82 results about "Biomimetic design" patented technology

The invention discloses a liquid metal enhanced triboelectric material with a bionic surface and a preparation method of the liquid metal enhanced triboelectric material, and belongs to the technical field of triboelectric materials. The preparation method comprises the following steps: mixing an interface stabilizer TEMPO oxidized nanocellulose with a liquid metal gallium-indium alloy to obtain TOCNF (at) LM liquid metal-based micro-nano liquid drops; and doping the obtained TOCNF-coated LM liquid metal-based micro-nano liquid drops into a base material waterborne polyurethane, and constructing a bionic rose petal micro-mastoid process structure by adopting a template method, so as to obtain the liquid metal enhanced triboelectric material with a bionic surface. The composite material with the rose petal micro-nano structure is prepared through bionic design, the micro-mastoid structure of rose petals is successfully re-carved, and the triboelectric property of the waterborne polyurethane is remarkably improved by utilizing TOCNF at LM liquid metal-based micro-nano liquid drops, so that the open-circuit voltage of the prepared composite material reaches 250V, the short-circuit current reaches 8.19 mu A, and the triboelectric property of the waterborne polyurethane is remarkably improved. The short-circuit transfer charge quantity reaches 95nC, and theoretical and practical guidance is provided for the design of a high-performance triboelectric material.

The invention discloses a nonlinear path planning method for a melt electrostatic direct writing stent guided by micropore characteristics, and relates to the technical field of additive manufacturing. Comprising the following steps: according to design requirements, defining binary functions L (x, y) and W (x, y), and respectively controlling spatial distribution of pore length and width of micropores; an XY plane is divided into orthogonal reference line grids through two groups of equidistant reference lines parallel to an X axis and a Y axis, namely an X (y) line and a Y (x) line, and each reference line can determine an upright plane, namely an X (y) plane and a Y (x) plane; and then determining geometric intersection points of the L / 2 (x, y) and W / 2 (x, y) function curves and an X (y) plane and a Y (x) plane determined by the reference line as path intersection points by using zigzag broken lines, after all the intersection points are obtained, sequentially connecting the intersection points to obtain a designed nonlinear path, and carrying out feasibility verification on the generated nonlinear path. The method provides a parameterized solution for micro-structure bionic design of the MEW stent, and is suitable for stent manufacturing with complex tissue regeneration requirements.

The utility model discloses a bionic machine framework, and belongs to the technical field of bionic equipment. The device mainly comprises a main rod and a bionic flight mechanism arranged on the main rod, the main rod is rectangular, and a first fixing frame, a controller mounting frame and a battery mounting frame are sequentially arranged on the main rod in the length direction of the main rod. According to the bionic machine framework, the use of redundant materials is reduced through the rectangular and tubular main rods, the overall weight is reduced through reasonable arrangement of the weight reduction grooves and the weight reduction holes, and secondly, unnecessary material consumption is effectively reduced through the distributed weight reduction grooves in the structural design of the controller mounting frame and the battery mounting frame, so that the cost is reduced. Especially, the battery mounting frame is distributed through symmetrical second weight reduction grooves, the weight is reduced, the overall stability of the framework is improved, through the optimized design, it is ensured that the bionic machine is light in weight, meanwhile, the bionic machine still has enough stability and strength, and the advantages of bionic design can be brought into full play.

This invention provides a genetically engineered biomimetic microsphere for hydration remodeling, its preparation method, and its application, belonging to the field of biomedical technology. This invention develops an injectable composite system, GBA / SRGN@HADA@GelMA, which possesses the ability to regulate hydration and intervene in genes through interface biomimetic design and multi-level functional integration. It uses HADA as a moisturizing outer layer, provides mechanical support through GelMA microspheres, and achieves targeted delivery of SRGN siRNA through G5-GBA loading, thereby achieving synergistic regulation of the degenerative nucleus pulposus microenvironment. GBA / SRGN@HADA@GelMA reduces the expression of inflammatory factors and matrix degradation genes, and significantly promotes the accumulation of HA and lubricating proteins. This enhances the water retention capacity and interfacial lubrication of the nucleus pulposus, thereby improving compressive elasticity and energy absorption capacity. This invention is the first to combine continuous water regulation, lubrication, mechanical buffering, and extracellular matrix homeostasis regulation to synergistically delay intervertebral disc degeneration, providing an excellent treatment strategy for degenerative intervertebral disc diseases.

The invention belongs to the field of new energy material synthesis and electro-catalysis, and particularly relates to a chiral molecule coupling layered hydroxide catalyst and a preparation method and application thereof. The invention innovatively provides a synergistic strategy fusing chiral molecular engineering and a bionic design principle to improve the oxygen evolution performance of the nickel-iron layered hydroxide, a one-step hydrothermal method is adopted for preparation, controllable anchoring of chiral molecules between layers of the nickel-iron layered hydroxide is realized, and the performance of the nickel-iron layered hydroxide is improved. Chiral molecules with a proton acceptor function are introduced into a NiFe-LDH interlayer; due to the steric hindrance and coordination characteristics of chiral molecules, regular growth of NiFe-LDH laminates can be disrupted, and more lattice defects, edge sites and unsaturated coordination metal centers are induced to be generated. The coordination effect of chiral molecules and metal centers (Ni and Fe) can adjust the electronic state and valence state of metal, so that the reaction energy barrier is reduced, and the reaction kinetics is accelerated.

The invention discloses a bionic design scheme intelligent generation method and system fused with a dual-granularity knowledge base, and belongs to the technical field of bionic design and artificial intelligence. The method comprises the following steps: firstly, constructing a dual-granularity knowledge base containing fine-granularity knowledge and coarse-granularity knowledge; secondly, a dual-granularity knowledge retrieval method fusing semantic retrieval and sub-library scoring is adopted, and related biological strategies are accurately obtained; and finally, performing evaluation and iterative optimization on the generated bionic design scheme through a multi-language model expert consultation mechanism. The technical problems that in existing bionic design, the manual screening efficiency is low, and domain knowledge limitation exists in large language model application can be solved, a high-quality bionic design scheme can be intelligently generated, and the method has wide application prospects in the fields of materials, structures, system design and the like.

The invention discloses an ultralow-lift impeller vortex grid bionic design method for blade drag reduction, and relates to the technical field of water conservancy machinery and pump station engineering, and the method comprises the following specific steps: screening out candidate axial flow pump blades meeting target ultralow-lift working condition requirements; constructing a groove structure parameter data set, obtaining blade performance simulation data corresponding to each groove structure parameter group by utilizing numerical simulation, and constructing a sample set; based on the sample set, performing hyper-parameter optimization and training on a pre-constructed neural network model to obtain a neural network prediction model; and obtaining blade performance simulation data corresponding to each groove structure parameter group in the groove structure parameter data set of the to-be-analyzed blade by using the trained neural network prediction model, and determining an optimal groove structure parameter by using a non-dominated sorting genetic algorithm. According to the method, the optimal groove structure parameters for remarkably reducing the flow resistance and optimizing the flow characteristics of the surface of the impeller can be quickly obtained, and the overall performance of the ultralow-lift axial flow pump device is improved.

The invention provides an electric elephant toy, and aims to improve the interestingness of the toy through bionic design and an interaction function. The toy comprises a body, a head, a tail and four legs, wherein the head, the tail and the legs are all movably mounted on the body. A first driving mechanism is arranged in the body and comprises a first motor and a first gearbox, the gearbox is provided with a walking output shaft, a tail swinging output shaft and a head shaking output shaft, the walking output shaft, the tail swinging output shaft and the head shaking output shaft drive the legs to walk, the tail to swing and the head to shake respectively, and the walking posture of the elephant toy is more vivid. In addition, a face touch sensing element and a forehead touch sensing element are installed on the surface of the head, and a button is further fixedly installed on the body. When a child touches the sensing element or presses the button, the toy can trigger corresponding actions and sounds, and interactivity is enhanced. Through bionic design and an interaction function, the electric elephant toy is more interesting and attractive, and is suitable for entertainment and education of children.

The application discloses a preparation method of an interpenetrating phase ceramic dental material and belongs to the technical field of biomedical materials. The application is based on the porous foam structure and cavity tissue of bird skeletons for biomimetic design, two kinds of biomimetic bird bone structures combining the characteristics of annular hyoid structures and cavity tissues are established, and according to the bird skull cooperative damping mechanism, a mortise and tenon structure with the characteristics of cooperative bearing and buffering is constructed, the structure has more excellent mechanical bearing performance and deformation stability compared with a traditional structure. The zirconium oxide-hydrogel interpenetrating phase material prepared by a photo-crosslinking method, the composite design of the soft phase and the hard phase material not only significantly improves the energy absorption characteristics of the material, but also effectively improves the fracture toughness of the dental material. On this basis, a functional coating is constructed on the surface of the material by using a sol-gel dip coating process, and the problems of insufficient corrosion resistance and wear resistance of the dental material in the oral environment are further solved.

The invention discloses a robot skin temperature regulation and control system and method based on bionic heat conduction, relates to the technical field of robot temperature control, and aims to solve the problem that a current humanoid robot cannot realize personalized temperature regulation of different trunk part areas. The system comprises a temperature control device and a plurality of local control devices in communication connection with the temperature control device, the temperature control device and the plurality of local control devices are all connected with a bionic skin inner layer, each local control device comprises a local control module and a flow controller connected with the local control module, the local control module is connected with an AI sensing feedback module, and the flow controller is connected with the AI sensing feedback module. The AI sensing feedback module comprises a feedback unit, and the feedback unit receives the integrated data and transmits feedback information to each local control module. The temperature regulation of the inner layer of the bionic skin in each area is realized by utilizing a plurality of local control devices, and intelligent feedback sensing can be performed by virtue of an AI sensing feedback module, so that the temperature control bionic design of the robot is realized.

The utility model provides a motorized spindle cooling jacket applying a composite bionic microstructure and a motorized spindle. The super-hydrophobic bionic shark scale microstructures at the two ends of the motorized spindle cooling sleeve achieve smoother fluid conduction by reducing resistance of cooling liquid in a flow channel. Compared with a traditional design, the flow speed of cooling liquid is higher, and energy loss is smaller. The super-hydrophilic bionic Echink microstructure in the middle greatly improves the heat transfer efficiency by increasing the contact area of fluid and the inner wall and prolonging the contact time of the fluid and the inner wall, and stable operation of the motorized spindle under the high heat load condition is ensured. By means of the flow channel microstructure of the bionic design, the pump power requirement needed by the cooling system is remarkably reduced, the energy consumption of fluid circulation is reduced, and the overall energy-saving performance of the system is improved. Due to the characteristics of the bionic microstructure, the inner wall of the water jacket has better anti-pollution performance and corrosion resistance, scaling and loss are reduced, the service life of the water jacket is prolonged, and the maintenance cost is reduced.

The invention discloses a bionic-design additive manufacturing air-cooled radiator, and relates to the technical field of radiators, the bionic-design additive manufacturing air-cooled radiator comprises a fixing plate fixed on a heat source, the top end of the fixing plate is vertically provided with truncated conical pin fins in a staggered manner, and middle through holes are formed in the middle surfaces of the truncated conical pin fins at equal intervals; trapezoidal top holes are formed in the surfaces of the tops of the truncated conical pin fins, and inserting sticks are fixed to the tops, close to the boundaries of the two sides of the fixing plate, of the truncated conical pin fins in an inclined and outward mode; the overall radiator structure design of bionic multi-scale three-dimensional pin fin / perforation / bifurcated drainage and other composite geometries is adopted, and the quality-thermal resistance-pressure drop comprehensive performance is optimized under the same air side air channel and the unified FOM index.

This utility model discloses a wind-driven surface vehicle based on a jellyfish-inspired biomimetic design, comprising a float, a sail, an elastic diaphragm, stabilizing blades, an inflatable assembly, solar photovoltaic panels, and a controller. The float is an elliptical plate with an internal cavity. Multiple stabilizing blades are regularly arranged around the float. The surface of the sail is arranged at a relative angle to the long axis of the float. There are two sets of solar photovoltaic panels, arranged on both sides of the sail and electrically connected to the battery module inside the float. The elastic diaphragm covers the bottom of the float, forming an inflatable air chamber between the diaphragm and the bottom surface of the float. This surface vehicle can navigate in natural wind conditions without external power input, exhibiting good navigation stability and long endurance. It is particularly suitable for long-term drift monitoring of the ocean surface, support for distributed sensor network nodes, and surface micro-energy harvesting platforms.

This invention belongs to the field of biomaterials and tissue engineering technology. It relates to a PRP-loaded dopamine-modified 3D nanofiber sponge and its preparation method. The PRP-loaded dopamine-modified 3D nanofiber sponge prepared by this invention utilizes a biomimetic design strategy, inspired by the adhesion mechanism of marine mussels, and employs PDA (polydopamine) surface modification technology to form a bioactive interface layer on the nanofiber surface. The active functional groups on the PDA surface bind with growth factors in PRP, forming a stable PDA-PRP composite functional layer. While maintaining the high porosity and suitable mechanical properties of the 3D nanofiber sponge, the biomimetic modification with polydopamine improves the loading efficiency of PRP and the interfacial bonding strength, thus extending the sustained-release period of growth factors.

The invention discloses a design method of a double-dot-matrix turtle shell bionic truncated pyramid dot matrix structure, and belongs to the technical field of dot matrix structures. The design method comprises the steps that a truncated pyramid dot matrix unit cell structure is designed; performing turtle shell bionic design on the truncated pyramid dot matrix unit cell structure according to the characteristics of a fibrous foam middle layer and a turtle shell suture structure of the turtle shell to obtain a turtle shell bionic truncated pyramid dot matrix unit cell structure; the turtle shell bionic design comprises the steps that bionic foam pore lattice structure design is conducted on the bottom of the truncated pyramid lattice unit cell structure, bionic cutin shield piece design is conducted on the top face and the side face of the truncated pyramid lattice unit cell structure, and bionic bone seam design is conducted on the joint of the top face and the side face of the truncated pyramid lattice unit cell structure. The end faces of the multiple turtle shell bionic truncated pyramid dot matrix unit cell structures are connected in a one-up-one-down mode, and the double-dot-matrix turtle shell bionic truncated pyramid dot matrix structure is formed. The light weight degree and the energy absorption performance of the part can be improved.

The utility model is suitable for the technical field of forage conveying, and provides a straw forage scraper elevator which comprises a shell, a feeding port communicated with the interior of the shell is formed in the upper surface of the shell, a discharging port communicated with the interior of the shell is formed in the lower surface of the side, away from the feeding port, of the shell, and two chains used for transmission are arranged in the shell. A plurality of tooth-shaped steel scrapers and rubber flat-head scrapers are arranged on the two chains, the tooth-shaped steel scrapers and the rubber flat-head scrapers are alternately arranged on the two chains respectively and are connected through pin keys, each tooth-shaped steel scraper comprises a scraper body, a plurality of sawtooth-shaped tooth grooves are formed in the top of each scraper body, and each tooth-shaped tooth groove is communicated with the corresponding tooth groove. The tooth-shaped steel scraper adopts bionic design, simulates claws of animals, and can effectively scrape fibrous materials and prevent the materials from slipping, and the rubber flat-head scraper can prevent small-particle materials from leaking out, so that the sealing performance of the scraper elevator is improved, and the conveying efficiency is improved.

The utility model relates to the technical field of intelligent robots, in particular to an explanation robot, which comprises a body part, an explanation part, an explanation part and an explanation part, the armoring part comprises a body armoring piece, upper limb armoring pieces and lower limb armoring pieces, the body armoring piece is detachably arranged on the body part, and the upper limb armoring pieces and the lower limb armoring pieces are detachably connected to upper limb joints and lower limb joints of the limb parts respectively. According to the scheme, the bionic design is adopted, the color adjusting design capable of adjusting the color is adopted for the head, under the condition that the robot interacts with the visitors, namely the visitors touch the fingers, color switching can be conducted, the interaction feeling is high, the bionic design and the aesthetic feeling are better, audiences can be better attracted to watch, and the popularity of science popularization is improved.

The application discloses a kind of biomimetic composite scaffold with periosteum-cortical bone-cancellous bone structure and its preparation method and application.The scaffold is assembled by independent periosteum biomimetic scaffold module and independent bone trunk biomimetic module.The periosteum biomimetic scaffold module is cylindrical tube structure hydrogel, loaded with zinc silicate particles and periosteum related cells, with the biological functions of promoting cartilage differentiation, secreting nerve and vascular factors and synthesizing periosteum matrix proteins.The bone trunk biomimetic scaffold module is cylindrical bioceramic, with multiple vertical pipes embedded in the dense layer of outer wall to simulate cortical bone, and with staggered structure inside to simulate cancellous bone.Animal experiments show that the biomimetic composite scaffold can effectively promote the integrated regeneration of bone trunk and periosteum in rabbit radial critical size defect model.Therefore, the application provides a new solution for the biomimetic design and regeneration repair of bone tissue engineering.

The application discloses a liquid metal reinforced triboelectric material with a biomimetic surface and a preparation method thereof, and belongs to the technical field of triboelectric materials. The liquid metal reinforced triboelectric material is prepared by mixing an interface stabilizer TEMPO oxidized nanocellulose and a liquid metal gallium-indium alloy, obtaining TOCNF@LM liquid metal-based micro-nano droplets, mixing the obtained TOCNF@LM liquid metal-based micro-nano droplets into a water-based polyurethane of a base material, and adopting a template method to construct a biomimetic rose petal micro-papilla structure, so as to obtain the liquid metal reinforced triboelectric material with the biomimetic surface. The composite material with the rose petal micro-nano structure is prepared through biomimetic design, the micro-papilla structure of the rose petal is successfully copied, and the water-based polyurethane is significantly improved in triboelectric performance by using the TOCNF@LM liquid metal-based micro-nano droplets, so that the open-circuit voltage of the prepared composite material reaches 250 V, the short-circuit current reaches 8.19 mu A, and the short-circuit transfer charge reaches 95 nC. The application provides theoretical and practical guidance for the design of high-performance triboelectric materials.

This invention discloses a biomimetic blade, impeller, and fan with a wave-like surface structure. The blade features a continuous wave structure along its chord length. The wave structure includes a first wave structure, a gentler wave structure, and a second wave structure arranged sequentially along the chord length. This invention targets a closed axial flow impeller, employing a wave-like biomimetic design on the blade surface. The wave pattern is primarily concentrated from 50% of the blade height to the blade tip, aiming to reduce noise from the blade tip to 50% of the blade height. During operation, the area with the highest sound pressure level is concentrated above 50% of the blade height to the blade tip, with the highest sound pressure level near the blade tip. The wave-like design at this location effectively improves the area of ​​airflow energy dissipation and accumulation, thereby reducing noise.

The utility model belongs to the technical field of fluid pipelines, and particularly relates to an industrial anti-backflow water supply pipeline based on bionic design. According to the technology, a pipeline body is included, a plurality of supporting structures are fixed to the inner wall of the pipeline body in the circumferential direction, a valve structure is arranged on each supporting structure, and the supporting structures and the valve structures swing in the water flow direction to form a water flow channel under the downstream working condition; under the countercurrent working condition, the supporting structure and the valve structure swing in the water flow direction, so that the edge of the valve structure is tightly attached to seal the water flow channel. Based on bionic design, a rapidly-formed hard material serves as a supporting framework, a soft material valve serves as a flow guide body, the supporting framework and the supporting structure support the valve, the supporting framework and the supporting structure jointly play a role in backflow prevention, meanwhile, the capacity of the water supply pipeline for bearing higher-strength water flow is effectively improved, and the service life of the water supply pipeline is prolonged. And the valve is prevented from being damaged, excessively deformed or integrally crushed in the use process.

The invention discloses a bone-periosteum bionic stent for vascularized bone regeneration and a preparation method of the bone-periosteum bionic stent, and belongs to the technical field of bone repair. The stent comprises a bone bionic stent and a bionic periosteum, the bone bionic scaffold is of a hierarchical pore structure and is formed by compounding polycaprolactone, silk fibroin and beta-tricalcium phosphate through fused deposition 3D printing, and the surface of the bone bionic scaffold is subjected to alkali treatment so as to improve hydrophilicity and osteogenic activity; the bionic periosteum is printed on the surface of the bone bionic scaffold through a near-field direct writing technology and is composed of polycaprolactone, mineralized collagen and magnesium ions, and the mineralized collagen is distributed in the bionic periosteum in a gradient mode. Through integrated bionic design, structures and functions of natural bones and periosteum are simulated; the bone bionic support plays a role in mechanical support and bone formation promotion; the bionic periosteum rapidly releases magnesium ions in the early stage of degradation, and early vascularization is promoted; along with degradation, continuously released collagen induces mineralization of a collagen matrix in the later period; the stent has good cell compatibility and capability of promoting osteogenic differentiation and blood vessel formation.

The invention discloses a bionic pattern block and a tread pattern comprising the bionic pattern block, three identical regular hexagons or long hexagons are arranged in a delta shape to form a closed-contour twenty-edge shape, the bionic pattern block is obtained, the long hexagons are obtained by stretching the long diagonals A of the regular hexagons in the longitudinal direction, and the long diagonals A of the long hexagons are obtained by stretching the long diagonals A of the long hexagons in the longitudinal direction. The long diagonal line A and the opposite side distance B of the hexagons meet the condition that when the hexagons are arranged in a triangular shape, the distance between the upper hexagon and the lower hexagon is C, the distance between the left hexagon and the right hexagon is D, the widths of the C and the D are 0-3mm, and the C and the D are filled into pattern blocks. Coupling bionic design is carried out by extracting the outline structure of the home cat palm pad and the long hexagonal structure of the tree frog palm pad, and a coupling bionic pattern structure is designed on a tire tread pattern, so that the wet friction performance of the tire is effectively improved, the ground pressure uniformity of the tire is optimized, the vibration noise of the tire is reduced, and the service life of the tire is prolonged. And the wet friction performance and the vibration noise performance of the bionic tire are synergistically improved.

This invention relates to the field of environmental microbiology, specifically disclosing an autotrophic denitrifying bacterial agent and its preparation method. This autotrophic denitrifying bacterial agent employs a three-layer biomimetic design: a sulfur-calcium composite core, an inner shell gel layer, and an outer functional layer. Denitrifying Thiobacillus is loaded into the core, and Pseudomonas schlegelii is fixed in the outer layer, with a sodium alginate-xanthan gum gel layer providing physical isolation, achieving spatial partitioning and symbiosis of autotrophic and heterotrophic denitrifying bacterial communities. The sulfur-calcium composite core uses sulfur powder as an electron donor, and hydrophobically modified eggshell powder supplements alkalinity in situ. The inner shell layer incorporates ultrafine calcium carbonate, providing both mechanical reinforcement and pH buffering functions. The outer layer encapsulates sodium acetate-stearate microspheres for slow carbon source release. This autotrophic denitrifying bacterial agent exhibits high denitrification efficiency, pH stability, and strong resistance to hydraulic shearing under low carbon-to-nitrogen ratio conditions. The preparation process is mild, and the raw materials are inexpensive and readily available, making it suitable for deep denitrification in wastewater treatment and other scenarios.

The invention belongs to the technical field of bio-based adhesives, and relates to a soybean protein adhesive and a preparation method thereof. According to the invention, a multi-scale structure of a dragonfly wing is referred, bionic design is taken as a starting point, an MXene-Ag component is adopted to simulate a reinforced venation of the wing and is combined with a soft SPI matrix (simulating an energy dissipation film), strong interface combination is realized through a Schiff base reaction and a hydrogen bond, and 3-carboxyphenylboronic acid is added for further optimization, so that the mechanical property of the wing is improved. A cross-linked network of amido bonds and boric acid ester bonds is formed, and the finally obtained multilevel structure adhesive shows excellent comprehensive properties including excellent toughness, mechanical strength and water resistance, and also has the characteristics of natural antibacterial property, mildew resistance and flame retardance.

The utility model belongs to the field of poultry processing equipment, and particularly relates to a pulse intelligent bionic wax raking machine, which comprises a poultry body conveying line to be subjected to wax raking, a wax raking machine, a wax raking machine and a wax raking machine, the wax raking device is arranged on the two sides of the poultry body conveying line to be subjected to wax raking and comprises a wax raking driving structure and a wax raking rod structure, and the wax raking rod structure is driven by the wax raking driving structure to carry out wax raking treatment on poultry bodies from top to bottom; and the following driving structure is used for driving the wax raking device to reciprocate along the poultry body conveying line to be subjected to wax raking, the following driving structure drives the wax raking device and the poultry body conveying line to be subjected to wax raking to move synchronously during the wax raking action, and after the wax raking action is completed, the following driving structure drives the wax raking device to reset to the initial position. The wax raking action can cover the surface of a poultry body more uniformly, the problem of missing treatment or non-uniform treatment is reduced, the wax raking success rate is increased, mechanical damage to the poultry body to be subjected to wax raking is reduced, and milder, more accurate and more efficient wax raking operation is achieved through bionic design and intelligent following.

The invention relates to the field of mechanical surface engineering and bionic design, in particular to a bionic tooth surface microstructure concrete design method. The method comprises the following steps: acquiring point cloud data of a shell body surface, and constructing a shell body surface three-dimensional model by using the point cloud data; constructing a bionic coupling element matrix by using the shell body surface three-dimensional model; constructing an equal-arc-length parameter sequence and a gray mapping matrix based on the bionic coupling element matrix, and constructing a structural feature matrix by using the equal-arc-length parameter sequence and the gray mapping matrix; and establishing a tooth surface geometric model of the target gear, and mapping the structural feature matrix to a parameter domain of the tooth surface geometric model to obtain initial micro-texture geometric distribution. And constructing a morphological design parameter matrix, and regulating and controlling the initial micro-texture geometric distribution by using the morphological design parameter matrix to obtain a bionic tooth surface micro-texture model. The problem that in the prior art, a quantitative conversion method from biological structure geometric characteristics to engineering tooth surface micro-texture design parameters is lacked is solved.

The invention discloses a method for preparing a regenerated aluminum profile extrusion die with uniform stress distribution, and relates to the field of regenerated aluminum profile extrusion dies, the method comprises the following steps: S1, base material preparation: mixing 92-94% of W6Mo5Cr4V2 high-speed steel, 5-7% of Cu-Ni alloy, 0.5-1% of rare earth element Ce and 0.5-1% of carbide WC according to the mass ratio, S2, gradient heat treatment: sequentially preheating, quenching and tempering a base material blank; s3, bionic design and processing of a mold cavity: designing the mold cavity by adopting a bionic honeycomb structure according to the sectional dimension of the regenerated aluminum profile, accurately controlling the temperature, the heating rate and the heat preservation time of each stage by setting a gradient heat treatment process of two-stage preheating, rapid quenching and three-time tempering, and accurately cooling by adopting high-purity nitrogen, so that the mold cavity is formed; the effects of eliminating the residual stress in the base material and optimizing the structure uniformity are achieved, and internal stress accumulation caused by the imperfect heat treatment process is avoided.

The invention discloses a bionic rope-driven forearm device of a robot, which belongs to the technical field of robots and structurally comprises a forearm framework, a nut telescopic rod, a roller, a gear ring, a cylindrical pin, a steel wire baffle ring, a retainer, a miniature speed-reducing screw rod motor, an adapter cover, a joint motor, a motor mounting seat and a pull rope. According to the bionic rope-driven forearm device of the robot, the bionic design principle is adopted, according to the actual tendon trend in the forearm of the human hand, a forearm skeleton structure basically consistent in trend is manufactured through 3D printing by adopting a self-lubricating high-strength low-density composite material, a pull rope is used for replacing tendons, and 24 micro speed reduction lead screw motors are used for driving; 24 active degrees of freedom are controlled by sequentially pulling a pull rope through a roller and a nut telescopic rod, functional replacement of tendons in the forearm of the human hand is achieved, a joint motor is connected to the rear end to control rotation of the forearm, and the robot has the beneficial effects that bionic design and complex mechanism self-lubricating integrated 3D printing are adopted, installation is easy, the comprehensive cost is low, the mass is light, and the robot is suitable for large-scale popularization and application. Multiple degrees of freedom can be controlled at the same time, and the requirements for force, stroke and speed under different actions are met.

The application discloses a kind of liquid management and spontaneous power generation dual bionic wound dressing and preparation method and application.The dual bionic wound dressing includes first electrode layer, barrier layer, hygroscopic power generation layer, diffusion antibacterial layer, evaporation power generation layer and second electrode layer stacked in order from bottom to top;The application adopts high biocompatibility electrostatic spinning fiber membrane, realizes the triple function of wound antibacterial, seepage efficient management and stable power generation by combining the liquid transport mechanism of plant transpiration with the ion active transport principle of electric ray power generation cell through bionic design, regulates wound microenvironment, effectively avoids excessive inflammation caused by seepage accumulation, significantly promotes fibroblast migration, angiogenesis and skin appendage regeneration, accelerates wound healing, and is beneficial to restore skin function, provides a new treatment for burn wound repair.