CN109030776A - Super gravity field experimental cabin liquid level adjusts simulator and analogy method - Google Patents
Super gravity field experimental cabin liquid level adjusts simulator and analogy method Download PDFInfo
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- CN109030776A CN109030776A CN201810738107.4A CN201810738107A CN109030776A CN 109030776 A CN109030776 A CN 109030776A CN 201810738107 A CN201810738107 A CN 201810738107A CN 109030776 A CN109030776 A CN 109030776A
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- 239000007788 liquid Substances 0.000 title claims abstract description 196
- 230000005484 gravity Effects 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims abstract description 10
- 238000010992 reflux Methods 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims description 17
- 238000010276 construction Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses super gravity field experimental cabin liquid levels to adjust simulator and analogy method, iterative motion is done by the piston rod of Hydraulic Cylinder liquid supply box, liquid in liquid supply box is pressed into or is discharged model casing liquid level adjustment region by circulation, keep the liquid in liquid supply box Ke Xunhuanliyong, avoids liquid and directly arrange to out of my cabin to machine room and the harm of environment bring；Liquid supply box bottom plate heights are lower than model casing bottom plate heights, and liquid level is made to form difference in height, realize regulatory demand when minimum liquid level is 0；From the angle of super gravity field g ', the amount of liquid of liquid supply box cylinder headroom size and storage is designed, the liquid level regulatory demand under different g ' is targetedly met；Moved up and down by Hydraulic Cylinder connecting rod, synchronize piston rod and move up and down: as piston rod moves down, the liquid in cylinder is pressed into liquid level adjustment region, realizes high liquid level；As piston rod moves up, the liquid reflux in cylinder realizes low liquid level, suitable liquid level is selected to be tested to cylinder.
Description
Technical field
The invention belongs to super gravity field analogue technique fields, and in particular to super gravity field experimental cabin liquid level adjusts simulator
And analogy method.
Background technique
Ground particle occurs to migrate to form piping or overflow top and burst under hydraulic power effect, causes dam body to destroy, hypergravity
It is a kind of liquid level analog machine applied to centrifuge test chamber that field liquid level, which adjusts simulator, by super gravity field proving ring
Liquid level is adjusted under border, variation of the dam body scaled model under different liquid levels is observed, to disclose the mechanism and formation of high dam breaking
Rule.
At present under super gravity field, liquid level increase realization rate be by test area individually for liquid, specific practice
It is to arrange fluid box on the ground, the liquid in fluid box is transmitted to centrifuge test chamber using rotary joint, realizes test
Area liquid level increases；Or fluid box is arranged on centrifuge pivoted arm, the liquid in fluid box using pivoted arm rotate to be formed from
Mental and physical efforts are got rid of into experimental cabin, realize that test area liquid level increases.The mode for being expelled directly out experimental cabin is taken in reduction for liquid level.
Though traditional liquid level regulation technology can increase, reduce liquid level, adjustment process cyclic utilization rate is poor, carries out test of many times
When, multiple liquid feeding body and multiple discharging liquid are needed, amount of liquid needed for fluid box need to store test of many times, storage amount of liquid is big, difficult
To carry out multiple cyclic test, and during liquid level reduction, the liquid of experimental cabin discharge is due to centrifugal rotation movement, Yi Fa
Raw atomizating phenomenon, when test of many times, the drain scale of construction is excessive, and the machine room environmental of causing is excessively moist, endangers machine room equipment.
We has developed a kind of super gravity field experimental cabin liquid level and adjusts simulator and simulation in order to solve problem above
Method.
Summary of the invention
The object of the invention is that providing a kind of super gravity field experimental cabin liquid level adjusting mould to solve the above-mentioned problems
Quasi- device and analogy method.
The present invention through the following technical solutions to achieve the above objectives:
Super gravity field experimental cabin liquid level adjusts simulator, comprising:
For storing the liquid supply box of test liquid；
Model casing, liquid supply box are connected to model casing by connecting tube；
For connecting with liquid supply box, and the liquid in liquid supply box can be sent into model casing by connecting tube, or pass through connection
Liquid in model casing is sent into the hydraulic cylinder of liquid supply box by pipe；
Specifically, liquid supply box includes the cylinder, piston, piston rod, connecting rod that a upper end is provided with opening, the bottom of cylinder
It is provided with the first confession, leakage fluid dram, piston is mounted in cylinder, the lower end of the upper end connection piston rod of piston, the upper end of piston rod
It is connect with connecting rod, the power output end of hydraulic cylinder is connect with connecting rod.
Specifically, model casing includes cabinet, dam body model, and dam body model is placed in cabinet, and in cabinet and dam body model
Between form liquid level adjustment region, the bottom of box of liquid level adjustment region is provided with the second confession, leakage fluid dram, first supplies, row
Liquid mouth and the second confession, leakage fluid dram pass through connecting tube and are connected to.
Preferably, hydraulic cylinder is two, and the middle part of piston rod and connecting rod connects, the power output end point of two hydraulic cylinders
It is not connect with the both ends of connecting rod.
Preferably, the bottom plate heights of liquid supply box are lower than the bottom plate heights of model casing.
Super gravity field experimental cabin liquid level adjusts analogy method, including is moved up and down by Hydraulic Cylinder connecting rod, makes to live
Stopper rod, which synchronizes, to be moved up and down: as piston rod moves down, the liquid in cylinder is pressed into liquid level adjustment region, realizes high liquid
Position；As piston rod moves up, the liquid reflux in cylinder realizes low liquid level, suitable liquid level is selected to be tried to cylinder
It tests.
It further includes the determination to the highest liquid level Hmax and cylinder headroom size R of cylinder that liquid level, which adjusts analogy method, is used
Following formula calculates:
Wherein ρ is the density of liquid；hBottomFor model casing bottom plate heights, HBottomFor liquid supply box bottom plate heights, Hmin is just to set cylinder
Body minimum liquid level；Hmax is the highest liquid level of the cylinder liquid storage scale of construction；R is cylinder headroom size；H is cylinder height；V is to test most
Greatly for amount of liquid；
It is determined according to the highest liquid level Hmax of (1) first formula cylinder liquid storage scale of construction of formula by H1, wherein model casing bottom
Plate height is greater than liquid supply box bottom plate heights: hBottom>HBottom, to meet regulatory demand when minimum liquid level H1 is 0；
Cylinder headroom size R is determined by test maximum for amount of liquid V；Just cylinder minimum liquid level Hmin is set as a determination
Value；Cylinder headroom radius R is obtained according to (1) second formula of formula；
The highest liquid level Hmax that cylinder height H has been obtained in is determined；Cylinder headroom size H > Hmax+ depth pistion.
The beneficial effects of the present invention are:
Super gravity field experimental cabin liquid level of the invention adjusts simulator and analogy method:
1, it is made of hydraulic cylinder, liquid supply box, model casing and connecting tube, is followed by the piston rod of Hydraulic Cylinder liquid supply box
Ring moves back and forth, and the liquid in liquid supply box is pressed into or is discharged model casing liquid level adjustment region by circulation, makes the liquid in liquid supply box
It is Ke Xunhuanliyong, it avoids liquid and directly arranges to out of my cabin to machine room and the harm of environment bring, more secure and reliable.
2, liquid supply box bottom plate heights are lower than model casing bottom plate heights, and liquid level is made to form difference in height, when realizing that minimum liquid level is 0
Regulatory demand.
3, super gravity field experimental cabin liquid level, which adjusts analogy method, can preferably be adapted to liquid level adjusting simulator.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of model casing in the present invention；
Fig. 3 is the working principle of the invention schematic diagram；
Fig. 4 is the structural schematic diagram of liquid supply box and hydraulic cylinder in the present invention.
In figure: 1, liquid supply box；11, cylinder；12, piston；13, piston rod；14, connecting rod；15, the first confession, leakage fluid dram；2,
Hydraulic cylinder；3, connecting tube；4, model casing；41, cabinet；42, dam body model；43, liquid level adjustment region；44, the second confession, drain
Mouthful.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings:
As shown in Figure 1, super gravity field experimental cabin liquid level adjusts simulator, comprising: for storing the confession of test liquid
Liquid case 1；Model casing 4, liquid supply box 1 are connected to model casing 4 by connecting tube 3；For being connect with liquid supply box 1, and can be by liquid supply box 1
Interior liquid is sent into model casing 4 by connecting tube 3, or the liquid in model casing 4 is sent into the two of liquid supply box 1 by connecting tube 3
A hydraulic cylinder 2；
As shown in figure 4, liquid supply box 1 includes the cylinder 11, piston 12, piston rod 13, connecting rod that a upper end is provided with opening
14, the bottom of cylinder 11 is provided with the first confession, leakage fluid dram 15, and piston 12 is mounted in cylinder 11, and the upper end of piston 12, which connects, lives
The upper end of the lower end of stopper rod 13, piston rod 13 is connect with connecting rod 14, and the power output end of hydraulic cylinder 2 is connect with connecting rod 14.
As shown in Fig. 2, model casing 4 includes cabinet 41, dam body model 42, dam body model 42 is placed in cabinet 41, and in case
Liquid level adjustment region 43 is formed between body 41 and dam body model 42, and 41 bottom of cabinet of liquid level adjustment region 43 is provided with the
Two confessions, leakage fluid dram 44, first supplies, leakage fluid dram 15 and the second confession, leakage fluid dram 44 are connected to by connecting tube 3.
Piston rod 13 is connect with the middle part of connecting rod 14, the power output end of two hydraulic cylinders 2 respectively with connecting rod 14
Both ends connection.
The bottom plate heights of liquid supply box 1 are lower than the bottom plate heights of model casing 4.
As shown in Figures 2 and 3, model casing 44 provides test dam body and test liquid level region, establishes super gravity field piping examination
Issue after examination and approval raw environment.
43 headroom of liquid level adjustment region is designed having a size of L × W, thus determines that one cycle is tested according to liquid level adjustable range
Maximum is for amount of liquid V, it is assumed that observation dam body liquid level adjustable range is H1-H2, then V=S × (L × W × H2), and wherein S is maximum
Liquid quantity correction coefficient.
Hydraulic cylinder 2 pushes connecting rod 14 to move up and down, and connecting rod 14 and piston rod 13 are connected, and synchronizes piston rod 13 and does
Lower movement: as piston rod 13 moves down, the liquid in cylinder 11 is pressed into liquid level adjustment region 43, realizes high liquid level；With
Piston rod 13 move up, the liquid reflux in cylinder 11 to cylinder 11, realize low liquid level, due in super gravity field g ' environment
Lower low liquid level reflux is different from ground normal environment, therefore realizes liquid level tune based on super gravity field g ' low liquid level pressure change technology
Section variation, to adapt to the super gravity field liquid level regulatory demand of different g '.
Cylinder 11 need to meet the liquid level variation that liquid level adjustment region 43 requires under super gravity field g ' environment, towards liquid-level-adjustable
Technical indicator designs 11 headroom size of cylinder.
The requirement for being H1-H2 based on 43 liquid level variation range of experimental cabin liquid level adjustment region designs 11 size of cylinder and examination
Test the liquid storage scale of construction are as follows:
11 headroom size of cylinder: R × H；
11 liquid storage scale of construction liquid level of cylinder variation: Hmin—Hmax。
To make the liquid in liquid supply box 11 that can realize the liquid level variation of H1-H2 at super gravity field g, environment, amount of liquid is needed
Following technical indicator need to be met greater than 11 size of cylinder:
Wherein ρ is the density of liquid.
Thus 11 size value of cylinder is determined according to formula (1):
(1) it is determined according to the highest liquid level Hmax of (1) first 11 liquid storage scale of construction of formula cylinder of formula by H1, wherein model
4 bottom plate heights of case are greater than 1 bottom plate heights of liquid supply box: hBottom>HBottom, to meet regulatory demand when minimum liquid level H1 is 0；
(2) 11 headroom size R of cylinder is determined by test maximum for amount of liquid V, to prevent piston 12 from touching with 11 bottom surface of cylinder
It hits, sets 11 minimum liquid level Hmin of cylinder just as a determining value, 11 headroom radius of cylinder is obtained according to (1) second formula of formula
R；
(3) 11 height H of cylinder is determined by the highest liquid level Hmax obtained in (1): to prevent the liquid in cylinder 11 from overflowing
Out, 11 headroom size H > Hmax+ piston of cylinder, 12 height.
To sum up, the liquid level regulation device under super gravity field g ' environment is devised, liquid level regulatory demand H1-H2, feed flow are based on
While case 1 realizes circulating feeding liquid body, meet the liquid level requirement under different g ' environment.
From the angle of super gravity field g ', the amount of liquid of 1 cylinder of liquid supply box 11 headroom size and storage, specific aim are designed
The liquid level regulatory demand met under different g '.
Device is not only limited to adjusting when liquid is water, when other liquid being adjusted under super gravity field, leads to
The ρ crossed in correction formula can be realized corresponding liquid level and adjust.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appending claims and equivalents circle
It is fixed.
Claims (7)
1. super gravity field experimental cabin liquid level adjusts simulator characterized by comprising
For storing the liquid supply box of test liquid；
Model casing, liquid supply box are connected to model casing by connecting tube；
For connecting with liquid supply box, and the liquid in liquid supply box can be sent into model casing by connecting tube, or will by connecting tube
Liquid in model casing is sent into the hydraulic cylinder of liquid supply box.
2. super gravity field experimental cabin liquid level according to claim 1 adjusts simulator, it is characterised in that: liquid supply box includes
One upper end is provided with the cylinder, piston, piston rod, connecting rod of opening, and the bottom of cylinder is provided with the first confession, leakage fluid dram, piston
It is mounted in cylinder, the lower end of the upper end connection piston rod of piston, the upper end of piston rod is connect with connecting rod, the power of hydraulic cylinder
Output end is connect with connecting rod.
3. super gravity field experimental cabin liquid level according to claim 2 adjusts simulator, it is characterised in that: model casing includes
Cabinet, dam body model, dam body model are placed in cabinet, and liquid level adjustment region is formed between cabinet and dam body model, are located at
The bottom of box of liquid level adjustment region is provided with the second confession, leakage fluid dram, and first supplies, leakage fluid dram and the second confession, leakage fluid dram pass through company
Adapter tube connection.
4. super gravity field experimental cabin liquid level according to claim 2 adjusts simulator, it is characterised in that: hydraulic cylinder two
A, the middle part connection of piston rod and connecting rod, the power output end of two hydraulic cylinders is connect with the both ends of connecting rod respectively.
5. super gravity field experimental cabin liquid level according to claim 1 adjusts simulator, it is characterised in that: the bottom of liquid supply box
Plate height is lower than the bottom plate heights of model casing.
6. super gravity field experimental cabin liquid level adjusts analogy method, which is characterized in that including by above and below Hydraulic Cylinder connecting rod
Mobile, synchronize piston rod and move up and down: as piston rod moves down, the liquid in cylinder is pressed into liquid level regulatory region
High liquid level is realized in domain；As piston rod moves up, the liquid reflux in cylinder realizes low liquid level, selection is suitable to cylinder
Liquid level is tested.
7. super gravity field experimental cabin liquid level according to claim 6 adjusts analogy method, it is characterised in that: liquid level adjusts mould
Quasi- method further includes the determination to the highest liquid level Hmax and cylinder headroom size R of cylinder, is calculated using following formula:
Wherein ρ is the density of liquid；hBottomFor model casing bottom plate heights, HBottomFor liquid supply box bottom plate heights, Hmin is just to set cylinder most
Low liquid level；Hmax is the highest liquid level of the cylinder liquid storage scale of construction；R is cylinder headroom size；H is cylinder height；V, which is that test is maximum, to be supplied
Amount of liquid；
It is determined according to the highest liquid level Hmax of (1) first formula cylinder liquid storage scale of construction of formula by H1, wherein model casing bottom plate is high
Degree is greater than liquid supply box bottom plate heights: hBottom>HBottom, to meet regulatory demand when minimum liquid level H1 is 0；
Cylinder headroom size R is determined by test maximum for amount of liquid V；Just cylinder minimum liquid level Hmin is set as a determining value；Root
Cylinder headroom radius R is obtained according to (1) second formula of formula；
The highest liquid level Hmax that cylinder height H has been obtained in is determined；Cylinder headroom size H > Hmax+ depth pistion.
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| CN201810738107.4A CN109030776A (en) | 2018-07-06 | 2018-07-06 | Super gravity field experimental cabin liquid level adjusts simulator and analogy method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113385309A (en) * | 2021-04-29 | 2021-09-14 | 浙江大学 | Liquid discharge control device and method for supergravity centrifugal model |
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Application publication date: 20181218 |