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223 results about "Deformation mechanism" patented technology

In structural geology, metallurgy and materials science, deformation mechanisms refer to the various mechanisms at the grain scale that are responsible for accommodating large plastic strains in rocks, metals and other materials.

Earth surface deformation monitoring method and system based on time sequence InSAR

The invention is suitable for the technical field of earth surface monitoring, and provides an earth surface deformation monitoring method and system based on a time sequence InSAR, and the method comprises the following steps: carrying out the SAR image screening and interferogram generation, and collecting corresponding meteorological data and thermal infrared data; performing space-time adaptive atmospheric phase correction, taking the air pressure vertical gradient and the temperature anomaly as driving factors of atmospheric delay, and separating an atmospheric phase through a space-time weighted model; dynamic deformation modeling is carried out, and deformation is decomposed into linear deformation and nonlinear deformation; the method comprises the following steps: taking a mining area road network as a geometric constraint, unwrapping a coherent region by adopting a minimum cost flow algorithm, converting an unwrapping phase into sight-line-direction deformation, and calculating horizontal and vertical deformation components in combination with InSAR sight-line-direction deformation and a digital elevation model. The method adapts to a complex deformation mechanism of a mining area by capturing linear and nonlinear deformation. Through sight line deformation and DEM geometric projection, vertical and horizontal deformation separation is realized, and the deformation direction is determined.
Owner:MUDANJIANG NATURAL RESOURCES COMPREHENSIVE SURVEY CENT OF CHINA GEOLOGICAL SURVEY

Settlement inversion prediction method based on water-soil coupling and well reservoir dynamic feedback

The invention provides a sedimentation inversion prediction method based on water-soil coupling and well reservoir dynamic feedback, which comprises the following steps: by collecting geological, hydrological, deformation monitoring and engineering construction data, constructing a three-dimensional geologic model containing a shallow unconsolidated formation and an underlying bedrock layer, and setting physical boundary constraints; establishing a water-soil bidirectional coupling model, integrating a seepage model and a deformation model, and realizing bidirectional coupling through a dynamic feedback mechanism; calculating the leakage / extraction amount based on the dynamic water level in the well and the hydraulic long pipe model, dividing the layer leakage amount and feeding back the layer leakage amount to the seepage model; model parameters are inversed and calibrated in combination with actually measured data; and finally, predicting a settlement spatio-temporal evolution process based on the calibration model, and generating a risk prevention and control scheme in combination with building settlement indexes. The method has the advantages that comprehensive information is obtained through multi-source data fusion, the deformation mechanism model considering the water-soil bidirectional coupling and the well storage effect is established, and the defects in multi-factor coupling, boundary condition processing and parameter inversion in the prior art are overcome.
Owner:TIANJIN SURVEY DESIGN INST GRP CO LTD

Deep foundation pit micro-deformation InSAR remote sensing method and system and storage medium

PendingCN121995369AImprove real-time performanceDetect deformation changes in timeFoundation testingCharacter and pattern recognitionGround based radarEngineering
The invention relates to the technical field of deep foundation pit monitoring, and discloses a deep foundation pit micro-deformation InSAR remote sensing method and system and a storage medium. The method comprises the following steps: synchronously acquiring data through a ground radar and an InSAR satellite, and obtaining a point target set and an original scattering characteristic sequence; obtaining a net deformation phase sequence without influence through registration residual correction, phase deduction and weighted fusion processing, and carrying out phase consistency quality control and unwrapping processing to obtain an accumulated deformation quantity sequence; constructing a deformation mechanism correlation characteristic matrix based on correlation analysis of the cumulative deformation quantity sequence and radar reflection intensity amplitude attenuation characteristics; and fusing the deformation mechanism correlation feature matrix and the real-time differential interference image group, extracting deformation rate and phase gradient change, and further generating a deep foundation pit local micro-deformation risk early warning index set. According to the invention, the tiny deformation of the surrounding area of the foundation pit can be effectively detected, potential risks are warned in advance, and the safety and monitoring efficiency in the construction process are improved.
Owner:HENAN HANGXING CONSTR ENG CO LTD

Density-adjustable cabling equipment and control method thereof

The invention relates to the field of cable cabling, in particular to density-adjustable cabling equipment and a control method thereof.The cabling equipment comprises a feeding mechanism, a pre-deformation mechanism, a bundling mechanism and a control unit; the feeding mechanism comprises a first guide disc driven by a driving unit to rotate, a main unwinding wheel used for unwinding a main wire core and a plurality of auxiliary unwinding wheels used for unwinding stranded cables. The pre-deformation mechanism comprises a pre-deformation device, and the pre-deformation device is provided with a first diameter measuring unit and a second diameter measuring unit; the bundling mechanism comprises a box body and a pulling piece, the distance between the box body and the pre-deformation mechanism is adjustable, a cabling through hole for a main cable core to penetrate through is formed, and the control unit can calculate a target spiral angle of the stranded cable under the condition that the preset distance is met, and further calculates the rotating speed of the first driving unit and the pulling speed of the pulling piece; according to the invention, the cabling process can be accurately controlled, the cable coating density can be flexibly adjusted, the cabling quality can be guaranteed, and the production reliability can be improved.
Owner:KUNSHAN EAST COAST OCEAN ENG CO LTD

Deformable air-ground amphibious robot and control method thereof

The deformable land-air amphibious robot comprises a robot body, a deformation mechanism, a land-air combined power device, an environment sensor and a controller, the deformation mechanism is installed on the robot body, the land-air combined power device is installed on the deformation mechanism, and the controller communicates with and controls a transverse rod steering engine, a longitudinal rod steering engine and the land-air combined power device. The environment sensor is installed on the machine body. The air-ground amphibious robot integrates a rotor power device and a wheel driving force device and can deform in multiple modes, and compared with existing cage type and wheel type air-ground amphibious robots, the air-ground amphibious robot has the advantages of being compact in structure, low in weight, long in endurance and high in task efficiency. Deformation resistance can be reduced through cooperative tilting in the air-ground switching process, the height / width size of the aircraft can be adjusted through cooperative tilting in the flight / ground movement process, and the aircraft has better obstacle space passing capacity, flight stability and holder detection view.
Owner:HANGZHOU YUNJIAN ZHIRONG INFORMATION TECHNOLOGY CO LTD

Copper foil thickness analysis method and system

The invention provides a copper foil thickness analysis method and device. The copper foil thickness analysis method comprises the steps that tension values of all layer number positions and thickness measurement results of the corresponding layer number positions in the copper foil winding process are obtained; analyzing a deformation mechanism by combining the obtained interlayer relative displacement and torsion angle according to the compression deformation analysis result to obtain stress distribution mode data; compensating thickness measurement data based on the stress distribution mode data to obtain compensated thickness measurement data; setting a normal thickness range and an anomaly judgment threshold based on the compensated thickness measurement data, and determining a sensitivity identification threshold parameter of thickness anomaly detection; judging a thickness anomaly state according to the sensitivity identification threshold parameter of the thickness anomaly detection to obtain a thickness anomaly detection result; and in combination with the thickness anomaly detection result and historical winding process thickness measurement data, thickness anomaly detection combination parameters are determined.
Owner:江西铜博科技股份有限公司 +1

Arch dam aging deformation mechanism analysis method

The invention discloses an arch dam aging deformation mechanism analysis method, and relates to the field of hydraulic structure safety. The method comprises the steps that based on three-dimensional terrain and geological data, a high-precision arch dam-foundation overall finite element mesh model is established, concrete materials and permeation partitions are divided carefully, and an anti-seepage and drainage system structure is embedded; by means of multi-source monitoring data, real boundary conditions such as water temperature and air temperature and thermodynamic parameters are dynamically recognized and optimized through the intelligent inversion technology; respectively analyzing the aging influence of single factors such as a temperature field and valley amplitude deformation on arch dam deformation by adopting finite element simulation; on the basis of the normalized deformation response data, a Bayesian optimized long-short-term memory neural network and a hierarchical correlation propagation algorithm are adopted, contribution weights of all factors to deformation are calculated, and weight rationality is verified through global sensitivity analysis. According to the method, quantitative separation and evaluation of the main deformation influence effect of the arch dam are realized, and a theoretical basis can be provided for structural health monitoring and safety management.
Owner:POWER CHINA KUNMING ENG CORP LTD +2

Shock absorber, vibration isolation device, two-device cover and refrigeration equipment

The embodiment of the utility model provides a shock absorber, a vibration isolation device, two device covers and refrigeration equipment, and belongs to the technical field of refrigeration, a first deformation mechanism has positive rigidity, and one end of the first deformation mechanism is installed on a main base. The adjusting blocks are connected with the other end of the first deformation mechanism, the adjusting blocks and the main base are arranged in the first direction, the adjusting blocks are arranged on the two opposite sides of the first deformation mechanism in a striding mode in the second direction, and the second direction and the first direction are arranged in a crossed mode. The auxiliary bases are arranged on the two opposite sides of the main base in the second direction. The second deformation mechanisms have negative stiffness, the auxiliary bases on each side are correspondingly provided with the second deformation mechanisms, and the second deformation mechanisms on each side are rotationally connected with the corresponding auxiliary bases and the corresponding ends of the adjusting blocks correspondingly. According to the shock absorber, the vibration isolation device, the two device covers and the refrigeration equipment, the good vibration isolation effect is achieved in a low-frequency interval, and vibration noise of the two device covers can be reduced.
Owner:HEFEI HUALING CO LTD +2

Complex sheet metal frame cabinet tailor-welding method

The invention relates to the technical field of welding, and discloses a complex sheet metal frame cabinet tailor-welding method which comprises the following steps: S1, splitting: assembling an upper frame, a lower frame and a middle stand column according to a design structure of a frame cabinet; s2, bending is conducted, specifically, corners of the upper frame, the lower frame and the middle stand column are bent; s3, splicing is conducted, specifically, the upper frame, the lower frame and the middle stand columns are spliced into a frame, and the middle stand columns are clamped in the bent positions; and S4, welding is conducted, specifically, the spliced exposed parts of the upper frame, the lower frame and the middle stand column are welded. Through the four-step process of modular splitting, precise bending, mechanical interlocking and flat welding optimization, an innovative frame of mechanical positioning and then welding fixing is constructed, welding deformation is controlled from the source, the assembly consistency is improved, mechanical structure design and the welding process are deeply coupled, and the welding efficiency is improved. And a dual anti-deformation mechanism of physical interlocking constraint and welding heat input control is formed.
Owner:GUIZHOU AEROSPACE NANHAI SCI & TECH

High-cycle fatigue strength evaluation method based on damage influence

The invention provides a high-cycle fatigue strength evaluation method based on damage influence, and belongs to the technical field of aero-engines. The method comprises the following steps: performing a high-cycle fatigue test on a to-be-tested material to obtain first high-cycle fatigue strength, and performing a damage fracture test corresponding to a damage type to obtain a damage life, the damage type comprising creep damage and low-cycle damage; determining interruption time on the basis of the damage life, performing a damage fracture test on the basis of different interruption time, then performing a high-cycle fatigue strength test to obtain second high-cycle fatigue strength, and constructing a damage model; constructing a crystal plasticity constitutive model based on the damage model to perform simulation calculation on the to-be-tested material to obtain a simulation damage value; and correcting the first high-cycle fatigue strength based on the second high-cycle fatigue strength and the simulated damage value to obtain an evaluation result of the to-be-tested material. According to the method, deformation mechanisms of different damage types are clearly distinguished, the method is more flexible, interruption time setting refers to influences of different damage degrees, and the method is more accurate, safer and more reliable.
Owner:DONGFANG TURBINE CO LTD +1

Preparation method of heterostructure high-performance metastable beta titanium alloy capable of inducing deformation mechanism in multilevel and sequential mode

The invention discloses a preparation method of a heterostructure high-performance metastable beta titanium alloy capable of inducing a deformation mechanism in a multilevel and sequential mode, and belongs to the technical field of metal materials. The method comprises the following steps: firstly, carrying out hot rolling in a beta single-phase region to prepare a blank and crushing coarse grains; substructures such as twin crystals and martensite are introduced through cold rolling; and through short-time annealing in a beta single-phase region, a multi-stage heterogeneous lamellar structure composed of thick equiaxed crystal grains, deformation recovery crystal grains and fine recrystallized crystal grains in an alternating manner is successfully constructed. The characteristic that twin crystals and martensite induce different stresses under different grain sizes is utilized, during deformation, thick equiaxed grains firstly start a deformation mechanism, and then fine recrystallized grains are activated; and in the later period of plastic deformation, the interior of the primary deformation strip further triggers a secondary deformation mechanism. The unique behavior of'grading-time sequence 'activation of a multi-deformation mechanism along with the increase of the dependent variable enables the metastable beta titanium alloy to keep excellent plasticity, and meanwhile, the work hardening rate is remarkably improved.
Owner:YANSHAN UNIV

Sintering model construction method and system for ceramic material densification parameter prediction

The invention discloses a sintering model construction method and system for ceramic material densification parameter prediction, and relates to the technical field of material science. The method comprises the following steps: quantitatively describing a deformation mechanism of a ceramic material in a sintering process based on continuum mechanics; constructing a sintering model according to the quantitatively described deformation mechanism and densification mechanism of the ceramic material; densification parameters in the sintering process are determined, and the optimal densification parameters are predicted through the sintering model; and calculating the relationship between the instantaneous relative density and the height change of the pressed blank, and verifying the prediction result of the sintering model according to the relationship between the instantaneous relative density and the height change of the pressed blank. According to the method, the macroscopic densification rate and the relative density in the sintering process can be accurately simulated and predicted by constructing the sintering model.
Owner:YANSHAN UNIV +1

Disassembling and assembling device for brake head bush of railway passenger train

The invention discloses a railway passenger train brake head bush dismounting device which comprises a bolt, a brake head anti-deformation mechanism and a locking matching mechanism, the brake head anti-deformation mechanism and the locking matching mechanism are assembled on the bolt, and the brake head anti-deformation mechanism is used for being installed between two bush assembling plates of a brake head. The two lining assembling plates are respectively provided with lining assembling holes which are coaxially distributed with the bolts; the bolt comprises a screw portion and a driving portion which are integrally connected, the locking matching mechanism is in threaded connection with the screw portion, a sleeve is arranged between the driving portion and the brake head anti-deformation mechanism, a sleeve is arranged between the locking matching mechanism and the brake head anti-deformation mechanism, and the sleeves are bushings matched with the bushing assembly holes or sleeve withdrawing sleeves higher than the bushings. According to the invention, the bush assembly plate of the brake head can be effectively prevented from being extruded and deformed, so that the maintenance cost is reduced, the two bushings can be inlaid or withdrawn at the same time, and the maintenance efficiency of the brake head is improved; in addition, use and operation are easy, and the requirement for maintainers is low.
Owner:GUANGZHOU RAILWAY VEHICLE FACTORY

Mobile device

The present invention relates to a mobile device comprising a deformation mechanism that changes a relative disposition relationship between a plurality of wheels and a control unit that selects a movement path based on a deformation amount of the deformation mechanism. More specifically, the plurality of wheels include a first wheel and a second wheel, and the deformation mechanism changes the disposition relationship between the first wheel and the second wheel in a twist direction.
Owner:SUMITOMO HEAVY IND LTD

Fracture conductivity evaluation method considering shale hydration

The invention constructs a fracture conductivity evaluation method considering shale hydration. The method mainly comprises the following steps: 1, carrying out a triaxial hydration creep mechanics experiment, establishing an elastic-viscoelastic-viscous plastic multi-stage creep constitutive equation based on triaxial experiment data, and analyzing shale elastic and viscous deformation mechanisms; 2, secondly, constructing a shale creep constitutive model by stages according to a stress threshold value, describing a viscoelastic stage by adopting an improved Burgers model, and establishing a viscoplastic strain equation based on an overstress theory; 3, coupling hydration action parameters to correct a shale creep equation, and quantifying the influence of hydration on rock modulus, viscosity coefficient and yield stress; 4, the creep strain and the crack dynamic width are correlated through a mathematical model, and a multi-field coupling relation is established in combination with a permeability evolution rule; and 5, finally constructing a fracture conductivity prediction model when the hydration effect is considered, and realizing fracture conductivity dynamic analysis under the hydration-creep synergistic effect. According to the method, the shale hydration-creep coupling effect is creatively fused into fracture conductivity prediction, and a quantitative tool is provided for shale reservoir long-term productivity evaluation.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Twin crystal nucleation position and variant selection prediction method based on machine learning

The invention discloses a twin crystal nucleation position and variant selection prediction method based on machine learning, and belongs to the crossing field of material science and machine learning. The method comprises the following steps: acquiring microscopic structure data of a deformation material through electron back scattering diffraction, and constructing a multi-dimensional data set containing crystal grain parameters, crystal boundary parameters and deformation mechanism parameters by taking crystal grains and a certain crystal boundary combination as an analysis unit; and then modeling and predicting the twin crystal nucleation position and variant selection respectively by adopting a hierarchical machine learning modeling strategy. According to the method, the twinning behavior in the polycrystalline material can be efficiently and accurately predicted, and theoretical support and a technical path are provided for high-performance metal material design and plastic deformation mechanism research.
Owner:CHONGQING UNIV

Novel high-performance viscous damping wall

The invention belongs to the technical field of damping walls, and particularly relates to a novel high-performance viscous damping wall which comprises a channel steel box used for containing viscous liquid and arranged between an upper damper connecting wall pier and a lower damper connecting wall pier and a damping body vertically placed in the channel steel box and connected with the damper connecting wall piers. A plurality of metal plates are arranged in the vertical direction of the channel steel box in an array mode, and anti-deformation mechanisms movably connected with the two ends of the bottoms of the metal plates in a sleeving mode are arranged on the side faces of the two ends of the inner bottom of the channel steel box. According to the novel high-performance viscous damping wall, through the arrangement of the anti-deformation mechanism, when the damping wall is subjected to vibration in different directions or the instantaneous vibration deformation force is too large, the metal plate can elastically displace in time in the thickness direction of the channel steel box, and the problem that the metal plate is in rigid contact with the damping body and deforms is solved.
Owner:CHINA NORTHWEST ARCHITECTURE DESIGN & RES INST CO LTD +2

Method and device for online identification of acoustic emission of porous metal deformation mechanism and electronic equipment

The application discloses a kind of porous metal deformation mechanism acoustic emission online identification method, device and electronic equipment, including collection porous metal material acoustic emission signal and characteristic parameter data and pre-processing, obtain each acoustic emission signal feature vector;Determine the loss function of porous metal material deformation, build acoustic emission machine learning classifier candidate model;Train multiple different parameters machine learning classifier candidate model;Evaluation and optimization are carried out, and preferred machine learning classifier model is selected;Preferred machine learning classifier model is applied to online identification of the deformation mechanism of porous metal material acoustic emission signal.This method can be combined with the loss function determined based on the distribution characteristics of acoustic emission signal of different deformation mechanisms, build machine learning classifier model, have the characteristics of not needing label data and high identification accuracy and effectiveness.
Owner:XI AN JIAOTONG UNIV

Low-stacking-fault-energy micro-twin-crystal synergistically-deformed cobalt-based alloy and preparation method thereof

PendingCN121976093ASimultaneous optimization of high temperature strengthSimultaneous optimization of plasticityBlade accessoriesMachines/enginesElectronic structureSuperalloy
The invention relates to a low-fault-energy micro-twin synergistic deformation cobalt-based alloy and a preparation method thereof, and belongs to the field of cobalt-based high-temperature alloys. According to the alloy, on the basis of Co-Al-W, Ti and Ta which are smaller than or equal to 4 wt% are added according to calculation of a first principle, and the stacking fault energy is controlled to be-95 mJ / m < 2 > to-89 mJ / m < 2 > (0K). Aiming at the defect of insufficient high-temperature plasticity of the gamma '-phase strengthened cobalt-based alloy, an electronic structure is accurately regulated and controlled through a first principle, intrinsic stacking fault energy is designed to reach an optimal negative value interval, a micro-twin mechanism is activated, dislocation slippage and micro-twin coordination is realized, and the problem of sudden plasticity drop caused by single deformation mechanism (dislocation slippage leading) and grain boundary weakening of a traditional alloy is solved; the high-temperature strength and the plasticity are synchronously improved.
Owner:ZHEJIANG JIULI HI TECH METALS CO LTD

Crack anti-deformation mechanism of automobile bumper

The utility model relates to the technical field of crack deformation prevention of bumpers, and provides a crack deformation prevention mechanism of an automobile bumper, which is characterized in that an inner socket is inserted into a cutting groove, then a positioning plate is placed at the bottom of the inner socket, and a positioning rod sequentially penetrates through the inner socket and the positioning plate; the positioning plate can be fastened to the bottom of the inner socket by matching the positioning rod with the nut, and meanwhile, the positioning plate, the inner socket and the positioning rod inserted into the joint of the positioning plate and the inner socket can be used for fastening the inner socket to the cutting groove. The movable clamping plate is driven by the second middle column, the movable clamping plate is matched with the fixed clamping plate, and limiting work on the first inner column can be completed in the inner socket. And the tensioning rib in a single direction cannot play a tensioning role, so that a crack is deepened and even deformed.
Owner:WUHAN MINGJIE MOULD & PLASTICS CO LTD

Full-profile electrolytic machining device and method based on in-situ deformation of integral cathode for shrouded blade

A full-profile electrolytic machining device and method based on in-situ deformation of an integral cathode for a shrouded blade, which belong to the technical field of electrolytic machining. A blade basin / back cathode body in the device consists of a cathode base, a shroud platform cathode, a blade airfoil cathode, a tenon platform cathode, a shroud-side water blocking block, a tenon-side water blocking block and an upper-end water blocking block. During machining, by means of a driving device and a deformation mechanism, platform cathodes on two sides are enabled to be in an inwardly retracted state at the beginning, so as to machine a blade airfoil profile; and when the blade airfoil profile is machined to a certain depth, the platform cathodes on the two sides expand outwards, such that the platform cathodes on the two sides generate in-situ swinging deformation close to platform profiles on two sides of a blade while the blade airfoil profile is machined, thereby achieving synchronous full-profile electrolytic machining of a blade airfoil of a shrouded blade and platforms on two sides thereof. The device can improve the machining efficiency, machining precision and surface quality, and has relatively good practical application prospects.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

A method for oilfield modeling integrating InSAR 3D deformation and geophysical model

The present invention discloses a method for modeling an oilfield area by integrating InSAR three-dimensional deformation and a geophysical model, belonging to the technical field of surface deformation monitoring and physical model inversion. The present invention solves the problem of how to provide a method for acquiring three-dimensional deformation of an oilfield area without sacrificing resolution and accuracy. The present invention comprises the following steps: S1: selecting ascending and descending SAR observation data to obtain vertical and east-west deformation components; S2: obtaining north-south deformation components; S3: using the geophysical model integrating the orthogonal rectangular model as a physical inversion model, and introducing it into the nonlinear Bayesian physical parameter inversion of the underground oilfield; S4: using the extracted vertical, east-west, and north-south three-dimensional displacement fields of the oilfield as inversion observations, and utilizing a nonlinear Bayesian inversion method to achieve modeling of the three-dimensional deformation of the underground oilfield. The present invention provides a favorable basis for analyzing the multi-dimensional deformation mechanism and dynamic spatiotemporal evolution of the oilfield.
Owner:SOUTHWEST JIAOTONG UNIV

Opposite-pulling anchor rod supporting device capable of adjusting pre-tightening force

The utility model relates to the technical field of coal mine tunnel supporting, and discloses a pre-tightening force adjustable counter-pulling anchor rod supporting device which comprises an anchor rod main body, adjusting rods are fixedly connected to the two ends of the anchor rod main body, the outer walls of the two adjusting rods are sleeved with tray assemblies, and the outer walls of the adjusting rods are in threaded connection with fixing nuts; the outer wall of the fixing nut is fixedly connected with a fixing disc, an adjusting assembly is installed on the outer wall of the fixing disc, and through the design of the adjusting assembly, an operator can rotate the handle to drive the gear ring to rotate, then the gear and the adjusting nut are made to rotate, and driving of the screw rod is achieved; finally, the position of the tray assembly is flexibly adjusted to change the pre-tightening force of the anchor rod, the pre-tightening force can be adjusted in time according to the real-time deformation condition of the surrounding rock through the adjusting mode, a cooperative deformation mechanism between a supporting body and the surrounding rock can be effectively exerted, and compared with the problems that a traditional opposite-pulling anchor rod is single in pre-tightening force applying mode and cannot adapt to the complex environment, the anchor rod pre-tightening force applying mode is simple. The method has obvious advantages.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY

Mobile device

Provided is a mobile device that is capable of traveling on a movement path with a small number of passages of irregularities. A mobile device (10) includes a deformation mechanism (14) that is capable of changing a relative disposition relationship of a plurality of wheels (16) and a control unit (30) that selects a movement path based on a deformation amount of the deformation mechanism (14).
Owner:SUMITOMO HEAVY IND LTD

A high-maneuverability wave glider vehicle and a design method thereof

The application discloses a design method of a high-maneuverability control characteristic gliding wave-riding aircraft, and the design method comprises the following steps: step one, selecting a conical wave-riding body as a basic configuration of the aircraft, wherein the wave-riding body comprises a fixed section aircraft body and variable side front edges located on the left and right sides of the fixed section aircraft body, the variable side front edges can be rotated into the fixed section aircraft body, the left and right variable side front edges are respectively denoted as a left variable side front edge and a right variable side front edge; step two, determining a front edge line of the wave-riding body; step three, determining the height and curvature of the upper surface of the wave-riding body; step four, determining the maximum distance from the upper surface of the wave-riding body to the lower surface of the fixed section aircraft body; and step five, designing the variable side front edges; the application greatly adjusts the lift-drag ratio of the wave-riding aircraft body, improves the utilization rate of the internal volume of the aircraft, and makes the wave-riding aircraft have comprehensive maneuvering characteristics of pitching, yawing and rolling by using a simple rotating deformation mechanism.
Owner:NORTH CHINA UNIVERSITY OF TECHNOLOGY

Adhesive sticker easy to tear

The utility model relates to the technical field of adhesive stickers, in particular to an easy-to-tear adhesive sticker which comprises bottom paper and an anti-deformation mechanism, the anti-deformation mechanism comprises an adhesive sticker layer, a memory support layer, a double-faced adhesive tape layer and an anti-deformation layer, the adhesive sticker layer is fixed to the upper surface of the bottom paper in an adhesive mode, and the memory support layer is fixed to the upper surface of the anti-deformation layer. The lower surface of the memory support layer is fixedly adhered to the upper surface of the non-setting adhesive layer, the lower surface of the double-sided adhesive layer is adhered to the upper surface of the memory support layer, and the lower surface of the anti-deformation layer is fixedly adhered to the upper surface of the double-sided adhesive layer; the anti-deformation layer is arranged, so that the non-setting adhesive sticker is not prone to wrinkling, the memory support layer is arranged, the non-setting adhesive sticker is prevented from being wound, the anti-static layer is arranged, static electricity is prevented from being generated, safety is improved, the easy-to-tear opening is formed in the release paper, and the arc-shaped openings are formed in the two sides of the release paper, so that the non-setting adhesive sticker is easier to tear; and an easy-to-tear handle is arranged on the side surface of the backing paper, so that the backing paper is easy to tear off from the non-setting adhesive layer.
Owner:ZHEJIANG LIQUN TECH CO LTD

Time sequence multi-dimensional point cloud deformation recognition method and system, electronic device and storage medium

The application discloses a kind of time sequence multidimensional point cloud deformation identification method, system, electronic equipment and storage medium, wherein time sequence multidimensional point cloud deformation identification method includes: based on the surface of measured object of the multiple frames of point cloud of deformation occurrence, construct time sequence multidimensional point cloud;Grid time sequence multidimensional point cloud;After grid time sequence multidimensional point cloud, point deformation tracking is carried out gradually;Based on deformation tracking result, establish the point pair matching relationship of time sequence multidimensional point cloud;Based on point pair matching relationship, construct local deformation descriptor and global deformation descriptor, to identify the surface deformation process of measured object.This application is applied to small scene fine full-field deformation identification, by constructing local and global deformation descriptor in time sequence multidimensional point cloud, provide a comprehensive and complete identification method for the deformation of object surface, accurately depict the whole process of the surface deformation of measured object from local and global angle, better reflect deformation law, reveal deformation mechanism and characteristics.
Owner:TONGJI UNIV

Matching automation and key structural member checking optimization method of test bench

The invention provides a matching automation and key structural member checking optimization method of a test bench. The method comprises the following steps: S1, carrying out structure module division on a test bench system; S2, constructing a parameter driving model deformation mechanism; S3, establishing an assembly body automatic generation mechanism; s4, naming a surface attribute and a body attribute of the model in the CAD model, wherein the surface attribute and the body attribute are used for identifying an applied load, a boundary condition and a material attribute; s5, constructing a simulation automation process; S6, identifying a weak area of the structure based on a simulation analysis result, and performing optimization; and S7, the optimization process is iterated until the structural strength, rigidity and assembly requirements are met, and a final rack adaptive structure scheme is output. According to the method, efficient design under the requirements of multiple working conditions can be achieved, the design precision and the stability and safety of key structural components are remarkably improved, powerful assistance is provided for design and manufacturing of a test bed, and technical progress and innovative development of related industries are promoted.
Owner:SUZHOU TAIZE TECH CO LTD +1

Deformation-resistant high-weather-resistance foldable skeleton

The utility model discloses an anti-deformation strong weatherability foldable skeleton, concretely relates to bed accessory technical field, including first frame and second frame, one side of the first frame is provided with the second frame in parallel, the left and right ends of the upper side of first frame and the second frame are symmetrically provided with skeleton buckles through welding, and the skeleton buckles are provided with the first frame and the second frame. A multi-layer supporting structure is formed by arranging an anti-deformation mechanism, a plurality of supporting seats, a first supporting rod and a second supporting rod in the frame in a matched mode, and when the skeleton is stressed, the structure can evenly disperse pressure, prevent bending deformation and improve the stability of a bed body, so that a user can sleep more comfortably; the hinges are arranged at the joints of the first frame and the second frame and are fixed by the fastening screws, so that the skeleton can be folded, the occupied space can be reduced by folding during transportation, and the cost is reduced; and storage is convenient during storage, so that great convenience is brought to a user.
Owner:HANGZHOU PAULINE HARDWARE IND