CN109131796B - Full-soft underwater robot experiment platform driven by chemical energy release reaction - Google Patents
Full-soft underwater robot experiment platform driven by chemical energy release reaction Download PDFInfo
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- CN109131796B CN109131796B CN201811014267.0A CN201811014267A CN109131796B CN 109131796 B CN109131796 B CN 109131796B CN 201811014267 A CN201811014267 A CN 201811014267A CN 109131796 B CN109131796 B CN 109131796B
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- 230000005284 excitation Effects 0.000 claims abstract description 14
- 239000007779 soft material Substances 0.000 claims abstract description 11
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- 230000003287 optical effect Effects 0.000 claims abstract description 7
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- 239000012528 membrane Substances 0.000 claims description 17
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- 238000005507 spraying Methods 0.000 claims description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/52—Tools specially adapted for working underwater, not otherwise provided for
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Manipulator (AREA)
Abstract
The invention belongs to the technical field of underwater soft robots, and particularly relates to a full-soft underwater robot experiment platform driven by chemical energy release reaction, which comprises a chemical energy reaction driving device, a full-soft underwater robot, a water tank and an optical shockproof experiment platform, and is characterized in that: the gas source consists of a fuel gas bottle and a combustion-supporting gas bottle, the fuel gas bottle and the combustion-supporting gas bottle are both provided with pressure regulating valves and are both connected with a flow valve through gas pipes, the flow valve is provided with two paths of outlets, the two paths of outlets are respectively connected with a one-way valve, and the one-way valve and the pulse excitation device are both connected with a confluence flame arrester; compared with the prior art: the chemical energy release reaction has extremely high response speed, large output force and quick recovery, and the chemical energy release reaction is used as a driving method of the soft underwater robot and is combined with a specific soft material robot structure, so that the industrial problems of transient speed obstacle avoidance, transient speed change striking, quick starting and the like of underwater equipment can be solved.
Description
Technical Field
The invention belongs to the technical field of underwater soft robots, and particularly relates to a full-soft underwater robot experiment platform driven by chemical energy release reaction.
Background
The soft robot made of the full soft material has important significance in the soft robot industry. The full-soft robot has the advantages of light weight, high degree of freedom and strong anti-reconnaissance, but the full-soft robot has larger design and manufacturing difficulty due to strong nonlinearity of material deformation and lack of a driving method. The first all-software robot in the world is proposed by Harvard university in 2016, and provides an important research branch for the field of software robots, but all the existing all-software robots in the world have the problems of low response speed, small output force, small motion amplitude and the like.
Chemical discharging reaction is proposed as a soft robot driving method in 2014 by Harvard university in USA, and the chemical discharging reaction has the advantages of extremely high response speed, large output force and quick recovery, but the explosion process is too quick, so that great difficulty is generated when the driving method is coupled with a soft material. Meanwhile, the chemical energy release reaction is used as a driving method of the soft underwater robot, so that the industrial problems of transient speed obstacle avoidance, transient speed change striking, quick starting and the like of the soft underwater robot serving as underwater equipment can be overcome.
Jellyfishes become important application targets of various materials on the underwater bionic robot due to the motion characteristics of pulse injection and swimming coupling, transient speed and high flexibility. Among underwater soft robots which have been researched at present, there are rigid robots which use motors, internal combustion engines and the like as prime movers and soft robots which use soft materials as prime movers, and the bionic similarity is very low, and the expected bionic design target can not be achieved partially or completely: the rigid underwater robot has the problems of high noise, heavy weight, high energy consumption and the like, bionic work of the jellyfish robot can be realized to the maximum extent by applying chemical energy release reaction, the research of the chemical energy release reaction driving is the intersection of a plurality of subjects such as flexible material large deformation, hydromechanics, explosion mechanics and the like, a chemical energy release reaction driving laboratory is built, a chemical energy release reaction driving platform is built, and the three can be accurately matched to complete the experiment.
Compared with the prior art: the chemical energy release reaction has the advantages of extremely high response speed, large output force and quick recovery, and can overcome the industrial problems of transient speed obstacle avoidance, transient speed attack, quick start and the like of the soft robot serving as underwater equipment by using the chemical energy release reaction as a driving method of the soft underwater robot.
Disclosure of Invention
The utility model provides a chemistry can put reaction driven full software underwater robot experiment platform, includes chemical energy reaction drive arrangement, full software basin, optics experiment platform and full software underwater robot that takes precautions against earthquakes, its characterized in that: the chemical energy reaction driver includes: the system comprises a fuel gas bottle, a combustion-supporting gas bottle, a flow valve, a one-way valve, a confluence flame arrester, a fluid-pulse composite pipe and a pulse excitation device, wherein the fuel gas bottle and the combustion-supporting gas bottle are respectively provided with a pressure regulating valve and are respectively connected with the flow valve through an air pipe;
a head fluid channel and a tail fluid channel are respectively arranged at two ends of the water tank, and a high-speed camera and a thermal infrared imager are arranged above the water tank;
the optical shockproof experimental platform is provided with a retainer, and the high-speed camera and the thermal infrared imager are both connected with the retainer.
Further, the fluid-pulse composite pipe consists of an air pipe and a lead penetrating into the air pipe, and the lead of the pulse excitation device is combined with the air pipe of the one-way valve at the confluence flame arrester.
Further, the all-soft underwater robot comprises: the variable-rigidity head part, the variable-rigidity body part and the arc-shaped tail part are sequentially connected, an air pipe interface is arranged on the variable-rigidity head part, a flexible wing is arranged on the variable-rigidity body part, and a jet hole and a transmission hole are arranged on the arc-shaped tail part;
the full-soft underwater robot comprises a reaction bin, a flexible driving membrane and a water storage jet bin which are sequentially connected, wherein a flexible joint is arranged on the flexible driving membrane, and a flexible skeleton is arranged on the flexible joint and connected with a flexible wing.
Furthermore, the injection hole is a hole with two large end diameters and a small middle diameter.
Furthermore, all the structures of the full-soft underwater robot are made of soft materials.
Compared with the prior art, the invention has the following beneficial effects:
the invention innovatively combines chemical energy release reaction with soft materials, realizes the motion of the full-soft underwater robot for the first time, namely the processes of instantaneous linear acceleration starting, pulse driving cruising and the like, and the acceleration generated in the braking process is far higher than that of the underwater robot driven by other existing soft materials; the invention achieves the purpose of controlling the deformation part in the driving process by innovatively adopting a variable stiffness design method; the invention innovatively couples and designs the research methods of fluid mechanics, explosion mechanics and large deformation of flexible materials into a comprehensive experiment platform;
according to the invention, through the design of a soft material structure, a rigid material is not required for assistance in the movement process, the complex control process is simplified to the greatest extent, and the complex action process can be completed only by using pulse excitation; compared with a rigid underwater robot, the underwater robot has the advantages of light weight, low energy consumption, low noise and high bionic degree, and compared with a soft underwater robot adopting other driving methods, the underwater robot has the advantages of large driving force, fast response time and high average speed.
Drawings
FIG. 1 is an isometric view of an all-soft underwater robot and its experimental platform;
FIG. 2 is a front view of the all-soft underwater robot in a static state;
FIG. 3 is a sectional view of the full soft underwater robot in a static state;
FIG. 4 is an isometric view of an excited state of a fully soft underwater robot;
FIG. 5 is a cross-sectional view of the excitation state of the full soft underwater robot;
fig. 6 is a cross-sectional view of a fluid-pulse composite tube.
In the figure: 101-a fuel gas cylinder; 102-a combustion-supporting gas bottle; 2-pressure regulating valve; 3-flow valve; 4-a one-way valve; 5-a flame trap for confluence; 6-fluid-pulse composite tube; 7-a water tank; 8-full soft underwater robot; 801-variable stiffness head; an 802-tracheal interface; 803-flexible wings; 804-variable stiffness body; 805-an arcuate tail; 806-a reaction bin; 807-a flexible drive membrane; 808-a flexible joint; 809 water storage spraying bin; 810-flexible bone; 811-an injection hole; 812-a drive bore; 9-optical shockproof experimental platform; 10-a cage; 11-a high-speed camera; 12-infrared thermal imager; 13-a pulse excitation device; 1401-a head fluid channel; 1402-tail fluid channel.
Detailed Description
As shown in fig. 1, fig. 2 and fig. 3, a full soft underwater robot experiment platform driven by chemical energy release reaction comprises a chemical energy reaction driving device, a full soft water tank 7, an optical shockproof experiment platform 9 and a full soft underwater robot 8, and is characterized in that: the chemical energy reaction driver includes: the device comprises a fuel gas bottle 101, a combustion-supporting gas bottle 102, a flow valve 3, a one-way valve 4, a confluence flame arrester 5, a fluid-pulse composite pipe 6 and a pulse excitation device 13, wherein pressure regulating valves 2 are arranged on the fuel gas bottle 101 and the combustion-supporting gas bottle 102 and are connected with the flow valve 3 through gas pipes, the flow valve 3 is provided with two outlets, the two outlet pipelines are respectively provided with the one-way valve 4, the outlet pipelines of the one-way valve 4 and the pulse excitation device 13 are converged on the confluence flame arrester 5, and the confluence flame arrester 5 is connected with a full-soft underwater robot 8 placed in a water tank 7 filled with liquid through the fluid-pulse composite pipe 6;
a head fluid channel 1401 and a tail fluid channel 1402 are respectively arranged at two ends of the water tank 7, and a high-speed camera 11 and a thermal infrared imager 12 are arranged above the water tank 7;
the optical shockproof experiment platform 9 is provided with a retainer 10, and the high-speed camera 11 and the thermal infrared imager 12 are both connected with the retainer 10.
Further, the fluid-pulse composite tube 6 consists of an air tube and a lead penetrating into the air tube.
Further, the body comprises a variable stiffness head 801, a variable stiffness body 804 and an arc tail 805 which are sequentially connected, wherein the variable stiffness head 801 is provided with an air pipe interface 802, the variable stiffness body 804 is provided with a flexible wing 803, and the arc tail 805 is provided with an injection hole 811 and a transmission hole 812;
the interior of the body comprises a reaction chamber 806, a flexible driving membrane 807 and a water storage injection chamber 809 which are sequentially connected, wherein a flexible joint 808 is arranged on the flexible driving membrane 807, and a flexible skeleton 810 is arranged on the flexible joint 808 and is connected with the flexible wing 803.
Further, the injection hole 811 has a large diameter at both ends and a small diameter at the middle.
Further, each structure of the full-soft underwater robot 8 is composed of vulcanized silicone rubber with different hardness.
The use process of the experimental platform is explained by taking a figure 1 as an example, the experimental platform is driven by a chemical energy reaction driving device, the driving energy sources are respectively the combination of fuel in a fuel gas cylinder 101 and combustion improver such as methane and oxygen in a combustion-supporting gas cylinder 102, the combination can flow to a flow valve 3 through a gas hose according to preset pressure through the pressure regulation of a pressure regulating valve 2, the flow valve 3 can accurately control the flow velocity of gas flow to ensure that the gas flowing into a full-soft underwater robot 8 is a preset value, then a fuel pipe and the combustion improver are led out from one side of the flow velocity valve and are respectively connected with a one-way valve 4, the one-way valve 4 can ensure that the gas does not flow back, the error source phenomena such as backflow explosion, gas mixing and the like are prevented, the gas flows out from the one-way valve 4, is mixed at a confluence flame arrester 5 according to a preset proportion and flows out from a fluid-pulse composite pipe 6, and meanwhile, a lead of a pulse excitation device 13 also extends into the In reaction chamber 806. The water tank 7 and the retainer 10 are respectively arranged on the optical shockproof experiment platform 9, the high-speed camera 11 fixed on the retainer 10 can capture instantaneous optical images at a high frame rate, the infrared thermal imager 12 can capture instantaneous temperature thermal images at a high frame rate, the kinematic and thermodynamic processes of a chemical energy release reaction process can be researched by the cooperation of the infrared thermal imager and the thermal imager, and in addition, when the high-speed camera 11 cooperates with a laser emitter and tracer particles to work cooperatively, a particle image speed measurement system can be formed so as to research the hydrodynamic mechanism of the robot in swimming.
The purpose of changing the fluid condition of the robot motion experiment can be achieved by controlling the inflow and outflow conditions of the head fluid channel 1401 and the tail fluid channel 1402, for example, when the head fluid channel 1401 is in the inflow state, the tail fluid channel 1402 is in the outflow state, and the water tank 7 is preset to be in the water state, the counter-flow state can be simulated at the moment, and the counter-flow driving performance of the robot can be researched; conversely, the downstream driving performance of the robot can be researched.
Taking fig. 2 as an example, the fluid-pulse composite tube 6 is connected to the trachea interface 802, and the spark emitter at the end of the pulse excitation device 13 is disposed in the reaction chamber 806. Through the variable stiffness design, the variable stiffness head 801 is made of flexible material with a large elastic modulus, and the inner bottom of the variable stiffness head is coated with reinforcing material to guide the pressure generated by chemical energy release to be output to the flexible driving membrane 807 in a concentrated manner, and the variable stiffness body 804 and the arc-shaped tail 805 are also reinforced in the same manner. The shape of the arc tail is similar to the large deformation of the flexible drive membrane 807 due to the chemical discharge reaction to maximize the volume of water displaced without creating additional resistance to the flexible drive membrane.
Energy charging, transmission and driving are explained by taking the examples shown in fig. 2, fig. 3, fig. 4 and fig. 5 as examples. The premixed raw material gas enters the reaction bin 806 through the fluid-pulse composite pipe 6, a pulse signal is generated by the pulse excitation device 13, the signal is transmitted to an electric spark emitter at the tail end of the signal through a lead, the electric spark can ignite the premixed raw material gas, the premixed raw material gas can release a large amount of energy within a very short time after ignition, one part of energy is dissipated through heat, the other part of energy is converted into kinetic energy of reactants, and the reactants impact the flexible driving membrane 807 to cause outward deformation of the flexible driving membrane 807 so as to dissipate kinetic energy of the reactants in the form of mechanical energy. The invention utilizes the mechanical energy to drive the full-soft underwater robot 8 to move.
When the flexible driving membrane 807 moves outwards, the flexible joints 808 combined with the flexible driving membrane are deformed outwards together with the flexible driving membrane, all the flexible bones 810 are intersected at the flexible joints 808 and are respectively connected with the corresponding flexible wings 803, and when the flexible joints 808 are deformed, the flexible bones 810 are pulled by the flexible joints 808, so that the flexible wings 803 flap to generate thrust. Meanwhile, before the flexible driving membrane 807 deforms, the water storage injection bin 809 is in a semi-water-filled state (the return speed of the membrane is greater than the water inlet speed), the deformed stored water is injected from the inside of the water storage injection bin 809 through the injection hole 811 to generate thrust outside the body, and the shape of the injection hole 811 can enable the injected air to be injected outside the body in the form of an air ring to generate thrust.
By taking the structure of the fluid-pulse composite tube 6 as an example and explaining the structure of the fluid-pulse composite tube 6, the conducting wire of the pulse excitation device 13 penetrates into the fluid-pulse composite tube 6, the mixed air flow flows from the gap, and the current flows from the conducting wire.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides a chemistry is put can reaction driven full software underwater robot experiment platform, includes chemical energy reaction drive arrangement, full software underwater robot (8), basin (7) and optics experiment platform (9) that takes precautions against earthquakes, its characterized in that: the chemical energy reaction driver includes: the device comprises a fuel gas cylinder (101), a combustion-supporting gas cylinder (102), a flow valve (3), a one-way valve (4), a confluence flame arrester (5), a fluid-pulse composite pipe (6) and a pulse excitation device (13), wherein pressure regulating valves (2) are arranged on the fuel gas cylinder (101) and the combustion-supporting gas cylinder (102) and are connected with the flow valve (3) through gas pipes, the flow valve (3) is provided with two outlets, the one-way valve (4) is arranged on the two outlet pipelines, the outlet pipelines of the one-way valve (4) and the pulse excitation device (13) are converged on the confluence flame arrester (5), and the confluence flame arrester (5) is connected with a full-software underwater robot (8) placed in a liquid-filled water tank (7) through the fluid-pulse composite pipe (6);
a head fluid channel (1401) and a tail fluid channel (1402) are respectively arranged at two ends of the water tank (7), and a high-speed camera (11) and a thermal infrared imager (12) are arranged above the water tank (7);
the optical shockproof experiment platform (9) is provided with a retainer (10), and the high-speed camera (11) and the thermal infrared imager (12) are connected with the retainer (10).
2. The chemical discharge reaction driven full-soft underwater robot experimental platform as claimed in claim 1, characterized in that the fluid-pulse composite pipe (6) is composed of a gas pipe and a lead wire penetrating into the gas pipe.
3. The chemical discharge reaction driven full-soft underwater robot experimental platform as claimed in claim 1 or 2, wherein: the full-soft underwater robot (8) comprises: the variable stiffness head (801), the variable stiffness body (804) and the arc-shaped tail (805) are sequentially connected, an air pipe interface (802) is arranged on the variable stiffness head (801), a flexible wing (803) is arranged on the variable stiffness body (804), and an injection hole (811) and a transmission hole (812) are arranged on the arc-shaped tail (805);
the full-soft underwater robot (8) comprises a reaction cabin (806), a flexible driving membrane (807) and a water storage spraying cabin (809) which are sequentially connected, wherein a flexible joint (808) is arranged on the flexible driving membrane (807), and a flexible skeleton (810) is arranged on the flexible joint (808) and is connected with a flexible wing (803).
4. The chemical discharge reaction driven full-soft underwater robot experimental platform of claim 3, wherein; the injection hole (811) is a hole with two large end diameters and a small middle diameter.
5. The chemical discharge reaction driven full-soft underwater robot experimental platform as claimed in claim 1 or 2, wherein: the full-soft underwater robot (8) is made of soft materials.
6. The chemical discharge reaction driven full-soft underwater robot experimental platform of claim 3, wherein: the full-soft underwater robot (8) is made of soft materials.
7. The chemical discharge reaction driven full-soft underwater robot experimental platform of claim 4, wherein: the full-soft underwater robot (8) is made of soft materials.
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| WO2015138649A1 (en) * | 2014-03-11 | 2015-09-17 | Soft Robotics, Inc. | Soft conformal laparoscopic instrument |
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| CN108357654A (en) * | 2018-01-12 | 2018-08-03 | 浙江大学 | A kind of underwater soft robot of chemistry exergonic reaction driving |
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| CN103150946A (en) * | 2013-02-05 | 2013-06-12 | 厦门大学 | Two-dimensional flow display device |
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