27 results about "Support condition" patented technology

The invention discloses a method for analyzing the strength stability of a composite material wallboard, which comprises the following steps of: 1) carrying out a wallboard strength test on a wallboard structure of a T-shaped stringer disconnected at a rib position to obtain test data required in the method for analyzing the strength of the wallboard; 2) performing finite element simulation on the BVID damage with the lowest residual strength in the wallboard in the same configuration and same loading mode in the wallboard strength test; 3) based on the finite element simulation in the step 2), establishing a multi-configuration wallboard finite element model; and 4) based on the multi-configuration wallboard finite element model in the step 3), fitting to obtain a correction coefficient, and determining a strength stability analysis method.According to the method, the defects of a classical wallboard strength engineering algorithm in stringer support condition simulation, layering applicability, BVID damage and initial geometric defect influence are overcome.

The invention discloses an assembly type pile structure quasi-static test system and device. The assembly type pile structure quasi-static test system comprises a model box arranged on one side of a reaction wall. The pile structure model inserted into the inner side of the model box comprises a model main body, a model seat, a left insertion column and a right insertion column which are of an integrated structure, and the left insertion column and the right insertion column are both inserted into soil on the inner side of the model box; according to the fabricated pile structure quasi-static test system and device, by designing a rotary quick connection structure between the vertical force loading cross beams of the model, the stability of the vertical force loading cross beams above is effectively improved, displacement and falling of the cross beams in the test process are avoided, stable proceeding of the test is guaranteed, and the test efficiency is improved. Meanwhile, the subsequent rapid disassembly and assembly of the vertical force loading cross beam are facilitated, and the test convenience is improved; and an auxiliary limiting structure is designed between the rubber support and the model, so that the stability of the rubber support in a test is ensured, and a reliable basic supporting condition is provided for the test.

The invention discloses a seat pressure distribution detection method and system, a seat and equipment, and the method comprises the steps: obtaining a pressure characteristic parameter of the contact between a user and the seat and a contact hot area characteristic parameter; obtaining an initial pressure distribution result of the user on the seat according to the pressure characteristic parameters of the contact between the user and the seat; according to the incidence relation between the pre-stored pressure characteristic parameters and the contact hot area characteristic parameters, the initial pressure distribution result is corrected through the contact hot area characteristic parameters, a final pressure distribution result is obtained, and the final pressure distribution result comprises the human tissue type and the pressure of the contact part of the user and the seat. With the adoption of the method and the device, the supporting condition of the seat on each part of the body of the user can be accurately known, so that reliable guidance can be brought to the supporting adjustment of the seat.

A method for determining the working resistance of a unit support in the advance section of a mining roadway includes the following steps: S1, collecting geological parameters of the overlying strata in the advance section of the roadway to be tested and determining the load on the roadway; S2, classifying the roadway into six types based on the lithology of the roadway roof, the structure of the roadway roof, whether the roadway is affected by impact, and whether the roadway is along the goaf; S3, calculating the surrounding rock load in the advance section for each of the six types of roadways; S4, calculating the roadway bearing capacity for each of the six types of roadways; S5, calculating the rated working resistance of the unit support for each of the six types of roadways. The method described in this invention comprehensively considers all possible load sources that the unit support may bear, as well as the active support provided by the roadway anchor cables, maximizing the stability of the active support system for the roadway. It can accurately calculate the working resistance of the unit support under different roadway types and support conditions, providing systematic guidance for the scientific use of the unit support throughout the entire process, ensuring that the working space is in a safe zone, and reducing safety hazards.

To provide a server and a program for support that promotes use of a support tool.SOLUTION: A support system 1 includes a cheer server 100 and a supporter terminal 200 used by a user. The supporter terminal 200 receives a support operation to support a support target via an electronically displayed virtual card, generates, on the basis of the received support operation, a support request, and transmits the request to the cheer server 100. The cheer server 100 determines, in response to the received support request, whether a support condition is satisfied and returns, when it determines that the condition is satisfied, a success response to the supporter terminal 200, and grants a cheering point to the support target represented by the virtual card.SELECTED DRAWING: Figure 1

The invention discloses equipment for detecting and loading a support mesh. The equipment comprises a structural frame; the two end sides of the mounting lifting frame table are connected with the structural frame in an up-down sliding mode, and a plurality of sets of connecting hole positions are distributed in the mounting lifting frame table in an array mode; the multiple sets of net piece fixing rod pieces are detachably connected to the corresponding connecting hole positions according to the row pitch layout of the underground supporting system, and the lower ends of the multiple sets of net piece fixing rod pieces are fixedly connected with supporting net pieces to be loaded. The loading device is detachably connected to the hanging lifting frame table, and a displacement sensor and a pressure sensor are fixed to the loading moving end of the loading device; the computer control system is arranged on the outer side of the structural frame, receives and processes detection data of the displacement sensor and the pressure sensor and obtains mechanical parameters of the supporting mesh, and the computer control system controls the working state of the loading device in a linkage mode. According to the invention, the loading force test on the support mesh under different support conditions can be simulated, and workers can be assisted to comprehensively evaluate the mesh quality.

The present invention relates to a prestressed immersed tube segment, a design method and an SPMT-based barge loading method. In the prestressed immersed tube segment, transverse first prestressed steel strands are provided in a bottom plate of the prestressed immersed tube segment, such that all parts of the bottom plate can satisfy support conditions of SPMTs, and then the SPMTs can be fully distributed under the bottom plate, sufficient support force can be provided when using the SPMTs to transport the prestressed immersed tube segment and the degree of cracking of the prestressed immersed tube segment can be reduced, and therefore the SPMTs can be used to transport immersed tube segments into barges; transverse second prestressed steel strands are provided in a top plate, the second prestressed steel strands can overcome the impact of the first prestressed steel strands on the stress of the top plate, and the arrangement of the first prestressed steel strands and the second prestressed steel strands conforms to the load forms of the bottom plate and the top plate of the immersed tube segment during operation, satisfying the stress state of the immersed tube segment during operation, reducing the amount of reinforcement of the bottom plate and the top plate, and saving costs.

This disclosure relates to a method, apparatus, electronic device, and storage medium for outputting information, and pertains to the field of structural engineering technology. The method includes: acquiring relevant parameters of a rectangular plate, including dimensional parameters, elastic mechanical parameters, and load calculation parameters; determining the initial settlement at each corner point of the rectangular plate; determining first and second coefficients corresponding to each side based on the boundary conditions of each side of the rectangular plate and a pre-set set of equations corresponding to each side; determining the structural parameters of the rectangular plate based on the relevant parameters, initial settlement, and the first and second coefficients corresponding to each side; and outputting the structural parameters. Applying this disclosure allows for the calculation of the structural parameters of a rectangular plate under any support conditions, improving the accuracy of structural parameter calculation.

The present invention proposes a method and system for determining and optimizing anchor rod length based on a complex function method, relating to the technical field of tunnel construction. The method includes determining the unsupported analytical function of the tunnel under gravity; assuming the force exerted by the surrounding rock on the anchor rod as a pair of equal and opposite concentrated forces, and solving the analytical functions of the shallow tunnel soil under the equal and opposite concentrated forces without gravity; accumulating the unsupported analytical function of the tunnel under gravity and the analytical function of the shallow tunnel soil under the equal and opposite concentrated forces to obtain the analytical function of the tunnel under gravity and anchor rods; based on the analytical function of the tunnel under gravity and anchor rods, calculating the stress and displacement of the surrounding rock and the axial force of the anchor rod under anchor rod support conditions, and obtaining the optimal length of the anchor rod. The present invention uses a complex function method to calculate the adapted length of the anchor rod, calculate the axial force, elongation, and surrounding rock deformation of the anchor rod, and further determine the anchor rod design parameters.

The invention discloses an integrated external wall panel strength testing device, and relates to the technical field of integrated external wall panel strength testing. An existing testing method cannot simulate various supporting conditions, so that a testing result is disjointed with actual application, and product reliability evaluation is affected. The device comprises a supporting seat, an expansion table, a vertical frame, a motor, a screw rod, a loading arm, a pressure sensor, a loading disc and a testing assembly, the upper part of the supporting seat is connected with the expansion table, the rear side of the supporting seat is connected with the vertical frame, the upper side of the vertical frame is connected with the motor, an output shaft of the motor is connected with the screw rod, the screw rod is rotatably connected with the vertical frame, and the screw rod is in threaded connection with the loading arm. The loading arm is in sliding connection with the vertical frame, the front portion of the loading arm is connected with a pressure sensor, the lower side of the pressure sensor is connected with a loading disc, and a strength testing assembly is arranged on the supporting seat. According to the technical scheme, the stress state of the external wall panel can be simulated more truly by adjusting the supporting conditions, so that the reliability of the external wall panel under different supporting conditions is ensured, and potential safety hazards in actual engineering are reduced.

This invention discloses a method for assessing the overturning resistance of gravity shoulder retaining walls for ballastless track under rock foundations, comprising the following steps: S1: obtaining embankment parameters supported by gravity retaining walls; S2: calculating the overturning stability coefficient of the retaining wall; S3: calculating the limit value of the overturning stability coefficient of the retaining wall; S4: comparing the overturning stability coefficient of the retaining wall with the limit value of the overturning stability coefficient to assess the overturning resistance of the retaining wall. This invention is beneficial for controlling the dynamic deformation of the ballastless track subgrade surface under gravity shoulder retaining wall support conditions, improving train operation conditions, ensuring the long-term stability of the subgrade under train loads, and the overturning stability coefficient of the retaining wall involved is widely used in engineering. The limit value of the overturning stability coefficient of the retaining wall is only related to the wall back inclination angle, and the assessment process is simple and convenient. It is a supplement and improvement to the construction assessment technology of gravity shoulder retaining walls for high-speed railway ballastless track subgrades under rock foundation conditions.

The invention discloses a bi-material combined type bi-stable state energy absorption cell element and an energy absorption structure. The energy absorption cell element comprises a curved beam structure, an oblique beam structure, a T-shaped supporting structure, a U-shaped supporting structure and a fixing pin. The curved beam structure and the oblique beam structure are vertically and longitudinally arranged on the upper portion of the U-shaped supporting structure, and the T-shaped supporting structure is arranged on the central axis of the curved beam structure and the central axis of the oblique beam structure and assembled and formed through fixing pins. A supporting structure prepared from resin and a beam unit prepared from thermoplastic polyurethane are combined to form a two-dimensional unit cell structure, and the requirement of the beam unit for the clamped supporting condition is met through the small supporting structure. According to the difference of buckling positions of the cant beam and the curved beam, the peak force of the curved beam and the cant beam appears in different displacement stages, so that the peak force of the structure is effectively improved, the energy absorption efficiency is improved, and meanwhile, the bistable characteristic is achieved. In addition, by replacing the oblique beams with different thicknesses, the extreme force of the cell element structure can be increased, the bistable distance is shortened, the energy absorption capacity of the structure is improved, and the practicability is high.

The invention relates to the technical field of machining centers, in particular to a lead nine-axis machining center which comprises a base, a vertical part, a horizontal part, a sawing mechanism and a machining platform. The base provides mounting and supporting conditions for the vertical part, the horizontal part, the saw cutting mechanism and the machining platform, during work, a worker places a workpiece needing to be machined on the machining platform, the workpiece is drilled through the vertical part and the horizontal part, the workpiece is cut through the saw cutting mechanism, and then the workpiece is cut through the saw cutting mechanism. The workpiece is driven by the machining platform to transversely move on the base, the machining position of the workpiece is adjusted, the workpiece does not need to be disassembled and assembled again to adjust the angle, the time for repeatedly clamping the workpiece is saved, the machining efficiency of the workpiece is improved, and therefore the problem that the efficiency is too low due to multiple procedures and multiple times of clamping is solved.

The invention discloses an automatic modeling method of an electric small pipeline piping support. The method comprises the following steps of 1, obtaining electric small pipeline piping information and a standard support form; 2, the size of a pipe clamp is determined according to the piping information of the small electrical pipeline, and the support form is determined according to the distance between the piping center and the wall; 3, determining the bracket sharing condition according to the piping information and the bracket form; 4, according to the bearing capacity requirement of the supports, the distance between the supports is determined, and a support model is generated; 5, for the support form needing the embedded part, parameters of the embedded part or the rear anchoring plate are automatically determined according to the support form and the support bearing capacity, and a model of the embedded plate or the rear anchoring plate is generated; 6, constraint information of the electrical small pipeline piping support is obtained; 7, judging whether the position of the support meets the constraint information or not; and 8, completing bracket modeling. The problems of low construction efficiency and resource waste caused by different model selection and arrangement standards of the electric small pipeline piping support are solved.

The present application relates to a design method for a steel-concrete joint section based on a top plate deflection constraint, comprising the following steps: equating the top plate of the steel-concrete joint section to a continuous beam supported on an elastic support, wherein the elastic support includes a stiffening rib or anchor pipe located below the top plate; determining the maximum deflection w of the equivalent continuous beam caused by the first wheel load under the elastic support condition; solving the stiffness k of the stiffening rib or anchor pipe serving as the elastic support; determining the top plate deflection constraint inequality, and solving it in conjunction with the calculation formula for the maximum deflection w of the continuous beam to determine different types of stiffening ribs or anchor pipes and their sizes, and / or transverse bridge spacing. The present application provides a design method for a steel-concrete joint section based on a top plate deflection constraint, which can quickly determine stiffening ribs or anchor pipes that both meet the prestressed steel bundle anchoring space requirements and provide sufficient stiffness support for the top plate.

To provide a method for erecting a steel rigid frame structure, which can easily construct a column base designed by selectively using column base support conditions according to the type of load.SOLUTION: An assembly of the steel rigid frame structure is completed by plumbing a steel column 1 placed on a temporary support 3 and attaching the beam members supported by the shoring, and the bolt holes in a base plate 1a are closed by welding washers 6. An anchor bolt 4 on the side where the base plate 1a rotates downward due to the rotation of the column base caused by jacking down the beam members is temporarily tightened so that a nut 4a comes into contact with the top surface of the washer 6, and the remaining anchor bolts 4 are temporarily tightened with a gap secured between them and the nut 4a so that they do not come into contact with the top surface of the washer 6 on the side where the base plate 1a rotates upward. After the beam members are jacked down and stand on their own as a frame of the steel frame structure, all of the anchor bolts 4 are finally tightened and base mortar 7 is completely filled under the base plate 1a.SELECTED DRAWING: Figure 4

This invention relates to the field of dynamic balancing testing technology, specifically to a generator dynamic balancing testing device. The generator dynamic balancing testing device is configured to perform dynamic balancing tests on the generator rotor. The device includes a test platform, a support assembly, a timing belt, and a pulley assembly. The support assembly is mounted on the test platform and configured to support the rotor's rotation. The timing belt is mounted on the test platform and forms a closed motion loop on it. The pulley assembly is mounted on the test platform and configured to enable the timing belt to form a closed motion loop. The timing belt has a fixed section that wraps around the top of the rotor during use and makes frictional contact with the rotor. Thus, when the rotor rotates, the fixed section provides external constraint to the rotor, ensuring the stable support conditions required for the dynamic balancing test and guaranteeing the accuracy of the test results.

The application relates to a portable comfortable seat, which can adjust the angle between a leaning assembly and a cushion assembly when in use, so that the leaning assembly is at a proper inclination angle, and the user is in a comfortable sitting posture; meanwhile, the angle between a headrest assembly and the leaning assembly can be adjusted to meet the headrest demand. In addition, the supporting assembly can be unfolded from the cushion assembly, so that the user's legs can be supported on the supporting assembly. The design can effectively meet the support conditions of different sitting postures of the user and improve the comfortable demand of the user in rest. When carrying, the headrest assembly can be folded on the leaning assembly; the supporting assembly and the leaning assembly are respectively folded on the cushion assembly, so that all the assemblies are concentrated on the cushion assembly; finally, the folded headrest assembly, the leaning assembly, the cushion assembly and the supporting assembly can be folded along a folding line, the volume of the portable comfortable seat is further reduced, and the carrying convenience of the seat is greatly improved.

The utility model relates to the field of foundation pit support structure tests, and discloses a test device for simulating rock-socketed and stressed deformation of a foundation pit support structure, which comprises a flexible test element, a build-in part, a flexible water stop part and a retaining structure, the retaining structure and the flexible water stop part are respectively arranged at the upper end and the lower end of the build-in part, and the flexible water stop part is arranged at the lower end of the build-in part. The built-in part is provided with a movable part of which the height can be adjusted up and down for mounting the supporting and retaining structure, the flexible test element is laid on the surface of the supporting and retaining structure, the flexible test element can cooperatively deform with the supporting and retaining structure, and the flexible test element is used for collecting deformation data of the supporting and retaining structure. The supporting conditions under various geological conditions and foundation pit depths can be simulated by simply adjusting the bolt and the flexible water stop part, the test cost is effectively reduced, the test efficiency and the data accuracy are improved, and a reliable rock-socketed and stress deformation test scheme is provided for similar foundation pit supporting model tests.

The invention relates to a supporting optimization method for blocks disclosed in the excavation process of underground engineering, and is suitable for the technical field of surrounding rock stabilization of underground caverns and slope engineering. According to the method, the three-dimensional block body corresponding to the block body disclosed in the excavation process of the underground engineering and the space relation of the block body are determined through the position relation between the structural face and the excavation face of the underground engineering, then the first safety coefficient of the block body is determined on the basis of the space relation when the support is not arranged, and the support scheme is arranged when the first safety coefficient does not meet the requirement; and determining a second safety coefficient under the supporting condition, and adjusting the supporting scheme until the second safety coefficient meets the requirement, so that on the premise of meeting the design standard, the functions of parametric modeling and integrated analysis of the complex underground cavity three-dimensional block and rapid supporting design optimization are realized.

The invention discloses a hydraulic engineering stability optimization design system based on digital twinning, and relates to the field of hydraulic engineering design, comprising: decomposing a total design structure into at least one basic design structure; analyzing to obtain associated environment parameters of the basic design structure; predicting to obtain a change trend of the associated environment parameters; obtaining an estimated deformation proportion of the basic design structure according to the change trend of the associated environmental parameters; forming a deformation threshold value of the basic design structure, and forming at least one structure association position set; obtaining at least one safety point according to the estimated deformation proportion; and according to the distribution of the safety points, evaluating the overall condition of the structure association position set to obtain at least one potential safety hazard position. A parameter association module, a parameter prediction module, a deformation estimation module, an abnormity identification module and a design optimization module are arranged to analyze a support condition generated by deformation, and then targeted optimization is carried out at a potential safety hazard position.

The invention relates to the technical field of computers, in particular to an identification method, electronic equipment, a medium and a program product. In the method, when an application is started, the support condition of the locking application in the system service of the electronic equipment is judged, and a judgment result is stored in the form of a first identifier. Thus, in the running process of the equipment, whether the current electronic equipment supports running of the locking application or not can be quickly identified only by reading the first identifier each time no matter how many times the equipment switches the interface, so that the situation that much time is spent on checking whether the locking service exists or not from a large number of system services during interface switching each time is avoided, and the user experience is improved. And the operation performance of the equipment is improved.

The invention belongs to the technical field of medical instruments in the orthopedics department, and discloses a knee joint revision accessory system and a using method thereof.The knee joint revision accessory system comprises a femoral prosthesis extension rod assembly, a punching guider, a tibia supporting cushion block, a tibia guiding column, a centering drill, a depth limiting sleeve, a supporting platform and a flat head abrasive drill; the thighbone prosthesis extension rod assembly comprises a thighbone prosthesis and a first thighbone extension assembly, through cooperation of a trepanning guider, a centering drill, a depth limiting sleeve and a flat head grinding drill, and through depth limiting design and a guiding function of modular accessories, dependence on experience in an operation is reduced, accuracy of the implant position and depth of the prosthesis is ensured, deviation risks are reduced, and operation efficiency is improved. The tibial plateau supporting condition is improved through leveling treatment of the supporting cushion block and the flat head abrasive drill, in the 1.5-stage operation, periprosthetic joint infection, conversion operation and dislocation are low, prosthesis instability caused by bone defects is avoided, meanwhile, accurate bone treatment and stable prosthesis implantation are achieved, and the possibility of postoperative pain or infection or secondary revision is reduced.

The utility model relates to the technical field of mechanical claws, in particular to an aluminum part finished product transferring manipulator which comprises a rotating arm and a lifting clamping arm, and the lifting clamping arm comprises a cross arm, a mechanical claw, a sliding set and a driving rod. The lifting clamping arm is used for clamping finished aluminum parts formed through pouring and is driven by the rotating arm to rotate to the position above the conveying belt, the cross arm provides installation and supporting conditions for the mechanical claw, the mechanical claw is used for clamping the finished aluminum parts formed through pouring, and when the lifting clamping arm is used, a user starts the driving rod through the controller according to the height of the conveying belt; the driving rod stretches out and draws back to drive the sliding set to slide on the rotating arm, so that the height of the cross arm on the rotating arm is adjusted, the cross arm, namely the mechanical claw on the cross arm, is adjusted to the proper height on the conveying belt, and at the moment, a user compiles a control program to control the transferring manipulator to transfer finished aluminum parts. The problems that the aluminum piece finished product transferring height of an existing transferring mechanical arm is fixed and cannot be adjusted according to actual requirements are solved.

This invention proposes a balancing device for a screw feeder, which is achieved through the following technical solution: A dynamic balancing fixture is fabricated, and the screw feeder is separately mounted on the machine base using this fixture, ensuring that the bearings and other support conditions are essentially the same as during the overall machine assembly. A portable dynamic balancing instrument is used for data acquisition and analysis to adjust the calibration and testing quality until the vibration meets the acceptable standards.

The invention discloses a method for determining an end constraint constant of a structural rod piece. The method for determining the end constraint constant of the structural rod piece comprises the steps that a finite element model of a target structure is established; setting finite element unit attributes of the structural framework; modal analysis is carried out, and modal data of the target rod piece is extracted; selecting modal data to calculate a Rayleigh damping coefficient required by structural dynamic analysis; through transient dynamic analysis, a time travel curve of vibration of the target rod piece is obtained; the free vibration fundamental frequency of the target rod piece is obtained through Fourier transform; and through a structural rod piece vibration frequency calculation formula, an end constraint constant of the target rod piece is obtained through reverse deduction. According to the method for determining the constraint constant of the end of the structural rod piece, the constraint constant of the end of the structural rod piece under the complex supporting condition is obtained through numerical calculation and formula derivation, the value of the constraint constant of the end of the structural rod piece under the complex supporting condition is accurate, and the accuracy and rationality of a calculation analysis result are improved.