CN112067038A - Test platform for multi-physical field dynamic response under transient strong electric heating and mechanical loading device - Google Patents
Test platform for multi-physical field dynamic response under transient strong electric heating and mechanical loading device Download PDFInfo
- Publication number
- CN112067038A CN112067038A CN202010470640.4A CN202010470640A CN112067038A CN 112067038 A CN112067038 A CN 112067038A CN 202010470640 A CN202010470640 A CN 202010470640A CN 112067038 A CN112067038 A CN 112067038A
- Authority
- CN
- China
- Prior art keywords
- sample
- tested
- test platform
- current
- unit
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The application discloses a test platform which comprises a strong electric heat load, a mechanical loading device and an insulating clamp, wherein the insulating clamp clamps a sample to be tested, the mechanical loading device applies the mechanical load to the sample to be tested, and the strong electric heat load releases transient strong pulse current to the sample to be tested; the measuring system comprises at least one of a current testing unit, a temperature testing unit and an image shooting unit and a processing unit, wherein the current testing unit tests the current of the sample to be tested, the temperature testing unit tests the temperature of the sample to be tested, and the image shooting unit shoots the form of the sample to be tested. By arranging the metal material damage behavior experiment test platform integrating transient electric heating, mechanical force coupling loading, ultrahigh-speed micro-area temperature measurement and high-speed optical camera shooting, the multi-physical field response behavior of the material under the action of a transient strong electric heating and mechanical loading device can be measured and recorded, and the metal material damage behavior experiment test platform can be used as a material performance research means under an extreme loading condition.
Description
Technical Field
The invention belongs to the technical field of testing, and relates to a testing platform for multi-physical-field dynamic response under a transient strong electric heating and mechanical loading device.
Background
In the high-speed sliding electric contact process, the duration time of the sliding process of the track and the armature is very short, the working current is very large, generally hundreds of kiloamperes to megaamperes, and due to the skin-seeking property of the current, the local current density is very high, so that huge joule heat is generated instantly; the huge heat is not ready to be diffused in a short time, and the local heat accumulation causes the temperature of the material to be sharply increased and even reaches the melting point.
Limited by transient extreme load conditions, the current measurement and test mainly aims at macroscopic external parameters such as speed, magnetic field and the like, but research means for temperature, through flow and mechanical properties of materials are lacked. The main existing difficulties are the problem of simultaneous loading of the strong thermal field and the mechanical field on the one hand and the problem of synchronous measurement and recording of multi-field parameters on the other hand.
Disclosure of Invention
In order to solve the problems that a strong electrothermal field and a mechanical field are difficult to load simultaneously and multi-field parameter synchronous measurement and recording are difficult in the related technology, the application provides a test platform for multi-physical-field dynamic response under a transient strong electrothermal and mechanical loading device. The technical scheme is as follows:
the test platform for multi-physical field dynamic response under the transient strong electric heating and mechanical loading device comprises a loading system and a measuring system, wherein:
the loading system comprises a strong electric heat load, a mechanical loading device and an insulating clamp, wherein the insulating clamp is configured to clamp and fix a sample to be tested, the mechanical loading device applies a mechanical load to the sample to be tested, the strong electric heat load releases transient strong pulse current to the sample to be tested, and the insulating clamp insulates the clamped sample to be tested from an electric loop; the measuring system comprises a processing unit and at least one of a current testing unit, a temperature testing unit and an image shooting unit, wherein the current testing unit, the temperature testing unit and the image shooting unit are electrically connected with the processing unit; the current test unit is used for testing the transient strong pulse current of the sample to be tested, which is clamped by the mechanical loading device, the temperature test unit is right opposite to the sample to be tested and is installed to test the temperature of the sample to be tested, and the image pickup unit is right opposite to the sample to be tested and is installed to shoot the sample to be tested in the form change process of the sample to be tested.
Optionally, the high power thermal load includes a power frequency transformer, a high voltage rectifier, a pulse capacitor bank, an automatic charging stop circuit, and a discharge switch, wherein: the power frequency transformer is electrically connected with the input end of the rectifier, the output end of the rectifier is connected with the charging end of the pulse capacitor bank, the automatic charging stop circuit is connected with the control end of the power frequency transformer, the discharge switch is connected with the discharge end of the pulse capacitor bank, and the discharge end of the pulse capacitor bank is electrically connected with the sample to be tested.
Optionally, the power frequency transformer boosts the input two-phase alternating current mains supply, and a high-voltage signal output by the power frequency transformer is rectified by the high-voltage rectifier and then charges the pulse capacitor bank; when the pulse capacitor bank is charged to a preset voltage, the automatic charging stopping circuit controls the power frequency transformer to be powered off and stops charging the pulse capacitor bank; and triggering the discharge switch to be conducted, and discharging the pulse capacitor bank to the sample to be tested through the discharge switch.
Optionally, the capacitor bank includes two pulse capacitors, and a maximum energy storage of the capacitor bank is greater than or equal to 8 kilojoules.
Optionally, the insulating fixture includes two sets of oppositely disposed fixture assemblies, the two fixture assemblies are respectively used for clamping two parts of the middle portion of the sample to be tested, and two extending ends of the clamped sample to be tested are exposed out of the two fixture assemblies.
Optionally, each group of clamp assemblies comprises a connecting piece, an insulator, a clamp body, a stressing rod and two clamping blocks;
for each group of clamp assemblies, the clamp bodies and the clamping blocks are made of conductive materials, and the insulators are made of insulating materials;
the two clamping blocks are arranged in the clamp body, the connecting rod of the stress application rod is connected with one clamping block, and the stress application rod drives the connected clamping block to be clamped with the other clamping block;
the clamp body is connected with the connecting piece through the insulator, the connecting piece is configured to be connected with other over-current components, and the insulator insulates the sample to be tested from the electric loop.
Optionally, the current testing unit is a rogowski coil, wherein: the Rogowski coil is arranged around the sample to be tested, and when the current in the sample to be tested changes, the Rogowski coil induces electromotive force; the processing unit is configured to acquire the electromotive force generated by the Rogowski coil, and integrate the electromotive force to obtain the current in the sample to be tested.
Optionally, the temperature testing unit includes an optical fiber infrared thermometer and an LED target light for assisting in aiming the sample to be tested; the LED target light emits light to the sample to be detected, and light spots with diameters smaller than a preset value are formed on the sample to be detected; the optical fiber infrared thermometer is aligned to the light spot and collects the temperature generated by the sample to be measured; and the processing unit records the temperature acquired by the optical fiber infrared thermometer.
Optionally, the high-speed camera shoots material changes of the sample to be tested, and a camera of the high-speed camera is over against the sample to be tested to shoot the sample to be tested; the processing unit acquires the images shot by the high-speed camera for recording and/or analyzing processing.
Optionally, the transient high pulse current is greater than 50 kA.
Optionally, the measurement system further includes a mechanical load testing unit, and the mechanical load testing unit tests the mechanical load applied by the mechanical loading device.
Through the technical characteristics, the technical scheme provided by the application can at least realize the following beneficial effects:
by arranging the metal material damage behavior experiment test platform integrating transient electric heating, mechanical force coupling loading, ultrahigh-speed micro-area temperature measurement and high-speed optical camera shooting, the multi-physical field response behavior of the material under the action of a transient strong electric heating and mechanical loading device can be measured and recorded, and the test platform can be used as a performance research means of the material under an extreme loading condition and provides powerful support for an electromagnetic emission material technology.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic structural diagram of a test platform for multi-physical field dynamic response under a transient electrothermal and mechanical loading device according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an insulation clamp provided in an embodiment of the present application.
Wherein the reference numbers are as follows:
10. a sample to be tested; 20. loading the system; 21. strong electric thermal load; 22. a mechanical loading device; 23. an insulating clamp; 231. a connecting member; 232. an insulator; 233. a clamp body; 234. a stressing rod; 235. a clamping block; 30. a measurement system; 31. a current test unit; 32. a temperature test unit; 33. an image pickup unit; 34. and a processing unit.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Fig. 1 is a schematic structural diagram of a test platform for multi-physical field dynamic response under a transient electrothermal and mechanical loading device provided in an embodiment of the present application, which may include a loading system 20 and a measurement system 30.
The loading system 20 may include an intense thermal load 21, a mechanical loading device 22 and an insulating clamp 23, the insulating clamp 23 is configured to clamp and fix the sample 10 to be tested, the mechanical loading device 22 applies a mechanical load to the sample 10 to be tested, the intense thermal load 21 releases a transient intense pulse current to the sample 10 to be tested, and the insulating clamp 23 insulates the clamped sample 10 to be tested from an electrical circuit.
In one possible implementation, the strong thermal load 21 may include a power frequency transformer, a high voltage rectifier, a pulse capacitor bank, an automatic charge-stopping circuit, and a discharge switch, wherein: the power frequency transformer is electrically connected with the input end of the voltage rectifier, the output end of the voltage rectifier is connected with the charging end of the pulse capacitor bank, the automatic charging stop circuit is connected with the control end of the power frequency transformer, the discharge switch is connected with the discharge end of the pulse capacitor bank, and the discharge end of the pulse capacitor bank is electrically connected with the sample 10 to be tested.
In the implementation of discharging to the sample 10 to be measured, the power frequency transformer boosts the input two-phase alternating current commercial power, and a high-voltage signal output by the power frequency transformer is rectified by a high-voltage rectifier and then is charged to a pulse capacitor bank; when the pulse capacitor bank is charged to a preset voltage, the automatic charging stopping circuit sends a charging stopping signal to cut off the power frequency transformer contactor coil and stop charging the pulse capacitor bank, so that the charging is reliably stopped; then, the discharge switch is triggered to be conducted, and the pulse capacitor group discharges to the sample 10 to be measured through the discharge switch.
Optionally, the input voltage of the two-phase alternating current mains supply is AC 220V ± 10%, 50Hz, and the input power is 1 kW; the discharge voltage of the pulse capacitor bank is continuously adjustable and is 10kV at most, and the discharge current (namely the transient strong pulse current released to the sample 10 to be measured) is more than 50 kA.
In one implementation, the capacitor bank includes two pulse capacitors, the maximum energy storage of the capacitor bank may be greater than or equal to 8 kilojoules, and the two pulse capacitors may be MFM 60-10 type pulse capacitors.
The mechanical loading device 22 in the present application can be implemented by an EZ-LX long column type precision bench top single column tester. The measurement precision is 0.5% of the indicated value by matching with a 5kN high-precision load sensor, the minimum speed of the cross beam is 0.001mm/min, and the speed precision of the cross beam is within 0.1%. In order to pass high-density current pulses through the sample 10 to be tested without damaging the mechanical loading device 22, a specially-made clamp is used to insulate the mechanical loading device 22 from the electrical circuit.
Fig. 2 is a schematic structural diagram of an insulating fixture provided in an embodiment of the present application, and the insulating fixture 23 provided in the present application may include two sets of fixture assemblies disposed oppositely, where the two fixture assemblies are respectively used for clamping two portions of a middle portion of a sample 10 to be tested, and two extending ends of the clamped sample 10 to be tested are exposed outside the two fixture assemblies.
Each set of clamp assemblies includes a connector 231, an insulator 232, a clamp body 233, a force bar 234, and two clamp blocks 235.
For each set of clamp assemblies, the clamp body 233 and the clamp block 235 are made of conductive materials, and the insulator 232 is made of insulating materials.
The two clamping blocks 235 are arranged inside the clamp body 233, the connecting rod of the stressing rod 234 is connected with one of the clamping blocks, and the stressing rod 234 drives the connected clamping block to clamp with the other clamping block. For example, the force bar 234 rotates in a forward direction, the two clamping blocks 235 move closer to each other, the force bar 234 rotates in a reverse direction, and the two clamping blocks 235 move away from each other. A set of clamping assemblies has two clamping blocks 235 for clamping a portion of the middle section of the test sample 10.
The clamp body 233 is installed to be connected to the connector 231 through the insulator 232, the connector 231 is configured to be connected to other power transmission components, and the insulator 232 insulates the test sample 10 to be tested from the electric circuit.
The measuring system 30 may also comprise a mechanical load test unit which synchronously records the mechanical load. For example, the special TRAPEZIUM LITE X material experiment software is matched with an EZ-LX long-column precision table-type single-column experiment machine, and the synchronous recording of mechanical loads can be realized.
The measuring system 30 may include a processing unit 34, and at least one of a current testing unit 31, a temperature testing unit 32, and an image capturing unit 33, wherein the current testing unit 31, the temperature testing unit 32, and the image capturing unit 33 are electrically connected to the processing unit 34.
The current testing unit 31 tests the transient strong pulse current of the sample 10 to be tested held by the mechanical loading device 22, the temperature testing unit 32 is being installed on the sample 10 to be tested to test the temperature of the sample 10 to be tested, and the image capturing unit 33 is being installed on the sample 10 to be tested to capture the sample 10 to be tested during the morphological change of the sample 10 to be tested.
In one possible implementation, the current testing unit 31 may be a rogowski coil, in which: the Rogowski coil is arranged around the sample to be tested 10, and when the current in the sample to be tested 10 changes, the Rogowski coil induces electromotive force; the processing unit 34 is configured to obtain the electromotive force generated by the rogowski coil, and integrate the electromotive force to obtain the current in the sample 10 to be measured.
The working principle of the current test unit 31 is as follows: the Rogowski coil framework surrounds the sample 10 to be tested, the magnetic field around the sample 10 to be tested changes along with the change of the current in the sample 10 to be tested, and the enameled wire on the Rogowski coil framework can induce electromotive force; according to mathematical derivation, the electromotive force is in direct proportion to the derivative of the current in the Rogowski coil framework, the proportionality coefficient is related to the number of turns of the coil, the cross section of the framework, the magnetic permeability and the like, and the electromotive force can be integrated to reduce the current in the Rogowski coil framework.
When the temperature is tested, the temperature testing unit 32 comprises an optical fiber infrared thermometer and an LED target light for assisting in aiming at the sample 10 to be tested; the LED target light emits light to the sample to be tested 10, and light spots with the diameter smaller than a preset value are formed on the sample to be tested 10; aligning the optical fiber infrared thermometer to the light spot, and collecting the temperature generated by the sample 10 to be measured; the processing unit 34 records the temperature obtained by the fiber optic infrared thermometer.
In practical application, considering the current effect, a contact type temperature measurement method is not suitable, so for temperature measurement, an infrared non-contact type method is selected. In order to record the transient process, an IMPAC IGA 740-LO ultra-high-speed infrared thermometer is selected for temperature measurement. It has an ultra-fast response speed, and the response time is only 6 mus. Meanwhile, considering that an induced electromagnetic field can be excited in space under the action of strong pulse current in an experiment to cause interference on a test system, an optical fiber infrared thermometer is selected, a test head and a host are structurally separated, and radiation is transmitted through optical fibers, so that the measurement is not influenced by the electromagnetic interference. The optical fiber infrared thermometer is provided with LED target light for assisting in aiming at a measured object, the light spot range of the LED target light is the temperature measurement range, and the minimum radius of the light spot of the optical fiber infrared thermometer in an experiment is 0.5 mm. The analog output of the temperature measuring instrument is 0-10V, the temperature measuring range is 200-1000 ℃, and the analog output and the temperature are in a linear relation.
The mechanical strength of the material is reduced due to high temperature under a tensile stress field, and the material can be melted and splashed due to transient high temperature. Under the combined action of strong pulse current and mechanical load, the actual damage behavior of the material occurs in a very short time, in order to record the processes, the camera selected in the application is a high-speed camera, and the camera of the high-speed camera is shooting the sample 10 to be tested so as to shoot the sample 10 to be tested; the processing unit 34 acquires images taken by the high speed camera for recording and/or analysis processing.
Optionally, the high-speed camera selected in the present application may be an APX-RS type high-speed camera. The shooting rate used in the experiment was 50000fps, the shutter speed was 1/50000, the interval time between single pictures was 20 mus, and the picture frame was 256 × 512 pixels. Because the shooting speed is high and the shutter speed is high, even if the maximum aperture is adopted, the light inlet quantity under the natural condition is still insufficient, and in order to obtain a clear image, a tungsten lamp and a xenon lamp are arranged to supplement the light.
In an embodiment of the test, the test platform is configured such that the test sample 10 to be tested is placed in a mechanical loading environment of a mechanical loading device 22 (such as the above-mentioned testing machine), a pulse current is introduced from an extending end of the test sample 10 to be tested, a rogowski coil is arranged to perform current measurement and recording, a high-speed camera and a test head of a high-speed thermometer are fixed through a foot stand in a direction opposite to the test sample, and a host of the thermometer is connected and placed at a position far away from an experimental area through a 7 m-long optical fiber, so as to reduce an influence of electromagnetic interference on the test. The signal output of the rogowski coil and the signal output of the temperature gauge are connected via transmission lines to a processing unit 34, such as a Tektronix DPO 7104 digital oscilloscope, for recording and processing.
To sum up, the test platform that this application provided can measure and record the many physics field response behaviors of material under transient state strong electric heat and the mechanical loading device effect through setting up the metal material damage action experiment test platform that collects transient state electric heat, mechanical force coupling loading, hypervelocity micro-district temperature measurement and high-speed optics and make a video recording as an organic whole, can regard as the performance research means of material under the extreme loading condition, provides powerful support for the electromagnetic emission material technique.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. The utility model provides a test platform of many physics field dynamic response under transient state strong electric heat and mechanical loading device which characterized in that, test platform includes loading system and measurement system, wherein:
the loading system comprises a strong electric heat load, a mechanical loading device and an insulating clamp, wherein the insulating clamp is configured to clamp and fix a sample to be tested, the mechanical loading device applies a mechanical load to the sample to be tested, the strong electric heat load releases transient strong pulse current to the sample to be tested, and the insulating clamp insulates the clamped sample to be tested from an electric loop;
the measuring system comprises a processing unit and at least one of a current testing unit, a temperature testing unit and an image shooting unit, wherein the current testing unit, the temperature testing unit and the image shooting unit are electrically connected with the processing unit; the current test unit is used for testing the transient strong pulse current of the sample to be tested, which is clamped by the mechanical loading device, the temperature test unit is right opposite to the sample to be tested and is installed to test the temperature of the sample to be tested, and the image pickup unit is right opposite to the sample to be tested and is installed to shoot the sample to be tested in the form change process of the sample to be tested.
2. The test platform of claim 1, wherein the high thermal load comprises a power frequency transformer, a high voltage rectifier, a pulse capacitor bank, an automatic charging and discharging circuit, and a discharging switch, wherein: the power frequency transformer is electrically connected with the input end of the rectifier, the output end of the rectifier is connected with the charging end of the pulse capacitor bank, the automatic charging stop circuit is connected with the control end of the power frequency transformer, the discharge switch is connected with the discharge end of the pulse capacitor bank, and the discharge end of the pulse capacitor bank is electrically connected with the sample to be tested.
3. The test platform according to claim 2, wherein the power frequency transformer boosts the input two-phase alternating current commercial power, and a high-voltage signal output by the power frequency transformer is rectified by the high-voltage rectifier and then charges the pulse capacitor bank; when the pulse capacitor bank is charged to a preset voltage, the automatic charging stopping circuit controls the power frequency transformer to be powered off and stops charging the pulse capacitor bank; and triggering the discharge switch to be conducted, and discharging the pulse capacitor bank to the sample to be tested through the discharge switch.
4. The test platform of claim 2, wherein the capacitor bank comprises two pulse capacitors, and wherein the maximum energy storage of the capacitor bank is greater than or equal to 8 kilojoules.
5. The test platform according to claim 1, wherein the insulating fixture comprises two sets of oppositely arranged fixture components, the two fixture components are respectively used for clamping two parts of the middle part of the sample to be tested, and two extending ends of the clamped sample to be tested are exposed out of the two fixture components.
6. The test platform of claim 5, wherein each set of clamp assemblies comprises a connecting member, an insulator, a clamp body, a stressing rod and two clamping blocks;
for each group of clamp assemblies, the clamp bodies and the clamping blocks are made of conductive materials, and the insulators are made of insulating materials;
the two clamping blocks are arranged in the clamp body, the connecting rod of the stress application rod is connected with one clamping block, and the stress application rod drives the connected clamping block to be clamped with the other clamping block;
the clamp body is connected with the connecting piece through the insulator, the connecting piece is configured to be connected with other over-current components, and the insulator insulates the sample to be tested from the electric loop.
7. The test platform of claim 1, wherein the current test unit is a rogowski coil, wherein:
the Rogowski coil is arranged around the sample to be tested, and when the current in the sample to be tested changes, the Rogowski coil induces electromotive force;
the processing unit is configured to acquire the electromotive force generated by the Rogowski coil, and integrate the electromotive force to obtain the current in the sample to be tested.
8. The test platform of claim 1, wherein the temperature test unit comprises a fiber optic infrared thermometer and an LED target light for assisting in aiming the test sample to be tested;
the LED target light emits light to the sample to be detected, and light spots with diameters smaller than a preset value are formed on the sample to be detected;
the optical fiber infrared thermometer is aligned to the light spot and collects the temperature generated by the sample to be measured;
and the processing unit records the temperature acquired by the optical fiber infrared thermometer.
9. The test platform according to claim 1, wherein the high speed camera photographs the material change of the sample to be tested, and a camera of the high speed camera faces the sample to be tested to photograph the sample to be tested;
the processing unit acquires the images shot by the high-speed camera for recording and/or analyzing processing.
10. The test platform according to any one of claims 1-9, wherein the measurement system further comprises a mechanical load testing unit that tests the mechanical load applied by the mechanical loading device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010470640.4A CN112067038A (en) | 2020-05-28 | 2020-05-28 | Test platform for multi-physical field dynamic response under transient strong electric heating and mechanical loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010470640.4A CN112067038A (en) | 2020-05-28 | 2020-05-28 | Test platform for multi-physical field dynamic response under transient strong electric heating and mechanical loading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112067038A true CN112067038A (en) | 2020-12-11 |
Family
ID=73657722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010470640.4A Pending CN112067038A (en) | 2020-05-28 | 2020-05-28 | Test platform for multi-physical field dynamic response under transient strong electric heating and mechanical loading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112067038A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706726A (en) * | 2012-04-24 | 2012-10-03 | 清华大学 | Force-electricity coupling dynamic fracture experimental system |
| CN103234898A (en) * | 2013-04-15 | 2013-08-07 | 清华大学 | Ablation testing apparatus and method for applying load on-line |
| CN104390708A (en) * | 2014-12-18 | 2015-03-04 | 燕山大学 | Sliding electrical contact surface transient temperature detection device |
| CN104458012A (en) * | 2014-12-18 | 2015-03-25 | 燕山大学 | Sliding electric contact surface transient temperature detection system and method |
| CN104897460A (en) * | 2015-05-19 | 2015-09-09 | 吉林大学 | A test-piece clamp for multi-load coupling loading and a multi-physics field coupling loading method thereof |
| CN107192931A (en) * | 2017-07-18 | 2017-09-22 | 中国工程物理研究院流体物理研究所 | A kind of high-voltage pulse capacitor and switch synthesis experiment platform |
| CN108896106A (en) * | 2018-03-30 | 2018-11-27 | 北京理工大学 | A kind of list bubble collapse and more field measurement platforms of material boundary coupled characteristic |
| CN110579404A (en) * | 2019-09-12 | 2019-12-17 | 吉林大学 | In-situ test instrument and method for mechanical property of material under high-temperature complex mechanical load |
| 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 |
-
2020
- 2020-05-28 CN CN202010470640.4A patent/CN112067038A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706726A (en) * | 2012-04-24 | 2012-10-03 | 清华大学 | Force-electricity coupling dynamic fracture experimental system |
| CN103234898A (en) * | 2013-04-15 | 2013-08-07 | 清华大学 | Ablation testing apparatus and method for applying load on-line |
| CN104390708A (en) * | 2014-12-18 | 2015-03-04 | 燕山大学 | Sliding electrical contact surface transient temperature detection device |
| CN104458012A (en) * | 2014-12-18 | 2015-03-25 | 燕山大学 | Sliding electric contact surface transient temperature detection system and method |
| CN104897460A (en) * | 2015-05-19 | 2015-09-09 | 吉林大学 | A test-piece clamp for multi-load coupling loading and a multi-physics field coupling loading method thereof |
| CN107192931A (en) * | 2017-07-18 | 2017-09-22 | 中国工程物理研究院流体物理研究所 | A kind of high-voltage pulse capacitor and switch synthesis experiment platform |
| CN108896106A (en) * | 2018-03-30 | 2018-11-27 | 北京理工大学 | A kind of list bubble collapse and more field measurement platforms of material boundary coupled characteristic |
| 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 |
| CN110579404A (en) * | 2019-09-12 | 2019-12-17 | 吉林大学 | In-situ test instrument and method for mechanical property of material under high-temperature complex mechanical load |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Niordson | A unit for testing materials at high strain rates: By using ring specimens and electromagnetic loading, high strain rates are obtained in a tension test in a homogeneous, uniaxial strain field | |
| CN102680815B (en) | A kind of detection method of composite insulator interface and system | |
| CN104965113A (en) | Device used for mechanical property testing of high-temperature superconducting strip and detection method | |
| CN112305465B (en) | Measuring system and measuring method for determining fusing state of fuse wire in high-voltage capacitor | |
| CN102706726A (en) | Force-electricity coupling dynamic fracture experimental system | |
| CN112067038A (en) | Test platform for multi-physical field dynamic response under transient strong electric heating and mechanical loading device | |
| CN103257266A (en) | Portable all-insulation optical-fiber current detector | |
| CN112213601A (en) | Experimental device for simulating double-coil radial induced electric power impact accumulated deformation | |
| Meger et al. | NRL materials testing facility | |
| CN116297652A (en) | Test system and method for detecting collapse performance of iron-chromium-aluminum alloy | |
| Vakrilov et al. | Application of Infrared Imaging in the Field of Electrical Engineering | |
| Batut et al. | A transportable pulsed magnet system for fundamental investigations in quantum electrodynamics and particle physics | |
| Fikse et al. | The ELF-I augmented electromagnetic launcher | |
| CN210894570U (en) | Simulation system for fusing process of electrified rotating structural part | |
| EP2255917A1 (en) | Device for detecting the thickness of the material to be welded with a welder and related welder fitted with the device | |
| CN219608912U (en) | Test system for detecting collapse performance of iron-chromium-aluminum alloy | |
| McHenry | Generator insulation testing by continuous time-function application of direct voltage | |
| CN115656265B (en) | Arc protection integrated test system for arc-proof fabric and control method thereof | |
| Deis et al. | Experimental launcher facility-ELF-I: Design and operation | |
| Eberg et al. | Multi-stress cyclic testing of Roebel Stator Bars for Hydropower | |
| Valdiviez et al. | The final mechanical design, fabrication, and commissioning of a wire scanner and scraper assembly for halo-formation measurements in a proton beam | |
| KR20190044340A (en) | Superconductor connection property estimation apparatus and the method thereof | |
| CN220752249U (en) | Insulation detection equipment for electromechanical equipment | |
| CN113532802B (en) | Multi-fracture stroke consistency detection system and method for mechanical switch of direct current breaker | |
| Kacprzyk et al. | Stand for testing one-second short-circuit currents |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |