described friction sleeve guide rail, and its bottom is resisted against the upper surface of described explosive to be measured, described in drop hammer speed
Degree charging assembly is used for driving piston to drop hammer and moves downward, and then clashes into described friction sleeve tube stent；The top of described down-pressed pole
Being resisted against the lower surface of described explosive to be measured, its bottom is provided with pressure transducer, and described pressure transducer bottom is provided with
Sensor stand, described pressure-applying unit applies axial compressive force to described sensor stand；
Also include that response test system, described response test system include the Static Electro electrically connected with described pressure transducer
Lotus amplifier, it is arranged at the circumferential strain sheet of described friction sleeve circumference, and obtains described explosive to be measured and described friction sleeve
The high-speed camera test suite of friction velocity between cylinder barrel, described static electric charge amplifier is connected with oscillograph, described week
It is connected with statical strain indicator by electric bridge to foil gauge, and is incorporated to described intelligent terminal by described statical strain indicator.
Further, speed of dropping hammer described in charging assembly includes the cylinder guide rail being fixed on support frame as described above, along vertically
Direction is slidably mounted on the piston of described cylinder guide rail and drops hammer, is installed on the cylinder end piece of described cylinder guide rail upper end, and laterally
Being arranged at pin sequence described in the pin sequence of described cylinder guide rail and include multiple pin, the diameter of section of each pin is different.
Further, described pressure-applying unit includes that hydraulic cylinder and hydraulic cylinder leg, the cylinder barrel of described hydraulic cylinder pass through
Hydraulic cylinder leg is fixed in support frame as described above, and its cylinder rod end is resisted against described sensor stand.
Further, support frame as described above includes the first gripper shoe, the second gripper shoe and the 3rd from top to bottom be arrangeding in parallel
Gripper shoe, is connected by location support bar between described first gripper shoe and described second gripper shoe, described second gripper shoe
And be connected by location gripper shoe between described 3rd gripper shoe；
Described cylinder guide rails assembling supports in described second in described first gripper shoe, described friction sleeve guide rails assembling
Plate, described hydraulic cylinder leg is installed on described 3rd gripper shoe.
Further, described location support bar is four, positions support bar and be divided into described first gripper shoe described in four
Corner.
The present invention also provides for a kind of packaged explosive friction testing method, for packaged explosive as above friction testing system
In system, comprise the following steps:
It is that explosive to be measured applies axial compressive force by pressure-applying unit, makes explosive to be measured produce expanded radially, and drive
Friction sleeve produces expanded radially, it is achieved the loading of interface normal pressure between explosive to be measured and described friction sleeve；
The change of friction sleeve tube outer surface circumferential strain described in real time record, thus realize described explosive to be measured and described
The real-time monitoring of interface normal pressure between friction sleeve；
After between described explosive to be measured and described friction sleeve, interface normal pressure reaches preset value, by speed of dropping hammer
Piston in charging assembly drops hammer and accelerates to fall；What described piston dropped hammer goes out thorax speed by different cross section diameter in pin sequence
Pin controls；
After described piston drops hammer release, will collide with friction sleeve tube stent, thus promote friction sleeve linearly
Move downward, and with described explosive generation sliding friction to be measured；
In friction process, by the change of described pressure transducer real time recording interface frictional force, and by described high speed
Photographic attachment obtains the friction velocity between described explosive to be measured and described friction sleeve.
The packaged explosive friction testing system that the present invention provides includes bracing frame, is fixed in the installation group of support frame as described above
Part, it is positioned at the speed charging assembly that drops hammer above described mounting assembly, and is positioned at the pressure-applying unit below described mounting assembly, treat
Survey explosive to fix by described mounting assembly, described in the speed charging assembly that drops hammer transport for driving described piston to drop hammer downwards
Dynamic, described pressure-applying unit coordinates with described mounting assembly to described explosive to be measured applying axial compressive force；Described mounting assembly bag
Include and be fixed in the friction sleeve guide rail of support frame as described above with its lower end, be loaded on the friction sleeve inside described friction sleeve guide rail and prop up
Frame, and the friction sleeve threadeded with described friction sleeve tube stent, described explosive to be measured is installed in described friction sleeve；
Upperpush rod and down-pressed pole are installed in described friction sleeve, the top of described upperpush rod through described friction sleeve tube stent and with institute
Stating friction sleeve guide rail threaded, its bottom is resisted against the upper surface of described explosive to be measured, described in drop hammer speed loading group
Part is used for driving described piston to drop hammer and moves downward, and then clashes into described friction sleeve tube stent；The top of described down-pressed pole against
In the lower surface of described explosive to be measured, its bottom is provided with pressure transducer, and described pressure transducer bottom is provided with sensing
Device support, described pressure-applying unit applies axial compressive force to described sensor stand；Also including response test system, described response is surveyed
Test system includes the static electric charge amplifier electrically connected with described pressure transducer, is arranged at the circumference of described friction sleeve circumference
Foil gauge, and obtain the high-speed camera test group of friction velocity between described explosive to be measured and described friction sleeve wall
Part, described static electric charge amplifier is connected with oscillograph, and described circumferential strain sheet is connected with statical strain indicator by electric bridge, and leads to
Cross described statical strain indicator and be incorporated to described intelligent terminal.This test system can detect radial pressure change, and by speed of dropping hammer
Degree charging assembly and pressure-applying unit realize the coefficient of friction detection under friction speed and pressure condition, it is achieved that at high pressure, at a high speed
Under the conditions of quantitative analysis external world friction condition for the impact of coefficient of friction, improve the scope of application and the survey of friction testing system
Examination simulation precision.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only described in the present invention
A little embodiments, for those of ordinary skill in the art, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of packaged explosive a kind of detailed description of the invention of friction testing system provided by the present invention.
Description of reference numerals:
Cylinder end piece 1, cylinder guide rail 2, piston drop hammer 3, pin sequence the 4, first gripper shoe 5, location support bar 6, friction
Sleeve guide rail 7, friction sleeve tube stent 8, upperpush rod 9, sleeve shop bolt 10, friction sleeve 11, explosive to be measured 12, circumference are answered
Become sheet 13, down-pressed pole the 14, second gripper shoe 15, pressure transducer 16, sensor stand 17, location gripper shoe 18, hydraulic cylinder
19, hydraulic cylinder leg the 20, the 3rd gripper shoe 21.
Detailed description of the invention
The core of the present invention is to provide a kind of packaged explosive friction testing system, to realizing under high pressure, high-speed condition
Quantitative analysis external world friction condition, for the impact of coefficient of friction, improves the scope of application and the numerical simulation essence of friction testing system
Degree.Another core of the present invention is to provide a kind of method of testing based on this test system.
In order to make those skilled in the art be more fully understood that technical scheme, below in conjunction with accompanying drawing to this
Bright it is further detailed.
Refer to the knot that Fig. 1, Fig. 1 are packaged explosive a kind of detailed description of the invention of friction testing system provided by the present invention
Structure schematic diagram.
In a kind of detailed description of the invention, what the present invention provided packaged explosive friction testing system includes bracing frame, affixed
In support frame as described above mounting assembly, be positioned at the speed charging assembly that drops hammer above described mounting assembly, and be positioned at described installation
Pressure-applying unit below assembly, explosive 12 to be measured fixed by described mounting assembly, described in drop hammer speed charging assembly for
Driving described piston to drop hammer 3 to move downward, described pressure-applying unit coordinates with described mounting assembly to be executed to described explosive 12 to be measured
Add axial compressive force；Described mounting assembly include with its lower end be fixed in support frame as described above friction sleeve guide rail 7, be loaded on described in rub
Wipe the friction sleeve tube stent 8 inside sleeve guide rail 7, and the friction sleeve 11 threadeded with described friction sleeve tube stent 8, described
Explosive 12 to be measured is installed in described friction sleeve 11；Upperpush rod 9 and down-pressed pole 14, institute are installed in described friction sleeve 11
State the top of upperpush rod 9 through described friction sleeve tube stent 8, and threaded with described friction sleeve guide rail 7, its bottom against
In the upper surface of described explosive 12 to be measured, described in the speed charging assembly that drops hammer 3 move downward for driving described piston to drop hammer,
And then clash into described friction sleeve tube stent 8；The top of described down-pressed pole 14 is resisted against the lower surface of described explosive to be measured 12, its
Bottom is provided with pressure transducer 16, and described pressure transducer 16 bottom is provided with sensor stand 17, described pressure-applying unit to
Described sensor stand 17 applies axial compressive force；Also include that response test system, described response test system include and described pressure
The static electric charge amplifier of force transducer electrical connection, it is arranged at the circumferential strain sheet 13 of described friction sleeve 11 circumference, and obtains
The high-speed camera test suite of friction velocity, described static state between described explosive to be measured 12 and described friction sleeve 11 barrel
Charge amplifier is connected with oscillograph, and described circumferential strain sheet 13 is connected with statical strain indicator by electric bridge, and by described quiet
State deformeter is incorporated to described intelligent terminal.This test system can detect radial pressure change, and by speed loading group of dropping hammer
Part and pressure-applying unit realize the coefficient of friction detection under friction speed and pressure condition, it is achieved that fixed under high pressure, high-speed condition
Component analysis external world friction condition, for the impact of coefficient of friction, improves the scope of application and the numerical simulation essence of friction testing system
Degree.
Specifically, speed of dropping hammer described in charging assembly includes the cylinder guide rail 2 being fixed on support frame as described above, along vertically side
Drop hammer 3 to the piston being slidably mounted on described cylinder guide rail 2, be installed on the cylinder end piece 1 of described cylinder guide rail 2 upper end, and side
Including multiple pin to being arranged at pin sequence 4 described in the pin sequence 4 of described cylinder guide rail 2, the diameter of section of each pin is each
Different.Wherein, cylinder end piece 1 is connected with gas cylinder for closed gas, and piston drops hammer 3 for clashing into friction sleeve tube stent 8, and cylinder is led
Rail 2 is for closed gas, and limits piston and drop hammer 3, it is ensured that piston drops hammer the rectilinearity of 3 travelings, and pin sequence 4 is used for controlling defeated
Go out air pressure, and then control piston and drop hammer and 3 go out thorax speed；Described pin sequence 4 includes multiple pin, the cross section of the plurality of pin
Diameter is different.
Above-mentioned pressure-applying unit includes that hydraulic cylinder 19 and hydraulic cylinder leg 20, the cylinder barrel of described hydraulic cylinder 19 pass through hydraulic pressure
Jar support 20 is fixed in support frame as described above, and its cylinder rod end is resisted against described sensor stand 17, stretches in hydraulic cylinder 19 cylinder rod
Constantly press to sensor stand 17 when going out thus realize explosive 12 to be measured and the expanded radially of friction sleeve 11.It is apparent that
Pressure-applying unit can also be capable of the structure of axial stretching for cylinder or electricity cylinder etc..
Specifically, support frame as described above includes first gripper shoe the 5, second gripper shoe 15 and the 3rd from top to bottom be arrangeding in parallel
Gripper shoe 21, is connected by location support bar 6 between described first gripper shoe 5 and described second gripper shoe 15, and described second
It is connected by location gripper shoe 18 between gripper shoe 15 and described 3rd gripper shoe 21；Described cylinder guide rail 2 is installed on described
First gripper shoe 5, described friction sleeve guide rail 7 is installed on described second gripper shoe 15, and described hydraulic cylinder leg 20 is installed on institute
State the 3rd gripper shoe 21.The support frame structure using this kind of structure is simple, and is capable of installation and the support of each critical piece,
This bracing frame can also use the form of truss.
Above-mentioned location support bar 6 is four, positions support bar 6 and be divided into the corner of described first gripper shoe 5 described in four, with
Ensure stability of strutting system.
When installing this test system, the major architectural of sub-body can be first installed, then upper body is installed, before experiment
The core component of sub-body is installed again.
Concrete, when sub-body major architectural is installed, first location gripper shoe 18 is installed in the 3rd gripper shoe 21,
Then the second gripper shoe 15 is installed on gripper shoe 18 upper end, location.Then, upperpush rod 9 is installed in friction sleeve guide rail 7
Portion, is then installed on the upper end of the second gripper shoe 15 by friction sleeve guide rail 7.Then location support bar 6 is installed on second
The corner of fagging 15.Finally the first gripper shoe 5 is linked together with location support bar 6, complete test system sub-body master
Want the installation of framework.When mounted, can be bolted, or can pass through groove fit, the embodiment of the present invention is not
It is limited to this.
In embodiments of the present invention, friction sleeve guide rail 7 mainly has two aspect effects: one is subject to from lower end hydraulic cylinder
The axial compressive force of body 19, thus apply axial compressive force to explosive 12 to be measured；Two is by arc-shaped side groove, it is ensured that friction sleeve props up
The axial rectilinearity that frame 8 runs.
When installing upper body, first cylinder guide rail 2 is fixed in lower end the first gripper shoe 5, then by pin sequence
Piston is dropped hammer and 3 is fixed in cylinder guide rail 2 by row 4, cylinder end piece 1 finally puts O-shaped rubber ring, and is contained in cylinder guide rail 2
Top, and by the connection of nitrogen gas cylinder Yu cylinder guide rail 2 top, complete the installation of test system upper body.Can between part
To be bolted, or by threaded engagement, the embodiment of the present invention is not limited to this.
Before running this test system, need explosive 12 to be measured is installed.First circumferential strain sheet 13 is attached to sleeve outer wall
The position corresponding with explosive 12 to be measured, then passes through threaded engagement by friction sleeve 11, is connected with friction sleeve tube stent 8, then
Pass through upperpush rod 9, put in friction sleeve guide rail 7, by sleeve shop bolt 10 fixed position.Then by prefabricated to be measured
Explosive 12 (Φ 30 × 10mm) loads in friction sleeve 11, more down installs down-pressed pole 14, pressure transducer 16, sensing
Device support 17, hydraulic cylinder 19 and hydraulic cylinder leg 20, and hydraulic pump is connected with hydraulic cylinder 19, complete this explosive to be measured
The installation of 12.
This test system also includes building friction response test system, when installing this friction response test system, first
Static electric charge amplifier is connected with pressure transducer 16, and accesses oscillograph, composition axial compressive force test system；Then by week
It is connected with statical strain indicator by electric bridge to foil gauge 13, and accesses computer, composition radial pressure test system；Finally build height
Speed photographic apparatus test system, this system may be used for obtaining the friction velocity between explosive and sleeve wall, completes a whole set of friction and rings
Building of system should be tested.
In embodiments of the present invention, explosive frictional experiment can be shaped by this test system.Concrete, in experiment
Time, first turning on radial pressure test system, this test system may be used for monitoring the change of the radial pressure of explosive 12 to be measured
Change.It is then turned on hydraulic pump, makes hydraulic cylinder 19 main shaft increase, apply axial compressive force to explosive 12 to be measured lentamente, make to treat
Survey explosive 12 and produce expanded radially (explosive a size of Φ 30 × 10mm), thus extrusion friction sleeve 11 so that it is slight expansion,
Circumferential strain ε is produced in friction sleeve 11 appearancet, can read circumference by the statical strain indicator in radial pressure test system should
Become εt, and normal pressure P of friction sleeve 11 inwall is obtained by formula (1)i:
Wherein, E is the elastic modelling quantity of friction sleeve 11 material, ReIt is its outer radius, RiIt it is its inner radial.
When reading shown in statical strain indicator reaches to predict numerical value, stop applying pressure, be then turned on axial compressive force test
System, this test system may be used for monitoring the change of explosive 12 axial compressive force to be measured, and the increment of experiment Axial Force is i.e.
Numerical value for axial friction.Then can pass through high-speed photography system, observe the axial movement of friction sleeve 11, read
Friction sleeve 11 axially-movable speed.
After friction response test system debug, the cylinder in the rate control module that drops hammer is filled with nitrogen, makes cylinder
Pressure raises, and when force value reaches the shear strength of pin sequence 4, pin sequence 4 occurs shear fracture, such as, and this pin
Pin in sequence 4 can be that 45# steel is made, then shear strength 180MPa.Pin sequence 4 ruptures so that piston drops hammer 3
Accelerate to glide in cylinder guide rail 2, the speed required by final acquisition, clash into the friction sleeve tube stent 8 of lower end, make friction sleeve
11 produce sliding friction with explosive 12 side wall surface to be measured.The pin sequence 4 of varying cross-section diameter can be used, be used for regulating
The initial release pressure of cylinder, finally makes piston drop hammer the different stroke speed of 3 acquisitions, in such manner, it is possible to realize differentiated friction speed
The loading of degree, has expanded the velocity interval of shaped-charge frictional experiment.It addition, in friction process, axial compressive force test system
Friction sleeve 11 and explosive 12 side to be measured can be monitored and keep away the change of face frictional force.
Except above-mentioned test system, the present invention also provides for a kind of packaged explosive friction testing side based on this test system
Method, comprises the following steps:
It is that explosive 12 to be measured applies axial compressive force by pressure-applying unit, makes explosive 12 to be measured produce expanded radially, and
Friction sleeve 11 is driven to produce expanded radially, it is achieved between explosive 12 to be measured and described friction sleeve 11, interface normal pressure adds
Carry；
The change of friction sleeve 11 outer surface circumferential strain described in real time record, thus realize described explosive to be measured 12 He
The real-time monitoring of interface normal pressure between described friction sleeve 11；
After between described explosive 12 to be measured and described friction sleeve 11, interface normal pressure reaches preset value, by dropping hammer
Piston in speed charging assembly drop hammer 3 acceleration fall；Described piston drop hammer 3 the thorax speed that goes out cut by different in pin sequence 4
The pin of face diameter controls；
After described piston drops hammer 3 releases, will collide with friction sleeve tube stent 8, thus promote friction sleeve linearly side
To moving downward, and there is sliding friction with described explosive 12 to be measured；
In friction process, by the change of described pressure transducer 16 real time recording interface frictional force, and by described height
Speed photographic attachment obtains the friction velocity between described explosive 12 to be measured and described friction sleeve 11.
From the foregoing, it will be observed that the packaged explosive friction testing system of the embodiment of the present invention and method of testing thereof, to explosive to be measured
12 apply three-dimensional confined pressure, until the pressure of explosive 12 to be measured reaches preset value, then by control module of dropping hammer, drop hammer piston
3 apply pressure loading, accelerate to glide, the 3 shock friction sleeve tube stents 8 so that piston drops hammer so that friction sleeve 11 is with to be measured
Explosive 12 rubs, then by test system, measures the malleation in explosive 12 to be measured and friction sleeve 11 friction process
Power, frictional force and friction velocity.It is thus possible to ensure under triaxial compressions effect, explosive 12 to be measured will not in friction process
Occur broken, it is possible to preferably embody the friction response pattern between packaged explosive and sleeve wall；Ensure that friction velocity or
Interface normal pressure is under a certain narrow and small change level, it is achieved the single-factor consecutive variations of speed or pressure, thus realizes examining respectively
Examine friction velocity and the interface normal pressure affecting laws to friction process；Can be in higher interface normal pressure (0～50MPa) with rub
Wiping under speed (0～40m/s), the friction response to shaped-charge is analyzed, thus in shaped-charge quantitative analysis field, greatly
Expand greatly the loading range of explosive frictional experiment, also strengthen the completeness of explosive friction response data.
By the way of explanation, only describe some one exemplary embodiment of the present invention above, undoubtedly, for ability
The those of ordinary skill in territory, in the case of without departing from the spirit and scope of the present invention, can be by various different modes to institute
The embodiment described is modified.Therefore, above-mentioned accompanying drawing and description are the most illustrative, should not be construed as the present invention
The restriction of claims.
Claims (6)
1. a packaged explosive friction testing system, it is characterised in that include bracing frame, be fixed in the installation group of support frame as described above
Part, it is positioned at the speed charging assembly that drops hammer above described mounting assembly, and is positioned at the pressure-applying unit below described mounting assembly, treat
Survey explosive (12) to fix by described mounting assembly, described in drop hammer speed charging assembly for driving piston to drop hammer (3) downwards
Motion, described pressure-applying unit coordinates with described mounting assembly to described explosive to be measured (12) applying axial compressive force；
Described mounting assembly includes being fixed in friction sleeve guide rail (7) of support frame as described above with its lower end, being loaded on described friction sleeve
The friction sleeve tube stent (8) of cylinder guide rail (7) inner side, and the friction sleeve (11) threadeded with described friction sleeve tube stent (8),
Described explosive to be measured (12) is installed in described friction sleeve (11)；
Being provided with upperpush rod (9) and down-pressed pole (14) in described friction sleeve (11), the top of described upperpush rod (9) is through described
Friction sleeve tube stent (8) is also threadeded with described friction sleeve guide rail (7), and its bottom is resisted against described explosive to be measured (12)
Upper surface, described in drop hammer speed charging assembly for drive piston drop hammer (3) move downward, and then clash into described friction sleeve
Support (8)；The top of described down-pressed pole (14) is resisted against the lower surface of described explosive to be measured (12), and its bottom is provided with pressure
Sensor (16), described pressure transducer bottom is provided with sensor stand, and described pressure-applying unit is to described sensor stand
(17) axial compressive force is applied；
Also include that response test system, described response test system include the Static Electro electrically connected with described pressure transducer (16)
Lotus amplifier, it is arranged at the circumferential strain sheet (13) of described friction sleeve (11) circumference, and obtains described explosive to be measured (12)
And the high-speed camera test suite of friction velocity between described friction sleeve (11) barrel, described static electric charge amplifier with show
Ripple device connects, and described circumferential strain sheet (13) is connected with statical strain indicator by electric bridge, and is incorporated to by described statical strain indicator
Described intelligent terminal.
Packaged explosive friction testing system the most according to claim 1, it is characterised in that described in drop hammer speed charging assembly
Including the cylinder guide rail (2) being fixed on support frame as described above, the piston that is vertically slidably mounted on described cylinder guide rail (2)
Drop hammer (3), be installed on the cylinder end piece (1) of described cylinder guide rail (2) upper end, and laterally disposed in described cylinder guide rail (2)
Pin sequence (4) described pin sequence (4) includes multiple pin, and the diameter of section of each pin is different.
Packaged explosive friction testing system the most according to claim 2, it is characterised in that described pressure-applying unit includes hydraulic pressure
Cylinder body (19) and hydraulic cylinder leg (20), the cylinder barrel of described hydraulic cylinder (19) is fixed in described by hydraulic cylinder leg (20)
Support, its cylinder rod end is resisted against described sensor stand (17).
Packaged explosive friction testing system the most according to claim 3, it is characterised in that support frame as described above includes by up to
Under the first gripper shoe (5), the second gripper shoe (15) and the 3rd gripper shoe (21) that be arranged in parallel, described first gripper shoe (5) and
It is connected by location support bar (6) between described second gripper shoe (15), described second gripper shoe (15) and described 3rd
It is connected by location gripper shoe (18) between fagging (21)；
Described cylinder guide rail (2) is installed on described first gripper shoe (5), and described friction sleeve guide rail (7) is installed on described second
Gripper shoe (15), described hydraulic cylinder leg (20) is installed on described 3rd gripper shoe (21).
Packaged explosive friction testing system the most according to claim 4, it is characterised in that described location support bar (6) is
Four, position support bar (6) described in four and be divided into the corner of described first gripper shoe (5).
6. a packaged explosive friction testing method, for the packaged explosive friction testing as described in any one of claim 1-5
In system, it is characterised in that comprise the following steps:
It is that explosive to be measured (12) applies axial compressive force by pressure-applying unit, makes explosive to be measured (12) produce expanded radially, and
Friction sleeve (11) is driven to produce expanded radially, it is achieved interface malleation between explosive to be measured (12) and described friction sleeve (11)
The loading of power；
Described in real time record rub sleeve (11) outer surface circumferential strain change, thus realize described explosive to be measured (12) and
The real-time monitoring of interface normal pressure between described friction sleeve (11)；
After between described explosive to be measured (12) and described friction sleeve (11), interface normal pressure reaches preset value, by dropping hammer
Piston in speed charging assembly drops hammer and accelerates to fall；What described piston dropped hammer goes out thorax speed by pin sequence (4) different sections
The pin of face diameter controls；
After described piston drops hammer release, will collide with friction sleeve tube stent (8), thus promote friction sleeve (11) linearly side
To moving downward, and there is sliding friction with described explosive to be measured (12)；
In friction process, by the change of described pressure transducer (16) real time recording interface frictional force, and by described high speed
Photographic attachment obtains the friction velocity between described explosive to be measured (12) and described friction sleeve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610370117.8A CN105928871B (en) | 2016-05-30 | 2016-05-30 | A kind of packaged explosive friction testing system and its test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610370117.8A CN105928871B (en) | 2016-05-30 | 2016-05-30 | A kind of packaged explosive friction testing system and its test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105928871A true CN105928871A (en) | 2016-09-07 |
| CN105928871B CN105928871B (en) | 2019-10-25 |
Family
ID=56841494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610370117.8A Active CN105928871B (en) | 2016-05-30 | 2016-05-30 | A kind of packaged explosive friction testing system and its test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105928871B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106977356A (en) * | 2017-05-03 | 2017-07-25 | 西安近代化学研究所 | A kind of cylinder test explosive press-fits mould |
| CN108225940A (en) * | 2017-09-18 | 2018-06-29 | 北京理工大学 | A kind of explosive shearing test system and test method |
| CN108226028A (en) * | 2018-01-09 | 2018-06-29 | 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 |
| CN108761027A (en) * | 2018-06-28 | 2018-11-06 | 中国工程物理研究院化工材料研究所 | High explosive low speed penetration control and high explosive low speed puncture experimental method |
| CN109406385A (en) * | 2018-12-14 | 2019-03-01 | 中国工程物理研究院流体物理研究所 | A kind of intrusion loading device suitable for cylindrical explosive substitute material |
| CN110187078A (en) * | 2019-06-12 | 2019-08-30 | 西安近代化学研究所 | A kind of explosive accelerator |
| CN110220840A (en) * | 2019-06-12 | 2019-09-10 | 西安近代化学研究所 | A kind of explosive accelerator and method |
| CN110231282A (en) * | 2019-06-04 | 2019-09-13 | 西安近代化学研究所 | A kind of explosive knockout process strain rate measuring device |
| CN111735761A (en) * | 2020-05-14 | 2020-10-02 | 济南大学 | Method and device for obtaining sliding friction coefficient of powder |
| CN111928992A (en) * | 2020-07-22 | 2020-11-13 | 北京理工大学 | Device for testing high-temperature pressure for burning test bomb |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907557A (en) * | 2010-07-30 | 2010-12-08 | 北京宇航系统工程研究所 | System for accurately testing friction damping |
| CN104122199A (en) * | 2014-07-29 | 2014-10-29 | 广东宏大爆破股份有限公司 | Drop hammer instrument for testing impact sensitivity of explosives |
| CN104237117A (en) * | 2014-09-18 | 2014-12-24 | 西安近代化学研究所 | Grain friction test device under low-speed drop hammer impact loading |
| CN104266962A (en) * | 2014-10-15 | 2015-01-07 | 中国人民解放军国防科学技术大学 | Device for testing safety performance of explosive under impact and friction conditions |
-
2016
- 2016-05-30 CN CN201610370117.8A patent/CN105928871B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907557A (en) * | 2010-07-30 | 2010-12-08 | 北京宇航系统工程研究所 | System for accurately testing friction damping |
| CN104122199A (en) * | 2014-07-29 | 2014-10-29 | 广东宏大爆破股份有限公司 | Drop hammer instrument for testing impact sensitivity of explosives |
| CN104237117A (en) * | 2014-09-18 | 2014-12-24 | 西安近代化学研究所 | Grain friction test device under low-speed drop hammer impact loading |
| CN104266962A (en) * | 2014-10-15 | 2015-01-07 | 中国人民解放军国防科学技术大学 | Device for testing safety performance of explosive under impact and friction conditions |
Non-Patent Citations (2)
| Title |
|---|
| 刘彦: "不同厚度壳体装药在混凝土中爆炸的实验研究", 《北京理工大学学报》 * |
| 欧阳昌明: "冲击波和破片复合作用下装药起爆实验研究", 《爆炸与冲击》 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106977356A (en) * | 2017-05-03 | 2017-07-25 | 西安近代化学研究所 | A kind of cylinder test explosive press-fits mould |
| CN108225940A (en) * | 2017-09-18 | 2018-06-29 | 北京理工大学 | A kind of explosive shearing test system and test method |
| CN108226028A (en) * | 2018-01-09 | 2018-06-29 | 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 |
| CN108761027A (en) * | 2018-06-28 | 2018-11-06 | 中国工程物理研究院化工材料研究所 | High explosive low speed penetration control and high explosive low speed puncture experimental method |
| CN109406385A (en) * | 2018-12-14 | 2019-03-01 | 中国工程物理研究院流体物理研究所 | A kind of intrusion loading device suitable for cylindrical explosive substitute material |
| CN109406385B (en) * | 2018-12-14 | 2023-12-01 | 中国工程物理研究院流体物理研究所 | Invasive loading device suitable for cylindrical explosive substitute material |
| CN110231282B (en) * | 2019-06-04 | 2021-12-21 | 西安近代化学研究所 | Strain rate measuring device in explosive impact process |
| CN110231282A (en) * | 2019-06-04 | 2019-09-13 | 西安近代化学研究所 | A kind of explosive knockout process strain rate measuring device |
| CN110220840A (en) * | 2019-06-12 | 2019-09-10 | 西安近代化学研究所 | A kind of explosive accelerator and method |
| CN110187078B (en) * | 2019-06-12 | 2021-07-27 | 西安近代化学研究所 | Explosive accelerating device |
| CN110220840B (en) * | 2019-06-12 | 2021-07-27 | 西安近代化学研究所 | Explosive acceleration device and method |
| CN110187078A (en) * | 2019-06-12 | 2019-08-30 | 西安近代化学研究所 | A kind of explosive accelerator |
| CN111735761A (en) * | 2020-05-14 | 2020-10-02 | 济南大学 | Method and device for obtaining sliding friction coefficient of powder |
| CN111735761B (en) * | 2020-05-14 | 2023-06-02 | 济南大学 | Powder sliding friction coefficient acquisition method and device |
| CN111928992A (en) * | 2020-07-22 | 2020-11-13 | 北京理工大学 | Device for testing high-temperature pressure for burning test bomb |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105928871B (en) | 2019-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105928871A (en) | Forming explosive friction testing system and testing method thereof | |
| CN102621010B (en) | Multifunctional testing machine for deep surrounding rock anchoring performance | |
| CN110108571B (en) | Dynamic and static combined loading test device and test method | |
| CN103234830B (en) | Anchoring property experiment platform of anchor rod | |
| CN104912873B (en) | A kind of lateral force loading device of the hydraulic cylinder of simulated condition | |
| CN205843918U (en) | Slab and girder load identification and the multi-function test stand of non-destructive tests | |
| CN109211549B (en) | Structural component plane outer airbag loading test device | |
| CN107399652B (en) | A kind of elevator instantaneous kinetic energy measuring device applied in elevator detection | |
| CN103792055B (en) | A kind of impact load device that is applicable to small bridge quick diagnosis | |
| CN106092479A (en) | Slab and girder load identification and the multi-function test stand of non-destructive tests | |
| CN107101892A (en) | The lateral dead load of triaxial compressions reverses Rock And Soil test device under hole | |
| CN111060411B (en) | Intelligent rock mass creep shear testing machine and testing method | |
| CN109115637A (en) | A kind of fatigue impact combination loading structure pilot system | |
| Ambur et al. | A dropped-weight apparatus for low-speed impact testing of composite structures | |
| CN116399725B (en) | Anchor cable dynamic mechanical property testing method and system | |
| CN106680092B (en) | Coarse-grained soil strength and deformation characteristic measuring device based on vacuum negative pressure | |
| CN106052996B (en) | The compound wall bushing shock test device of extra-high voltage direct-current and test method | |
| CN105509683B (en) | Displacement measuring device for self-balancing pile testing method | |
| CN115615852A (en) | Device for measuring expansion stress of blasting crack of cyclic load lower model | |
| CN105973728B (en) | Hydraulic support rigidity destroys relationship experiments platform with rock strength under dynamic loading | |
| CN211401995U (en) | Low-energy-consumption automatic hard rock impact device with combination of moving pulleys and fixed pulleys | |
| RU142004U1 (en) | IMPACT STAND | |
| CN108225940A (en) | A kind of explosive shearing test system and test method | |
| KR101172746B1 (en) | Apparatus for testing wheel of roller coaster | |
| RU184648U1 (en) | STABILOMETER |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |