CN106353179A - Resonant three-point-bending high-temperature fatigue testing machine - Google Patents

Resonant three-point-bending high-temperature fatigue testing machine Download PDF

Info

Publication number
CN106353179A
CN106353179A CN201610862774.4A CN201610862774A CN106353179A CN 106353179 A CN106353179 A CN 106353179A CN 201610862774 A CN201610862774 A CN 201610862774A CN 106353179 A CN106353179 A CN 106353179A
Authority
CN
China
Prior art keywords
mainframe
static
driving lever
heating furnace
clamp
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
Application number
CN201610862774.4A
Other languages
Chinese (zh)
Other versions
CN106353179B (en
Inventor
***
李海波
丁竹生
吴建国
刘宝瑞
王龙
任方
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Academy of Launch Vehicle Technology CALT
Beijing Institute of Structure and Environment Engineering
Original Assignee
China Academy of Launch Vehicle Technology CALT
Beijing Institute of Structure and Environment Engineering
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Academy of Launch Vehicle Technology CALT, Beijing Institute of Structure and Environment Engineering filed Critical China Academy of Launch Vehicle Technology CALT
Priority to CN201610862774.4A priority Critical patent/CN106353179B/en
Publication of CN106353179A publication Critical patent/CN106353179A/en
Application granted granted Critical
Publication of CN106353179B publication Critical patent/CN106353179B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M7/00Vibration-testing of structures; Shock-testing of structures
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/32Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058Kind of property studied
    • G01N2203/0069Fatigue, creep, strain-stress relations or elastic constants
    • G01N2203/0073Fatigue

Landscapes

  • 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 invention discloses a resonant three-point-bending high-temperature fatigue testing machine. The machine is characterized in that a dynamic loading motion component is formed by mutually connecting a lower clamp, a driving rod, a power sensor, a static force sensor, a vibration exciting rod and a vibration exciter, wherein in order to enable the dynamic loading motion component to keep an axial single-freedom-degree motion, the dynamic loading motion component is transversely restricted on a main frame by utilization of a lower motion positioning spring sheet and an upper motion positioning spring sheet, and is only allowed to move up and down; a rigidity-adjustable spring is additionally arranged between the dynamic loading motion component and the main frame, so that a higher resonant frequency is obtained; an upper clamp is fixed on a static loading regulating device; a heating furnace is positioned on a heating furnace bracket; the main frame is fixed on a base; the heating furnace bracket and the base are placed on the ground. The high-temperature fatigue testing machine disclosed by the invention has the advantages that the resonant fatigue testing machine which can meet a high temperature environment is obtained through an integrated design of a fatigue testing machine and a high-temperature clamp, and therefore not only is the high-temperature environment requirement met, but also high-efficiency experiment requirements are met.

Description

3 points of curved high temperature fatigue testing machines of resonant mode
Technical field:
The present invention relates to 3 points of curved high temperature fatigue testing machines of resonant mode, belong to material and test field with structural mechanical property.
Background technology:
The fatigue test of material plays the role of important to the performance study of material and the integrity prediction of structure.Material is tired Labor testing equipment has electromagnetic resonance HF fatigue testing machine and electro-hydraulic servo formula fatigue machine.Compare electro-hydraulic servo formula fatigue Testing machine, electromagnetic resonance HF fatigue testing machine is mainly high working efficiency, be embodied in that operating frequency is high, test period is short, Energy expenditure is low, testing expenses are low, test waveform is good, abrasion is little, energy-conserving and environment-protective.Resonant mode HF fatigue testing machine is main abroad With Switzerland amdler and Britain's instron Products as representative, domestic development producer is Changchun Inst of Testing Machine and Red Hill Two, testing machine factory.But either external or domestic, all it is not specifically designed for the fatigue machine product of hot environment.When need When wanting hot environment fatigue test, typically use high temperature furnace as thermal environment simulation device, subjects are placed in high temperature furnace, with When need to design heat-resisting fixture, heat-resisting fixture one end clamp assay part, the other end is connected in the loading end of testing machine.Therefore, heat-resisting The design of fixture and its key, on the one hand hot environment to be born, on the other hand load to be transmitted and displacement, need to possess heat-resisting, Heat-insulated, force transfer capacity, volume can not be excessive, also needs possess enough rigidity simultaneously.Because fixture and connection design difficulty are big, because The pattern that this current fatigue machine increases temperature fixture is only limitted on the relatively low electro-hydraulic servo formula fatigue machine of operating frequency, Lead to test efficiency relatively low.Therefore, by the integrated design of fatigue machine and high-temperature clamp, using resonant mode fatigue test Machine principle, solves heat-resisting, heat-insulated, power transmission and rigidity requirement, is designed to meet the resonant mode fatigue experimental device of hot environment, Not only meet hot environment but also met high efficiency requirement of experiment, become fatigue test field focus of attention.
Content of the invention:
Present invention solves the technical problem that being: overcome the deficiencies in the prior art, provide the curved fatigue at high temperature of 3 points of resonant mode to try Test machine, by the integrated design of fatigue machine and high-temperature clamp, obtain the resonant mode fatigue examination that disclosure satisfy that hot environment Experiment device, had not only met hot environment but also had met high efficiency requirement of experiment.
The technical solution of the present invention is: 3 points of curved high temperature fatigue testing machines of resonant mode, including heating furnace, upper fixture, Lower clamp, heating furnace cradle, static load adjusting means, driving lever, dynamic pickup, static(al) sensor, exciting rod, vibrator, master Frame, adjustable rigidity spring, lower motion positions reed, upper motion positions reed, acceleration transducer and base;
Upper fixture and lower clamp coordinate for clamp assay part, and upper fixture one end is fixed in static load adjusting means, passes through Adjust static load adjusting means regulation upper fixture to move up and down, realize to testpieces static loading;
Mainframe is the hollow cylinder with upper lid, and described static load adjusting means is placed on and covers on mainframe, lower folder Tool bottom is connected with driving lever, and upper motion positions reed and lower motion positions reed are circular ring, upper motion positions spring Piece is enclosed within driving lever top, and lower motion positions reed is enclosed within driving lever bottom, upper motion positions reed and lower motion positions reed Outer circle wall be fixedly connected with mainframe inwall;Driving lever bottom is connected with acceleration transducer and dynamic pickup, Connected by connector between the interface of dynamic pickup and static(al) sensor, static(al) sensor passes through exciting rod and exciting simultaneously Device connects, and adjustable rigidity spring housing is in the junction of static(al) sensor and exciting rod, and fixes with static(al) sensor and exciting rod Connect, adjustable rigidity spring excircle is fixedly connected on mainframe inwall;
Heating furnace cradle be located at mainframe periphery, heating furnace cradle on be placed with heating furnace, when being assembled in place, upper fixture and The position that lower clamp is used for clamp assay part is located in heating furnace;
Mainframe is fixed on base, and heating furnace cradle and base are placed on the ground.
Lower clamp bottom is connected by elastic anchor ear device with driving lever, and described elasticity anchor ear device includes anchor ear, fastening Nut, spring washer and anchor ear overcoat, anchor ear is carbon fiber structure wide at the top and narrow at the bottom, is enclosed within lower clamp bottom, outside anchor ear It is provided with anchor ear overcoat, driving lever upper end outer wall is threaded, clamp nut is enclosed within the outer wall thread of driving lever upper end, spring Gasket sleeve, in driving lever periphery, between clamp nut and anchor ear overcoat, and is fastenedly connected with driving lever.
Multiple through holes are had on the wall of described mainframe side.
On described mainframe, lid envisaged underneath has guided way, and the leg of static load adjusting means passes through and covers on mainframe, and position In guided way.
Also include locking device, described locking device is located in static load adjusting means, when testpieces static loading puts in place, This locking device static load adjusting means can be locked on mainframe and cover.
Also include shock-absorbing leg, described base is placed on the ground by shock-absorbing leg, shock-absorbing leg bottom surface material is rubber Glue.
Compared with prior art, the invention has the following beneficial effects:
(1) present clip and testing machine integrated design, by rational integral layout, make upper fixture, lower clamp and Heating furnace is located at the topmost of testing machine, thus ensureing that other positions heating degrees are minimum, is that to realize hot environment resonant mode tired The key of labor test.
(2) current resonant mode fatigue machine does not possess rigidity adjuster, and it is real that the present invention passes through adjustable rigidity spring Existing stiffness tuning, is capable of different resonant frequencies.
(3) lower clamp and driving lever are connected using elastic anchor ear device, both ensure that thermally matched have enough rigidity again, Make locking using spring washer between clamp nut and anchor ear overcoat is compressed state simultaneously, makes junction point be difficult to expand damage Bad.
(4) testing machine structure compact in design of the present invention rationally, make itself resonant frequency higher (reaching 200hz) such that it is able to Realize higher operating frequency, substantially increase test efficiency, and easy and simple to handle, experimentation cost is low.
Brief description:
Fig. 1 is present configuration schematic diagram;
Fig. 2 is lower clamp and driving lever connection diagram.
Specific embodiment:
As shown in figure 1, the present invention proposes a kind of 3 points of curved high temperature fatigue testing machines of resonant mode, including heating furnace 1, upper fixture 2nd, lower clamp 3, heating furnace cradle 4, static load adjusting means, driving lever 7, dynamic pickup 8, static(al) sensor 9, exciting rod 10, Vibrator 11, mainframe 12, adjustable rigidity spring 13, lower motion positions reed 14, upper motion positions reed 15, acceleration sensing Device 18 and base 19.
Upper fixture 2 and lower clamp 3 coordinate for clamp assay part 5, and upper fixture 2 one end is fixed in static load adjusting means, Moved up and down by adjusting static load adjusting means regulation upper fixture 2, realize to testpieces static loading.
Mainframe 12 is the hollow cylinder with upper lid, and static load adjusting means is placed on and covers on mainframe 12, lower folder Have 3 bottoms to be connected with driving lever 7, upper motion positions reed 15 and lower motion positions reed 14 are circular ring, upper motion Positioning reed 15 is enclosed within driving lever 7 top, and lower motion positions reed 14 is enclosed within driving lever 7 bottom, upper motion positions reed 15 He The outer circle wall of lower motion positions reed 14 is fixedly connected with mainframe 12 inwall;Driving lever 7 bottom is connected with acceleration Sensor 18 and dynamic pickup 8, are connected by connector between the interface of dynamic pickup 8 and static(al) sensor 9, and static(al) passes Sensor 9 is connected with vibrator 11 by exciting rod 10 simultaneously, and adjustable rigidity spring 13 is enclosed within static(al) sensor 9 and exciting rod 10 Junction, and be fixedly connected with static(al) sensor 9 and exciting rod 10, adjustable rigidity spring 13 excircle is fixedly connected on mainframe On 12 inwalls.
Heating furnace cradle 4 is located at mainframe 12 periphery, and heating furnace cradle 4 is placed with heating furnace 1, when being assembled in place, on Fixture 2 and lower clamp 3 are used for the position of clamp assay part in heating furnace 1.
It is designed with reinforcement, for increasing mainframe rigidity, mainframe 12 is fixed on base 19, heating on mainframe 12 Furnace cradle 4 and base 19 are placed on the ground.
In the present invention, lower clamp 3, driving lever 7, dynamic pickup 8, static(al) sensor 9, exciting rod 10, vibrator 11 phase The composition that connects power loads moving parts, for keeping power to load moving parts axial direction single dof mobility, using lower motion Power is loaded moving parts lateral confinement on mainframe 12 by positioning reed 14, upper motion positions reed 15, only allows thereon Lower motion.Load in power and install adjustable rigidity spring 13 additional between moving parts and mainframe 12, to realize higher resonance Frequency.Load in power, on moving parts, dynamic pickup 8, static(al) sensor 9, acceleration transducer 18 are installed.Upper fixture 2 It is fixed on static load governor motion, static load governor motion can achieve relative up and down motion with mainframe 12.
Lower clamp 3 is in hot environment, and working environment reaches 1000 DEG C, and lower clamp 3 is connected with driving lever 7, because humorous The requirement of vibration frequency, connects and needs enough rigidity, but in order to reduce the design cost of driving lever 7, driving lever 7 adopts steel Material, can only tolerate 600 DEG C, and therefore lower clamp 3 and driving lever 7 junction point are selected in the bottom of lower clamp 3 so that junction point temperature Minimum.High temperature resistant for realizing upper lower clamp, select ceramic material, because ceramic material is more crisp, expanded by heating deforms, and junction point is to it Constraint is easily damaged to, i.e. junction point design is crucial, should ensure thermally matched there is enough rigidity again.Therefore junction point Connected using elastic anchor ear device, as shown in Fig. 2 elastic anchor ear device includes anchor ear 20, clamp nut 22, spring washer 23 and Anchor ear overcoat 24, anchor ear 20 is carbon fiber structure wide at the top and narrow at the bottom, is enclosed within lower clamp 3 bottom, is provided with and embraces outside anchor ear 20 Hoop overcoat 24, driving lever 7 upper end outer wall is threaded, and clamp nut 22 is enclosed within driving lever 7 upper end outer wall thread, spring pad Circle 23 is enclosed within driving lever 7 periphery, between clamp nut 22 and anchor ear overcoat 24, and is fastenedly connected with driving lever 7.Connect When, move on anchor ear overcoat 24 and lock anchor ear 20 so as to closely coupled with lower clamp 3 by locking clamp nut 22 and promoting, protect Demonstrate,prove enough coupling stiffnesses.Make locking using spring washer 23 between clamp nut 22 and anchor ear overcoat 24 is compressible shape simultaneously State, makes junction point be difficult to expand damage.
In order to ensure testing machine of the present invention at the trial to testpieces load static(al) do not fluctuate, the present invention is also devised with Locking device, this locking device is located in static load adjusting means, and when testpieces static loading puts in place, this locking device can be by Static load adjusting means is locked in and covers on mainframe 12.
In order to ensure that static load adjusting means strictly moves up and down in static loading, there is not left and right skew, the present invention exists On mainframe 12, lid envisaged underneath has guided way, and the leg of static load adjusting means passes through and covers on mainframe 12, and is located at guided way Interior.
A kind of way of realization of static load adjusting means of the present invention is to adjust rocking handle by static load governor motion, static load to form, quiet Load governor motion is placed on and covers on mainframe 12, and static load is adjusted rocking handle and is connected with static load governor motion, is adjusted by shaking static load Section rocking handle controls static load governor motion to move up and down, and realizes the static loading to testpieces.
In order to reduce testing machine weight, and also to convenient operate, mainframe 12 side wall has multiple through holes.
Mainframe bottom is connected with vibration damping supporting leg 16, and base 19 is placed on the ground by shock-absorbing leg 16, shock-absorbing leg 16 bottom surface materials are rubber.Thus mitigating vibration during test.
Testpieces 5 of the present invention, lower clamp 3, driving lever 7, dynamic pickup 8, static(al) sensor 9, exciting rod 10, vibrator Moving component, adjustable rigidity spring 13, lower motion positions reed 14, upper motion positions reed 15 constitute single-degree-of-freedom quality-bullet Spring system, mass fraction is made up of all moving-mass, and rigidity section is provided by adjustable springs and testpieces.Actual tests When, vibrator provides exciting source, is applied around sine excitation in above-mentioned single free mass-spring system resonant frequency, to realize Testpieces power is loaded.Upper fixture can be moved up and down by static load adjusting means, thus realizing to testpieces static loading. Acceleration transducer, static(al) sensor and dynamic pickup are used for deformation and the stress of experiment with measuring part.
Resonant mode fatigue machine under hot environment of the present invention, is set with the integrated of high-temperature clamp using fatigue machine Meter, by the selection of upper and lower clamp material, is capable of the material level fatigue test of 1000 DEG C of hot environments, simultaneously in power plus Carry and install adjustable rigidity spring additional between moving parts and mainframe, be capable of higher resonant frequency (up to 200hz), full Test efficiency is substantially increased on the basis of sufficient hot environment test requirements document, and low cost, compensate for high-temperature material resonant mode tired The blank of labor test.
The content not being described in detail in description of the invention belongs to the known technology of professional and technical personnel in the field.

Claims (6)

1. 3 points of curved high temperature fatigue testing machines of resonant mode it is characterised in that: include heating furnace (1), upper fixture (2), lower clamp (3), heating furnace cradle (4), static load adjusting means, driving lever (7), dynamic pickup (8), static(al) sensor (9), exciting rod (10), vibrator (11), mainframe (12), adjustable rigidity spring (13), lower motion positions reed (14), upper motion positions reed (15), acceleration transducer (18) and base (19);
Upper fixture (2) and lower clamp (3) coordinate for clamp assay part (5), and upper fixture (2) one end is fixed on static load adjusting means On, moved up and down by adjusting static load adjusting means regulation upper fixture (2), realize to testpieces static loading;
Mainframe (12) is the hollow cylinder with upper lid, and described static load adjusting means is placed on and covers on mainframe (12), Lower clamp (3) bottom is connected with driving lever (7), and upper motion positions reed (15) and lower motion positions reed (14) are circular Structure, upper motion positions reed (15) is enclosed within driving lever (7) top, and lower motion positions reed (14) is enclosed within driving lever (7) bottom, The outer circle wall of upper motion positions reed (15) and lower motion positions reed (14) is fixedly connected with mainframe (12) inwall; Driving lever (7) bottom is connected with acceleration transducer (18) and dynamic pickup (8), dynamic pickup (8) and static(al) sensor (9) connected by connector between interface, static(al) sensor (9) is connected with vibrator (11) by exciting rod (10) simultaneously, Adjustable rigidity spring (13) is enclosed within the junction of static(al) sensor (9) and exciting rod (10), and with static(al) sensor (9) and exciting Bar (10) is fixedly connected, and adjustable rigidity spring (13) excircle is fixedly connected on mainframe (12) inwall;
Heating furnace cradle (4) is located at mainframe (12) periphery, heating furnace cradle (4) is placed with heating furnace (1), is assembled in place When, the position that upper fixture (2) and lower clamp (3) are used for clamp assay part is located in heating furnace (1);
Mainframe (12) is fixed on base (19), and heating furnace cradle (4) and base (19) are placed on the ground.
2. 3 points of curved high temperature fatigue testing machines of resonant mode according to claim 1 it is characterised in that: lower clamp (3) bottom It is connected by elastic anchor ear device with driving lever (7), described elasticity anchor ear device includes anchor ear (20), clamp nut (22), bullet Spring packing ring (23) and anchor ear overcoat (24), anchor ear (20) is carbon fiber structure wide at the top and narrow at the bottom, is enclosed within lower clamp (3) bottom, It is provided with anchor ear overcoat (24), driving lever (7) upper end outer wall is threaded, and clamp nut (22) is enclosed within master outside anchor ear (20) At the outer wall thread of lever (7) upper end, spring washer (23) is enclosed within driving lever (7) periphery, outside clamp nut (22) and anchor ear Between set (24), and it is fastenedly connected with driving lever (7).
3. 3 points of curved high temperature fatigue testing machines of resonant mode according to claim 1 it is characterised in that: described mainframe (12) Multiple through holes are had on the wall of side.
4. 3 points of curved high temperature fatigue testing machines of resonant mode according to claim 1 it is characterised in that: described mainframe (12) Upper lid envisaged underneath has guided way, and the leg of static load adjusting means passes through the upper lid of mainframe (12), and is located in guided way.
5. 3 points of curved high temperature fatigue testing machines of resonant mode according to claim 1 it is characterised in that: also include locking dress Put, described locking device is located in static load adjusting means, and when testpieces static loading puts in place, this locking device can be by static load Adjusting means is locked in and covers on mainframe (12).
6. 3 points of curved high temperature fatigue testing machines of resonant mode according to claim 1 it is characterised in that: also include shock-absorbing leg (16), described base (19) passes through shock-absorbing leg (16) placement on the ground, and shock-absorbing leg (16) bottom surface material is rubber.
CN201610862774.4A 2016-09-28 2016-09-28 3 points of curved high temperature fatigue testing machines of resonant mode Active CN106353179B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610862774.4A CN106353179B (en) 2016-09-28 2016-09-28 3 points of curved high temperature fatigue testing machines of resonant mode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610862774.4A CN106353179B (en) 2016-09-28 2016-09-28 3 points of curved high temperature fatigue testing machines of resonant mode

Publications (2)

Publication Number Publication Date
CN106353179A true CN106353179A (en) 2017-01-25
CN106353179B CN106353179B (en) 2019-04-09

Family

ID=57865551

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610862774.4A Active CN106353179B (en) 2016-09-28 2016-09-28 3 points of curved high temperature fatigue testing machines of resonant mode

Country Status (1)

Country Link
CN (1) CN106353179B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110108565A (en) * 2019-06-05 2019-08-09 长春浩园试验机有限公司 High frequency composite electron universal testing machine
CN112836412A (en) * 2021-02-10 2021-05-25 西南电子技术研究所(中国电子科技集团公司第十研究所) Method for quickly simulating box-type vibration clamp

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2694257Y (en) * 2004-03-19 2005-04-20 长春仟邦测试设备有限公司 Resonant-type digitalized high-frequency fatigue-testing machine
CN101509856A (en) * 2008-12-30 2009-08-19 南京理工大学 Multifunction flexible composite material impact test apparatus
CN101666730A (en) * 2009-09-14 2010-03-10 中国人民解放军海军工程大学 Equipment for testing vibration performance of air spring and method of using the same for testing
CN101696920A (en) * 2009-10-27 2010-04-21 锦州万友机械部件有限公司 Fatigue testing device for lateral dynamic bending of piston rod of vibration damper
CN103954514A (en) * 2014-04-21 2014-07-30 华东理工大学 System and method for testing high-frequency fatigue life in high-temperature steam environment
CN104359778A (en) * 2014-10-23 2015-02-18 中国科学院金属研究所 High temperature and high pressure in-situ fretting wear test device
CN104777054A (en) * 2015-05-18 2015-07-15 浙江工业大学 Method for identifying parameters of resonant fatigue crack propagation test vibration system based on soft sensing technology
CN105004620A (en) * 2015-07-16 2015-10-28 浙江工业大学 High-frequency fatigue testing machine dynamic load error compensation method
CN105424520A (en) * 2015-11-24 2016-03-23 南京理工大学 Integrated device for testing fretting wear and fretting fatigue on surface of fastener
CN205342879U (en) * 2015-12-26 2016-06-29 青岛科技大学 High frequency fatigue machine combination formula clamping auxiliary device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2694257Y (en) * 2004-03-19 2005-04-20 长春仟邦测试设备有限公司 Resonant-type digitalized high-frequency fatigue-testing machine
CN101509856A (en) * 2008-12-30 2009-08-19 南京理工大学 Multifunction flexible composite material impact test apparatus
CN101666730A (en) * 2009-09-14 2010-03-10 中国人民解放军海军工程大学 Equipment for testing vibration performance of air spring and method of using the same for testing
CN101696920A (en) * 2009-10-27 2010-04-21 锦州万友机械部件有限公司 Fatigue testing device for lateral dynamic bending of piston rod of vibration damper
CN103954514A (en) * 2014-04-21 2014-07-30 华东理工大学 System and method for testing high-frequency fatigue life in high-temperature steam environment
CN104359778A (en) * 2014-10-23 2015-02-18 中国科学院金属研究所 High temperature and high pressure in-situ fretting wear test device
CN104777054A (en) * 2015-05-18 2015-07-15 浙江工业大学 Method for identifying parameters of resonant fatigue crack propagation test vibration system based on soft sensing technology
CN105004620A (en) * 2015-07-16 2015-10-28 浙江工业大学 High-frequency fatigue testing machine dynamic load error compensation method
CN105424520A (en) * 2015-11-24 2016-03-23 南京理工大学 Integrated device for testing fretting wear and fretting fatigue on surface of fastener
CN205342879U (en) * 2015-12-26 2016-06-29 青岛科技大学 High frequency fatigue machine combination formula clamping auxiliary device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
王建国: ""材料力学性能测试与评价技术发展"", 《工程与试验》 *
米亦农: ""国外高频疲劳试验机的发展状况"", 《工程与试验》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110108565A (en) * 2019-06-05 2019-08-09 长春浩园试验机有限公司 High frequency composite electron universal testing machine
CN110108565B (en) * 2019-06-05 2024-02-09 长春浩园试验机有限公司 High-frequency composite electronic universal testing machine
CN112836412A (en) * 2021-02-10 2021-05-25 西南电子技术研究所(中国电子科技集团公司第十研究所) Method for quickly simulating box-type vibration clamp
CN112836412B (en) * 2021-02-10 2023-11-28 西南电子技术研究所(中国电子科技集团公司第十研究所) Method for rapidly simulating box-type vibration clamp

Also Published As

Publication number Publication date
CN106353179B (en) 2019-04-09

Similar Documents

Publication Publication Date Title
CN201246436Y (en) Large damp heavy load vibration damper
CN106353179A (en) Resonant three-point-bending high-temperature fatigue testing machine
CN106702674A (en) Vibration detection device of washing machine
CN201876344U (en) Resonant vibration table with adjustable supporting rigidity
CN204942392U (en) A kind of bracket vibration damping structure of installing for sensor
CN109211583A (en) A kind of automobile power assembly active engine mount test-bed
CN208487149U (en) A kind of spring vibration-isolator
CN201513665U (en) Pressure-balancing type expansion joint with novel structure for bent pipe
CN106059392B (en) One kind realizes whole star self energizing active-passive integratedization Non-Linear Vibration control device
CN102409876B (en) Power-plant main power house structure arrangement system and power-plant main power house
CN109139787A (en) Extension spring formula quasi-zero stiffness vibration isolators
CN105675447B (en) Magnetorheological fluid interlayer force-transfer characteristic detection device under Composite Field
CN209430865U (en) A kind of novel pipeline hanger
CN206870576U (en) A kind of pressing device for clothes of new construction
CN213118267U (en) Reinforcing apparatus is used in boiler installation
CN213685091U (en) Durable generator shock absorber
CN206428589U (en) Bridge cable damping device
CN102447339A (en) Guide bearing rack support structure for hydraulic generator
CN201502830U (en) Duplex free type expansion joint for outlet of flue gas turbine of catalytic cracking device
CN204985501U (en) A support damping structure for sensor installation
CN208919207U (en) Extension spring formula quasi-zero stiffness vibration isolators
CN111425549A (en) Diesel generator installs damping device
CN210484491U (en) Single-degree-of-freedom wind tunnel model passive vibration suppression device based on multi-parameter optimization
CN106081168B (en) A kind of control-moment gyro rotor-support-foundation system absorbing damping unit
CN206329867U (en) A kind of engine damping adjusting bracket

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant