CN104089818B - A kind of experimental provision and its experimental technique for measuring the lower characteristic of material mechanics of heat flow piercement effect - Google Patents
A kind of experimental provision and its experimental technique for measuring the lower characteristic of material mechanics of heat flow piercement effect Download PDFInfo
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- CN104089818B CN104089818B CN201410276879.2A CN201410276879A CN104089818B CN 104089818 B CN104089818 B CN 104089818B CN 201410276879 A CN201410276879 A CN 201410276879A CN 104089818 B CN104089818 B CN 104089818B
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- circulating line
- foil gauge
- material section
- experimental
- heat flow
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Abstract
The invention discloses a kind of experimental provision and its experimental technique for measuring the lower characteristic of material mechanics of heat flow piercement effect, its device part includes pipe-line system, experimental bench, strain acquirement instrument, computer, material section and foil gauge；Permanent magnet is installed in material section to be stretched into pipeline by the fixture clamping setting of testing stand, adjustable electric magnet is provided with the outer surface of tube wall of material section top, it is additionally provided with the three groups of temperature-detecting devices and pressure-detecting device and strain acquirement instrument being connected with computer communication respectively；During experiment, timely adjustment electromagnetic force as needed, and then adjust the suffered active force of material section, by adjusting water pump discharge pressure and then adjusting water flow pressure.Experimental provision simple structure of the present invention, install with dismantle, using easy to operate, the need for fully meeting thermosetting stream coupling stress strain field simulated experiment；Its experiment process operation is easy, thermosetting stream coupling stress strain field stimulation is true and reliable, with precision higher.
Description
Technical field
The present invention relates to a kind of characteristic of material mechanics test device and its experimental technique, more particularly to one kind is for measuring heat
The experimental provision and its experimental technique of characteristic of material mechanics under fluid structure interaction.
Background technology
There presently does not exist the test device for the lower characteristic of material mechanics of heat flow piercement effect, do not test particularly
Material is in condition of high ground stress to the device of fatigue of materials intensity collection under the effect of material heat flow piercement.
The content of the invention
It is an object of the invention to provide a kind of apparatus structure is simple, flexible adjustment is easy consolidates for measuring hot-fluid
The experimental provision of characteristic of material mechanics under coupling.
To achieve the above object, the technical scheme for being used is that one kind measurement heat flow piercement acts on lower material to the present invention
The experimental provision of mechanical characteristic, including the section of pipe-line system, experimental bench, strain acquirement instrument, computer, material and stick to material
Foil gauge in material section；Characterized in that, the pipe-line system includes constant temperature water tank, the circulating line and water of a head and the tail connection
Pump；
A heater is provided with the constant temperature water tank；
Skylight is provided with the circulating line；
The testing stand includes fixture, and the fixture is used to clamp the material section；
The permanent magnet is plugged on the material section upper limb, and fixture described in the lower cause of the material section steps up；
The foil gauge is bonded in the bottom of the material slice surface, and perpendicular by the skylight together with material section
It is vertical to stretch into inside the circulating line；The permanent magnet keeps certain interval with the circulating line upper inner wall；The strain
Piece is integrally stretched into inside circulating line, and certain interval is retained between the bottom of foil gauge and tube wall below；
The foil gauge is connected with the strain acquirement instrument, computer successively；
The skylight includes removable seal plate, and the through hole for material section insertion is offered on the sealing plate；
After the material section is installed in place, the sealing plate is at it between material section, between the circulating line tube wall
It is respectively formed sealing；
The electromagnet is cut into slices centered on intersection point of the extended line with the outside wall surface on the circulating line top by the material,
It is fixed in the outside wall surface of the circulating line；
The water pump is driven by the motor with Frequency Converter Control；
The temperature-detecting device is arranged in pairs with pressure-detecting device, totally three pairs；Wherein, two pairs be symmetricly set on it is described
The left and right sides of experimental bench；Another surface to being arranged on the experimental bench；The temperature-detecting device is filled with pressure detecting
Put and be respectively communicatively coupled with the computer；
The electromagnet is also associated with adjustable rheostat between external power supply.
Preferably, above-mentioned foil gauge quantity is three, each foil gauge top is connected, tail end is flexed outward；Wherein two
Individual foil gauge is mutually perpendicular to, and the angle between another foil gauge and above-mentioned two foil gauge is 135 °.
Further preferably, above-mentioned heater is heated using electromagnetic variable-frequency mode of heating.
Further preferably, the experimental provision of the lower characteristic of material mechanics of above-mentioned measurement heat flow piercement effect also includes some
Pillar for supporting the fixation circulating line, the circulating line is fixed on correspondence by pipe clamp respectively at a certain distance
Pillar on；
The circulating line entirety ovalize, plane where its center axis and ground level into 30 ° of angles.
Further preferably, above-mentioned circulating line outer wall is provided with heat-insulation layer.
The technical effect directly brought by the technical proposal is that, whole experimental provision simple structure is installed and dismantles, uses
It is easy to operate, the need for fully meeting thermosetting stream lotus root combined stress variable field simulated experiment.
The second object of the present invention is to provide a kind of easy to operate, thermosetting flow field simulation experiment and really and accurately measures hot-fluid
Gu the experimental technique of characteristic of material mechanics under coupling.
The technical scheme that the present invention is used to achieve the above object is that one kind measurement heat flow piercement acts on lower material power
The experimental technique of the experimental provision of characteristic is learned, is comprised the following steps：
The first step, the material section that will be pasted with foil gauge is clamped by fixture, stretched into circulating line, and sealing plate is pacified
It is attached to position；
Second step, closes dewatering outlet, by filler to being added water in circulating line until fill it up with；
3rd step, connects the power supply of heater, to circulating line in after water temperature rises to design temperature, connect electromagnet
Power supply simultaneously starts water pump, empirically purpose, distinguishes or the alternately following operation of various combination mode：Standardsizing rheostat
Resistance and/or by frequency converter adjust water pump discharge pressure, until experimenter by computer analyze draw needed for experiment
As a result；
4th step, cuts off each power supply, opens dewatering outlet water discharge in circulating line is clean；
5th step, after dismantling sealing plate and changing different materials sections, is repeated in above-mentioned steps.
The technical effect directly brought by the technical proposal is that, temperature, liquid (water) flow velocity (pressure), material stress etc. become
Amount parameter can very easily carry out any regulation of various different combinations according to experiment purpose, so as to ensure to test people
Member needs to obtain really and accurately experimental result according to research, and its thermosetting stream coupling stress strain field stimulation is true and reliable, has
Precision higher.That is, the mechaanical property of materials is comprehensively determined under multi- scenarios method effect, and is obtained the fatigue of material and broken
Disconnected data, for the destruction correlation theory research of the lower material of heat flow piercement effect provides infrastest data supporting.
In sum, the present invention has the advantages that relative to prior art：
1st, experimental provision simple structure, install with dismounting, using easy to operate, can fully meet thermosetting stream lotus root combined stress and become
The need for field stimulation is tested；
2nd, experimentation is easy to operate, thermosetting stream coupling stress strain field stimulation is true and reliable, with precision higher；
3rd, experimental provision flexible adjustment is easy.
Brief description of the drawings
Fig. 1 is that the structural principle of the experimental provision of the present invention lower characteristic of material mechanics of measurement heat flow piercement effect is illustrated
Figure；
Fig. 2 is testing stand clamp structure schematic diagram；
Fig. 3 is material section and permanent magnet assembling structure schematic diagram；
Fig. 4 be the experimental provision for measuring the heat flow piercement lower characteristic of material mechanics of effect partial enlargement structural representation it
One (mainly shows that the foil gauge in experimental bench side surface direction, material section, the position connection between electromagnet and experimental bench are closed
System)；
Fig. 5 be the experimental provision for measuring the heat flow piercement lower characteristic of material mechanics of effect partial enlargement structural representation it
Two (mainly show that the foil gauge on experimental bench positive direction, material section, the position connection between electromagnet and experimental bench are closed
System).
In figure：1 water pump, 2 constant temperature water tanks, 3 foil gauges, the section of 4 materials, 5 pressure-detecting devices, 6 temperature-detecting devices, 9
Computer, 10 strain acquirement instrument, 11 water filling ports, 12 dewatering outlets, 13 pipe clamps, 14 pillars, 16 skylights, 17 sealing plates, 19 testing stands,
21 permanent magnets, 22 electromagnet, 23 rheostats, 24 circulating lines.
Specific embodiment
The present invention is further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, the experimental provision of the lower characteristic of material mechanics of present invention measurement heat flow piercement effect, including pipeline system
The foil gauge that system, experimental bench, strain acquirement instrument, computer, material are cut into slices and sticked in material section；
Above-mentioned pipe-line system includes the circulating line 24 and water pump 1 of the head and the tail connection of constant temperature water tank 2,；
A heater (not shown) is provided with constant temperature water tank 2；
Skylight 16 is provided with circulating line 24；
As shown in Fig. 2 testing stand 19 includes fixture 18, fixture 18 is used to clamp material section 4；
As shown in figure 3, permanent magnet 21 is plugged on material 4 upper limbs of section, the lower cause fixture 18 of material section 4 is clamped；
As shown in Figure 1, Figure 4, Figure 5, foil gauge 3 is bonded in the bottom on 4 surfaces of material section, and with one of material section 4
Erect by the skylight 16 and stretched into inside circulating line 24；Permanent magnet 21 keeps certain with the upper inner wall of the circulating line 24
Gap；The entirety of foil gauge 3 is stretched into inside circulating line 24, its bottom and lower section tube wall retain certain interval；Foil gauge 3 successively with
Circulating line external strain Acquisition Instrument 10, computer 9 is arranged on to connect；
Above-mentioned skylight 16 includes removable seal plate (not shown), is offered on sealing plate for material section insertion
Through hole；After material section is installed in place, sealing plate 17 is cut into slices between 4 in itself and the material by sealing ring, the ring pipe
Sealing is respectively formed between the tube wall of road 24；
Centered on intersection point of the above-mentioned electromagnet 22 by material section extended line with the outside wall surface on circulating line top, it is fixed on
In the outside wall surface of circulating line 24；
Water pump 1 is driven by the motor with Frequency Converter Control；
As shown in figure 1, said temperature detection means 6 is arranged in pairs with pressure-detecting device 5, totally three pairs；Wherein, two pairs it is right
Title is arranged on the left and right sides of experimental bench；Another surface to being arranged on the experimental bench 19；Upper temperature-detecting device 6 and pressure
Force checking device 5 is respectively communicatively coupled (not shown) with computer 9；
As shown in Figure 4, Figure 5, electromagnet 22 is also associated with adjustable rheostat 23 between external power supply.
As shown in figure 4, the quantity of above-mentioned foil gauge 3 is three, each foil gauge top is connected, tail end is flexed outward；Wherein
Two foil gauges are mutually perpendicular to, and the angle between another foil gauge and above-mentioned two foil gauge is 135 °.
Above-mentioned heater heats (not shown) using electromagnetic variable-frequency mode of heating.
As shown in figure 1, the experimental provision of the lower characteristic of material mechanics of above-mentioned measurement heat flow piercement effect also include it is some
Pillar 14 for supporting stationary annular pipeline, circulating line is fixed on corresponding pillar by pipe clamp respectively at a certain distance
On 14；
The overall ovalize of circulating line 24, plane where its center axis and ground level into 30 ° of angles.
Above-mentioned circulating line outer wall is provided with heat-insulation layer (not shown).
The experimental provision of the lower characteristic of material mechanics of measurement heat flow piercement of the invention effect, its experimental technique includes following
Step：
The first step, the material section that will be pasted with foil gauge is clamped by fixture, stretched into circulating line, and sealing plate is pacified
It is attached to position；
Second step, closes dewatering outlet, by filler to being added water in circulating line until fill it up with；
3rd step, connects the power supply of heater, to circulating line in after water temperature rises to design temperature, connect electromagnet
Power supply simultaneously starts water pump, empirically purpose, distinguishes or the alternately following operation of various combination mode：Standardsizing rheostat
Resistance and/or by frequency converter adjust water pump discharge pressure, until experimenter by computer analyze draw needed for experiment
As a result；
4th step, cuts off each power supply, opens dewatering outlet water discharge in circulating line is clean；
5th step, after dismantling sealing plate and changing different materials sections, is repeated in above-mentioned steps.
Claims (6)
1. it is a kind of to measure the experimental provision that heat flow piercement acts on lower characteristic of material mechanics, including pipe-line system, experimental bench, strain
The foil gauge that Acquisition Instrument, computer, material are cut into slices and sticked in material section；Characterized in that, the pipe-line system bag
Include constant temperature water tank, the circulating line and water pump of a head and the tail connection；
A heater is provided with the constant temperature water tank；
Skylight is provided with the circulating line；
The experimental bench includes fixture, and the fixture is used to clamp the material section；
Permanent magnet is plugged on the material section upper limb, clamp described in the lower cause of the material section；
The foil gauge is bonded in the bottom of the material slice surface, and is stretched by skylight setting together with material section
Enter inside the circulating line；The permanent magnet keeps certain interval with the circulating line upper inner wall；The foil gauge is whole
Body is stretched into inside circulating line, and certain interval is retained between the bottom of foil gauge and tube wall below；
The foil gauge is connected with the strain acquirement instrument, computer successively；
The skylight includes removable seal plate, and the through hole for material section insertion is offered on the sealing plate；It is described
After material section is installed in place, the sealing plate is at it between material section, equal shape between the circulating line tube wall
Into sealing；
Electromagnet is fixed on institute centered on material section intersection point of the extended line with the outside wall surface on the circulating line top
State in the outside wall surface of circulating line；
The water pump is driven by the motor with Frequency Converter Control；
Temperature-detecting device is arranged in pairs with pressure-detecting device, totally three pairs；Wherein, two pairs are symmetricly set on the experimental bench
The left and right sides；Another surface to being arranged on the experimental bench；The temperature-detecting device is with pressure-detecting device respectively
It is communicatively coupled with the computer；
The electromagnet is also associated with adjustable rheostat between external power supply.
2. measurement heat flow piercement according to claim 1 acts on the experimental provision of lower characteristic of material mechanics, and its feature exists
In the foil gauge quantity is three, and each foil gauge top is connected, tail end is flexed outward；Two of which foil gauge mutually hangs down
Directly, the angle between another foil gauge and above-mentioned two foil gauge is 135 °.
3. the measurement heat flow piercement according to claims 1 acts on the experimental provision of lower characteristic of material mechanics, its feature
It is that the heater is heated using electromagnetic variable-frequency mode of heating.
4. measurement heat flow piercement according to claim 1 acts on the experimental provision of lower characteristic of material mechanics, and its feature exists
In also including some pillars for supporting the fixation circulating line, the circulating line passes through respectively at a certain distance
Pipe clamp is fixed on corresponding pillar；
The circulating line entirety ovalize, plane where its center axis and ground level into 30 ° of angles.
5. the measurement heat flow piercement according to claims 1 acts on the experimental provision of lower characteristic of material mechanics, its feature
It is that the circulating line outer wall is provided with heat-insulation layer.
6. a kind of measurement heat flow piercement as claimed in claim 1 acts on the experiment side of the experimental provision of lower characteristic of material mechanics
Method, comprises the following steps：
The first step, the material section that will be pasted with foil gauge is clamped by fixture, is stretched into circulating line, and sealing plate is installed to
Position；
Second step, closes dewatering outlet, by filler to being added water in circulating line until fill it up with；
3rd step, connects the power supply of heater, to circulating line in after water temperature rises to design temperature, connect electromagnet power supply
And start water pump, empirically purpose, distinguishes or the alternately following operation of various combination mode：The resistance of standardsizing rheostat
And/or water pump discharge pressure is adjusted by frequency converter, until experimenter is analyzed by computer draws required experimental result；
4th step, cuts off each power supply, opens dewatering outlet water discharge in circulating line is clean；
5th step, after dismantling sealing plate and changing different materials sections, is repeated in above-mentioned steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410276879.2A CN104089818B (en) | 2014-06-19 | 2014-06-19 | A kind of experimental provision and its experimental technique for measuring the lower characteristic of material mechanics of heat flow piercement effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410276879.2A CN104089818B (en) | 2014-06-19 | 2014-06-19 | A kind of experimental provision and its experimental technique for measuring the lower characteristic of material mechanics of heat flow piercement effect |
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| Publication Number | Publication Date |
|---|---|
| CN104089818A CN104089818A (en) | 2014-10-08 |
| CN104089818B true CN104089818B (en) | 2017-06-16 |
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| CN201410276879.2A Expired - Fee Related CN104089818B (en) | 2014-06-19 | 2014-06-19 | A kind of experimental provision and its experimental technique for measuring the lower characteristic of material mechanics of heat flow piercement effect |
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| AU2019285660B2 (en) * | 2019-05-08 | 2021-02-25 | China University Of Mining And Technology, Beijing | Transparent constraint apparatus for normal deformation of planar model |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101059417A (en) * | 2007-05-10 | 2007-10-24 | 浙江理工大学 | Fluid-solid coupling analysis based erosion destruction invalidation quantitative forecast method |
| JP2012098104A (en) * | 2010-11-01 | 2012-05-24 | Oita Univ | Phase transformation behavior measuring method with consideration to accommodation behavior of polycrystalline shape memory alloy |
| CN203396647U (en) * | 2013-09-03 | 2014-01-15 | 郑州大学 | Device used for testing mechanical characteristics of heat fluid-solid coupling pipeline |
-
2014
- 2014-06-19 CN CN201410276879.2A patent/CN104089818B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101059417A (en) * | 2007-05-10 | 2007-10-24 | 浙江理工大学 | Fluid-solid coupling analysis based erosion destruction invalidation quantitative forecast method |
| JP2012098104A (en) * | 2010-11-01 | 2012-05-24 | Oita Univ | Phase transformation behavior measuring method with consideration to accommodation behavior of polycrystalline shape memory alloy |
| CN203396647U (en) * | 2013-09-03 | 2014-01-15 | 郑州大学 | Device used for testing mechanical characteristics of heat fluid-solid coupling pipeline |
Non-Patent Citations (2)
| Title |
|---|
| Study on fluid–solid coupling heat transfer in fractal porous medium by lattice Boltzmann method;Jun Cai et al.;《Applied Thermal Engineering》;20091204;第30卷;第715-723页 * |
| 反应堆堆芯围筒结构热流固耦合热变形分析;赵飞云等;《计算机辅助工程》;20120831;第21卷(第4期);第43-46页 * |
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Granted publication date: 20170616 Termination date: 20200619 |