GB2614606A - Electro-magneto-thermo-mechanical multi-field synchronous and dynamic loading device based on round wheel - Google Patents

Electro-magneto-thermo-mechanical multi-field synchronous and dynamic loading device based on round wheel Download PDF

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Publication number
GB2614606A
GB2614606A GB2217365.2A GB202217365A GB2614606A GB 2614606 A GB2614606 A GB 2614606A GB 202217365 A GB202217365 A GB 202217365A GB 2614606 A GB2614606 A GB 2614606A
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United Kingdom
Prior art keywords
round wheel
thermo
magneto
electro
driving shaft
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GB2217365.2A
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GB2614606B (en
GB202217365D0 (en
Inventor
Huang Liansheng
Zhang Xiuqing
Chen Xiaojiao
He Shiying
Li Chuan
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Hefei Institutes of Physical Science of CAS
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Hefei Institutes of Physical Science of CAS
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Publication of GB2614606A publication Critical patent/GB2614606A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
    • G01N3/38—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
    • G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001—Type of application of the stress
    • G01N2203/0005—Repeated or cyclic
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0019—Compressive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003—Generation of the force
    • G01N2203/0032—Generation of the force using mechanical means
    • G01N2203/0037—Generation of the force using mechanical means involving a rotating movement, e.g. gearing, cam, eccentric, or centrifuge effects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003—Generation of the force
    • G01N2203/005—Electromagnetic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003—Generation of the force
    • G01N2203/0057—Generation of the force using stresses due to heating, e.g. conductive heating, radiative heating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/022—Environment of the test
    • G01N2203/0222—Temperature
    • G01N2203/0226—High temperature; Heating means

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  • 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)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Electromagnetism (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

An electro-magneto-thermo-mechanical multi-field synchronous and dynamic loading device based on a round wheel, comprises; a carrier 1 for a test object 4, a round wheel 2, a pulse power supply 3, a driving shaft 5 and a pressure rod 6, the pulse power supply is connected to the carrier and the round wheel through a conductor, the round wheel is pressed against the upper surface of the test object through the pressure rod, the joint of the round wheel and the driving shaft is further in sleeve connection with a horizontal moving rod 7, and the round wheel and the driving shaft can reciprocate horizontally along with the horizontal moving rod. The device realises electromagnetic-thermo-mechanical synchronous control by regulating and controlling the output parameters of the pulse power supply, the pressure of the pressure rod and the rotating speed of the round wheel, to realise synchronous and dynamic loading in the extreme conditions of multi-field coupling.

Description

ELECTRO-MAGNETO-THERMO-MECHANICAL MULTI-FIELD SYNCHRONOUS
AND DYNAMIC LOADING DEVICE BASED ON ROUND WHEEL
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of test equipment, and specifically relates to an electro-magneto-thermo-mechanical multi-field synchronous and dynamic loading device based on a round wheel.
BACKGROUND
[0002] In the research and application fields of extreme electromagnetic energy, material science and high-end equipment, the synchronous appearance of the extreme conditions of el ectro-magneto-thermo-mechani cal multi-field coupling is concerned. In the extreme conditions of electro-magneto-thermo-mechanical coupling, there are enormous challenges to meet the material performance. At present, the existing electro-magneto-thermo-mechanical synchronous loading device can only realize static equivalent loading in some extreme conditions or low-parameter synchronous loading coupled with some conditions, cannot provide a testing environment for examining the damage phenomena of materials in the extreme conditions of electro-magneto-thermo-mechanical multi-field coupling and researching the material mechanism in the extreme conditions, and cannot solve the problems in electro-magneto-thermo-mechanical multi-field coupling extreme test conditions that the scientific research of extreme electromagnetic energy, material science and high-end equipment in national defense and industry faces.
SUMMARY
[0003] The present disclosure aims to provide an electro-magneto-thernm-mechanical multi-field synchronous and dynamic loading device based on a round wheel. The device comprises a carrier, a round wheel, a pulse power supply, a driving shaft and a pressure rod, wherein the round wheel is positioned above the carrier, the pulse power supply is connected to the carrier and the round wheel through a conductor, the round wheel is connected with the output end of the driving shaft, a test object is fixed on the carrier, the round wheel is pressed against the upper surface of the test object through the pressure rod, the joint of the round wheel and the driving shaft is further in sleeve connection with a horizontal moving rod, and the round wheel and the driving shaft can reciprocate horizontally along with the horizontal moving rod. [0004] As further optimization of the above-mentioned scheme, [0005] The carrier, the round wheel and the test object are all conductors.
[0006] As further optimization of the above-mentioned scheme, [0007] The pressure rod is vertically arranged at the joint of the driving shaft and the round wheel.
[0008] As further optimization of the above-mentioned scheme, [0009] The round wheel is connected with the output end of the driving shaft through a transmission shaft, the transmission shaft is connected to the center of the round wheel and vertical to the round wheel, the output end of the driving shaft is sequentially provided with a first coupling, an insulating gasket and a second coupling, and the other end of the second coupling is connected to the transmission shaft.
[0010] As further optimization of the above-mentioned scheme, [0011] The transmission shaft is further in sleeve connection with a conducting ring through a bearing.
[0012] As further optimization of the above-mentioned scheme, 100131 One output terminal of the pulse power supply is connected with the carrier through a wire, and the other output terminal of the pulse power supply is connected with the round wheel through the wire, the conducting ring and the transmission shaft.
[0014] As further optimization of the above-mentioned scheme, [0015] The surface of the round wheel is covered with a cladding, and the cladding is a conductor.
[0016] The device has the beneficial effects that electro-magneto-thermo-mechanical synchronous control is realized by regulating and controlling the output parameters of the pulse power supply, the pressure of the pressure rod and the rotating speed of the round wheel, and then synchronous and dynamic loading in the extreme conditions of electro-magneto-thermo-mechanical multi-field coupling is realized. The device is of great significance to research the damage phenomena and mechanism of materials under extreme electro-magneto-thermo-mechanical conditions.
[0017] Firstly, according to the electro-magneto-thermo-mechanical multi-field synchronous and dynamic loading device based on a round wheel, when working, the device can control the loading of required pressure and the rotating speed of the round wheel while the pulse current flowing through the test object is met. In the rotating process, a large amount of friction heat is generated due to friction with the test object, and combined with a large amount of Joule heat and arc heat generated by the pulse current, the surface temperature of the test object is increased sharply. At the same time, the pulse current generates a great electromagnetic force between the test object and the round wheel, and combined with the pressure of the pressure rod, friction force and thermal stress, the stress of the test object is increased rapidly, so that synchronous and dynamic loading in the extreme conditions of electro-magneto-thermo-mechanical multi-field coupling is realized.
[0018] Secondly, in the device, the round wheel is used for rotating with a moving axle, and horizontal sliding displacement is generated during the linear contact rolling friction. One planar test object can be tested, so that the whole measured plane is loaded with the same load. Thus, the effective contact area between the test object and the round equal-width wheel is enlarged, equivalently the test area is enlarged, so that the test approaches the actual application environment, and the data is more effective. By using the round wheel, besides testing in large-area and other conditions, the uniform application of the testing load capacity under the test condition can be realized, that is, all points on the tested area are high in consistency of the test load values, so that the research of the test object is greatly facilitated, and the round wheel is easy to process and manufacture.
BRIEF DESCRIPTION OF THE DRAWINGS
100191 The attached figures serve to provide further understanding of the present disclosure and constitute a part of the specification, together with embodiments of the present disclosure, serve to explain the present disclosure and do not constitute limitation of the present disclosure. In the attached figures, [0020] FIG. 1 is a structural schematic diagram of an electro-magneto-thermo-mechanical multi-field synchronous arid dynamic loading device based on a round wheel in the embodiment.
[0021] FIG. 2 is a structural schematic diagram of a round wheel, a driving shaft, a pressure rod and a horizontal moving rod in the embodiment.
[0022] FIG. 3 is an explosive schematic diagram of a round wheel, a driving shaft, a pressure rod and a horizontal moving rod in the embodiment.
[0023] Reference signs in the attached figures: 1, carrier; 2, round wheel; 21, transmission shaft; 22, cladding; 3, pulse power supply; 31_, wire; 4, test object; 5, driving shaft: 51, first coupling; 52, insulating gasket; 53, second coupling; 54, bearing; 55, conducting ring; 6, pressure rod; and 7, horizontal moving rod.
DETAILED DESCRIPTION OF THE EMBODIMENTS
100241 The present disclosure is further described in conjunction with the specific embodiments. The embodiments are merely used for illustrating the present disclosure without limiting the scope of the present disclosure.
[0025] Referring to FIG. 1 and FIG. 2, the embodiment provides an electro-magneto-thermo-mechanical multi-field synchronous and dynamic loading device based on a round wheel. The device comprises a carrier 1, a round wheel 2, a pulse power supply 3, a driving shaft 5, a pressure rod 6 and a horizontal moving rod 7. The round wheel 2 is positioned above the carrier 1. The carrier 1 is used for supporting and fixing a test object 4. The test object 4 is fixed on the carrier 1 through bolts or clamps. The carrier 1, the test object 4 and the round wheel 2 are all conductors. The round wheel 2 is connected with the output end of the driving shaft 5. The driving shaft 5 drives the round wheel 2 to rotate. The pressure rod 6 is vertically arranged at the joint of the round wheel 2 and the driving shaft 5, and applies downward pressure. The round wheel 2 is pressed against the upper surface of the test object 4. The horizontal moving rod 7 is in sleeve connection with the joint of the round wheel 2 and the driving shaft 5. The round wheel 2 and the driving shaft 5 can reciprocate horizontally along with the horizontal moving rod 7. The horizontal moving rod 7 moves along the horizontal direction parallel to the test object 4 while the round wheel 2 rotates. The contact rolling and sliding friction in surface contact with the surface of the test object 4 is formed.
[0026] According to the electro-magneto-thermo-mechanical multi-field synchronous and dynamic loading device based on a round wheel in the embodiment, through the action of the pressure rod 6, the round wheel 2 is pressed against the upper surface of the test object 4. Through the action of the driving shaft 5, the round wheel 2 is driven to rotate on the upper surface of the test object 4, and performs relative movement in linear contact with the test object 4. Through the action of the horizontal moving rod 7, the round wheel 2 is controlled to move along the horizontal direction parallel to the test object 4 while rotating, and the surface contact with the surface of the test object 4 is formed, so that the movement and friction of the test object 4 in practical application can be simulated more effectively.
100271 Referring to FIG. 3, further, the round wheel 2 is connected with the output end of the driving shaft 5 through a transmission shaft 21. The transmission shaft 21 is connected to the center of the round wheel 2 and vertical to the round wheel 2. The output end of the driving shaft is sequentially provided with a first coupling 51, an insulating gasket 52 and a second coupling 53. The insulating gasket 52 is sandwiched between the first coupling 51 and the second coupling 53. The other end of the second coupling 53 is connected to the transmission shaft 21. [0028] Referring to FIG. 2 and FIG. 3, further, a bearing 54 is sleeved at the joint of the transmission shaft 21 and the pressure rod 6. The bottom of the pressure rod 6 extends to make contact with the bearing 54. The pressure rod 6 applies downward pressure. The round wheel 2 is pressed against the upper surface of the test object 4. The pressure applied by the test object 4 is adjusted by the pressure rod 6.
100291 Referring to FIG. 1, further, the transmission shaft 21 is further in sleeve connection with a conducting ring 55 through a bearing 54. The conducting ring 55 can adapt to the high-speed rotating friction environment and is wear-resistant and high-temperature-resistant. One output terminal of the pulse power supply 3 is connected with the carrier 1 through a wire 31, and the other output terminal of the pulse power supply 3 is connected with the round wheel 2 through the wire 31, the conducting ring 55 and the transmission shaft 21. The surface of the round wheel 2 is covered with a cladding 22. The round wheel 2 and the cladding 22 are conductors. The loading device in the embodiment further comprises control measuring equipment. Through the measuring system, the pulse current, the pulse voltage, and the surface temperature, stress, electromagnetic field and other signals of the test object 4 are measured in real time, and the signals are sampled at a high speed.
[0030] According to the el ectro-magneto-thermo-m echani cal multi-field synchronous and dynamic loading device based on a round wheel in the embodiment, the measuring equipment is controlled to send a time sequence control signal to the pulse power supply 3, the driving shaft 5, the pressure rod 6 and the horizontal moving rod 7, so that the required pressure is synchronously loaded by the driving shaft 5 while the pulse current flowing through the test object 4 is met. The round wheel 2 is controlled to move horizontally whiling rotating at a high speed by the driving shaft 5 and the horizontal moving rod 7. In the high-speed rotating and moving process, the round wheel 2 is in equal-width surface contact with the test object 4, resulting in a large amount of friction heat. Combined with a large amount of Joule heat and arc heat generated by the pulse current, the surface temperature of the test object 4 is increased rapidly under the combined action of the friction heat, Joule heat and arc heat. A great electromagnetic force is generated between the test object 4 and the round wheel 2 due to the high pulse current. Combined with the pressure applied by the pressure rod 6, and the friction force and thermal stress between the wedge-shaped rotating body 2 and the test object 4, the stress of the test object 4 is increased rapidly, so that synchronous and dynamic loading in the extreme conditions of electro-magneto-thermo-mechanical multi-field coupling is realized. In addition, one planar test object 4 can be tested while the high-speed rotation of the round wheel 2 is realized, so that the whole measured plane is loaded with the same load. Thus, the effective contact area between the test object 4 and the round wheel 2 is enlarged, equivalently the test area is enlarged, so that the test approaches the actual application environment, and the data is more effective. By using the round wheel 2, besides testing in large-area and other conditions, the uniform application of the testing load capacity under the test condition can be realized, that is, all points on the tested area are high in consistency of the test load values, so that the research of the test object 4 is greatly facilitated.
100311 Further, in the embodiment, the power of the driving mechanism of the driving shaft.5 meets light-load starting under the pressure conditions, and the time for the driving shaft 5 to reach the required rotating speed is not more than a specified value (usually in millisecond level). The performance of the pressure rod 6 meets the pressure stability and accuracy under the high-speed rotation condition of the round wheel 2 driven by the driving shaft 5.
[0032] Although the present disclosure has been described in detail with reference to the foregoing embodiments, for those skilled in the art, modifications may still be made to the subject matter recited in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof. Any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present disclosure shall fall within the protection scope of the present disclosure.

Claims (7)

  1. WHAT IS CLAIMED IS: 1. An electro-magneto-thermo-mechanical multi-field synchronous and dynamic loading device based on a round wheel, comprising a carrier (1), a round wheel (2), a pulse power supply (3), a driving shaft (5) and a pressure rod (6), wherein the round wheel (2) is positioned above the carrier (1), the pulse power supply (3) is connected to the carrier (1) and the round wheel (2) through a conductor, the round wheel (2) is connected with the output end of the driving shaft (5), a test object (4) is fixed on the carrier (1), the round wheel (2) is pressed against the upper surface of the test object (4) through the pressure rod (6), the joint of the round wheel (2) and the driving shaft (5) is further in sleeve connection with a horizontal moving rod (7), and the round wheel (2) and the driving shaft (5) can reciprocate horizontally along with the horizontal moving rod (7).
  2. 2. The electro-magneto-thermo-mechanical multi-field synchronous and dynamic loading device based on a round wheel according to claim 1, wherein the carrier (1), the round wheel (2) and the test object (4) are all conductors.
  3. 3. The electro-magneto-thermo-mechanical multi-field synchronous and dynamic loading device based on a round wheel according to claim 1, wherein the pressure rod (6) is vertically arranged at the joint of the driving shaft (5) and the round wheel (2).
  4. 4. The electro-magneto-thermo-mechanical multi-field synchronous and dynamic loading device based on a round wheel according to claim 1, wherein the round wheel (2) is connected with the output end of the driving shaft (5) through a transmission shaft (21), the transmission shaft (21) is connected to the center of the round wheel (2) and vertical to the round wheel (2), the output cnd of thc driving shaft (5) is sequentially provided with a first coupling (51), an insulating gasket (52) and a second coupling (53), and the other end of the second coupling (53) is connected to the transmission shaft (21).
  5. 5. The electro-magneto-thermo-mechanical multi-field synchronous and dynamic loading device based on a round wheel according to claim 4, wherein the transmission shaft (21) is further in sleeve connection with a conducting ring (55) through a bearing (54).
  6. 6. The electro-magneto-thermo-mechanical multi-field synchronous and dynamic loading device based on a round wheel according to claim 5, wherein one output terminal of the pulse power supply (3) is connected with the carrier (1) through a wire (31), and the other output terminal of the pulse power supply (3) is connected with the round wheel (2) through the wire (31), the conducting ring (55) and the transmission shaft (21).
  7. 7. The electro-magneto-thermo-mechanical multi-field synchronous and dynamic loading device based on a round wheel according to claim 1, wherein the surface of the round wheel (2) is covered with a cladding (22), and the cladding (22) is a conductor.
GB2217365.2A 2021-11-22 2022-11-21 Electro-magneto-thermo-mechanical multi-field synchronous and dynamic loading device based on round wheel Active GB2614606B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111425929.5A CN116148109A (en) 2021-11-22 2021-11-22 Electromagnetic heating power multi-field synchronous dynamic loading device based on round wheel

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GB202217365D0 GB202217365D0 (en) 2023-01-04
GB2614606A true GB2614606A (en) 2023-07-12
GB2614606B GB2614606B (en) 2023-12-27

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204575463U (en) * 2015-03-27 2015-08-19 山西省交通科学研究院 Asphalt concrete pavement structure shear behavior dynamic studies equipment
US20200116660A1 (en) * 2018-10-11 2020-04-16 Fracturelab, Llc System for thermally influencing a crack tip of crack within a specimen and related methods
CN214622128U (en) * 2021-02-27 2021-11-05 江苏北极星工程技术研究院有限公司 Full-automatic accessible bituminous mixture rut test device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204575463U (en) * 2015-03-27 2015-08-19 山西省交通科学研究院 Asphalt concrete pavement structure shear behavior dynamic studies equipment
US20200116660A1 (en) * 2018-10-11 2020-04-16 Fracturelab, Llc System for thermally influencing a crack tip of crack within a specimen and related methods
CN214622128U (en) * 2021-02-27 2021-11-05 江苏北极星工程技术研究院有限公司 Full-automatic accessible bituminous mixture rut test device

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GB2614606B (en) 2023-12-27
CN116148109A (en) 2023-05-23
GB202217365D0 (en) 2023-01-04

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