CN101598676B - Process for mass-producing distributed high-accuracy self-monitoring fiber reinforced polymer (FRP) bars/cables on the basis of fiber-optic sensing - Google Patents
Process for mass-producing distributed high-accuracy self-monitoring fiber reinforced polymer (FRP) bars/cables on the basis of fiber-optic sensing Download PDFInfo
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Abstract
The invention provides a process for mass-producing distributed high-accuracy self-monitoring FRP bars/cables on the basis of fiber-optic sensing technology. The process mainly comprises the following procedures: (1), preparing and packaging an optical fiber sensor, that is, improving the sensing accuracy of the existing common single-mode communication optical fiber by the non-slip and long-gauge processing technology and reinforcing and strengthening the single-mode communication optical fiber by braiding/winding fiber around the single-mode communication optical fiber in a non-adhesive manner, thereby adapting to the mechanized production of the FRP bars/cables; and (2), the extrusion-forming process of the self-monitoring FRP bars/cables with controllable solidifying length (namely the length of a single FRP bar/cable), that is, a mass-production flow for introducing the packaging product of the high-accuracy optical fiber sensor into the modified FRP bars/cables. The process can ensure that the resin is fully solidified within the use length range of the bar/cable, while the resin at the end zone is not solidified, so that the fiber-optic interface can be led out. The process mainly comprises the key processes for controlling the optical fiber compounding state, the appearance and the length of the bars/cables, the coupling of temperature and pulling speed and the like.
Description
(1) technical field
The present invention is a kind of scale production process of the distributed high-precision self-monitoring FRP bar muscle/rope based on Fibre Optical Sensor, belongs to the technical field of intelligence structure material and sensor monitoring.
(2) background technology
Continuous fiber strengthens polymer composites, and (Fiber Reinforced Polymer FRP) has advantages such as intensity height, density are little, good endurance, therefore, thinks to replace the good selection of steel in civil engineering structure.Be used at present actual engineering the main carbon fiber of fiber, glass fibre, spin wheel fiber and basalt fibre, fiber and polymkeric substance can be combined into muscle/rope material, sheet material and other various forms of section bars.Wherein, the FRP muscle has been subjected to researcher's extensive concern.Domestic, some R﹠D institutions such as Southeast China University, University of Fuzhou have launched the research of comparison system to the basic mechanical performance of FRP muscle/rope and the performance of enhancing structure thereof.Yet the FRP material is a kind of anisotropic material, and complete linear elasticity, defectives such as shear resistance is poor so FRP muscle/rope exists, brittle rupture.To the accurate monitoring in FRP muscle/Suo Shixian cycle life-cycle, can actively promote the widespread use of this hi-tech material in actual engineering.
The distributing optical fiber sensing technology is because of advantages such as the distributivity of its test, network, stability, in recent years by constantly application structure health monitoring.The difference of its test philosophy of distributing optical fiber sensing technical basis mainly is divided into intensity type (as little curved optical fiber), interference capability (as the SOFO system) and scatter-type (as the test macro based on Brillouin scattering) etc. in the world at present.Wherein based on the BOTDR (Brillouin Optical Time Domain Reflectry) of Brillouin scattering mechanism, BOTDA sensing technologies such as (Brillouin Optical Time Domain Analysis) because the huge advantage of aspect such as its measuring accuracy height, information in temperature, strain is comprehensive and measuring distance is long has been subjected to various countries researchers' favor.Since frequency shift property that people such as Horiguchi in 1989 propose to have proposed respectively first to utilize Brillouin light is as distributed strain and temperature sensing, development through recent two decades, the spatial resolution of test reaches 10cm, strain testing precision ± 6 μ ε, 1 ℃ of temperature test precision.
Advance FRP muscle/rope with distributed sensing fiber is compound, form a kind of intelligence structure material, i.e. self-monitoring FRP bar muscle/rope.Fragile optical fiber is well protected when reality is used, can be improved the security performance of linear elasticity material when engineering is used of this high strength, high-durability to effectively monitoring in real time of FRP muscle/Suo Jinhang simultaneously.The Japan Ibaraki Wu Zhi of university waits deeply and proposes to utilize fiber packaged fiber sensor, permanance and survival rate when the raising sensor is structurally laid; Domestic, Harbin Institute of Technology advances in Europe duckweed etc. and first fiber grating is imbedded in the FRP muscle, has improved the environment of fiber grating at the xoncrete structure internal monitoring.
But main some problems like this that exist in actual production, application: (1) optical fiber is relatively more fragile, and survival rate is very low in the pultrusion molding process of FRP muscle/rope, has a strong impact on serialization large-scale production; (2) Fibre Optical Sensor interface (i.e. one section free optical fiber that is used to connect other Fibre Optical Sensors) is drawn the comparison difficulty in the common combination process of FRP material (being that thermosetting is compound); (3) pass and to exist factors such as slippage and the fibre strain in spatial decomposition can (being minimum measuring distance) be inhomogeneous to reduce precision when distributed sensing is tested between optical element (being fibre core and covering) and the peripheral resinous coat.
At the problems referred to above, the Zhou Zhi of Harbin Institute of Technology etc. bury into the probe of thermosetting FRP muscle underground to bare fibre (common commercial optical fiber) and draw and inquire into and study, promptly optical fiber is brushed oil every glue, the FRP muscle of peeling off curing then makes the Fibre Optical Sensor interface draw; The Japan Ibaraki Wu Zhi of university is dark, Zhang Hao etc. proposes optical fiber by theory and experimental study does not have the measuring accuracy that slippageization and long gauge lengthization (being the laying of optical fiber fixed point) can improve distributed sensing fiber.
Yet always relate to the very artificial treatment of trouble in the present various research, this not only reduces industrialized level, improves production cost, and can influence the yield rate of product and the stability of performance.And using optical fiber generally all is the common commercial communication optical fiber, can reduce the actual sensing testing precision of product.
But the present invention is based upon on the basis of each link complete mechanicalization automatic control, and real meaning realizes the large-scale production based on the high-precision self-monitoring FRP bar muscle/rope of distributing optical fiber sensing technology.
(3) summary of the invention
Technical matters: technical matters to be solved by this invention is at above-mentioned the deficiencies in the prior art, and provide under a kind of prerequisite of changing the production equipment of existing FRP muscle/rope and optical fiber and technology in amount seldom, be suitable for manufacturing process based on the large-scale production of the high-precision self-monitoring FRP bar muscle/rope of distributing optical fiber sensing technology.
Technical scheme: the technical solution adopted for the present invention to solve the technical problems is: a kind of scale production process of the distributed high-precision self-monitoring FRP bar muscle/rope based on Fibre Optical Sensor may further comprise the steps:
The first step, not having the packaged article of bonding braiding/fiber-reinforced wrapped formation high-precision optical fiber sensor around the high-precision optical fiber sensor, also is the compound enhancing optical fiber of dry type of optical fiber-fiber;
Second step, preparation high-precision self-monitoring FRP bar muscle/rope: the packaged article of fiber and high-precision optical fiber sensor is carried out unwrapping wire by yarn axle and fiber axis respectively, wherein fiber imports the abundant impregnating resin of steeping vat, and the high-precision optical fiber sensor goods drench glue aloft by drenching the glue hole, directly clamp-on pipe core with impregnated with resin and by the fiber behind the creel boundling location then via the center pit of creel, the first one-step forming of extruding in pipe, just the self-monitoring FRP bar muscle/rope of one-step forming is with twining further threading of a machine and plastic squeeze moulding, enter economizer bank afterwards to FRP muscle/rope preheating, remove the unnecessary resin of part; Swathe device by thermofin the section that requires resin not solidify is twined, wraps up in or wrap heat-barrier material, and the section of resin solidification just makes it directly enter curing pipe curing molding; End product muscle/rope is gone out production line by anchor clamps and anchor clamps tractive, cuts into single products in the centre position of the section of curing not with cutting machine.
Described high-precision optical fiber sensor is no slippage optical fiber or long gauge length optical fibre.
The preparation method of described no slippage optical fiber is: the fibre core and the covering periphery that pass optical element at optical fiber directly apply a stiffness layer and the relatively large resinous coat of thickness, and wherein resinous coat is resinous coat 4 or the fiber immersion agent in the common commercial single mode telecommunication optical fiber.
The preparation method of described long gauge length optical fibre is: apply one deck glue partiting layer at no slippage optical fiber surface compartment, or weave in its peripheral nothing bonding earlier/fiber-reinforced wrapped, compartment applies glue partiting layer again, wherein gauge length (being every segment length of glue partiting layer) is not less than 25cm, anchoring section length (promptly not applying each section length of glue partiting layer) is 2～3cm, and glue partiting layer is PVC coating, high temperature oil film or high temperature ointment.
Utilize the continuous traction system control Fibre Optical Sensor of tensioner and high stability and the combined state of fiber, assurance optical fiber along in the elongated scope of self-monitoring FRP bar muscle/rope accurately, evenly compound; The diameter of the internal diameter control self-monitoring FRP bar muscle/rope by pipe core, and utilize a machine that twines to twine the dynamics of silk and the dark and pitch of spiral shell that speed can be controlled screw thread; At the zone line of bringing-up section, utilize thermofin to swathe device and twine, wrap up in or wrap heat-barrier material for FRP muscle/rope, the resin of this section is not solidified; Thermofin is swathed device and traction drive system is cascaded by the circuit switching control system, control the curing section of self-monitoring FRP bar muscle/rope and not position, the length of the section of curing with draft travel; Produce the resin use as in the modification, the low temperature thermoset resin; Set up temperature and haulage speed coupling model, calculate, judge the resin solidification situation in muscle/rope, and make the instruction of whether adjusting by the temperature and the haulage speed input preset mode of microcomputerized controller with reality to resin solidification.
Beneficial effect of the present invention:
1, by the winding of the peripheral nothing bonding of Fibre Optical Sensor, braided fiber have been strengthened the shearing resistance of optical fiber, the ability of tension, improved its survival rate in self-monitoring FRP bar muscle/rope production run greatly, promptly reduce the rejection rate that Product industrialization is produced, reduced cost, improved the market competitiveness.
2, the FRP muscle/rope production technology of curing length controlled system has not only made things convenient for the interface of sensor to draw, also guarantee the premium properties of the each side such as sensing, mechanics of goods, and relate to hand labour in the whole process hardly, promote the industrialization degree of goods greatly, use for large-scale engineering and lay a good foundation.
3, than other intelligence structure materials, the goods that the present invention produces have the monitoring of distributed sensing, high stable and high-strength mechanical property, so its cost performance is very high.Also further improve the measuring accuracy of sensor among the present invention, made self-monitoring FRP bar muscle/rope that the present invention produced to adapt to various actual request for utilizations.Therefore, market outlook are wide.
The demand of present national large foundation Facilities Construction of high precision FRP muscle/Suo Shiying that 4, the present invention produced and operation especially can solve the difficult problem of the long term monitoring of the xoncrete structure in the various rugged surroundings, has very high social benefit.
(4) description of drawings
Fig. 1 is the structural representation of common commercial single-mode fiber.
Fig. 2 is the synoptic diagram that the present invention does not have the slippage optical fiber preparation.
Fig. 3 is the synoptic diagram of the long gauge length test philosophy of optical fiber.
Fig. 4 is the synoptic diagram of long gauge length optical fibre preparation of the present invention (method one).Wherein: 4a is the synoptic diagram of the peripheral coating of no slippage optical fiber glue partiting layer, and 4b is the structural representation of long gauge length optical fibre article cross sections.
Fig. 5 is the optical fiber-compound synoptic diagram of fiber dry type of long gauge length optical fibre preparation of the present invention (method two).Wherein: 5a is the synoptic diagram of the peripheral braiding/winding fiber of optical fiber, and 5b is the structural representation of optical fiber-fiber dry type composite article xsect.
Fig. 6 is the synoptic diagram of the elongated coating glue partiting layer of long gauge length optical fibre preparation of the present invention (method two).Wherein, 6a is the synoptic diagram of elongated coating glue partiting layer outside the fiber spool, and 6b is the structural representation of xsect of the goods of elongated coating glue partiting layer.
Fig. 7 is the synoptic diagram of the compartment coating glue partiting layer of long gauge length optical fibre preparation of the present invention (method two).Wherein, 7a is the synoptic diagram of compartment coating glue partiting layer outside the fiber spool, and 7b is the structural representation of the xsect of long gauge length optical fibre goods.
Fig. 8 is optical fiber of the present invention-compound synoptic diagram of fiber dry type.Wherein: 8a is the synoptic diagram of the peripheral braiding/winding fiber of optical fiber, and 8b is the structural representation of optical fiber-fiber dry type composite article xsect.
Fig. 9 is the synoptic diagram of the suitability for industrialized production of high-precision self-monitoring FRP bar muscle/rope of the present invention.
Figure 10 is the synoptic diagram of high-precision self-monitoring FRP bar muscle/rope of the present invention.Wherein: 10a is the structural representation of finished product muscle/rope and free section optical fiber interface, and 10b is the structural representation of the xsect of finished product muscle/rope.
(5) embodiment
In conjunction with legend, specific implementation process of the present invention is described in more detail:
Technical solution of the present invention mainly comprises the content of following three parts: the preparation of industrialization of (1) high-precision optical fiber sensor; (2) the compound enhancing Fibre Optical Sensor of the dry type of optical fiber-fiber; (3) pultrusion molding process of the self-monitoring FRP bar muscle/rope of curing length controlled.
(1), the preparation of industrialization of high-precision optical fiber sensor
The commercial fibres that can be used for extensive monitoring at present is generally telecommunication optical fiber, because the inconsistent method difference that causes the optical fiber structure design of purposes, and this species diversity makes and can descend making sensing measurement time spent precision.Simultaneously, the existing distributed optical fiber sensing technology exists the spatial decomposition energy, and requirement is even in the strain of spatial decomposition energy inner fiber, otherwise is difficult to accurately reflection truth.At the problems referred to above, proposed two kinds of no slippage optical fiber and long gauge length optical fibres can improve the test optical fiber precision on produce making method.
1) no slippage optical fiber
In conjunction with the accompanying drawings 2, directly apply one deck resinous coat 5 at fibre core 1 and covering 2 outsides, require its rigidity relatively large, and with covering 2 tight bond.Like this, the inner biography optical element (being fibre core 1 and covering 2) of protection guarantees resinous coat 5 and passes to be out of shape effectively between the optical element to transmit on the other hand on the one hand.According to such requirement, resinous coat 5 can adopt immersion agent (its principal ingredient has coupling agent, cementing agent, film forming agent etc.) or other similar products that fiber often uses in resinous coat 4, the compound substance industry, the interface in the time of can also strengthening optical fiber and fiber composite so at present.
2) long gauge length optical fibre
Method one: in conjunction with the accompanying drawings 4, above-mentioned no slippage optical fiber 9 is interrupted coating one deck glue partiting layer 11 (length is not less than 25cm) through coating machine 10, wherein glue partiting layer 11 can be high temperature oil film, high temperature ointment etc., is interrupted distance and (is generally 2～3cm) for the length of optical fiber anchoring section 12.
Method two: the first step, in conjunction with the accompanying drawings 5, with fortifying fibre 13 and no slippage optical fiber 9 together by fibrage machine 14, make fiber 13 form one deck fiber spool 15 around no slippage optical fiber 9, thereby guarantee no slippage optical fiber 9 in the centre, fortifying fibre 13 can be each fibrid such as carbon fiber, basalt fibre, glass fibre; Second step, the goods of the first step are applied one deck glue partiting layers 11 (in conjunction with the accompanying drawings 6) through coating machine 10, compartment (compartment length is a gauge length) peeling again, and skinner length is the length of optical fiber anchoring section 12, perhaps the goods of the first step directly is interrupted coating one deck glue partiting layer 11 (in conjunction with the accompanying drawings 7) through coating machine 10.
After process method one and method two are handled, when making intelligent muscle afterwards, the no slippage optical fiber 9 that glue partiting layer is 11 li do not bond together with the fiber of outside, guaranteed that no slippage optical fiber 9 can freely stretch in this section, promptly the strain of this section optical fiber is uniform when flexible.
(2), the compound enhancing Fibre Optical Sensor of the dry type of optical fiber-fiber
In order to make fragile Fibre Optical Sensor adapt to the mechanical productive technology of FRP muscle/rope, need strengthen protection to it, the present invention has taked not have a bonding braiding/winding fiber in that Fibre Optical Sensor is peripheral, also soon Fibre Optical Sensor and fiber to carry out dry type compound.According to different request for utilizations, kinds of fibers, weaving manner, enhancing amount, fiber type and quantity etc. can be carried out appropriate design.
In conjunction with the accompanying drawings 8, this type adopts weaves into fiber spool 15 around high-precision optical fiber sensor 16 through fibrage machines 14 with fortifying fibre 13, thereby guarantees the center of high-precision optical fiber sensor 16 at fiber spool 15.Wherein, high-precision optical fiber sensor 16 can be no slippage optical fiber or the long gauge length optical fibre described in the present invention, and the limit elongation of fortifying fibre 13 requires similar or bigger with from monitoring intelligent FRP muscle/Suo Suoyong fiber, and the impregnability of resin will be got well.
(3), solidify the pultrusion molding process of the self-monitoring FRP bar muscle/rope of length controlled
The use length of tailored version self-monitoring FRP bar muscle/rope is reserved in advance, at this feature, existing FRP muscle/rope cure process appropriate reconstruction is become to adapt to the technology that tailored version is produced from monitoring intelligent FRP muscle/rope.Following technology is mainly passed through in the production of threaded FRP muscle/rope commonly used at present: a threading → moulding is heating and curing for fiber roving impregnation → boundling plastic squeeze moulding → twine.The present invention has added curing length and has controlled this critical workflow on the basis of original technology.Concrete production procedure 9 is described in detail in conjunction with the accompanying drawings.
The packaged article 18 of fiber 17 and high-precision optical fiber sensor (is fiber spool above-mentioned in the invention 15 and does not have bonding coating high-precision optical fiber sensor 16, specifically in conjunction with the accompanying drawings 8) carry out unwrapping wire by yarn axle 19 and fiber axis 20 respectively, wherein (resin is in the thermosetting to fiber 17 importing steeping vats 21 abundant impregnations, low-temperature resins), and the packaged article 18 of high-precision optical fiber sensor drenches glue for fear of the bending damage aloft by drenching glue hole 22, directly clamp-on pipe core 25 with impregnated with resin and by the fiber 17 behind the creel 23 boundlings location then, the first one-step forming of extruding in pipe via the center pit of creel 23.Just the self-monitoring FRP bar muscle/rope of one-step forming need enter 27 pairs of FRP muscle/rope preheatings of economizer bank afterwards with twining a machine 26 further threading and plastic squeeze moulding, the unnecessary resin of removal part, and fiber and resin have had uniform temperature.Swathe 28 pairs of sections that require resin not solidify of device by thermofin to twine/wrap up in/wrap heat-barrier material, and the section of resin solidification just makes it directly enter curing pipe 29 curing moldings.Finished product muscle/rope 30 is gone out production line by anchor clamps 31 and anchor clamps 33 tractives, cuts into single products in the centre position of the section of curing not with cutting machine 34, is shelved on support 35 then or directly it is coiled into the muscle/rope dish of certain diameter.
Finished product muscle/rope 30 structures are seen accompanying drawing 10, and wherein the packaged article 18 of high-precision optical fiber sensor is in the centre of thermosetting FRP40, and the surface of finished product muscle/rope 30 evenly is covered with screw thread 39.
This production procedure has several crucial CONTROL PROCESS:
1, Optical Fiber Composite State Control.In order to improve the test optical fiber precision, require the packaged article 18 of fiber 17 and high-precision optical fiber sensor can be evenly accurately compound.In order to reach such purpose, on the one hand, tension controller 24 can be installed on creel 23, the initial tension that the packaged article 18 of assurance fiber 17 and high-precision optical fiber sensor enters pipe core 25 is identical; On the other hand, the continuous traction system that utilizes high stability is (as continuous hydraulic haulage system, comprise anchor clamps 31, anchor clamps 33 and traction drive system 32), (8 is consistent with the combined state of fiber 17 to guarantee packaged article along high-precision optical fiber sensor in the elongated scope of FRP muscle/rope.
2, the profile of self-monitoring FRP bar muscle/rope control.According to the purposes difference, the size of product and outer table status are that requirement differs.In this technology, the diameter of self-monitoring FRP bar muscle/rope be can control, the dynamics of silk and the dark and pitch of spiral shell that speed can be controlled screw thread twined and twine a machine 26 by the internal diameter of pipe core 25.
3, the length of self-monitoring FRP bar muscle/rope control.The variation of practical structures size requires the length of FRP muscle/rope of all kinds, accurately controls resin solidification section and the length of the section of curing not and be the key in the whole production flow process of self-monitoring FRP bar muscle/rope.The present invention swathes device 28 to circuit switching control system 37 with thermofin to be cascaded with traction drive system 32, when the stroke of anchor clamps 33 reaches preseting length, can open or close thermofin and swathe device 28, thereby the resin solidification section and the length of the section of curing are not implemented accurately to control, and accuracy requirement is in ± 5cm.If the one-way trip of traction requires length inadequately, self-monitoring FRP bar muscle/rope can be placed on above the support 35 or fold.
4, the Coupling Control of temperature and haulage speed.Among the present invention, the key of problem is the resin solidification in one section zone and the resin in adjacent another section zone does not solidify, also promptly not the temperature requirement of the section of curing be lower than the resin solidification temperature, the temperature of solidifying section must be higher than the resin solidification temperature.The heat-barrier material of the section of curing is just temporarily not heat insulation, if but for a long time to its heating, heat still can be delivered to self-monitoring FRP bar muscle/rope in a large number, causes resin solidification.Yet solidify fully heating of section, and can not excessive heat, not so can influence the quality of self-monitoring FRP bar muscle/rope and apparent.In whole technology, the type of resin, the temperature of heating and haulage speed are controlling factors.Combine the relative merits of each side, adopted among the present invention modification in, low temperature curing resin.Temperature and haulage speed are coupled for resin solidification, can calculate " temperature-haulage speed " resin solidification envelope diagram by test parameters in advance.In process of production, microcomputerized controller 36 calculates by the temperature and the haulage speed input preset mode of probe with reality, judges the resin solidification situation in self-monitoring FRP bar muscle/rope, and makes the instruction of whether adjusting.
Claims (5)
1. scale production process based on the distributed high-precision self-monitoring FRP bar muscle/rope of Fibre Optical Sensor is characterized in that: may further comprise the steps:
The first step, not having the packaged article (18) that bonding braiding/fiber-reinforced wrapped (13) form high-precision optical fiber sensor on every side at high-precision optical fiber sensor (16), also is the compound enhancing optical fiber of dry type of optical fiber-fiber;
Second step, preparation high-precision self-monitoring FRP bar muscle/rope: the packaged article (18) of fiber (17) and high-precision optical fiber sensor is carried out unwrapping wire by yarn axle (19) and fiber axis (20) respectively, wherein fiber (17) imports fully impregnating resin of steeping vat (21), and high-precision optical fiber sensor packaged article (18) drenches glue aloft by drenching glue hole (22), directly clamp-on pipe core (25) with impregnated with resin and by the fiber (17) behind creel (23) the boundling location then via the center pit of creel (23), the first one-step forming of extruding in pipe, just the self-monitoring FRP bar muscle/rope of one-step forming is with twining a machine (26) further threading and plastic squeeze moulding, enter economizer bank (27) afterwards to FRP muscle/rope preheating, remove the unnecessary resin of part; Swathe device (28) by thermofin the section that requires resin not solidify is twined, wraps up in or wrap heat-barrier material, and the section of resin solidification just makes it directly enter curing pipe (29) curing molding; End product muscle/rope (30) is gone out production line by two anchor clamps (31,33) tractive, cuts into single products in the centre position of the section of curing not with cutting machine (34).
2. the scale production process of the distributed high-precision self-monitoring FRP bar muscle/rope based on Fibre Optical Sensor according to claim 1, it is characterized in that: described high-precision optical fiber sensor (16) is no slippage optical fiber or long gauge length optical fibre.
3. the scale production process of the distributed high-precision self-monitoring FRP bar muscle/rope based on Fibre Optical Sensor according to claim 2; it is characterized in that: the preparation method of described no slippage optical fiber is: covering (2) periphery that passes optical element at optical fiber directly applies a stiffness layer and the relatively large resinous coat (5) of thickness, and wherein resinous coat (5) is resinous coat (4) or the fiber immersion agent in the common commercial single mode telecommunication optical fiber.
4. the scale production process of the distributed high-precision self-monitoring FRP bar muscle/rope based on Fibre Optical Sensor according to claim 2; it is characterized in that: the preparation method of described long gauge length optical fibre is: apply one deck glue partiting layer (11) at the surperficial compartment of no slippage optical fiber (9); or earlier in its peripheral nothing bonding braiding/fiber-reinforced wrapped (13); compartment applies glue partiting layer (11) again; wherein gauge length is that every segment length of glue partiting layer (11) is not less than 25cm; each section length that anchoring section length does not promptly apply glue partiting layer (11) is 2～3cm, and glue partiting layer (11) is the PVC coating; high temperature oil film or high temperature ointment.
5. the scale production process of the distributed high-precision self-monitoring FRP bar muscle/rope based on Fibre Optical Sensor according to claim 1, it is characterized in that: utilize the continuous traction system control Fibre Optical Sensor of tensioner (24) and high stability and the combined state of fiber, assurance optical fiber along in the elongated scope of self-monitoring FRP bar muscle/rope accurately, evenly compound; The diameter of the internal diameter control self-monitoring FRP bar muscle/rope by pipe core (25) twines a machine (26) and twines the dynamics of silk and the dark and pitch of spiral shell that speed can be controlled screw thread and utilize; Between economizer bank (27) and curing pipe (29), utilize thermofin to swathe device (28) and twine, wrap up in or wrap heat-barrier material for FRP muscle/rope, the resin of this section is not solidified; By circuit switching control system (37) thermofin is swathed device (28) and traction drive system (32) and be cascaded, control the curing section of self-monitoring FRP bar muscle/rope and not position, the length of the section of curing with draft travel; Produce the resin use as in the modification, the low temperature thermoset resin; Set up temperature and haulage speed coupling model, calculate, judge the resin solidification situation in muscle/rope, and make the instruction of whether adjusting by the temperature and the haulage speed input preset mode of microcomputerized controller (36) with reality to resin solidification.
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| CN101846565B (en) * | 2010-03-30 | 2014-03-12 | 重庆大学 | Method for implanting strain sensor based on cable anchoring region to realize on-line measurement of cable force |
| CN102797185B (en) * | 2012-07-10 | 2014-12-10 | 东南大学 | Intelligent FRP (Fiber Reinforced Polymer) composite rib based on carbon fiber distribution type sensing and large-scale production process thereof |
| CN107024750B (en) * | 2017-06-20 | 2023-10-03 | 淄博朗达复合材料有限公司 | Optical fiber packaging production system for sensing |
| CN107167167A (en) * | 2017-07-03 | 2017-09-15 | 江西通慧科技股份有限公司 | The laying structure and its method of built-in optical fiber sensor |
| CN109269533A (en) * | 2018-09-05 | 2019-01-25 | 北京百世通管道科技有限公司 | A kind of Intelligent optical fiber sensor skin and its preparation and application |
| CN109901272B (en) * | 2019-04-15 | 2024-07-02 | 武汉地震工程研究院有限公司 | Multi-core optical fiber intelligent composite rib, preparation method and safety monitoring method |
| CN112388990A (en) * | 2020-10-08 | 2021-02-23 | 山西省交通科技研发有限公司 | Intelligent carbon fiber bar with optical fibers implanted inside and manufacturing method thereof |
| CN114114575A (en) * | 2021-12-11 | 2022-03-01 | 东莞市光佳光电科技有限公司 | Production process of thermal-formed optical cable |
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