CN110126859A - A kind of Grazing condition polymer smart skins for vehicle head structure monitoring - Google Patents
A kind of Grazing condition polymer smart skins for vehicle head structure monitoring Download PDFInfo
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- CN110126859A CN110126859A CN201910255088.4A CN201910255088A CN110126859A CN 110126859 A CN110126859 A CN 110126859A CN 201910255088 A CN201910255088 A CN 201910255088A CN 110126859 A CN110126859 A CN 110126859A
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- 239000002322 conducting polymer Substances 0.000 claims abstract description 27
- 229920001940 conductive polymer Polymers 0.000 claims abstract description 27
- 230000036541 health Effects 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 15
- 238000013461 design Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000000284 extract Substances 0.000 claims description 5
- 229920000620 organic polymer Polymers 0.000 claims description 5
- 238000003786 synthesis reaction Methods 0.000 claims description 5
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- 238000011031 large-scale manufacturing process Methods 0.000 abstract 1
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- 239000003990 capacitor Substances 0.000 description 8
- 239000006229 carbon black Substances 0.000 description 5
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- 239000002105 nanoparticle Substances 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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- 230000003862 health status Effects 0.000 description 2
- 239000002346 layers by function Substances 0.000 description 2
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- 239000002114 nanocomposite Substances 0.000 description 2
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 description 1
- NBGBEUITCPENLJ-UHFFFAOYSA-N Bunazosin hydrochloride Chemical compound Cl.C1CN(C(=O)CCC)CCCN1C1=NC(N)=C(C=C(OC)C(OC)=C2)C2=N1 NBGBEUITCPENLJ-UHFFFAOYSA-N 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
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- JZZIHCLFHIXETF-UHFFFAOYSA-N dimethylsilicon Chemical compound C[Si]C JZZIHCLFHIXETF-UHFFFAOYSA-N 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a kind of Grazing condition polymer smart skins, functional module is integrated on same flexible base board, including the integrated piezoresistive strain array based on conducting polymer 1 and using the capacitive array sensor of conducting polymer 2, it is distributed for monitoring strain and the pressure of headstock.Furthermore; a kind of Grazing condition polymer smart skins device preparation method is provided; focus on preparation and the integrated strain sensing module based on conducting polymer 1 and the capacitive pressure module based on conducting polymer 2 on stretchable substrate; sensor array is prepared using molten liquifying method; support whole soln chemical industry high-volume large-scale production; the designed Grazing condition smart skins with preparation are bonded on the labyrinth on headstock surface; for recording the strain of headstock and pressure information in train operation; it realizes vehicle head structure health monitoring, guarantees the steady high-speed cruising of train.
Description
Technical field
The present invention relates to flexible electronics and smart skins field, in particular to Grazing condition polymer smart skins device and system
Preparation Method.
Background technique
Fast train head's structural health conditions and train safety traffic are closely related, how effectively to monitor the structure of headstock
Health and fitness information has been a hot spot of research.Smart skins are bonded in the body surface of complex topography extensively, will be in high-speed train
There is very big prospect in header structure health monitoring.High-speed rail technology rapid development in China's is that the safety of high-speed rail train operation brings pole
Intelligent Skin Technology is applied to the safety that train operation will be improved in bullet train by big pressure.
Intelligent Skin Technology is applied in fields such as aircraft, bridges, but is mainly based upon traditional answer
Become sensor, has received limitation in the coefficient of strain and stretcher strain ability etc..Design the large area based on piezoelectric transducer network
Soft impulse monitoring network system, be used for Flight Vehicle Structure health monitoring, have flexibility, lightweight, low-power consumption, can self-powered
The characteristics of, improve safety and the maintenance efficiency of Flight Vehicle Structure.(aircraft electromechanical integration large area flexible Impact monitoring intelligence
Energy Skin System, CN201711287418.5).Therefore Grazing condition polymer smart skins are by large deformation, complex-curved structure
Health monitoring will be well worth doing in smart skins and monitoring structural health conditions field, especially by nano-carbon material (such as carbon black, carbon
Nanotube and graphene) it is prepared together with silicone elastomer body, by machinery, either physically or chemically by carbon nanotube polymer
Manufactured pressure drag nanocomposite in matrix, these nanocomposites not only have the durable of significant polymer substrate
Property and draftability, but also it is conductive.The designed stretchable conducting polymer with preparation for strain sensing unit and
Structure is mounted in measurement structure, and it is to be prepared into be total to headstock labyrinth that health status is perceived by resistance-emergent property
The Grazing condition polymer smart skins of shape provide material and technical support.It is safe and efficient at high load conditions for bullet train
It runs to rate and provides technical guarantee.
The present invention is the material of main part for making smart skins with Grazing condition polymer, supports solution preparation and big batch
Metaplasia produces, and has the characteristics that material is light, at low cost.The integrated strain of Grazing condition smart skins and pressure sensing array, it is multiple with headstock
Miscellaneous structure keeps bringing into conformal contact, realizes the Seamless integration- with complicated vehicle head structure, is that real-time monitoring vehicle head structure health and fitness information mentions
Feasible solution is supplied.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the first object of the present invention is to provide a kind of towards high speed
The Grazing condition polymer smart skins device of train, including functional layer and stretchable elastic substrates, functional layer is including the use of conduction
The piezoresistive effect of polymer 1 is come the stretchable strain array that designs；Electrode is prepared using conducting polymer 2, polymer is used as
Dielectric layer material, the three layer capacitance sensor array of flexibility of design, for monitoring the pressure distribution of headstock.Perceptional function layer collects
At on same flexible base board, giving the Grazing condition smart skins design method of integrated strain and pressure perceptional function.Institute
The Grazing condition smart skins of design are directly bonded to high-speed train head surface, for monitoring the external world in train travelling process
The health status information of environment and headstock self structure realizes the real-time monitoring of the physical quantitys such as headstock strain, stress and pressure.
Aiming at the above defects or improvement requirements of the prior art, it is poly- to be to provide a kind of Grazing condition for the second object of the present invention
Close object smart skins device preparation method, it is preferred that emphasis is preparation and the integrated strain based on conducting polymer 1 on stretchable substrate
Sensing module and capacitive pressure module based on conducting polymer 2, first synthesis conducting polymer 1 and 2, complete strain and stress
Prepared by the processing of monitoring unit, complete the design of sensor array and integrate, then pass through conducting wire for the battle array of strain and pressure functional
Biographies sense extracts, and sensor array is transferred to the upper of stretchable elastic thin polymer film, completes Grazing condition polymer intelligence
The preparation of covering device.
A kind of Grazing condition polymer smart skins towards Rapid train headstock structure health monitoring, including conducting polymer
1 strain sensing module and the capacitive pressure module based on conducting polymer 2, which is characterized in that the composition material of sensing unit
It is organic polymer, there is stretcher strain ability.
Further, the Grazing condition smart skins function module design, which is characterized in that array Functional Design, by
Stretchable elastic base plate support, is bonded in the complex-curved surface of headstock, keeps bringing into conformal contact therewith.
Further, the bullet train headstock Grazing condition smart skins preparation method, which is characterized in that smart skins are
Whole soln preparation process, supporting industry produce manufacture in enormous quantities.
A kind of smart skins preparation method towards Rapid train headstock structure health monitoring, comprising the following steps:
(1) the headstock covering of integrated design strain and pressure sensing array guarantees headstock intelligence using the flexible characteristic of polymer
The stretcher strain ability of covering；
(2) corresponding material and material proportion synthesis configuration conducting polymer 1 and 2, dielectric layer material, stretchable elastic base are selected
Plate etc.；
(3) strain transducer based on conducting polymer 1 and the pressure sensor (capacitance sensing based on conducting polymer 2 are prepared
Device)；
(4) according to designed sensor array, assembly array structure type is distinguished into strain and pressure sensor, improve intelligence
The perception integrated level of covering；
(5) signal of array sensor is drawn using flexible wire, while smart skins is recorded into headstock surface texture
Stress extracts respectively with pressure signal distribution situation；
(6) strain and pressure sensing array are transferred on stretchable elastic base plate, utilize the Van der Waals between organic polymer
Power realizes the bonding between sensor array and stretchable substrate, completes the preparation of headstock surface smart skins；
(7) the all-polymer flexible intelligent covering prepared is mounted on the labyrinth on headstock surface, is used for bullet train
The structural health real-time monitoring of operational process.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, due to the present invention, towards
The Grazing condition polymer smart skins of Rapid train headstock structure health monitoring integrate strain and pressure monitoring module, array simultaneously
Changing sensing device realizes the monitoring structural health conditions on headstock surface.
The present invention, the synthesis configuration of conducting polymer and flexible base board is adopted in the preparation method of whole soln smart skins
With conventional methods such as solwution method, thin film coated, printings, support to produce manufacture in enormous quantities；Functional module is finally transferred to stretchable
On substrate, on the conformal labyrinth for being mounted on headstock surface, the real-time monitoring of Rapid train headstock structure health and fitness information is realized.
The structural health information of Grazing condition polymer smart skins real-time monitoring headstock of the present invention, be equally applied to automobile,
The structures such as steamer, aircraft extend the application range of flexible intelligent covering.
In conclusion the integrated strain of Grazing condition polymer smart skins of the present invention and pressure sensing array, and it is integrated
On same stretchable elastic base plate, whole soln chemical industry high-volume large-scale preparation method is supported, it is designed complete with preparation
Flexible intelligent covering is bonded on the labyrinth on headstock surface, is believed for recording the strain of headstock and pressure in train operation
Breath, realizes vehicle head structure health monitoring, and the safe condition of prediction vehicle operation guarantees the steady high-speed cruising of train.
Detailed description of the invention
Fig. 1 is designed based on the bullet train headstock smart skins of Grazing condition polymer.
The working principle of Fig. 2 strain sensing array and capacitive pressure sensor array.Figure a is strain sensing array；Scheming b is
Pressure sensing array.
The working principle of Fig. 3 strain sensing unit and capacitive pressure sensing unit.Scheming a is stretchable strain transducer
Operation principle schematic diagram；Scheme the operation principle schematic diagram that b is flexible capacitive pressure transducer.
The preparation process of Fig. 4 Grazing condition polymer smart skins.
Fig. 5 smart skins are used for the state of health data recorded when monitoring structural health conditions.A is schemed for strain sensing unit note
Record the relationship between increased resistance value and additional strain；Figure b is that capacitance variations value and outer is recorded in capacitive pressure sensing unit
Relationship between plus-pressure.
Symbolic significance is described as follows in figure:
11- bullet train headstock；12- headstock surface labyrinth；The stretchable elastic base plate of 13-；14- is based on conducting polymer 1
Strain transducer unit；15- capacitive pressure sensing unit；16- flexible wire；
21- has the conducting polymer 1 of piezoresistive characteristic；22- flexible wire；The dielectric layer of 23- capacitance sensor, 24- parallel-plate
The upper and lower level electrode of capacitor.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
Referring to Fig. 1, Grazing condition smart skins 13 are fitted in the complex-curved structure 12 on 11 surface of bullet train headstock, are used
In the structural health information of monitoring bullet train headstock.Designed Grazing condition smart skins include to be selected based on conducting polymer 1(
With the copolymer of carbon black nanoparticle and dimethyl silicone polymer) strain transducer 14 and based on conducting polymer 2(conduction from
Sub- glue) electrode parallel plate capacitor pressure sensor 15, all have stretcher strain ability.Carbon black nanoparticle and poly dimethyl silicon
Corresponding variation occurs for the resistance that the conducting polymer of oxygen alkane corresponds to copolymer in draw-texture process, arranges for recording high speed
Vehicle operational process wind speed is to headstock surface texture strain information；The parallel plate capacitor pressure sensor 15 of conductive ion gel electrode by
To under the action of the physical quantitys such as wind pressure, corresponding variation, the capacitor of capacitance sensor output occur for the distance between plane capacitance
Value also changes therewith, for recording bullet train operational process wind speed to headstock surface texture pressure information.Pass through flexible wire
16 extract the signal of designed array strain and pressure gage, and multi-channel signal acquiring equipment can record not simultaneous interpretation
The corresponding signal of sensor cell, stress and pressure for headstock surface visualize, and realize the structural health of headstock surface texture
Information monitoring.
In the smart skins of designed integrated strain and pressure sensing array, sensor array working principle is as shown in Figure 2.
Figure a is strain sensing array, is made of 4 row, 4 column strain sensing array, indicates different by the corresponding location information of row and column
The information that strain unit perception 21 is arrived；Figure b is capacitive pressure sensor array, is made of 4 row, 4 column capacitance pressure sensing array, is put down
The upper and lower level electrode of andante capacitor is conductive ion xanthan polymer 24, and the dielectric layer of capacitor is 23, passes through the corresponding position of row and column
Confidence breath indicates the information that different capacitive pressure units perceive.In line direction and perpendicular side upwardly through conducting wire 22 by sensor array
Corresponding signal extracts.
Strain and pressure gage working principle in Grazing condition smart skins is as shown in Figure 3.Scheming a is strain transducer
Working principle, in stretching under compression situation, corresponding variation occurs for resistance value, monitors corresponding surface for reaction and answers
Become situation of change；The working principle that b is capacitive pressure transducer is schemed, by normal pressure or side pressure (shearing) effect
Under, corresponding variation occurs for the capacitance of parallel plate capacitor sensor.
As indicated at 4, key step is as follows for the preparation process of designed Grazing condition smart skins:
(1) the headstock covering of integrated design strain and pressure sensing array, by carbon black nanoparticle and dimethyl silicone polymer
Copolymer is prepared into strip structure, as the stretchable strain transducer based on conducting polymer, applies in headstock surface texture
Strain monitoring；Conductive ion glue (electrode material) and sealant (dielectric layer) is designed to parallel plate capacitor pressure sensor knot
Structure, the pressure monitoring for headstock surface；
(2) mass ratio of carbon black nanoparticle and dimethyl silicone polymer is 5:95 in conducting polymer 1；Conductive ion glue 2 is used
Make capacitance electrode material, sealant is used as dielectric layer material；Polydimethylsiloxanefilm film is used as stretchable elastic base plate；
(3) conducting polymer 1 is poured and is filled in the groove of specified size, be prepared into strip structure, complete strain transducer unit
Preparation；Conductive ion glue is prepared into membrane structure, is cut into specified size, sealant dielectric layer membrane materials are cut into
Specified size, conductive ion glue are adhered respectively in the upper and lower level of sealant film material, utilize the phase interaction between polymer
It firmly realizes the laminated of capacitive pressure transducer, completes the preparation of capacitive pressure transducer unit；
(4) multiple strain sensing units are orderly connected using flexible wire, integrates to form strain sensing battle array
Column；Multiple pressure sensors are connected also with flexible wire, capacitive array sensor is formed, improves the sense of smart skins
Know integrated level；
(5) flexible wire and the horizontal pin of array sensor and the classification of vertical pin are connected, that is, will be intelligent
The stress of covering record headstock surface texture is extracted with pressure signal distribution situation, realizes sensor array in monitoring structural health conditions
In application；
(6) it will be strained using releasable adhesive tape and pressure sensing array be transferred on the designated position of stretchable elastic base plate, benefit
The bonding between sensor array and stretchable substrate is realized with the Van der Waals force between organic polymer, completes headstock surface intelligence
The preparation of covering；
(7) the Grazing condition polymer smart skins prepared are mounted on the labyrinth on headstock surface, are used for bullet train
The structural health real-time monitoring of operational process.
Monitoring structural health conditions based on Grazing condition smart skins illustrate:
A kind of Grazing condition polymer smart skins for monitoring structural health conditions result as shown in figure 5, figure a is based on conducting polymer
The data of the strain transducer unit testing of object 1 indicate the relationship between additional strain and sensor resistance changing value, pass through note
Obtained increased resistance value is recorded, the strained situation of Grazing condition smart skins can directly be calculated；Scheming b is that flexible capacitive pressure passes
The data of sensor cell record, indicate the relationship between impressed pressure and capacitance variations value, by recording obtained capacitance variations
Value, can directly be calculated the pressure condition of Grazing condition smart skins.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (7)
1. a kind of Grazing condition polymer smart skins towards Rapid train headstock structure health monitoring, including strain sensing and electricity
Pressure pressure sensing module.
2. Grazing condition polymer smart skins according to claim 1, which is characterized in that the function for constituting smart skins
It can be organic polymer with structural material, and be integrated on the stretchable elastic base plate of same.
3. Grazing condition polymer smart skins preparation method according to claim 2, which is characterized in that the preparation method
Using solution preparation method, the manufacture of supporting industry high-volume continuous production.
4. a kind of Grazing condition polymer smart skins preparation method, comprising the following steps:
(1) the headstock covering of integrated design strain and pressure sensing array guarantees headstock intelligence using the flexible characteristic of polymer
The stretcher strain ability of covering；
(2) corresponding material and material proportion synthesis configuration conducting polymer 1 and 2, dielectric layer material, stretchable elasticity are selected
Substrate etc.；
(3) strain transducer based on conducting polymer 1 and the pressure sensor (capacitance sensing based on conducting polymer 2 are prepared
Device)；
(4) according to designed sensor array, assembly array structure type is distinguished into strain and pressure sensor, improve intelligence
The perception integrated level of energy covering；
(5) signal of array sensor is drawn using flexible wire, while smart skins is recorded into headstock surface texture
Stress extracts respectively with pressure signal distribution situation；
(6) strain and pressure sensing array are transferred on stretchable elastic base plate, utilize the Van der Waals between organic polymer
Power realizes the bonding between sensor array and stretchable substrate, completes the preparation of headstock surface smart skins；
(7) the all-polymer flexible intelligent covering prepared is mounted on the labyrinth on headstock surface, is used for bullet train
The structural health real-time monitoring of operational process.
5. Grazing condition polymer smart skins preparation method according to claim 4, which is characterized in that the preparation method
Feature is divided into materials synthesis and sensing unit makes.
6. Grazing condition polymer smart skins preparation method according to claim 5, which is characterized in that the preparation method
Character arrayization sensing pin is connected with flexible wire.
7. according to Grazing condition polymer smart skins preparation method described in claim 4 ~ 6 any one.
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| CN201910255088.4A CN110126859A (en) | 2019-04-01 | 2019-04-01 | A kind of Grazing condition polymer smart skins for vehicle head structure monitoring |
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Cited By (6)
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| CN110587662A (en) * | 2019-10-07 | 2019-12-20 | 华东交通大学 | Multifunctional polymer robot skin and preparation method thereof |
| CN110615007A (en) * | 2019-10-17 | 2019-12-27 | 华东交通大学 | Intelligent skin for unmanned self-adaptive control of rail transit vehicle |
| CN111169654A (en) * | 2019-12-25 | 2020-05-19 | 中国航空工业集团公司西安飞机设计研究所 | Deformation monitoring device of aircraft wing |
| CN111664985A (en) * | 2020-06-15 | 2020-09-15 | 华东交通大学 | Curved surface sensing device for train bogie air pressure detection |
| CN113148109A (en) * | 2021-03-26 | 2021-07-23 | 中国飞机强度研究所 | Intelligent lattice morphing wing of electric aircraft and design method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587662A (en) * | 2019-10-07 | 2019-12-20 | 华东交通大学 | Multifunctional polymer robot skin and preparation method thereof |
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| CN110615007A (en) * | 2019-10-17 | 2019-12-27 | 华东交通大学 | Intelligent skin for unmanned self-adaptive control of rail transit vehicle |
| CN111169654A (en) * | 2019-12-25 | 2020-05-19 | 中国航空工业集团公司西安飞机设计研究所 | Deformation monitoring device of aircraft wing |
| CN111664985A (en) * | 2020-06-15 | 2020-09-15 | 华东交通大学 | Curved surface sensing device for train bogie air pressure detection |
| CN113148109A (en) * | 2021-03-26 | 2021-07-23 | 中国飞机强度研究所 | Intelligent lattice morphing wing of electric aircraft and design method |
| CN116734929A (en) * | 2023-08-16 | 2023-09-12 | 中北大学 | Distributed multi-parameter test system suitable for aircraft |
| CN116734929B (en) * | 2023-08-16 | 2023-11-07 | 中北大学 | Distributed multi-parameter test system suitable for aircraft |
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