CN109870286A - A kind of big stroke waveshape generating device of tandem - Google Patents
A kind of big stroke waveshape generating device of tandem Download PDFInfo
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- CN109870286A CN109870286A CN201711265818.6A CN201711265818A CN109870286A CN 109870286 A CN109870286 A CN 109870286A CN 201711265818 A CN201711265818 A CN 201711265818A CN 109870286 A CN109870286 A CN 109870286A
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- inner casing
- cylinder piston
- interior
- generating device
- waveshape generating
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Abstract
The invention discloses a kind of big stroke waveshape generating devices of tandem, including two waveshape generating devices, it connects between two waveshape generating devices, water before preceding interior the cylinder piston 8 is compressed in inner casing 3 generates damping force, it also will push preceding inner casing 3 simultaneously to move, preceding inner casing 3 drives connecting rod 5 and the water in inner casing after rear interior the cylinder piston 9 together motion compresses.Technical solution of the present invention is by adjusting the number of opening damping hole and the discharge area of arrangement, regulating device, to generate prefabricated waveform.Since two groups of waveshape generating device compression speeds, configuration are different, relative to single-stage waveshape generating device, the waveform pulsewidth generated is higher, and stroke is bigger, and waveform adjustability is more preferable.
Description
Technical field
The invention belongs to impact test apparatus to develop field, be mainly used in needs and generate compared with HI high impact magnitude, and need
In the impact experiment of greater impact pulsewidth, the surge waveform of various requirement is generated.
Background technique
Landing of the ship-board aircraft on aircraft carrier is taken off generally using blocking warship, is had and sliding more taken off, is catapult-assisted take-off, vertical
The various ways such as short takeoff.
During blocking warship, body is subtracted under the action of arresting system in shorter distance with biggish deceleration
Speed, general pull-out distance is about in 110m or so, and maximum the warship speed of ship-board aircraft is up to 260km/h or so.
During catapult-assisted take-off, body is subtracted under motor power and ejection load synergy with biggish acceleration
Warship speed is flown away from speed to rising for requiring, and the effective travel of general ejector is in 90m or so, and warship speed one is flown away from rising for carrier-borne aircraft
As in 200km/h or more.
During launching and blocking, housing construction and airborne sorts of systems, equipment will be blocked shock loading and
The effect of shock loading is launched, the effect of this type shock loading will generate higher in the installation point of sorts of systems, equipment
Stress.According to correlative study, typical half-sine wave, peak can be reduced to by blocking impact suffered by structure in process and ejection process
Value can reach 6g, and pulsewidth is about 0.4~0.75s, and impact stroke maximum is up to 5m or so.
Surge waveform simulation is the key technology of impact test, common are deceleration test and two kinds of acceleration test productions
The method of raw surge waveform.Acceleration test is open loop test, and using power as control object, loading system applies to testing stand impacts
Power, and brake system applies opposite force to testing stand, the resultant force of two impact forces determines the amplitude and pulsewidth of impact.Deceleration
Test is similarly opened loop control, and under the action of acceleration system, the accelerated degree of testing stand arrives scheduled speed, then hits waveform
Generating device, waveshape generating device acts on deceleration damping force to testing stand, to generate the waveform of requirement.
The waveshape generating device range that the country uses at present is unable to satisfy carrier-borne aircraft airborne equipment, is in 2m or so
System blocks, launches impact test requirement.
Summary of the invention
For the restricted problem for solving current form generating device range, a kind of big stroke waveform hair of tandem is proposed
Generating apparatus.
Technical solution
A kind of big stroke waveshape generating device of tandem, which is characterized in that including two waveshape generating devices, two waveforms
It connects between generating device, the water before preceding interior the cylinder piston 8 is compressed in inner casing 3 generates damping force, while also will push preceding inner casing 3 and transporting
Dynamic, preceding inner casing 3 drives connecting rod 5 and the water in inner casing after rear interior the cylinder piston 9 together motion compresses.
The concatenated waveshape generating device specifically includes impact head 1, piston rod 2, preceding inner casing 3, damping hole 4, connection
Bar 5, rear inner casing 6, water collector 7, preceding interior the cylinder piston 8, rear interior the cylinder piston 9；
Wherein, impact head 1 is connected with 2 one end of piston rod, and 2 other end of piston rod is connected with preceding interior the cylinder piston 8, and preceding inner casing is living
Plug 8 and preceding 3 blind-mate of inner casing, are provided with several row's damping holes 4 on preceding inner casing 3, and 5 one end of connecting rod is connected with preceding inner casing 3,
The other end is connected with rear interior the cylinder piston 9, rear interior the cylinder piston 9 and rear 6 blind-mate of inner casing, water collector 7 and rear 6 phase of inner casing
Even.
The prefabricated internal screw thread in 4 upper end of damping hole, does not need Shi Keyou plug and obturages, according to waveform adjustment it needs to be determined that
Whether damping hole is obturaged, is open.
The water collector 7 is installed on outside cylinder body, is connected with cylinder body.
Detailed description of the invention
Fig. 1 is working principle of the present invention and structural schematic diagram；
Fig. 2 is appearance diagram of the present invention.
Fig. 3 is piston structure schematic diagram.
Fig. 4 is thick stick piston structure schematic diagram in rear.
Wherein, impact head 1, piston rod 2, preceding inner casing 3, damping hole 4, connecting rod 5, rear inner casing 6, water collector 7, preceding inner casing
Piston 8, rear interior the cylinder piston 9.
Beneficial effect
Technical solution of the present invention is by adjusting the number of opening damping hole and the flow surface of arrangement, regulating device
Product, to generate prefabricated waveform.Since two groups of waveshape generating device compression speeds, configuration are different, relative to single-stage waveform
Generating device, the waveform pulsewidth generated is higher, and stroke is bigger, and waveform adjustability is more preferable.
Specific embodiment
Technical solution of the present invention embodiment is described in detail with reference to the accompanying drawings of the specification.
The big stroke waveshape generating device of the tandem by impact head 1, piston rod 2, preceding inner casing 3, damping hole 4, connecting rod 5,
Inner casing 6, water collector 7, preceding interior the cylinder piston 8, rear interior the cylinder piston 9 are constituted afterwards.Preceding interior the cylinder piston 8, rear interior the cylinder piston 9 are installed respectively
In in preceding inner casing 3, rear inner casing 6, and inner casing blind-mate, when work, piston slides in inner casing, and the water compressed in inner casing is logical
Overdamp hole 4 consumes impact energy, generates damping force.Before the test, initial impact speed, inner casing are determined according to test waveform
Damping hole is closed number and specific location, wherein how to determine that the configuration of damping hole is the key technology of the present apparatus, is exerted by uncle
Sharp establishing equation impact system kinetic model, needed for going out waveshape generating device in different trips according to scheduled waveshape
Damping, so that it is determined that on inner casing each damping hole closure.The water level of water collector before the test is arranged it is ensured that filling in cylinder body
Full water, and enough spaces are reserved to accommodate the water come out by piston press.
Apparatus of the present invention work when with setting speed movement testpieces impact head 1 after, the two (testpieces, impact
It is first that 1) with identical speed compression tandem waveshape generating device, preceding interior the cylinder piston 8 compresses preceding inner casing 3, while generating damping force,
The preceding inner casing 3 of damping force drive, interior the cylinder piston 9 moves afterwards, afterwards the generation damping force of inner casing 6 after 9 motion compresses of interior the cylinder piston, and two
Damping force series connection acts on testpieces.Preceding inner casing 3 combines consumption test part bring impact energy with rear inner casing 6, and stroke is more single
A inner casing is doubled.It can be configured according to the damping hole of test impact energy and the preceding inner casing 3 of stroke reasonable Arrangement, rear inner casing 6,
3 or more inner casings can be even used, the energy-absorbing effect and impact stroke of waveshape generating device are improved.
Claims (4)
1. a kind of big stroke waveshape generating device of tandem, which is characterized in that including two waveshape generating devices, two waveform hairs
It connects between generating apparatus, the water before preceding interior the cylinder piston (8) is compressed in inner casing (3) generates damping force, while also will push preceding inner casing
(3) it moves, preceding inner casing (3) drives connecting rod (5) and the water in inner casing after rear interior the cylinder piston (9) together motion compresses.
2. the big stroke waveshape generating device of a kind of tandem according to claim 1, which is characterized in that described is concatenated
Waveshape generating device specifically includes impact head (1), piston rod (2), preceding inner casing (3), damping hole (4), connecting rod (5), rear inner casing
(6), water collector (7), preceding interior the cylinder piston (8), rear interior the cylinder piston (9)；
Wherein, impact head (1) is connected with piston rod (2) one end, and piston rod (2) other end is connected with preceding interior the cylinder piston (8), preceding interior
The cylinder piston (8) and preceding inner casing (3) blind-mate, are provided with several row's damping holes (4), connecting rod (5) one end on preceding inner casing (3)
It is connected with preceding inner casing (3), the other end is connected with rear interior the cylinder piston (9), rear interior the cylinder piston (9) and rear inner casing (6) blind-mate,
Water collector (7) is connected with rear inner casing (6).
3. the big stroke waveshape generating device of a kind of tandem according to claim 2, which is characterized in that the damping hole
(4) the prefabricated internal screw thread in upper end does not need Shi Keyou plug and obturages, according to waveform adjustment it needs to be determined that whether damping hole is obturaged, opened
Mouthful.
4. the big stroke waveshape generating device of a kind of tandem according to claim 2, which is characterized in that the water is collected
Device (7) is installed on outside cylinder body, is connected with cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711265818.6A CN109870286A (en) | 2017-12-04 | 2017-12-04 | A kind of big stroke waveshape generating device of tandem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711265818.6A CN109870286A (en) | 2017-12-04 | 2017-12-04 | A kind of big stroke waveshape generating device of tandem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109870286A true CN109870286A (en) | 2019-06-11 |
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ID=66916243
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711265818.6A Pending CN109870286A (en) | 2017-12-04 | 2017-12-04 | A kind of big stroke waveshape generating device of tandem |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111060275A (en) * | 2020-01-16 | 2020-04-24 | 中国工程物理研究院总体工程研究所 | Catapult take-off and arresting landing impact load simulation device and simulation method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210597A (en) * | 2006-12-29 | 2008-07-02 | 中国直升机设计研究所 | Hydraulic damping energy-absorbing device |
| CN101603879A (en) * | 2008-06-11 | 2009-12-16 | 上海奇谋能源技术开发有限公司 | A kind of method of simulated automotive collision complex curve and device |
| CN101832850A (en) * | 2010-03-22 | 2010-09-15 | 苏州苏试试验仪器有限公司 | Drop and crash safety test machine |
| KR20120053161A (en) * | 2010-11-17 | 2012-05-25 | 오성국 | Collision structure for shock simulator |
| CN103344402A (en) * | 2013-06-27 | 2013-10-09 | 南京航空航天大学 | Gradation loading impact test device and impact method thereof |
| CN105716821A (en) * | 2014-12-03 | 2016-06-29 | 中国飞机强度研究所 | Water tank type waveform generating device |
| CN106679922A (en) * | 2015-11-10 | 2017-05-17 | 中国飞机强度研究所 | System for actively controlling the generation of control load waveforms |
-
2017
- 2017-12-04 CN CN201711265818.6A patent/CN109870286A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210597A (en) * | 2006-12-29 | 2008-07-02 | 中国直升机设计研究所 | Hydraulic damping energy-absorbing device |
| CN101603879A (en) * | 2008-06-11 | 2009-12-16 | 上海奇谋能源技术开发有限公司 | A kind of method of simulated automotive collision complex curve and device |
| CN101832850A (en) * | 2010-03-22 | 2010-09-15 | 苏州苏试试验仪器有限公司 | Drop and crash safety test machine |
| KR20120053161A (en) * | 2010-11-17 | 2012-05-25 | 오성국 | Collision structure for shock simulator |
| CN103344402A (en) * | 2013-06-27 | 2013-10-09 | 南京航空航天大学 | Gradation loading impact test device and impact method thereof |
| CN105716821A (en) * | 2014-12-03 | 2016-06-29 | 中国飞机强度研究所 | Water tank type waveform generating device |
| CN106679922A (en) * | 2015-11-10 | 2017-05-17 | 中国飞机强度研究所 | System for actively controlling the generation of control load waveforms |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111060275A (en) * | 2020-01-16 | 2020-04-24 | 中国工程物理研究院总体工程研究所 | Catapult take-off and arresting landing impact load simulation device and simulation method |
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Application publication date: 20190611 |
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| RJ01 | Rejection of invention patent application after publication |