CN108254157A - A kind of interior wave and the experimental system of submerged body interaction - Google Patents
A kind of interior wave and the experimental system of submerged body interaction Download PDFInfo
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- CN108254157A CN108254157A CN201810114516.7A CN201810114516A CN108254157A CN 108254157 A CN108254157 A CN 108254157A CN 201810114516 A CN201810114516 A CN 201810114516A CN 108254157 A CN108254157 A CN 108254157A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
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Abstract
The invention discloses a kind of interior wave and submerged body interaction experimental system, including：Submerged body model, movement simulated assembly, motion recording component and experimental tank, submerged body model include submerged body shell and the first clump weight, and the first clump weight is placed in submerged body shell.Therefore, interior wave provided in an embodiment of the present invention and the experimental system of submerged body interaction, utilize the connection of spherical hinge formula Hooks coupling universal coupling, submerged body is allowd to do the rotation in three directions relative to connecting rod, and record the X of submerged body in real time using three-dimensional electronic gyroscope, Y, the angular speed of Z-direction rotation, record submerged body X simultaneously, Y, the acceleration of Z-direction, utilize submerged body model in three pressure force snesors record interior estimates traveling process and the X on connecting rod, Y, interior estimates wave force on tri- directions of Z, and then record result is passed through into wire transmission to display, real-time display Aerodynamic data, and it is recorded in data file.
Description
Technical field
The present invention relates to internal wave of ocean experimental technique field more particularly to a kind of interior wave and the experiment systems of submerged body interaction
System.
Background technology
Internal wave of ocean is a kind of wave betided below seawater surface, is a kind of gravitational wave or for interior inertia
Gravitational wave.Recent decades, various countries experts and scholars have found that interior wave is a kind of non-in ocean by actual measurement or remote sensing observation
The natural phenomena usually seen.Km differs the wave-length coverage of interior wave generally from hundreds of meters to tens in ocean, period from a few minutes
To a few houres etc..In the seawater of continuous stratification, the density gradient that cold water, hot water or fresh water, brine generate is usually
It is smaller, but just because of this density gradient very little, cause the disturbance needed for the catenary motion of layering interfaces Shanghai water particle
With regard to very little.Briefly, the disturbance of foot may form interior wave in the marine site that density of sea water is layered.Also just because of formation
The disturbance very little that interior wave needs, the amplitude of interior wave would generally specific surface wave it is much larger, generally from several meters to rice up to a hundred etc., at present
Until the maximum Internal wave amplitude that observes be 180m.Interior wave causes the catenary motion of seawater to the energy transport in Yu Haiyang to pass
Important, the energy of marine superstructure can be reached deep layer by it, and the colder seawater of deep layer is taken to relatively warm shallow-layer together with nutriment,
Promote multiplying and living for marine organisms.Inner waveguide causes the fluctuation of seawater isopycnic surface, influences the size and Orientation uniformity of the velocity of sound,
Influence to sonar is very big, and it is underwater hidden to be conducive to submarine.The one side that interior wave also has its harmful, Nei Bo is as surface wave
Offshore Units can be impacted, interior wave also suffers from significantly influencing on boat trip and navigation of submarine.It is especially interior isolated
Wave, wave-length coverage are differed from tens kms to hundreds of kms, and nonlinear characteristic is very strong, and period of change is in several hours, sky
Between scale differed to several kms for hundreds of meters.Interior estimates be often as it is interior tide advance during meet with sea-floor relief influence and
It is formed, this fluctuation endangers submarine navigation device very big.When submarine meet with interior estimates when, the powerful velocity field of interior wave and
Pressure field can tow to submarine deep water, and huge hydraulic pressure can destroy Submarine structure and be allowed to broken；When submarine crosses interior estimates
Wave crest when, extremely strong steering force may also can cause Submarine Structure to be broken.
The research of the forms of motion for submarine in interior estimates is less both at home and abroad at present, is also mostly in existing research
Theoretical research.Such as：There is wave in scholar's property research cycle to interact with submerged body, obtain identical latent depths, submerged body model
It can be increased horizontal with vertical by interior wave wave force and torque with interior wave period and wave amplitude increase, submerged body model jumps in density
Layer place is by interior wave wave force maximum, and in periodicity under wave excitation, submerged body model has the Nonlinear Dynamic Responses phenomenon such as frequency multiplication
The notional result of generation.Submerged body is done with interior wave in the research of coupled motions and is found, submarine's moving response shows wave frequency spy
It seeks peace gradual drift, wave wave frequency does heaving and pitching within submerged body one side, on one side slowly drift upwards.In addition, in needle
Model test done to the coupled motions form of interior estimates effect diving body, experimental provision is by submerged body model semi-flexible rope
It is fixed in interior wave sink.
However, studies conducted in the prior art, the theoretical research of the submerged body coupled motions under being acted on for interior estimates,
Experimental data can not be accurately obtained, so as to reduce accuracy；Also, in the experimental facilities of the prior art, due to consolidating for flexible strand
Fixed and elastic force, the forms of motion of submerged body can be largely showed using fixed point as the center of circle, the model of a length of radius of flexible strand
Interior circular motion is enclosed, the submarine's moving form under being acted on so as to cause experimental state with practical interior estimates is not consistent, and reduces
Test accuracy.
Invention content
An embodiment of the present invention provides a kind of interior waves and the experimental system of submerged body interaction, solve wave in the prior art
The problem of low with the experimental system accuracy of submerged body interaction.
Interior wave provided by the invention and the experimental system of submerged body interaction, including：Submerged body model, movement simulated assembly,
Motion recording component and experimental tank, the submerged body model include submerged body shell and the first clump weight, and first clump weight is placed in
In the submerged body shell；The movement simulated assembly includes X direction guiding rails, Y-direction guide rail, Z-direction guide rail, spherical hinge formula universal joint shaft
Device, connecting rod and sliding block, the X direction guiding rails are flatly erected at experimental tank overhead, and the Y-direction guide rail is slidably arranged in institute
It states on X direction guiding rails, and vertical with the Y-direction guide rail, the sliding block is slidably arranged in the Y-direction guide rail, the submerged body mould
Type is connect by the spherical hinge formula Hooks coupling universal coupling with described connecting rod one end, and the other end of the connecting rod passes through institute
State slider throughbores；The motion recording component includes three-dimensional electronic gyroscope, first sensor, second sensor, third pressure
Sensor and display screen, the three-dimensional electronic gyroscope are arranged in the submerged body model, the first sensor, described second
Sensor and the third pressure sensor are separately positioned on the submerged body model top, bottom centre and side wall centre position,
The display screen respectively with the three-dimensional electronic gyroscope, the first sensor, the second sensor and the third pressure
Force snesor electrically connects.
To sum up, the experimental system of interior wave provided in an embodiment of the present invention and submerged body interaction, by set submerged body model,
Move simulated assembly, motion recording component and experimental tank so that by spherical hinge formula Hooks coupling universal coupling between submerged body and connecting rod,
And electronic gyroscope is set in submerged body, pressure sensor is set respectively among submerged body outer top, bottom surface and among side wall, and
Display screen is set, so as to carry out coupled motions with the flow field of interior estimates in submerged body, utilizes spherical hinge formula universal joint shaft
The connection of device so that submerged body can do the rotation in three directions relative to connecting rod, and be remembered in real time using three-dimensional electronic gyroscope
Record submerged body X, Y, Z-direction rotation angular speed, while record submerged body X, Y, Z-direction acceleration, utilize three pressure sensings
The interior estimates wave on tri- directions of X, Y, Z in device record interior estimates traveling process on submerged body model and connecting rod
Power, and then result will be recorded by wire transmission to display, real-time display Aerodynamic data, and be recorded in data file.
Description of the drawings
Fig. 1 is interior wave provided in an embodiment of the present invention and the structure diagram of the experimental system of submerged body interaction.
Fig. 2 is that the structure of the submerged body model of experimental system that interior wave provided in an embodiment of the present invention interacts with submerged body is shown
It is intended to；
Fig. 3 is the interior wave and the structure diagram of the experimental system of submerged body interaction that another embodiment of the present invention provides；
Fig. 4 is that the interior wave that another embodiment of the present invention provides and the plan structure of the experimental system of submerged body interaction are illustrated
Figure.
Reference sign：
100- submerged body models, 101- shells, the first clump weights of 102-, 201-X direction guiding rails, 202-Y direction guiding rails, 203- are spherical
Hinge formula Hooks coupling universal coupling, 204- link rod pieces, 205- sliding blocks, 206- connecting lines, the second clump weights of 207-, 301- three-dimensional electronics tops
Spiral shell instrument, 302- first sensors, 303- second sensors, the 4th sensors of 304-, 400- experimental tanks, 500- motors, 501- are led
Lead.
Specific embodiment
With reference to the attached drawing in the present invention, clear, complete description is carried out to the technical solution of the embodiment of the present invention, is shown
So, described embodiment is the part of the embodiment rather than whole embodiments of the present invention.Based on the implementation in the present invention
Example, those of ordinary skill in the art's all other embodiments obtained under the premise of creative work is not made all should
Belong to the scope of protection of the invention.
Below by a kind of interior wave that Fig. 1 to Fig. 4 the present invention will be described in detail embodiment provides and the reality of submerged body interaction
Check system.Fig. 1 is interior wave provided in an embodiment of the present invention and the structure diagram of the experimental system of submerged body interaction, as schemed institute
Show, which can include：
Submerged body model 100, movement simulated assembly and motion recording component, the submerged body model 100 include submerged body shell 101
And first clump weight 102, first clump weight 102 are placed in the submerged body shell 101；The movement simulated assembly includes X
Direction guiding rail 201, Y-direction guide rail 202, spherical hinge formula Hooks coupling universal coupling 203, connecting rod 204 and sliding block 205, the X direction guiding rails
201 levels are erected at 400 overhead of experimental tank, and what the Y-direction guide rail 202 was slided is arranged on the X direction guiding rails 201, and with
The Y-direction guide rail 202 is vertical, and what the sliding block 205 slided is arranged in the Y-direction guide rail 202, and the submerged body model 100 is logical
It crosses the spherical hinge formula Hooks coupling universal coupling 203 to connect with described 204 one end of connecting rod, the other end of the connecting rod 204
Across 205 through-hole of sliding block；The motion recording component includes three-dimensional electronic gyroscope 301, first sensor 302, second
Sensor 303, third pressure sensor 304 and display screen, the three-dimensional electronic gyroscope 301 are arranged on the submerged body model
In 100, the first sensor 302, the second sensor 303 and the third pressure sensor 304 are separately positioned on institute
State 100 top of submerged body model, among bottom and side wall centre position, the display screen respectively with the three-dimensional electronic gyroscope
301st, the first sensor 302, the second sensor 303 and the third pressure sensor 304 electrically connect.
Specifically, the experimental system of interior wave provided in an embodiment of the present invention and submerged body interaction, which can be with
Including submerged body model 100, movement simulated assembly, motion recording component and experimental tank 400.Experimental tank 400 can be cuboid
Structure, inside can set the medium of multilayer different densities, with the interior estimates in most real simulation ocean.For example, in reality
In experiment, can brine, upper strata setting fresh water be set in 400 bottom of experimental tank.
Submerged body model 100 can include the shell 101 of simulation.And in order to ensure submerged body in interior wave experimental trough as far as possible
Gravity and buoyancy under natural conditions keeps balance, and a clump weight, i.e. the first clump weight 102 can be set in shell 101.
Movement simulated assembly can include three direction guiding rails and connector.Three direction guiding rails can include tri- directions of X, Y, Z
Displacement guide rail.X and the guide rail of Y-direction horizontal can be erected on experimental tank 400.Specifically, the both ends of the guide rail of X-direction can
To be fixed on the side wall of experimental tank 400, what the both ends of the guide rail of Y-direction can be slided is arranged on the guide rail of X-direction, so as to
The guide rail of Y-direction can be caused to be slided on the guide rail of X-direction.For example, can groove be set in the rail crown of X-direction, and
Pulley is set in Y-direction guide rail bottom, so as to realize slip of the Y-direction guide rail on X direction guiding rails using pulley and groove cooperation.
Connector can include spherical hinge formula Hooks coupling universal coupling 203, connecting rod 204 and sliding block 205.In practice, sliding block 205 can be with
On the setting guide rail in the Y direction of slip, and can be in the Y direction guide rail on slidably reciprocate.It should be understood that it may be used similary
Groove and pulley setting, to realize slip of the sliding block 205 in Y-direction guide rail.Further, on sliding block 205 and Y-direction guide rail
Through-hole is set.So as to which the top of connecting rod 204 is sequentially passed through through-hole in Y-direction guide rail and sliding block 205.Also, submerged body mould
Type 100 can be connect by spherical hinge formula Hooks coupling universal coupling 203 with the bottom end of connecting rod 204.By above-mentioned connection, so as to
With the simulation that the rolling pitching head for realizing submerged body model shakes, and realize free movement of the submerged body in Z-direction.It should be understood that the connecting rod
The 204 Z-direction guide rail i.e. as the system.In addition, due to the setting of sliding block, i.e., sliding block can free movement on guide rail in the Y direction,
And Y-direction guide rail can the free movement on X direction guiding rails, it is achieved thereby that mould of the submerged body model in the displacement in tri- directions of X, Y, Z
Intend.
Further, in order to enable being connected in sliding block of can more stablizing of connecting rod, avoids connecting rod from shaking, into
And so that the motion state of submerged body model in z-direction is more stablized, and can fix pipe sleeve so that chain above the through-hole of sliding block
Extension bar part is in pipe sleeve.
The system is in order to realize data record of the submerged body model 100 in the mechanism of external force, the motion recording component
It can include three-dimensional electronic gyroscope, three pressure sensors and display screen.Three-dimensional electronic gyroscope is arranged on submerged body model 100
Interior, three pressure sensors are located in submerged body submerged body front center position, submerged body bottom surface middle position and submerged body side respectively
It entreats at position, display screen electrically connects respectively with three-dimensional electronic gyroscope and three pressure sensors.The angle of three-dimensional electronic gyroscope
Acceleration module can be used for measuring the swing angle on three directions of submerged body model, and linear velocity module can record three directions of submerged body
On misalignment；Three pressure sensors are used for three direction waves caused by recording interior estimates with submerged body vector to be changed.
Data display equipment can be with submerged body coupled motions data and pressure data that real-time display more than register instrument is recorded.
Preferably, in another embodiment for the experimental system that interior wave provided by the invention interacts with submerged body, in order to
Enough using under system simulation stationary state, submerged body is set on the active stressing conditions of interior estimates, the X direction guiding rails 201
It is useful for fixing multiple geometrical clamps of the Y-direction guide rail 202, the connecting rod 204 is equipped with to fix the connecting rod
Multiple geometrical clamps of part 204 and the sliding block 205.So as to the fixation for being stablized moving parts using above-mentioned multiple geometrical clamps
The a certain position in experimental tank.
Preferably, as shown in figure 3, interior wave provided by the invention and the another embodiment of the experimental system of submerged body interaction
In, in order to simulate coupled motions of the submerged body model 100 when meeting with interior estimates at the uniform velocity navigating by water, which further includes electricity
Machine 500.One motor can be set, and the shaft of the motor is passed through draught line and Y-direction guide rail phase in X direction guiding rails end
Even.So as in electric motor uniform rotation, draw Y-direction guide rail by draught line and submerged body model carries out in X direction
Uniform motion.
Preferably, in the another embodiment for the experimental system that interior wave provided by the invention interacts with submerged body, in order to flat
Weigh equipment gravity, and two clump weights can also be equipped between sliding block and connecting rod to balance connecting rod gravity.It can be
202 both ends of Y-direction guide rail set stent, and connecting line 206 is set on stent, so as at two 206 ends of connecting line
End hangs second clump weight 207 respectively.It optionally, can be in order to enable the gravity of equipment reaches best equilibrium state
The other end of connecting line is stretched into experimental tank, and be fixed on connecting rod.
In actual experiment, for example, containing the different medium of two layers of density in experimental tank, and in order to simulate in ocean
Solitary wave, general upper strata 1 are fresh water, and lower floor 2 is brine.Experimental provision is combined into the top for being integrally placed to experimental tank.First,
Y-direction guide rail is fixed on X direction guiding rails with fixed intermediate plate below guide rail in the Y direction, submerged body model is immersed in the water.Then root after
Counterweight is increased or decreased according to the floating of submerged body model or the characteristic of dive, until submerged body is suspended into designated depth in liquid.
When experiment starts, interior estimates are produced by gravitational collapse method in experimental tank.When interior estimates are propagated at submerged body
The variation of larger velocity field and density field can be caused, submerged body carries out coupled motions with the flow field of interior estimates.Due to submerged body Z
Direction is connected with vertical connecting rod, and corresponding through-hole in sliding block is passed through above connecting rod, i.e. submerged body depends on completely in Z-direction movement
In the active force that interior estimates apply submerged body.Under the action of interior estimates, submerged body may also be moved along X, Y-direction, when latent
Body along the two directions move when, submerged body and connecting rod can band movable slider is moved on X and Y-direction guide rail.It should be understood that in order to as possible
Influence of the sliding block for submarine's moving form is reduced, sliding block, that is, sliding rail is made of lightweight material, reduces error as possible.
It should also be understood that the submerged body under interior estimates effect can also generate the rotation of X, Y, Z-direction, since submerged body passes through spherical shape
Hinge formula Hooks coupling universal coupling is connected with vertical connecting rod, and the rotation in three directions can be done relative to connecting rod.The rotation of Z-direction can
Realize 360 degree of simulations, X, Y-direction rotation can be achieved to simulate close to the rotation of 180 degree.
The coupled motions form of interior estimates effect diving body is recorded by three-dimensional electronic gyroscope.Due to three-dimensional electronics top
Spiral shell instrument is installed at submerged body model inner bottom surface center, therefore, can record X, Y of submerged body, the angle speed of Z-direction rotation in real time
Degree, at the same record submerged body X, Y, Z-direction acceleration.Wireless module is installed additional in three-dimensional electronic gyroscope, it is real by wireless connection
When on data display equipment output data, and be recorded in data file.
In addition, in the stress experiment for carrying out interior estimates effect diving body, can be recorded by pressure sensor.Specifically
, before measuring, three pressure sensors are fixed at submerged body front end center, on the left of submerged body bottom surface middle position and submerged body
Face central position.Then tri- sides of X, Y, Z in interior estimates traveling process on submerged body model are recorded by pressure sensor
Upward interior estimates wave force.Pressure sensor is connect by conducting wire with display, real-time display Aerodynamic data, and is recorded in
In data file.
It should be understood that interior wave provided in an embodiment of the present invention and the experimental system of submerged body interaction put and can also be used for other water
The coupled motions simulation of lower aircraft, it is without limitation.
In conclusion interior wave provided in an embodiment of the present invention and the experimental system of submerged body interaction, by setting submerged body
Model, movement simulated assembly, motion recording component and experimental tank so that universal by spherical hinge formula between submerged body and connecting rod
Axis device, and electronic gyroscope is set in submerged body, pressure sensing is set respectively among submerged body outer top, bottom surface and among side wall
Device, and set display screen, so as to submerged body with interior estimates flow field carry out coupled motions, it is universal using spherical hinge formula
The connection of shaft coupling so that submerged body can do the rotation in three directions relative to connecting rod, and real using three-dimensional electronic gyroscope
X, Y of Shi Jilu submerged bodies, the angular speed of Z-direction rotation, at the same record submerged body X, Y, Z-direction acceleration, utilize three pressure
The interior estimates on tri- directions of X, Y, Z in sensor record interior estimates traveling process on submerged body model and connecting rod
Wave force, and then result will be recorded by wire transmission to display, real-time display Aerodynamic data, and be recorded in data file and work as
In.
Disclosed above is only several specific embodiments of the present invention, and still, the embodiment of the present invention is not limited to this, is appointed
What what those skilled in the art can think variation should all fall into protection scope of the present invention.
Claims (5)
1. a kind of interior wave and the experimental system of submerged body interaction, which is characterized in that including：Submerged body model (100), movement simulation
Component, motion recording component and experimental tank (400), the submerged body model (100) include submerged body shell (101) and the first counterweight
Block (102), first clump weight (102) are placed in the submerged body shell (101)；The movement simulated assembly includes guide X
Rail (201), Y-direction guide rail (202), spherical hinge formula Hooks coupling universal coupling (203), connecting rod (204) and sliding block (205), the X to
Guide rail (201) level is erected at experimental tank (400) overhead, and what the Y-direction guide rail (202) was slided is arranged on the X direction guiding rails
(201) on, and it is vertical with the Y-direction guide rail (202), what the sliding block (205) was slided is arranged in the Y-direction guide rail (202),
The submerged body model (100) is connect by the spherical hinge formula Hooks coupling universal coupling (203) with the connecting rod (204) one end,
The other end of the connecting rod (204) sequentially passes through the through-hole of the Y-direction guide rail (202) and the sliding block (205)；The fortune
Dynamic record component includes three-dimensional electronic gyroscope (301), first sensor (302), second sensor (303), third pressure and passes
Sensor (304) and display screen, the three-dimensional electronic gyroscope (301) are arranged in the submerged body model (100), and described first passes
Sensor (302), the second sensor (303) and the third pressure sensor (304) are separately positioned on the submerged body model
(100) top, among bottom and side wall centre position, the display screen respectively with the three-dimensional electronic gyroscope (301), described
First sensor (302), the second sensor (303) and the third pressure sensor (304) electrically connect.
2. interior wave according to claim 1 and the experimental system of submerged body interaction, which is characterized in that the X direction guiding rails
(201) multiple geometrical clamps for fixing the Y-direction guide rail (202) are equipped with, the connecting rod (204) is equipped with for solid
The fixed connecting rod (204) and multiple geometrical clamps of the sliding block (205).
3. interior wave according to claim 1 and the experimental system of submerged body interaction, which is characterized in that further include motor
(500), the motor is arranged on one end of the X direction guiding rails (201), the shaft of the motor and the Y-direction guide rail (202) it
Between be connected with draught line (501).
4. the experimental system to be interacted according to wave in claim 1-3 any one of them and submerged body, which is characterized in that described
Y-direction guide rail (202) both ends are equipped with connecting line (206), and connecting line (206) top is linked with the second clump weight (207).
5. the experimental system to be interacted according to wave in claim 1-3 any one of them and submerged body, which is characterized in that described
The medium of at least two different densities is provided in experimental tank (400).
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