CN103760011A - Adjustable damping device of Hopkinson test rod piece - Google Patents
Adjustable damping device of Hopkinson test rod piece Download PDFInfo
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- CN103760011A CN103760011A CN201410029880.5A CN201410029880A CN103760011A CN 103760011 A CN103760011 A CN 103760011A CN 201410029880 A CN201410029880 A CN 201410029880A CN 103760011 A CN103760011 A CN 103760011A
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- base
- ring support
- test rod
- rod member
- buffer device
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Abstract
The invention discloses an adjustable damping device of a Hopkinson test rod piece. The adjustable damping device comprises a blocking cover, an annular support, a rubber rod, a rear blocking base and a base, wherein the annular support is fixedly connected with the base; the annular support is sleeved on the middle section of the rubber rod, the blocking cover is sleeved on one end of the rubber rod, the other end of the rubber rod is contacted with the rear blocking base fixedly connected to the base, and a gap is arranged between the blocking cover and the annular support. The adjustable damping device provided by the invention has the advantages that the structure is simple, the processing cost is low, the impact surplus energy is effectively fully absorbed, the good damping effect is guaranteed, and the signal interference is avoided.
Description
Technical field
The invention belongs to material dynamic mechanical studying technological domain, particularly a kind of adjustable buffer device of hopkinson test rod member.
Background technology
The adjustable buffer device of hopkinson test rod member is to require design according to the one-dimensional stress of Hopkinson experimental principle, the adjustable buffer device of rod member should meet effectively fully impact-absorbing complementary energy, guarantee again damping effect to the limit, avoided signal to disturb.Document " Dynamic properties of pulruded natural fiber reinforced composites using Split Hopkinson Pressure Bar technique " adopts T-shaped rigid mount, this structure almost can not absorbing rod part impact complementary energy, and bring larger vibration to whole experimental provision, this has just proposed higher requirement to the precision of testing table measuring-signal; Document " Dynamic material property characterization by using split Hopkinson pressure bar (SHPB) technique " has adopted a kind of more complicated energy absorption device structure, this mode complex structure, complex process, processing charges is high, this device is fixed in device substantially, adjustable extent is very little, thereby higher to the concentricity requirement of the absorbing rod in device.
Summary of the invention
The object of the present invention is to provide one simple in structure, processing cost is low, can meet effectively fully impact-absorbing complementary energy, can guarantee again good damping effect, has avoided the adjustable buffer device of the hopkinson test rod member of signal interference.
The technical solution that realizes the object of the invention is:
An adjustable buffer device for hopkinson test rod member, comprises door, ring support, rubber bar, rear block seat, base; Ring support and base are connected, and ring support is enclosed within the interlude of rubber bar, and one end cover of rubber bar has door, and the other end touches with the backstop seated connection being connected on base, gapped between door and ring support.
The present invention compared with prior art, its remarkable advantage:
(1) the present invention is simple in structure, not be conceived to realize testing requirements by complicated structure, but by limited part simple in structure by combining cleverly, meet testing requirements, the reliability of this device also increasing in convenient processing and manufacture and cost-effective while.
(2) all parts in apparatus of the present invention are all to process acquisition by common machine, machine work precision is higher, degree of accuracy that can assurance device, meet the consistance of device, thereby realize self horizontal direction and vertical direction on the high precision adjustment of position, when greatly saving material cost, also reduce machine work difficulty, effectively improved the precision of experimental provision.
(3) energy absorption device of the present invention has added the good elastomeric material of elastoplasticity, fully impact-absorbing complementary energy, thus effectively avoid impacting the impact shock that complementary energy is brought to experiment table, greatly reduce the disturbing factor of signals collecting, improved the reliability of this device.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural front view of the adjustable buffer device of hopkinson test rod member of the present invention.
Fig. 2 is the structure side view of the adjustable buffer device of hopkinson test rod member of the present invention.
Fig. 3 is the structure vertical view of the adjustable buffer device of hopkinson test rod member of the present invention.
Embodiment
In conjunction with Fig. 1～Fig. 3:
The adjustable buffer device of a kind of hopkinson test rod member of the present invention, comprises door 1, ring support 2, rubber bar 3, rear block seat 4, base 6; Ring support 2 is connected with base 6, and ring support 2 is enclosed within the interlude of rubber bar 3, and one end cover of rubber bar 3 has door 1, and the other end contacts with the rear block seat 4 being connected on base 6, gapped between door 1 and ring support 2.
Between ring support 2 and base 6, by reinforcement, be connected.Reinforcement connects with base 6 by coupling nut 5.Coupling nut 5 is symmetrical about base axis.
Ring support 2 is annulus.
Its principle of work is: this device is by rubber buffer rod 3 impact-absorbing complementary energy, and fender pile 3 is arranged in ring support 2.Door 1 is enclosed within rubber bar 3 head positions, reduces impact pressure, avoids in impact process rubber bar 3 load that is directly hit to damage.Between door 1 and ring support 2, there is interval, the reserved required space of deformation occurs while absorbing buffering complementary energy for rubber bar.When buffering complementary energy is larger, rear block seat 4 blocks rubber bar and reaches stable object.
Embodiment 1:
The adjustable buffer device of hopkinson test rod member, comprises door 1, ring support 2, rubber bar 3, rear block seat 4, base 6; Ring support 2 is annulus, and itself and base 6 welding are connected, and ring support 2 is enclosed within the interlude of rubber bar 3, and one end cover of rubber bar 3 has door 1, and the other end contacts with the rear block seat 4 that welding is connected on base 6, gapped between door 1 and ring support 2.
Embodiment 2:
An adjustable buffer device for hopkinson test rod member, comprises door 1, ring support 2, rubber bar 3, rear block seat 4, base 6; Ring support 2 is hollow out ring support, between itself and base 6, by reinforcement, is connected, and reinforcement connects with base 6 by coupling nut 5.Coupling nut 5 is symmetrical about base axis, ring support 2 is enclosed within the interlude of rubber bar 3, rubber buffer rod 3 and ring support 2 interference fit, one end cover of rubber bar 3 has door 1, the other end contacts with the rear block seat 4 being connected on base 6, gapped between door 1 and ring support 2, wherein, rear block seat 4 is connected by bolt with base 6.
Embodiment 3:
An adjustable buffer device for hopkinson test rod member, comprises door 1, ring support 2, rubber bar 3, rear block seat 4, base 6; Ring support 2 is annulus, between itself and base 6, by reinforcement, is connected, and reinforcement connects with base 6 by coupling nut 5.Coupling nut 5 is symmetrical about base axis, ring support 2 is enclosed within the interlude of rubber bar 3, rubber buffer rod 3 and ring support 2 interference fit, one end cover of rubber bar 3 has door 1, the other end contacts with the rear block seat 4 being connected on base 6, gapped between door 1 and ring support 2, wherein, rear block seat 4 is connected by welding with base 6.
Its principle of work is: in conjunction with Fig. 1, this device is by rubber buffer rod 3 impact-absorbing complementary energy, and fender pile 3 is arranged in ring support 2.Flexible by two about the support 2 symmetrical coupling nuts 5 in axis, side, adjusts ring support 2 vertical positions, and then is regulated the position of fender pile 3.Coupling nut 5 connects ring support 2 with base 6.Door 1 is enclosed within rubber bar 3 head positions, reduces impact pressure, avoids in impact process rubber bar 3 load that is directly hit to damage., while absorbing buffering complementary energy for rubber bar, there is the reserved required space of deformation in a bit of distance in interval between door 1 and ring support 2.When buffering complementary energy is larger, rear block seat 4 blocks rubber bar and reaches stable object.
Wherein, the method for vertical position of adjusting ring support 2 is: if need to heighten ring support 2, need to unscrew coupling nut 5, remove ring support 2 and reinforcement, between base 6 and reinforcement, pad is set, then fix reinforcement with coupling nut 5; If need to turn down ring support 2, need to remove pad.
In installation process, it should be noted that the axial location symmetry of setting nut 5 about support 2, object is the symmetrical position that regulates support; Rubber bar 3 and support 4 interference fit, prevent loosening and come off, thereby meet the requirement of test.
Claims (7)
1. an adjustable buffer device for hopkinson test rod member, is characterized in that, comprises door (1), ring support (2), rubber bar (3), rear block seat (4), base (6); Ring support (2) is connected with base (6), ring support (2) is enclosed within the interlude of rubber bar (3), one end cover of rubber bar (3) has door (1), and the other end contacts with the rear block seat (4) being connected on base (6), gapped between door (1) and ring support (2).
2. the adjustable buffer device of a kind of hopkinson test rod member according to claim 1, is characterized in that, between described ring support (2) and base (6), by reinforcement, is connected.
3. the adjustable buffer device of a kind of hopkinson test rod member according to claim 1, is characterized in that, described ring support (2) is annulus.
4. the adjustable buffer device of a kind of hopkinson test rod member according to claim 1, is characterized in that, described rubber buffer rod (3) and ring support (2) interference fit.
5. the adjustable buffer device of a kind of hopkinson test rod member according to claim 1, is characterized in that, described rear block seat (4) is connected by welding with base (6).
6. the adjustable buffer device of a kind of hopkinson test rod member according to claim 2, is characterized in that, described reinforcement connects with base (6) by coupling nut (5).
7. the adjustable buffer device of a kind of hopkinson test rod member according to claim 5, is characterized in that, described coupling nut (5) is symmetrical about base axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410029880.5A CN103760011B (en) | 2014-01-22 | 2014-01-22 | The adjustable buffer device of hopkinson test rod member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410029880.5A CN103760011B (en) | 2014-01-22 | 2014-01-22 | The adjustable buffer device of hopkinson test rod member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103760011A true CN103760011A (en) | 2014-04-30 |
| CN103760011B CN103760011B (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410029880.5A Expired - Fee Related CN103760011B (en) | 2014-01-22 | 2014-01-22 | The adjustable buffer device of hopkinson test rod member |
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| CN (1) | CN103760011B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908312A (en) * | 2017-03-29 | 2017-06-30 | 西安近代化学研究所 | A kind of Hopkinson bar is tested with anti-incident bar recoiling device |
| CN107703009A (en) * | 2017-10-27 | 2018-02-16 | 河海大学 | A kind of magnetic induction for SHPB experiments is tested the speed and anti-incident bar recoiling device |
| CN110057696A (en) * | 2018-12-18 | 2019-07-26 | 天津大学 | A kind of split hopkinson press bar with energy absorption device analog in-situ stress environment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0849583A1 (en) * | 1996-12-12 | 1998-06-24 | European Community | Split Hopkinson bar testing apparatus |
| US20020043099A1 (en) * | 2000-09-11 | 2002-04-18 | Kiyoto Maruoka | Viscoelastic characteristic value-measuring apparatus and method of measuring viscoelastic characteristic value |
| JP2006194595A (en) * | 2005-01-11 | 2006-07-27 | Jfe Techno Research Corp | Tensile test method and device |
| CN202676558U (en) * | 2011-12-01 | 2013-01-16 | 中国兵器工业集团第五三研究所 | Hopkinson rod impact shearing experiment device |
| CN203101162U (en) * | 2012-12-25 | 2013-07-31 | 湖南科技大学 | Rapid-heating-type quasi-static high-temperature split Hopkinson pressure bar experiment device |
| CN203148798U (en) * | 2013-04-15 | 2013-08-21 | 北京理工大学 | Micro dynamic tension/compression test system with preloading function |
| CN203688346U (en) * | 2014-01-22 | 2014-07-02 | 南京理工大学 | Adjustable buffer device of hopkinson test rod piece |
-
2014
- 2014-01-22 CN CN201410029880.5A patent/CN103760011B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0849583A1 (en) * | 1996-12-12 | 1998-06-24 | European Community | Split Hopkinson bar testing apparatus |
| US20020043099A1 (en) * | 2000-09-11 | 2002-04-18 | Kiyoto Maruoka | Viscoelastic characteristic value-measuring apparatus and method of measuring viscoelastic characteristic value |
| JP2006194595A (en) * | 2005-01-11 | 2006-07-27 | Jfe Techno Research Corp | Tensile test method and device |
| CN202676558U (en) * | 2011-12-01 | 2013-01-16 | 中国兵器工业集团第五三研究所 | Hopkinson rod impact shearing experiment device |
| CN203101162U (en) * | 2012-12-25 | 2013-07-31 | 湖南科技大学 | Rapid-heating-type quasi-static high-temperature split Hopkinson pressure bar experiment device |
| CN203148798U (en) * | 2013-04-15 | 2013-08-21 | 北京理工大学 | Micro dynamic tension/compression test system with preloading function |
| CN203688346U (en) * | 2014-01-22 | 2014-07-02 | 南京理工大学 | Adjustable buffer device of hopkinson test rod piece |
Non-Patent Citations (4)
| Title |
|---|
| ESSA Y. ET AL.: "Numerical simulation and experimental study of a mechanism for Hopkinson bar test interruption", 《JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN》, vol. 42, no. 3, 31 December 2007 (2007-12-31), pages 163 - 172 * |
| S. KENNETH ET AL.: "Improved Pulse Shaping to Achieve Constant Strain Rate and Stress Equilibrium in Split-Hopkinson Pressure Bar Testing", 《METALLURGICAL AND METERIALS TRANSACTIONS A》, vol. 38, 30 November 2007 (2007-11-30), pages 2655 - 2665, XP019695877 * |
| 胡时胜: "Hopkinson压杆实验技术的应用发展", 《实验力学》, vol. 20, no. 4, 31 December 2005 (2005-12-31), pages 589 - 594 * |
| 陈荣 等: "分离式Hopkinson压杆实验技术研究进展", 《力学进展》, vol. 39, no. 5, 25 September 2009 (2009-09-25), pages 576 - 587 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908312A (en) * | 2017-03-29 | 2017-06-30 | 西安近代化学研究所 | A kind of Hopkinson bar is tested with anti-incident bar recoiling device |
| CN106908312B (en) * | 2017-03-29 | 2019-04-19 | 西安近代化学研究所 | A kind of anti-incident bar recoiling device of Hopkinson bar test |
| CN107703009A (en) * | 2017-10-27 | 2018-02-16 | 河海大学 | A kind of magnetic induction for SHPB experiments is tested the speed and anti-incident bar recoiling device |
| CN107703009B (en) * | 2017-10-27 | 2020-05-05 | 河海大学 | Magnetic induction speed measurement and anti-incident rod recoil device for SHPB test |
| CN110057696A (en) * | 2018-12-18 | 2019-07-26 | 天津大学 | A kind of split hopkinson press bar with energy absorption device analog in-situ stress environment |
| CN110057696B (en) * | 2018-12-18 | 2022-01-28 | 天津大学 | Take energy-absorbing device can simulate normal position stress environment's disconnect-type hopkinson depression bar |
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| Publication number | Publication date |
|---|---|
| CN103760011B (en) | 2016-09-21 |
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