252 results about "Viscoelasticity" patented technology

The invention belongs to the technical field of industrial automation control, and particularly relates to a dynamic optimization control method and system for multi-component batching of a paste making machine, and the method comprises the steps: generating a characteristic waveform spectrum corresponding to a residue molecular structure; dynamically generating electric lubricating medium parameters containing the electroosmotic liquid concentration and the release rate; triggering a low-frequency vibration module of the material layer to generate vibration waves, and enabling the solution and the vibration waves to form a molecular-level synergistic stripping effect; calculating a nanoparticle dispersity index, and generating an inverse gradient mixing instruction when the index exceeds a threshold value; activating a hot vortex ring in a spiral flow guide convex pattern area and establishing a directional heat energy migration channel; and verifying the dynamic equilibrium state of the temperature of the paste core area and the viscoelasticity of the target formula, and triggering a phase lock control signal to terminate the parameter adjustment chain when the energy consumption rate reaches a stable interval. According to the invention, the problems that the transition period during formula switching is prolonged and the phase differences among the execution mechanisms are difficult to match in real time due to a traditional staged regulation and control mode are solved.

The invention discloses a dynamic optimization method and device for an automatic fiber placement path of a composite material and a medium, and belongs to the technical field of automatic fiber placement of composite materials. The method comprises the steps that a three-dimensional model of a component to be laid is obtained, and curved surface curvature distribution characteristics and fiber laying angle constraints are obtained based on the three-dimensional model; processing the curved surface curvature distribution characteristics based on a path planning algorithm to generate an initial fiber placement path; on the basis of the tension mapping table and the temperature compensation coefficient, the fiber placement head is driven to execute reverse pre-tension control; acquiring actual fiber trend data according to a preset sampling period based on a polarization laser polarization instrument, and extracting a fiber angle deviation of the actual fiber trend data; processing the fiber angle deviation and the resin viscoelasticity data based on a Bayesian optimization algorithm so as to dynamically correct the laying path and generate an updating instruction; and adjusting the spatial pose and tension of the fiber placement head according to the updating instruction. Based on the method, dynamic multi-target fiber placement path optimization and real-time feedback control are realized.

The invention relates to the technical field of route planning, in particular to an underground cavern inspection method and system. The method comprises the following steps: acquiring geological survey data, micro-seismic monitoring data and historical deformation monitoring data; according to the geological survey data and the micro-seismic monitoring data, rock mass viscoelasticity local modeling is carried out, and a rock mass viscoelasticity model is obtained; performing deformation trend prediction according to the rock mass viscoelastic model and the historical deformation monitoring data to obtain deformation trend data; performing deformation disturbance resonance analysis according to the deformation trend data and the micro-seismic monitoring data to obtain deformation disturbance resonance data; performing risk area grading on the deformation disturbance resonance data to obtain risk area grading data; and generating a routing inspection graph according to the risk area grading data to obtain routing inspection graph data so as to carry out underground cavern routing inspection auxiliary operation. The method accurately identifies the potential risk area, dynamically plans the inspection task, and improves the inspection efficiency and decision timeliness.

The invention relates to the technical field of asphalt mixtures, and particularly discloses an asphalt regenerant and a preparation method thereof. The asphalt regenerant comprises the following raw materials in parts by weight: 40-60 parts of base oil, 10-15 parts of a styrene-butadiene-styrene block copolymer, 10-15 parts of microwave activated rubber powder, 5-8 parts of an antioxidant, 10-20 parts of a penetration enhancer and 3-8 parts of a stabilizer, the base oil is at least one of bio-oil and vegetable oil; the bio-oil and the vegetable oil are used for improving the flowability of the regenerant, the regenerant can better permeate into a microporous structure of aged asphalt, and the styrene-butadiene-styrene block copolymer and the microwave activated rubber powder are combined, so that the viscoelasticity and the deformation resistance of the asphalt can be improved; the recovery capability of the regenerant on asphalt with different aging degrees is improved.

The invention relates to the technical field of medical elastography and material multi-scale mechanical measurement, in particular to an elastography method and system based on an instantaneous scattering displacement field, and the method comprises the steps: driving a passive / active method scattering displacement field excitation device through a frequency domain controllable sine wave signal, and generating a scattering displacement field on a target material, an instantaneous displacement field is obtained through high spatial resolution measurement, then sliding window local interception, two-dimensional autocorrelation calculation and nonlinear fitting based on the Rayleigh / shear wave spatial autocorrelation theory are performed on the single-frame instantaneous displacement field, shear wave velocity distribution is obtained, and then the viscoelasticity modulus of a target area is inverted to achieve comprehensive characterization of the viscoelasticity of the material. According to the scheme, the single-frame scattering displacement field is excited and collected, and the elasticity inversion is performed based on the instantaneous displacement field, so that the dependence of traditional elasticity imaging on high-frame-rate equipment is broken through, the material viscoelasticity evaluation can be efficiently completed at low cost, and the application prospect in the fields of clinical diagnosis and mechanical measurement is wide.

The invention relates to the technical field of computers, and discloses a rock creep model construction method and device and a rock failure mode determination method. The method comprises the steps of obtaining a data set; samples in the data set comprise input data and output data, the input data comprise creep load holding time, sample rock stress data, initial macroscopic damage data, initial microscopic damage data, long-term strength and a creep starting threshold value, and the output data is a strain true value; fitting the initial rock creep model by using the data set to obtain a final rock creep model; wherein the initial rock creep model comprises at least one of a damaged elastomer strain item, a damaged viscoelastomer strain item and a damaged viscoplastic body strain item; each strain item comprises a macro-micro nonlinear coupling damage item, and the macro-micro nonlinear coupling damage item is generated based on the initial micro damage data and the initial macro damage data. The model constructed by the method can truly reflect the nonlinear mechanical response of the rock mass under the combined action of the multi-scale initial defects.

The invention discloses a non-linear vibration detection device for a high-speed rotating viscoelastic plate, and belongs to the field of detection equipment, the non-linear vibration detection device comprises a supporting seat, an anti-vibration pad is fixedly connected to the outer surface of the upper end of the supporting seat, a supporting plate is fixedly connected to the outer surface of the upper end of the anti-vibration pad, and a control component is arranged on the upper side of the supporting seat. The control component comprises a connecting plate fixedly connected with the inner surface of the supporting plate, an adjusting rod is in threaded connection with the middle of the outer surface of the connecting plate, and a through groove is formed in the upper side of the outer surface of the adjusting rod. By arranging the control component, enabling the viscoelastic plate to rotate at the same speed and detecting and analyzing the nonlinear vibration parameters of the viscoelastic plate, an experimenter can conveniently carry out a control experiment, so that the influence of motor vibration on the vibration parameters of the viscoelastic plate can be better analyzed; and the vibration characteristics of the viscoelastic plate can be further compared, analyzed and researched, so that the detection error can be reduced to a certain extent.

The invention provides a touch force feedback simulation method and system based on a pressure deformation signal, and relates to the technical field of touch interaction and tactile feedback, and the method comprises a data collection process: configuring a sensor to collect the physical state of a touch interface, and obtaining an instantaneous pressure and deformation signal; the impedance compensation process comprises the following steps: step 1, acquiring an instantaneous signal; 2, constructing a dynamic hysteresis loop model; step 3, calculating a viscosity energy loss value; 4, generating an energy compensation waveform; 5, an actuator is driven to generate reverse damping vibration; according to the method, the material viscosity loss is quantified through the physical phase space model, reverse energy is accurately injected, and the problems of touch hysteresis and soft collapse caused by viscoelasticity of a touch interface are effectively solved.

The invention relates to the field of building materials, and discloses high-toughness and high-energy-absorption polymer emulsion modified mortar and a preparation method thereof, and the mortar is composed of ordinary Portland cement, river sand, a polymer emulsion, water, an active admixture and chopped fibers. Wherein the polymer emulsion is selected from styrene-acrylic emulsion (SBR), ethylene-vinyl acetate (EVA), polyurethane emulsion or a combination thereof; the mixing amount is 5-20wt% of the mass of the cementing material. According to the invention, a viscoelastic network is formed in a cement matrix through the polymer emulsion, and the synergistic effect of the active admixture and the chopped fibers is combined, so that the bonding strength, the crack resistance, the impact resistance and the stress wave dissipation capability of the mortar are remarkably improved. Test results show that the mortar provided by the invention is obviously superior to ordinary mortar in the aspects of 28d breaking strength, impact toughness and stress wave attenuation performance, and is suitable for high-performance constructional engineering and protective engineering.

The utility model relates to an enlarged type metal composite viscoelastic damper. The bottom of a metal damper is fixedly connected with an enlarged type viscoelastic damper. The metal damper comprises a T-shaped core plate, L-shaped restraining plates are fixedly connected to the two opposite sides of the T-shaped core plate in the vertical direction, friction areas are arranged between the tops, located on the vertical plane, of the L-shaped restraining plates and the T-shaped core plate, fixing areas are arranged between the bottoms of the L-shaped restraining plates and the T-shaped core plate, and energy dissipation webs are arranged on the portions, between the fixing areas and the friction areas, of the T-shaped core plate. The amplified viscoelastic damper comprises an upper connecting plate, an amplifying lever is hinged to the lower portion of the upper connecting plate, an inner steel plate is hinged to the lower portion of the amplifying lever, the inner steel plate is connected with an outer steel plate through a viscoelastic layer, and the outer steel plate is hinged to the amplifying lever through a fulcrum shaft. The defects of a metal damper can be overcome under small earthquakes, good energy consumption is achieved, the amplifying damper can be protected against excessive displacement and failure under large earthquakes, the damper consumes energy in a multi-stage mode, and the anti-seismic performance of the structure is improved. The components are connected through bolts, are highly assembled and are convenient to replace.

The invention relates to the technical field of general control or regulation systems, and discloses a stirring torque self-adaptive cooperative control method for rheological characteristics of high-solid-content slurry, and the method comprises the steps: obtaining a feedback rotating speed signal and a torque current signal, and resolving the real-time angular momentum of a stirring system; extracting a phase deviation angle of the torque current signal relative to the feedback rotating speed signal to calculate a viscoelasticity characterization value, and correcting a virtual damping parameter of a speed control ring according to the viscoelasticity characterization value; a control error phase track is constructed in a phase plane of the controller, and the local curvature of the control error phase track is monitored, so that the rheological property sudden change state of the high-solid-content slurry is judged; according to the method, control instability caused by non-Newtonian fluid viscoelasticity lag is eliminated through phase domain closed-loop adjustment and phase trajectory singular point pre-judgment, and the operation stability of a driving motor under the extremely high damping working condition is guaranteed.

The multi-stage shock isolation and absorption device comprises a base, and the bottom of the base is connected with a rest platform picking-out plate; the connecting seat is arranged on the upper portion of the base, and the lower surface of the connecting seat is connected with the upper surface of the base through a friction pendulum energy dissipation mechanism; the elastic connecting piece is arranged between the base and the connecting seat; a shearing groove is formed in the upper portion of the connecting base, a box type shearing structure is arranged in the shearing groove, the upper portion of the box type shearing structure is open, and a vertical vibration isolation unit is arranged in a box body of the box type shearing structure; the left side and the right side of a box body of the box-type shearing structure extend to be provided with wing-shaped pressure-bearing steel plates, and the upper surface and the lower surface of a shearing energy dissipation plate are fixedly connected with the inner wall of a shearing groove of the connecting base through viscoelastic energy dissipation material layers correspondingly. Two energy dissipation modes of viscoelasticity and a friction pendulum energy dissipation mechanism are combined, and energy can be effectively dissipated under different earthquake intensities according to damage characteristics of stairs during earthquake.

The invention discloses a simulation method and system for incompressible viscoelastic plasticity, which are used for simulating the large deformation behavior of a viscoelastic plastic material, and by decomposing the material attribute into viscosity and elastic plasticity, extracting rotation from the deformation gradient, and using a fixed smooth length, particles may become unconstrained and are irregularly ejected. By utilizing a novel non-iterative algorithm to adjust the smooth length and combining with the artificial viscous force, particle dispersion can be corrected, artifacts caused by serious non-physical oscillation can be avoided, compared with an existing model, the method can provide a rapid and stable solution for various solid and fluid mechanical behaviors, and the method is suitable for large-scale popularization and application. Comprehensive experiments are carried out on various mechanical energy behaviors, and multifunctionality and effectiveness are shown.

The invention provides a high-viscoelasticity low-noise friction material, a brake pad and a preparation method of the high-viscoelasticity low-noise friction material. The high-viscoelasticity low-noise friction material is prepared from the following raw materials in parts by weight: 7 to 12 parts of organic binder, 10 to 25 parts of reinforcing material fiber, 10 to 20 parts of friction performance regulator, 15 to 25 parts of anti-wear lubricant, 4 to 10 parts of elastic toughening agent, 8 to 18 parts of friction increasing agent, 6 to 10 parts of porous material and 20 to 30 parts of space filler. A brake pad produced by the high-viscoelasticity low-noise friction material has the characteristics of high damping, low noise, high strength, high temperature resistance, wear resistance and the like, is comfortable to brake in the use process, is free of noise and long in service life, and meets the requirements of customers.

The invention discloses a displacement amplification damper applied to a power transmission line. The displacement amplification damper comprises a guide device, a viscoelastic energy consumption device, a steel pipe torsion yield energy consumption device and a rotating plate. The guiding device is connected with the steel pipe torsion yield energy dissipation device, and the steel pipe torsion yield energy dissipation device is connected with the viscoelastic energy dissipation device through a rotating plate. The guiding device comprises a main supporting shaft rod and an auxiliary supporting shaft rod which are connected with the power transmission tower and hinged to the rotating plate through a mounting plate and a lug plate. The viscoelastic energy dissipation device comprises a constraint end plate, a constraint steel pipe, a pin shaft, a fan blade type rotating shaft and a viscoelastic energy dissipation rubber rod, and the viscoelastic energy dissipation rubber rod is clamped with a groove of the fan blade type rotating shaft to dissipate energy. The steel pipe torsion yield energy dissipation device comprises an external steel pipe, a stiffening plate and a stiffening steel pipe, and energy is further dissipated through torsion yield. Through displacement amplification and multiple energy consumption mechanisms, the power transmission line is effectively protected from being affected by vibration, and the safety and stability of the power transmission line are improved.

The invention discloses flexible infrared transparent chalcogenide glass and application thereof as a deformable lens, the chalcogenide glass comprises a main element and an optional element, the main element is an S element, the optional element is at least one of Se, Te, Ge, As, Ga and I, the molar percentage content of the elements is as follows: S is greater than 50% mol, Se is less than 50% mol, Te is less than 30% mol, Ge is less than 10% mol, As is less than 10% mol, Ga is less than 10% mol, and I is less than 10% mol. The total amount of optional elements is less than 20% mol, the microstructure of the chalcogenide glass has a sulfur-rich glass network, and the sulfur-rich glass network is rich in a S8-xMx eight-membered ring structure which is composed of chalcogenide elements and contains 8 atoms. The chalcogenide glass has the advantages of good glass forming ability, outstanding flexibility and viscoelasticity, infrared transparency and high refractive index, and the prepared deformable lens can realize large-range adjustability of focal length and effective correction of aberration, and can be used in middle and far infrared deformation imaging systems.

The invention belongs to the technical field of amorphous alloy dynamic relaxation behavior modeling, and particularly relates to a method for predicting defect concentration of amorphous alloy through dynamic relaxation analysis. A fractional order viscoelastic model is adopted to simulate the dynamic relaxation behavior of the amorphous alloy, model parameters are few, and the defect concentration evolution of the amorphous alloy in the dynamic relaxation process can be reflected; the established fractional order viscoelastic model can be verified through a dynamic relaxation experiment, and the evolution of defect concentration is obtained by fitting the experiment. According to the method, multiple key parameters such as the high-frequency shear modulus, the low-frequency shear modulus and the relaxation time are comprehensively utilized, and quantitative analysis of the complex interaction between the microstructure and the macroscopic performance of the material is achieved. The verification method not only proves the reliability of the model, but also can quantitatively calculate the evolution of the defect concentration. The application of the technology in alloy design and preparation stages provides a new theoretical guidance and experimental method for prediction and evaluation of amorphous alloy performance.

The present invention discloses a salt-tolerant nano-particle stabilized foam flooding system, which is composed of the following raw materials in parts by weight: 0.3 - 0.5 parts of an asymmetric hydrophilic group anionic gemini surfactant, 0.05 - 0.2 parts of an inorganic potassium salt, 0.05 - 0.15 parts of a foam stabilizer, and 100 parts of water; meanwhile, the present invention also discloses a preparation method of the flooding system. The flooding system provided by the present invention can be applicable to the reservoir formation water environment with a calcium ion content as high as 20000 mg / L, shows certain viscoelasticity, is beneficial to improving the foam stability; has a low interfacial tension and has a good oil washing effect; has a high foam half-life and a high foam comprehensive index, belongs to a strong foam system, and has excellent foaming performance and foam stabilizing performance.

The invention discloses a method for determining the pile top rigidity of a horizontal load-bearing friction type pipe pile, which comprises the following steps of: adopting a theoretical method, regarding a soil body around the pile as a viscoelastic continuous medium, and deducing a pile top rigidity expression of the horizontal load-bearing friction type pipe pile by using an analytical method based on a proposed friction type pipe pile theoretical model under the horizontal load; the method has strict logicality; meanwhile, the influence of pile periphery soil mass resistance and pile core soil mass resistance on the pipe pile is considered, and the method is more practical; according to the method, related parameters are substituted for calculation, the image drawn according to the obtained result can accurately describe the condition of the horizontal pile top rigidity of the friction type pipe pile under the horizontal load effect, the method is efficient, simple and convenient, the calculation result is specific and clear, and good reference can be provided for actual application of the friction type pipe pile in the pile foundation field.

The invention discloses a functionally gradient perfluoroether rubber material as well as a preparation method and application thereof. The functional gradient perfluoroether rubber material comprises a contact layer, a transition layer and a supporting layer which are tightly connected in sequence, wherein the contact layer is prepared from raw materials including raw perfluoroether rubber, a filling agent, a vulcanizing agent and a plasticizer; the transition layer is prepared from raw materials including raw perfluoroether rubber, a filling agent and a vulcanizing agent; the supporting layer is prepared from raw materials including raw perfluoroether rubber, a filling agent and a vulcanizing agent; the Shore A hardness of the contact layer is smaller than or equal to the Shore A hardness of the transition layer and smaller than or equal to the Shore A hardness of the supporting layer. Through component gradient design and process regulation and control, continuous gradient distribution of mechanical properties such as hardness and viscoelasticity of the material in space is realized, so that the problem of contradiction between the sealing performance of the elastic membrane of the medical micro-flow electromagnetic valve and the pipetting precision is solved.

This invention belongs to the field of data processing technology, specifically relating to a method and system for generating maintenance strategies for bridge collision avoidance facilities based on knowledge graphs. The method includes: constructing a physical topology map of the collision avoidance facilities, obtaining the stiffness weights of connecting edges and initializing node parameters; collecting strain and stress data sequences of the collision avoidance units, and calculating the rheological damage index of the collision avoidance units using a dynamic time warping algorithm; constructing a force transmission probability matrix, and obtaining the comprehensive structural risk value of the collision avoidance units through iterative calculation; and calculating the maintenance urgency index by combining the position weight coefficients and service duration of the collision avoidance units to generate a dynamic maintenance strategy. This invention, by constructing a physical topology map reflecting the physical connection relationships between collision avoidance units, and combining the calculation of hysteresis energy consumption and stress transmission deduction of viscoelastic materials, can accurately identify latent transmitted damage and assess the degree of material rheological aging, thus achieving intelligent maintenance of bridge collision avoidance facilities.

The invention discloses a method for testing the fatigue healing performance of graphene / rubber composite modified asphalt. The method comprises the following steps: 1, preparing a graphene / rubber composite modified asphalt material; 2, carrying out a continuous LAS test and drawing a damage characteristic curve; 3, drawing a stress-strain curve graph, and calculating a damage variable and a strain value corresponding to a fatigue damage point; 4, carrying out a standard LAS test for the first time; and 5, carrying out a second standard LAS test on the graphene / rubber composite modified asphalt after standing to obtain the influence trend of the temperature on the graphene / rubber composite modified asphalt. According to the method, the fatigue damage tolerance of the graphene / rubber composite modified asphalt is evaluated through LASH, the fatigue damage recovery degree of the asphalt under the specific relaxation unloading condition is explored, then the self-healing performance of the asphalt is quantitatively evaluated, and the method eliminates the influence of the viscoelastic property of the material on the fatigue performance based on the elastic-viscoelastic correspondence criterion of pseudo strain.

The invention belongs to the technical field of restrained braces, and particularly relates to a viscoelastic double-step all-steel buckling restrained brace which comprises an outer sleeve, two viscoelastic devices, a core plate and a limiting structure, the outer sleeve, the two viscoelastic devices and the core plate are arranged, and the two viscoelastic devices are embedded in the inner side and the outer side of the two ends of the outer sleeve respectively; the viscoelastic material can absorb and dissipate energy generated by earthquakes or wind loads through shear deformation, the vibration response of a structure body is effectively reduced, the anti-seismic performance of a building is improved, the core plate movably penetrates through the viscoelastic device and is arranged in the outer sleeve, the core plate is preliminarily restrained through the outer sleeve, and the anti-seismic performance of the building is improved. According to the limiting structure, the side plates and the multiple limiting plates are matched to limit the core plate, lateral displacement of the core plate can be limited, bending instability of the core plate in the stress process is prevented, it is ensured that the core plate is mainly subjected to axial deformation all the time, and the anti-seismic property of the viscoelastic device is fully exerted.

The invention discloses a medium Reynolds number viscoelastic liquid film flow simulation method, which is characterized in that nondimensionalization and simplification are carried out based on a liquid film flow control equation and a UCM constitutive equation, and normal stress and shear stress balance conditions on the surface of a liquid film under the action of gravity, airflow shear force and evaporation effect are deduced; and according to a liquid film surface boundary condition and a wall surface slippage-free boundary condition, on the basis of the airflow shear force-free liquid film speed expression, an expression of the liquid film speed under the action of the airflow shear force and the evaporation effect is extracted. Deriving according to a boundary layer integration method to obtain a differential equation set of liquid film thickness and flow evolved along with time and a flow direction, wherein the differential equation set can be used for researching influence factors of liquid film flow characteristics; time discretization is carried out by adopting a Runge-Kutta method, spatial discretization is carried out by adopting a finite difference scheme, so that the change rule of the liquid film thickness along with the time and the flowing direction is obtained, and the influence rule of the airflow shear force and the evaporation effect on the change of the liquid film thickness is discussed.

The invention provides a parallel rheological framework constitutive model parameter calibration method for high-density polyethylene, and the method comprises the steps: obtaining the stress-strain data of a relaxation and rebound test, picking the stress-strain data at the relaxation end moment and the rebound completion moment, and then stripping time-independent elasticoplastic deformation behaviors, thereby achieving the calibration of the parameters of the parallel rheological framework constitutive model. Determining elastic-plastic parameters of the constitutive model of the parallel rheological framework; then, combining curve fitting of axial tension data and elasticoplastic deformation data to ensure that parameters of an elasticoplastic layer of the parallel rheological frame can be really matched with time-independent mechanical characteristics of a sample piece to be tested; and then loop optimization is carried out on viscoelastic layer parameters by using a second-generation non-dominated sorting genetic algorithm, and a simulation result is quantitatively judged through an equivalent root-mean-square error, so that the suitability of the parameters in stress relaxation and creep scenes is ensured, and finally, efficient and accurate calibration of the constitutive model parameters is realized.

The invention relates to a viscoelasticity measuring device, a viscoelasticity measuring method, and a computer-readable recording medium. The viscoelasticity measurement method may include: collecting viscoelasticity characteristic data including a loss modulus and a storage modulus measured by applying shear strain to an active material slurry for a secondary battery at preset intervals; calculating a loss factor defined as a ratio between the storage modulus and the loss modulus, and calculating a difference between a current loss factor and a previous loss factor as a loss factor differential; generating time series data based on the loss factor differential; performing a sliding window analysis on the time series data to calculate an average value of a plurality of loss factor differentiations included in each window; and deriving, as a damping factor, any one average value among the results of calculating the average values of the plurality of loss factor differentiations included in each window.

The application belongs to the technical field of adhesives, and particularly relates to a rubber type removable pressure sensitive adhesive and a preparation method thereof. The application provides a rubber type removable pressure sensitive adhesive, and preparation raw materials include, by weight, 100 parts of styrene-isoprene-styrene block copolymer, 100-150 parts of tackifying resin, 30-70 parts of softening agent, 0.2-1.5 parts of main antioxidant and 0.2-1.5 parts of auxiliary antioxidant. The unique formula design of the application enables the adhesive to have excellent instantaneous adhesion and sufficient cohesion. The pressure sensitive adhesive of the application benefits from balanced viscoelasticity, and the adhesive can be separated in a clean interface during peeling, without any residue on the surface of the adherend (such as glass, ceramic tile and wooden paint surface) and without damaging the base material. By using hydrogenated resin and a composite antioxidant system, oxidative degradation is fundamentally inhibited, the product is not prone to yellowing, brittle and oiling during long-term use, and has a long service life.

The invention discloses a sand-containing fog seal material and a preparation method thereof. The sand-containing fog seal material provided by the invention comprises the following components in parts by weight: 30-200 parts of matrix asphalt; 60 to 450 parts of water; 0.5 to 10 parts of an emulsifier; 5 to 50 parts of a thickening agent; 1 to 20 parts of a toughening agent; 0.2 to 10 parts of a modifier; and 20 to 60 parts of sand. According to the characteristics and use performance requirements of the sand-containing fog sealing layer material, good storage stability, construction workability, sand compatibility, wear resistance and water sealing performance are guaranteed, and meanwhile, the sand-containing fog sealing layer material has the effects of reducing ductility, viscoelasticity and the like of aged old asphalt and enhancing interface fusion of the old asphalt and the new asphalt; and the material cost can be greatly reduced.

The present invention discloses a viscoelastic reparable emulsion hole-sealing material and its intelligent dynamic hole-sealing process. It consists of a flexible first network polymer with a relatively high crosslinking degree and a second network polymer with a low crosslinking degree. The two are mixed and superimposed to form a double-network gel structure, and nanoparticles are added to enhance the strength and toughness of the double-network gel structure. The viscosity of the hole-sealing material is adjusted by a thickener. The intelligent dynamic hole-sealing process first seals the hole preliminarily through a plugging pocket, and then uses the characteristics of the viscoelastic reparable emulsion to perform secondary hole-sealing, forming a circular curtain for drilling plugging in the disc-shaped slot to ensure the hole-sealing effect. During the subsequent gas drainage process, according to the gas drainage situation, using the characteristics of the viscoelastic reparable emulsion hole-sealing material, the dynamic hole-sealing process continues, which can restore the hole-sealing effect and ultimately ensure the efficiency of gas drainage.

The invention relates to a construction method and device of an interface mechanical model, a medium and equipment, and belongs to the technical field of ocean engineering.The method comprises the following steps that A, a viscoelastic constitutive model of a steel and high polymer material interface is established, comprising an expression of stress and displacement when the interface of the steel and the high polymer material is subjected to normal and tangential loads; b, based on a calculation formula of a cohesion model damage value, establishing a tangential and normal mixed damage model of the steel and high polymer material interface through rigidity, fracture toughness and critical damage initial stress of a spring of the steel and high polymer material interface; c, according to the viscoelastic constitutive model of the interface of the steel and the high polymer material and the tangential and normal mixed damage model of the interface of the steel and the high polymer material, the ultimate bearing characteristics of the marine composite hose at different load loading rates are analyzed.