129 results about "Biomimetic design" patented technology

The invention belongs to the field of bionic product design, and discloses a ceramic product bionic design method and system, electronic equipment and a storage medium, and the method comprises the steps: collecting a target plant image, and carrying out the adversarial training through an SA-StyleGAN2 model to generate a high-quality bionic sketch; converting the high-quality bionic sketch into a bionic rendering graph by using a stable diffusion model; performing feature learning on the bionic rendering graph by using a deep convolutional neural network to obtain an optimized bionic rendering graph; calculating and optimizing the similarity scores of the bionic rendering graph and the target plant as the first N design patterns; the first N design patterns are subjected to subjective and objective collaborative evaluation in combination with eye movement tracking data and an entropy weight evaluation method so as to determine a final optimal scheme, and the eye movement tracking data are obtained by obtaining user fixation hotspot distribution data through an eye movement experiment. According to the method, the problem of insufficient originality caused by low bionic design efficiency, insufficient bionic feature control and inaccurate user demand response of the existing ceramic product can be solved.

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 self-adaptive bionic cancellous bone defect prosthesis and a design method thereof, and belongs to the technical field of medical prostheses, the prosthesis is composed of biological interface gradient microporous structure parts and a main body bionic truss supporting structure part, the biological interface gradient microporous structure parts are arranged at the two ends of the main body bionic truss supporting structure part, and the main body bionic truss supporting structure part is arranged on the main body bionic truss supporting structure part. The method is mainly used for reconstructing bone defects, bionically designing a truss part of a main body with consistent arrangement direction and form of human body bone trabecula through an established linear relation between CT gray value and bone density-elasticity modulus, adaptively matching mechanical conduction of a bone structure, reducing stress shielding effect, and improving bone defect reconstruction efficiency. Meanwhile, various complex mechanical working condition requirements of the prosthesis are met, the prosthesis failure risk is reduced, and the service life of the prosthesis is prolonged.

The present invention discloses a design method and system for a pumping station heat dissipation system based on the Bio-TRIZ bionic theory. First, the improvement energy and conflicts existing in the pumping station heat dissipation structure are determined, a conflict matrix is established, and the Bio-TRIZ specific solution is determined. At the same time, in combination with the Bio-TRIZ biological example library, the biological specific solution corresponding to the Bio-TRIZ specific solution is matched, and relevant biological specific solutions are found through the biological example library to support this bionic design. Then, verification is carried out from aspects such as similar functions, similar structures, and similar boundary conditions, and the biological example with the highest bionic value is selected. Finally, the biological specific solution is analyzed, modeled by using the method of geometric feature reconstruction, and the bionic model is applied to the optimization of the pumping station heat dissipation device to improve the heat dissipation efficiency of the pumping station.

The present invention discloses a memristor pulse neural network system and method, which belongs to the field of artificial intelligence technology. The memristor pulse neural network system provided by the present invention uses a bionic design concept to accurately simulate the synaptic structure of a biological neural network by connecting pairs of memristors of the same level in series; based on the positive and negative Hebbian plasticity rules, an adaptive learning mechanism is implemented to strengthen the computing function of the memristor's storage and computing performance; a cascaded scalable control architecture combining master control and slave control is adopted to give the system a high degree of scalability. According to the needs of specific tasks, users can flexibly adjust the scale of the neural network to achieve unlimited cascade expansion, thereby easily coping with various complex scenarios. In addition, the built-in ADC acquisition module provides a real-time feedback mechanism, which can improve the accuracy of system monitoring, speed up the response speed, and provide valuable data support for system optimization and adjustment.

The invention discloses a vibration reduction bionic boring bar based on hedgehog thorns and biological eggshells, and relates to the technical field of boring bars, the vibration reduction bionic boring bar comprises a boring bar body, a cavity is formed in the boring bar body, the bionic eggshells which are transversely distributed at equal intervals are fixed in the cavity, and longitudinal reinforcing ribs are fixed in the bionic eggshells; the first transverse reinforcing rib, the second transverse reinforcing rib, the third transverse reinforcing rib and the longitudinal reinforcing rib which are designed based on hedgehog thorn bionics are fixed in the boring bar body, so that buckling and damage of the boring bar body are delayed, and the boring bar has an excellent external force resisting effect; the bionic eggshell which is designed in a bionic mode based on the thin shell structure of the biological eggshell is fixed in the boring rod body, so that stress distribution in the boring rod body is more uniform, the stress concentration effect is smaller, the mechanical efficiency is improved, and compared with an existing common solid boring rod, the effects of improving rigidity and reducing vibration are achieved; the vibration problem of the boring rod can be effectively solved, and the boring machining precision and machining efficiency are guaranteed.

The invention relates to a bionic water turbine blade and a three-dimensional structure thereof, which are suitable for an efficient hydroelectric generating set. According to the blade, the hydrodynamic performance is optimized through the outer ridges and the inner ridges which are evenly distributed on the outer contour and the inner contour respectively, the five outer ridges refer to geometric arrangement of fish scales, the stability of a boundary layer is improved, and fluid separation is reduced; the three inner ridges imitate a wing middle shaft framework, and the fluid guiding efficiency is enhanced. The overall shape of the blade simulates the curved surface of a fin, and microstructure bionic optimization is carried out on the surface to reduce water flow resistance and enhance self-cleaning capacity. The blade is made of a high-strength corrosion-resistant alloy material, and a waterproof coating is added on the surface of the blade to adapt to a complex underwater environment. According to the bionic design, the energy capture efficiency, the structural strength and the environmental adaptability of the water turbine are remarkably improved. And by adjusting geometric parameters of the blade and the distribution density of the ridges, different hydroelectric generation working conditions are adapted, and the wide and practical application value is achieved.

The invention belongs to the technical field of chemical separation, and relates to a bionic on-demand emulsion separation membrane which is formed by compounding a normal beetle wettability fiber layer and an anti-beetle wettability fiber layer, and the two layers form a stable laminated structure through mechanical entanglement of fibers, the thickness of the normal beetle wettability fiber layer and the thickness of the anti-beetle wettability fiber layer are both 0.2-500 micrometers, and the thickness ratio of the normal beetle wettability fiber layer to the anti-beetle wettability fiber layer is 1: 0.2-5. The invention also discloses a preparation method of the bionic on-demand emulsion separation membrane. According to the invention, bionic design and asymmetric wettability technology are utilized to realize high-efficiency treatment of oil-containing wastewater. The method has the advantages that the separation effect is improved by a bionic synergistic demulsification mechanism; multiple types of emulsions are efficiently separated, energy consumption is low, and external stimulation is not needed; the bionic synergistic demulsification mechanism based on positive beetle wettability and anti-beetle wettability is achieved, the separation effect is remarkably improved, the advantage of performance integration is achieved, and efficient on-demand separation of water-in-oil emulsion and oil-in-water emulsion through a single membrane material is achieved.

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 present invention discloses a fruit picking robot based on bionic design, including a mobile mechanism and a sensor module, a control module, a rope driving mechanism, a bionic grasping manipulator and a shearing unit arranged on the mobile mechanism; the sensor module is used to collect feedback information, and the control module is used to control the mobile mechanism, the bionic grasping manipulator and the shearing unit according to the feedback information; the bionic grasping manipulator includes a base and a mechanical finger, a soft sac-shaped pad is arranged on the base, a plurality of the mechanical fingers are arranged on the base and surround the soft sac-shaped pad, and a plurality of uniformly distributed suction cups are arranged on one side of the mechanical finger close to the soft sac-shaped pad. Correspondingly, the present invention also discloses a picking control method related to the above-mentioned fruit picking robot. By adopting the present invention, the fruit picking and clamping is stable and reliable, and the fruit particles can be prevented from falling easily, and the structure is compact, the transmission efficiency is higher, and the environmental adaptability is stronger.

The invention provides a bamboo joint type umbrella-shaped building structure which comprises a stand column formed by a plurality of supporting rods in a surrounding mode, the stand column can be fixed to a lower body structure or a basic position, and each supporting rod is formed by splicing a plurality of bamboo joint modules; the branch columns are fixed to the stand column and arranged in a radial divergence mode with the stand column as the center to form an umbrella-shaped structure, each branch column is formed by splicing a plurality of bamboo joint modules, a grid is formed between every two adjacent branch columns through reinforcing ribs, and a skylight is arranged in each grid; wherein each bamboo joint module can be independently disassembled and assembled, each bamboo joint module comprises at least one bamboo joint, and splicing joints of every two adjacent bamboo joint modules are connected through mortise and tenon joints or bonded through biological glue. The bamboo joint bionic design is achieved through sectional type bamboo joint module splicing, combination of light weight and high strength is achieved, meanwhile, the mortise and tenon joint or biological glue bonding technology is adopted at the splicing joints, metal connecting pieces are reduced, and integrity is improved.

The invention discloses a preparation method of self-assembled lignin / copper ion nanoparticles reinforced polyvinyl alcohol film. First, an alkaline solution of alkali lignin and an alkaline solution of Cu(NO3)2 are mixed and heated for reaction, and an LNP@Cu suspension is obtained after dialysis; then the LNP@Cu suspension and a PVA solution are heated and stirred and mixed evenly to obtain a film-forming solution, and the film-forming solution is cast and dried to obtain a modified PVA film material. The present application provides a simple bionic design strategy, adding LNP@Cu as granular nano-domains into the PVA film to improve the mechanical properties of the PVA plastic film. The polar groups on the surface of LNP@Cu can form abundant hydrogen bonds with the PVA matrix. The present application provides a simple, feasible, green and sustainable method for producing multifunctional environmentally friendly materials, and is beneficial to promoting the high-value utilization of lignin.

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.

The invention discloses a double-bionic wound dressing with seepage management and self-power generation functions as well as a preparation method and application of the double-bionic wound dressing. The double-bionic wound dressing comprises a first electrode layer, a blocking layer, a moisture absorption power generation layer, a diffusion antibacterial layer, an evaporation power generation layer and a second electrode layer which are sequentially stacked from bottom to top. The electrostatic spinning fiber membrane with high biocompatibility is adopted, a liquid transport mechanism of plant transpiration and an ion active transport principle of electric ray power generation cells are combined through bionic design, the triple functions of wound surface antibiosis, efficient seepage management and stable power generation are achieved, the wound surface microenvironment is regulated and controlled, and the wound surface antibacterial effect is achieved. Excessive inflammation caused by seepage accumulation is effectively avoided, fibroblast migration, angiogenesis and skin appendage regeneration are remarkably promoted, wound healing is accelerated, skin function recovery is facilitated, and a new treatment mode is provided for burn wound repair.

A bionic bird-catching spider based on the coupling of degrees of freedom, with four bionic front legs connected to the head of the bionic torso; four bionic hind legs connected to the chest of the bionic torso; a bionic chelicera also provided at the very front end of the bionic torso A; a bionic spinneret provided at the rear end of the bionic torso A; the bionic torso is arranged in a quasi-elliptical shape, mimicking the real overall appearance of the wild tiger-striped bird-catching spider; the bionic walking legs are divided into a bionic hind leg of a crank-rocking block linkage eight-bar mechanism and a bionic front leg of a worm gear and worm linkage anti-quadrilateral, respectively using different bionic design principles to achieve the corresponding bionic target design requirements; the bionic chelicera adopts an independently designed electromagnetic transient control dead point four-bar mechanism to complete the predation action reliably and quickly; the liquid emission module is controlled by air pressure and can adjust the spraying angle in the vertical direction to increase its liquid emission range.

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.

A self-adaptive bionic cancellous bone defect prosthesis and a design method thereof belong to the technical field of medical prostheses. The prosthesis consists of a bio-interface gradient microporous structure portion and a main bionic truss support structure portion. The bio-interface gradient microporous structure portion is arranged at both ends of the main bionic truss support structure portion and is mainly used to reconstruct bone defects. Through the established linear relationship between CT grayscale value and bone density-elastic modulus, the main truss portion is bionicly designed with the same arrangement direction and morphology as human trabeculae, adaptively matching the mechanical conduction of the bone structure, reducing the stress shielding effect, and simultaneously matching the prosthesis's various complex mechanical working conditions, reducing the risk of prosthesis failure, and extending the prosthesis's service life.

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 present invention discloses a three-dimensional biomimetic design method based on a generative adversarial network. The method comprises the following steps: Step 1: Establishing a training set; Step 2: Establishing a deep generative model and training the deep generative model using the training set; the deep generative model comprises an implicit autoencoder (3DCNN) and a latent vector generative model; the implicit autoencoder comprises an encoder (3DCNN) and a decoder (IM-Decoder); the latent vector generative model employs a generative adversarial network; and Step 3: Using the deep generative model to generate a three-dimensional biomimetic object. The present invention also discloses a system for implementing the above method, comprising a data preprocessing module, a deep generative model, a sample vector repository, and a post-processing module.

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 invention provides a side chain type liquid crystal elastomer bionic actuator as well as a preparation method and application thereof, and belongs to the field of liquid crystal elastomer actuators. The bionic actuator is constructed by cooperating with the vertical orientation of azobenzene mesocrystal on the microscopic level and the structure bionic design on the macroscopic level of a single domain side chain type azobenzene liquid crystal elastomer SC-AZO-LCEs strip. According to the invention, a series of SC-AZO-LCEs with adjustable liquid crystal phase transition temperature are prepared by grafting two azobenzene monomers with different terminal groups on a polybutadiene PB section, and a glassy PS phase locked single domain band is obtained through mold coating and casting and mechanical stretching treatment and has excellent remoldability and recoverability; and then bionic design is carried out by simulating a unique double-layer orthogonal fiber structure of the pod to construct the double-layer bionic actuator. The large-amplitude and multi-form actuating behavior of thermal response is achieved, application of different scenes such as a soft robot, a bionic flower and an underwater gripper is created, and a new thought and method are provided for developing an intelligent flexible actuator in the future.