23 results about "Smart composites" patented technology

This invention discloses a smart composite cable based on modal isolation and its fabrication method. The cable comprises, from the inside out, a power transmission layer, a control signal layer, an optical fiber communication layer, and a smart protection / external shielding layer. The power transmission layer comprises, from the inside out, a conductor layer, conductor insulation, and a first shielding layer for attenuating low-frequency strong magnetic fields. The control signal layer comprises a total shielding layer and multiple control cores uniformly arranged circumferentially between the total shielding layer and the power transmission layer, with each control core having a sub-shielding layer. The optical fiber communication layer comprises multiple optical fiber groups uniformly arranged circumferentially, with each optical fiber group having a second shielding layer for electro-absorption; the second shielding layer is a non-metallic shielding layer. The smart protection / external shielding layer has a third shielding layer for equipotential shielding. This invention employs a layered composite structure to ensure mechanical performance reliability and uses an asymmetric shielding architecture to achieve full-spectrum interference suppression from extremely low frequencies to high frequencies.

The invention provides an intelligent composite material reinforcement and a preparation method thereof, and the preparation method comprises the following steps: respectively using optical fibers and fiber yarns as weaving yarns, introducing the weaving yarns into a weaving machine according to a preset arrangement path, and weaving according to the molding process requirements of corresponding layer connection tissues, the construction of the intelligent composite material reinforcement is realized by independently controlling the introduction path of the optical fiber along the preset direction; wherein the preset direction comprises one or more of the warp direction, the weft direction or the thickness direction of the intelligent composite material reinforcement. According to the invention, the optical fiber is introduced into the intelligent composite material reinforcement body under the condition that the optical fiber is not damaged, and the distribution of the optical fiber in the intelligent composite material reinforcement body can be regulated and controlled by adjusting the introduction direction, the number and the bending angle of the optical fiber; and the method has the advantages of various organization structures, various fiber types, large reinforcement size and density control range, strong designability, good integrity, convenient operation in the weaving process and the like.

The invention is suitable for the technical field of composite material forming, and provides a complex special-shaped structure production process method based on an intelligent composite material mold, and the production process method comprises the following steps: S1, preparing the intelligent composite material mold; s2, a complex special-shaped structure is formed; s3, controllable flexible demolding is carried out; s4, the intelligent composite material mold is subjected to shape restoring; the complex special-shaped structure is prepared through the intelligent composite material mold composed of the thermal response resin matrix and the mixed fiber felt, integrated forming of the complex special-shaped structure can be achieved, and it can be guaranteed that the mold strength and the product size precision are greatly improved, and the mold reusability is greatly improved.

The invention provides a pH response type MOF (Metal Organic Framework) material, a composite photosensitive resin system containing the pH response type MOF material and application of the pH response type MOF material in a dental appliance. The pH response type MOF material is a multifunctional metal organic framework material (Guardian-MOF) with a'core-shell-satellite 'structure, the MOF is chemically bonded into a light-cured resin matrix to form intelligent composite resin capable of 3D / 4D printing, and a prepared orthodontic appliance has required mechanical properties macroscopically so as to complete an orthodontic function, and has the advantages of being simple in preparation process, low in cost and the like. The oral cavity antibacterial and targeted remineralization treatment system is a distributed and intelligent'micro clinic 'microcosmically, can accurately respond to an oral cavity pathogenic microenvironment (low pH) and cooperatively execute multiple antibacterial and targeted remineralization treatment, and has a remarkable application prospect.

The application discloses a stable unfolding control method based on an intelligent composite material pod rod, and belongs to the technical field of controllable unfolding.The method comprises the following steps: pasting two heating films one and two on a pod rod half piece in sequence, and arranging a winding shaft, and realizing extrusion winding of the pod rod by the winding shaft; pasting an arc piece on the heating film one, and the glass transition temperature of the arc piece is higher than that of the pod rod half piece; the heating film two is powered on first during unfolding, after the pod rod segment pasted with the heating film two is unfolded, the heating film one is powered on, the part of the heating film which is not pasted with the arc piece first reaches the glass transition temperature of the material, and is unfolded under the driving of the shape memory function, and the part pasted with the arc piece has a higher glass transition temperature, and continues to be heated to realize stable unfolding.The application can be used under the condition that power supply energy and power supply lines of a spacecraft are insufficient, and overcomes the problem of insufficient power supply energy of the spacecraft.

The application relates to an intelligent composite material and a preparation and damage monitoring method thereof, and belongs to the technical field of intelligent materials and structural health monitoring, and solves one of the problems in the prior art, i.e., the problems of a complex intelligent composite material detection device, easy damage and failure of a built-in sensor, difficult signal analysis and influence on the performance of a main body material. The application discloses an intelligent composite material embedded with a sensing network, the main body of the intelligent composite material is a fiber reinforced resin matrix composite laminated plate structure, which is composed of a resin matrix, a fiber reinforced body, a conductive sensing fiber and an electrode; the fiber reinforced body is composed of multiple layers of prepreg, the conductive sensing fiber is clamped between the prepreg layers in a orthogonal network form and the two ends of the conductive sensing fiber are exposed from the end surface of the intelligent composite material. The material realizes real-time monitoring of internal damage of the composite material, especially ablation damage, under the premise that the performance of the main body material is basically unchanged, and the material structure is simple, the monitoring signal is easy to analyze, and the material is durable.

The invention provides a printing head of a direct-writing type 3D printer and the direct-writing type 3D printer, and relates to the technical field of 3D printing. The printing head comprises a storage shell, a plurality of storage barrels, a nozzle, a spherical fixed shell, a spherical rotating shell and a driving mechanism; a plurality of vent holes are formed in the spherical fixing shell; a plurality of air outlet holes are formed in the spherical rotating shell; and the driving mechanism is used for driving the spherical rotating shell to rotate in the spherical fixed shell, so that the materials in one storage barrel are extruded out through the nozzles, or the materials in the multiple storage barrels are extruded out through the nozzles. Composite printing can be carried out on two or more materials under the condition that the printing head is not replaced, use is convenient, rapid switching of the materials in the continuous printing process is achieved, errors caused by position deviation in the process of frequently replacing the printing head in the prior art are avoided, and for preparation of intelligent composite materials, the production efficiency is greatly improved. And the method has important application prospects in diversified combination design and development and the like.

The invention discloses a photovoltaic micro-grid intelligent composite protection device, and relates to the related field of photovoltaic micro-grids, the photovoltaic micro-grid intelligent composite protection device comprises a protection frame, a power grid control cabinet and a ceiling, the power grid control cabinet is assembled on the inner side of the protection frame, the ceiling covers the top of the protection frame, and a driving part is in transmission connection with a power-off mechanism. The power-off mechanism is used for cutting off a power supply when the power grid control cabinet breaks down, and the power-off mechanism is in linkage with the adjusting mechanism. At least one group of radiating fins are rotationally assembled in the power grid control cabinet, and the adjusting mechanism is in transmission connection with the radiating fins and is used for adjusting the angles of the radiating fins. According to the intelligent composite protection device for the photovoltaic micro-grid, a physical barrier is formed through the protection frame and the ceiling, and elements are prevented from losing efficacy due to high temperature; when a fault is handled, the driving piece is linked with the power-off mechanism to quickly cut off a power supply, thereby preventing fault expansion, remarkably reducing maintenance cost, integrally adapting to field working conditions, effectively prolonging service life of equipment, and improving operation reliability of a micro-grid.

The invention discloses an environmental response type high-barrier degradable antibacterial intelligent composite material and a preparation method thereof. The material is of a four-layer composite structure and comprises a plasma pretreated paper base layer, a humidity response type organic barrier layer, a multifunctional inorganic developing antibacterial layer and a dynamic traceability organic barrier layer. Dynamic humidity adjustment is achieved through a polycaprolactone / modified bamboo fiber composite system, broad-spectrum antibiosis is achieved through a nano-silver / cinnamyl aldehyde compound antibacterial agent, and intelligent traceability is achieved by integrating an NFC chip and a temperature-sensitive color-changing substance. The water vapor transmission rate of the material is smaller than or equal to 6.0 g / (m.24 h), the antibacterial rate is larger than or equal to 99.9%, the 180-day soil degradation rate is larger than or equal to 60%, the material has the high barrier property, degradability, antibacterial property and intelligent response function, the defects that an existing material is single in function and unstable in interlayer combination are overcome, and the material is suitable for high-end food and medicine packaging and logistics turnover boxes.

The intelligent composite window comprises a window frame, an electrochromic glass unit, a flexible regression reflection film unit and a control unit, the electrochromic glass unit, the flexible regression reflection film unit and the control unit are fixedly installed on the window frame, the electrochromic glass unit is connected to the control unit, and the control unit controls the flexible regression reflection film unit according to the outdoor environment temperature. A control mode needing to be triggered at present is recognized according to a preset temperature threshold value, an electric control signal is generated accordingly, and the electric control signal is sent to the electrochromic glass unit so as to dynamically adjust the light transmitting state of the electrochromic glass unit; the flexible regression reflection film unit is movably arranged on the window frame, the control unit controls the flexible regression reflection film unit to move between a covering position and a folding position according to the outdoor environment temperature and the environment self-adaption control logic, and when the flexible regression reflection film unit is located at the covering position, the flexible regression reflection film unit covers the outer side surface of the electrochromic glass unit; in the stowed position, the flexible retro-reflective film unit is moved away to expose the electrochromic glass unit.

The invention relates to the technical field of antennas, and discloses a miniaturized portable phased-array antenna design method and device, and the method comprises the steps: obtaining multi-physical field sensing data on an intelligent composite substrate in real time, and fusing the multi-physical field sensing data into a current comprehensive physical state vector; obtaining a prediction vector at a future moment based on the current and historical state vectors through a state prediction model; collaborative optimization calculation is carried out based on the prediction vector, and an optimal physical deformation state and an optimal electronic phase compensation matrix are determined; and a hybrid compensation instruction is generated to drive the piezoelectric micro-actuator array and the electronic phase shifter array so as to complete physical and electronic bimodal compensation. By adopting predictive feed-forward control and collaborative optimization decision, the problem of response delay of a traditional compensation method is solved, complex environment disturbance can be quickly and accurately compensated, and the performance stability and reliability of the antenna in a dynamic environment are remarkably improved.

The invention discloses an intelligent composite damping system and method for self-sensing stepless rigidity regulation and control. The intelligent composite damping system comprises an intelligent monitoring system, a damping system, a limiting guiding system and a bearing system. The intelligent monitoring system comprises data acquisition, analysis, air pressure control and rigidity regulation and control modules, and can monitor the pressure in the air pressure bag in real time and regulate the volume of the air pressure bag; the damping system comprises a viscoelastic damper and a metal yield type damper which are nested inside and outside, the stroke of the viscoelastic damper is limited through the volume change of an air pressure bag, and the partial or complete action of the metal yield type damper is achieved. The limiting guide system guarantees the movement stability of components, and the bearing system provides structural support. According to the intelligent composite damper, the rigidity can be steplessly regulated and controlled according to different working conditions such as wind loads and earthquake loads, the advantages of the two dampers are fully played, the energy dissipation capacity and the structural stability are improved, and the intelligent composite damper is suitable for civil engineering structure energy dissipation and shock absorption scenes.

A method for preparing a highly elastic, skin-friendly, impact-resistant smart yarn and the smart yarn itself are disclosed. The preparation method includes: First, immersing a nanofiber membrane strip in a shear-hardening adhesive dispersion, followed by drying and unidirectional twisting to obtain an impact-resistant yarn; Second, sequentially wrapping the impact-resistant yarn and conductive metal wires with different twist directions onto an elastic yarn to obtain an elastic impact-resistant smart composite yarn; Third, coating short fibers onto the outer surface of the elastic impact-resistant smart composite yarn to obtain a highly elastic, skin-friendly, impact-resistant smart yarn. The yarn comprises an elastic yarn as the core yarn, a first wrapping layer, a second wrapping layer, and a short fiber outer layer. The impact-resistant yarn of the first wrapping layer is wrapped around the outer surface of the elastic yarn, the conductive metal wires of the second wrapping layer are wrapped around the outer surface of the first wrapping layer with opposite twist directions, and the short fiber outer layer is wrapped around the outer surface of the second wrapping layer. Therefore, this design can produce an impact-resistant yarn that simultaneously possesses high elasticity and sensing functions.

The invention discloses an automobile sealing strip microwave continuous vulcanization and seamless joint angle forming method, and relates to the technical field of automobile part manufacturing, a semiconductor quantum dot microwave sensitizer subjected to surface functionalization treatment, a microencapsulation activator system and an EPDM rubber base material are mixed, and a main body intelligent composite material is prepared; preparing a special digital wire material containing a depolymerizing agent and the same-frequency out-phase quantum dots for the joint angle; and after precise extrusion and shaping are conducted on the main body intelligent composite material, the main body intelligent composite material is fed into a dynamic microwave vulcanization cavity, and continuous and uniform vulcanization of the sealing strip main body is achieved through selective microwave vulcanization catalyzed by quantum dots. Molecular-level seamless fusion of the connecting corner and the main body is achieved, physical joints of a traditional process are thoroughly eliminated, and the sealing performance and long-term durability of the sealing strip are remarkably improved; quantum dot catalysis selective area microwave vulcanization and multi-energy field co-vulcanization are cooperated, it is guaranteed that vulcanization of the sealing strip body and the corner connecting area is uniform, and the performance consistency is greatly improved.

The invention relates to the field of cables, and discloses a cable insulation layer structure, a cable and a preparation method thereof.The cable insulation layer structure sequentially comprises a high-resistance polyethylene core insulation layer, an ion purification interface layer containing an ion trapping agent and an intelligent composite protection layer from inside to outside; the ion purification interface layer is used for capturing invaded corrosive ions, the intelligent composite protection layer is made of a composite material, and a microsensor network associated with the piezoelectric functional filler is further embedded in the insulation layer structure and used for collecting damage signals. According to the invention, through multi-mechanism cooperation, erosion of moisture and harmful ions to the core insulating layer is effectively inhibited, and the reliability of long-term operation of the cable is improved; meanwhile, self-sensing and early warning of mechanical damage are realized, and the safety of a cable system is improved.

This utility model discloses an intelligent composite layered structure door, which, from the outside to the inside, includes a surface protective layer, a sound insulation main layer, a vacuum insulation layer, and a fireproof inner layer. An intelligent interlayer is also provided between the vacuum insulation layer and the fireproof inner layer. The intelligent interlayer includes a layer body, and a wiring harness channel is provided inside the layer body. Mounting slots for installing sensors are evenly distributed on the rotating side of the layer body, and the mounting slots are connected to the wiring harness channel. By adding an intelligent interlayer between the functional layers, the door achieves the triple core functions of sound insulation, heat insulation, and fireproofing, while allowing for the addition of corresponding monitoring sensors as needed, enabling intelligent use of the door. Simultaneously, the connection design between the wiring harness channel inside the intelligent interlayer and the mounting slots allows for concealed integration and centralized wiring of the monitoring sensors, avoiding the risk of exposed wiring aging and improving the aesthetics of the door.

This invention discloses a method for continuous microwave vulcanization and seamless corner molding of automotive sealing strips, relating to the field of automotive parts manufacturing technology. It involves mixing a surface-functionalized semiconductor quantum dot microwave sensitizer and a microencapsulated activator system with an EPDM rubber substrate to prepare a main intelligent composite material. A special digital material filament containing a depolymerizing agent and co-frequency heterogeneous quantum dots is prepared for the corners. After precision extrusion and shaping, the main intelligent composite material is fed into a dynamic microwave vulcanization chamber. Through quantum dot-catalyzed selective microwave vulcanization, continuous and uniform vulcanization of the sealing strip's main body is achieved. This invention achieves seamless molecular-level fusion between the corners and the main body, completely eliminating physical seams found in traditional processes, significantly improving the sealing performance and long-term durability of the sealing strip. The synergistic use of quantum dot-catalyzed selective microwave vulcanization and multi-energy field co-vulcanization ensures uniform vulcanization of the sealing strip's main body and corner areas, resulting in significantly improved performance consistency.

The invention discloses an additional elevator outlet connecting plate with a multi-stage composite vibration reduction function. The additional elevator outlet connecting plate comprises a composite energy dissipation and vibration reduction connecting device, a middle tooth-shaped connecting piece, a top tooth-shaped connecting piece, a bottom tooth-shaped connecting piece and a hollow connecting plate. The top part is fixedly connected with the elevator, and the bottom part is fixedly connected with the body structure The composite device is hinged to the top part and the bottom part through the middle part to form graded sliding. A plurality of in-plate holes are formed in the hollow plate, fishbone type energy consumption connecting rods which are reversely arranged are arranged in the hollow plate, and the surfaces of fishbone branches of the hollow plate are coated with intelligent composite woven cloth containing shear thickening glue. Graded clamping movement when external force is increased is achieved through the gradually-changed sawtooth sizes of the middle part, the top part and the bottom part. Through the gradually-changed sawtooth structure, the connecting piece slides to consume energy in a graded mode under small and medium external force, and therefore the structural rigidity is dynamically adapted; the temperature stress is reduced by releasing thermal expansion difference through tooth seams; the reverse fishbone connecting rod achieves multidirectional viscous energy consumption and graded vibration reduction, and effectively solves the contradiction that a traditional connecting plate is too large in rigidity, poor in comfort and ineffective in vibration due to too small vibration.

The application discloses a kind of acoustic wave monitoring systems based on optical fiber sensing, it is related to optical fiber sensing acoustic wave monitoring technical field, contain multiple modules, optical fiber sensing module uses the novel microstructure optical fiber with unique porous structure, surface is coated with intelligent composite material, also fill nanofluid, enhance response to acoustic wave, signal conversion module combines the advantage of multiple photoelectric conversion, according to light intensity dynamic switching mode, signal processing module uses hybrid filtering and adaptive quantization technology, data analysis module is based on the network of deep learning, fusion multi-scale feature, early warning module is based on risk assessment dynamic early warning, comprehensive multiple factor adjustment threshold and level, each module is coordinated, realize the efficient monitoring, analysis and early warning of acoustic wave signal.The application has excellent performance, high sensitivity, wide dynamic range;It can be intelligent and accurate analysis early warning, judge acoustic wave characteristics and timely alarm;Data storage is safe and efficient, provides advanced and reliable scheme for acoustic wave monitoring.

The invention discloses an intelligent composite material structure deformation space-time regulation and control method and system based on stress relaxation, and belongs to the technical field of intelligent composite material structure deformation regulation and control. The method comprises the steps that the shape memory layer is stretched in a high-temperature environment with the temperature higher than the glass-transition temperature of the shape memory layer and shape preserving is conducted, different stress relaxation is generated by controlling the deformation maintaining time, after cooling and fixing pre-deformation, the shape memory layer is compounded with the elastic layer, external stimulation is applied to trigger dynamic deformation, and space-time regulation and control over the deformation rate and amplitude are achieved; a plurality of composite structures can be combined in an array mode, and serialized deformation is achieved. The structure does not need to be redesigned or the stimulation sequence does not need to be accurately controlled, operation is easy and convenient, regulation and control are flexible, deformation precision is high, and the method is suitable for the fields of soft actuators, mechanical logic encoders and the like.

The invention discloses a sound wave monitoring system based on optical fiber sensing, and relates to the technical field of optical fiber sensing sound wave monitoring, the sound wave monitoring system comprises a plurality of modules, the optical fiber sensing module adopts a novel microstructure optical fiber with a unique porous structure, the surface of the optical fiber sensing module is coated with an intelligent composite material, and the optical fiber sensing module is filled with nanofluid to enhance response to sound waves; the signal conversion module combines various photoelectric conversion advantages and dynamically switches modes according to light intensity, the signal processing module adopts a hybrid filtering and adaptive quantification technology, the data analysis module is a network based on deep learning and integrates multi-scale features, the early warning module dynamically warns early according to risk assessment and integrates multiple factors to adjust thresholds and levels, and all the modules cooperate to achieve the purpose of early warning. And efficient monitoring, analysis and early warning of sound wave signals are realized. The sensor is excellent in performance, high in sensitivity and wide in dynamic range; intelligent and accurate analysis and early warning can be realized, sound wave characteristics are judged, and timely warning is realized; data storage is safe and efficient, and an advanced and reliable scheme is provided for sound wave monitoring.