679 results about "Structural integrity" patented technology

The invention relates to the technical field of pipeline detection, and particularly discloses a corrosion analysis method and device for gas pipeline integrity management and a medium. The method comprises the following steps: determining a key corrosion risk position; acquiring pipeline state data of the key corrosion risk position; analyzing the pipeline state data based on a preset corrosion prediction model to generate a corrosion degree; determining the residual strength of the key corrosion risk position based on the corrosion degree and the pipeline attribute data; and evaluating the structural integrity of the key corrosion risk position based on the residual strength, and generating a corrosion analysis result. Through corrosion degree analysis and structural integrity analysis of a key corrosion risk position, fundamental conversion from static general detection to dynamic fine detection is realized, a real high-risk position in a current state can be actively identified, the number of unnecessary excavation verification times is greatly reduced, and the construction efficiency is improved. And the maintenance cost is obviously saved, and secondary damage to the pipeline due to excessive detection is avoided.

The invention discloses a novel telescopic pipe structure of a high-temperature and high-pressure well and an optimal configuration method of a pipe column of the novel telescopic pipe structure, belongs to the technical field of oil and gas exploitation, and aims to solve the problem of buckling failure of the pipe column caused by piston force load of an existing telescopic pipe under high-temperature and high-pressure working conditions. The novel telescopic pipe is composed of an inner cylinder mechanism, an outer cylinder mechanism and a balance chamber mechanism. The inner cylinder mechanism and the outer cylinder mechanism are connected through threads, and structural integrity and reliable connection are guaranteed. The balance chamber mechanism comprises inner and outer pressure cavities and a hydraulic hole which are respectively communicated with the inner and outer pressure of the oil pipe to dynamically balance the piston force. The optimized configuration of the pipe column comprises the following three steps: S1, analyzing the mechanical behavior of the telescopic pipe column to provide a mechanical basis for configuration optimization; s2, the position of the telescopic pipe is designed, the well depth range where the telescopic pipe works is determined, and the optimal position is locked through iterative calculation; and S3, designing the number of the telescopic pipes, and determining the optimal number of the telescopic pipes meeting the compensation requirement. The stability of the high-temperature and high-pressure well pipe column can be remarkably improved, and technical support is provided for safe and efficient development of ultra-deep oil and gas wells.

Embodiments relate to an enhanced method for building walls by primarily reducing the time for assembly. The design is for a molded multi-segment plastic composite construction block that interlocks horizontally, vertically and orthogonally with a clearance-fit, does not require mortar for structural integrity and is self-aligning. The blocks are molded out of natural-fiber reinforced thermoplastic composites with thermal expansion coefficient less than 0.0002 per degree Celsius and compression strength greater than 60 MPa.

The utility model relates to the technical field of constructional engineering, and discloses a reinforced concrete structure impact-resistant protection device which comprises a main body, supporting columns are arranged on the two sides of the main body, a fixing plate is fixedly installed in the main body, a buffering plate is arranged on the outer wall of the main body, a bearing plate is fixedly installed at the bottom of the main body, and an adjusting frame is arranged on the inner wall of the main body. Limiting blocks are clamped in the adjusting frames, and inclined supporting rods are in threaded connection with the interiors of the limiting blocks. According to the impact-resistant protection device of the reinforced concrete structure, through cooperative arrangement of the main body, the supporting columns, the fixing plate, the buffer plate and the bearing plate, impact force and external force from different directions can be effectively resisted, it is ensured that the whole protection device is not prone to inclining or collapsing when being impacted, and the fixing plate is arranged in the main body; the shape and structural integrity of the main body can be better kept when the main body bears impact force, the main body is prevented from deforming due to external force, and therefore the reliability and durability of the whole protection device are improved.

The invention provides a phased array ultrasonic interface debonding detection method for a multilayer curved surface bonding structure, which comprises the following steps of: accurately calculating delay time of each array element in a phased array ultrasonic probe to a target focus by designing a delay block attached to a solid engine and aiming at a cylindrical special structure; therefore, in-phase superposition of sound waves at the target focus is achieved, focusing of sound beams is achieved, the problem of delay time calculation of sound waves emitted by all array elements of a phased array probe of a cylindrical structure is solved, and the problem of control over the deflection angle and the focusing depth of the sound beams synthesized after the sound waves pass through a plurality of curved surface interfaces is solved. Accurate positioning and visual representation of the debonding defect of the deep interface are realized. The technology provides a new technical means for accurately judging the interface debonding defect, and has important significance for guaranteeing the structural integrity and the use safety of the interface debonding defect.

The invention belongs to the technical field of aircraft structure design, and discloses a fuselage frame preparation process and a fuselage frame. According to the fuselage frame preparation process, preparation of the first woven preformed body and the second woven preformed body is achieved through the weaving operation of the weaving machine, the preparation efficiency and the structural integrity of the first woven preformed body and the second woven preformed body are improved, and the influence of manual operation on the fuselage frame forming quality is avoided. The preparation of the first weaving body and the second weaving body is realized by cutting operation of cutting guide parts arranged on the first weaving auxiliary core mold and the second weaving auxiliary core mold in advance, so that the preparation precision is guaranteed, and the forming quality of the fuselage frame is improved. The invention further provides the machine body frame, the machine body frame is prepared through the machine body frame preparation technology, the manual operation participation degree is reduced in the machine body frame preparation process, the influence of manual operation errors on the forming quality of the machine body frame is avoided, the forming quality and forming efficiency of the machine body frame are improved, and the manual labor intensity is relieved.

This invention discloses a laser welding clamping device, relating to the field of welding clamping technology. It includes a cover plate, a double-free intermediate fixing member, an elastic telescopic block, a push rod, a telescopic block, and a rack. The cover plate is slidably mounted on the top of the frame. The fixed end of the double-free intermediate fixing member is fixedly mounted on the top of the cover plate. The elastic telescopic block is fixedly mounted on the free end of the double-free intermediate fixing member. The push rod is rotatably mounted on the end of a rotating plate near the elastic telescopic block. The fixed end of the telescopic block is fixedly mounted on the top of the welding device. When the elastic telescopic plate moves, it squeezes the internal welding parts. When clamping thinner workpieces, the elastic telescopic plate can absorb part of the clamping force through its own elastic deformation, preventing deformation, indentation, or damage to the thin workpiece due to excessive driving force of the telescopic device, thus ensuring the structural integrity of the thin workpiece during clamping.

A system to monitor integrity of structures and / or other structures by monitoring vibrations.

The invention provides a vacuum circuit breaker running-in test bench, and relates to the technical field of circuit breaker running-in. The adjusting assembly is used for adjusting force and displacement generated by vibration of the circuit breaker in the running-in process; when the circuit breaker vibrates left and right, the push rod provides a reverse buffering force according to a force generated by the left and right vibration of the circuit breaker, so that the circuit breaker is kept in a stable state; the buffer assembly is used for buffering vibration of the circuit breaker in the running-in process; when the circuit breaker vibrates up and down, the buffer is used for preliminarily buffering force generated by the up and down vibration in the running-in test of the circuit breaker; the rotating frame is used for adjusting the angle of the adjusting assembly to adapt to circuit breakers with different mounting angles; the device is graded layer by layer, so that the vibration energy of the circuit breaker is consumed layer by layer in the running-in process, the structural integrity and the performance stability of the circuit breaker are kept in a continuous vibration environment, and the scientificity of a test and the durability of equipment are remarkably improved.

The invention relates to the technical field of water conservancy facility construction monitoring, in particular to a risk early warning method and system based on construction site multi-modal data driving. Structure stress monitoring data and water flow field change data of the water conservancy facility in the construction process are imported into a stress vibration danger analysis strategy for stress vibration danger analysis; the operation state risk of the construction equipment, the stress vibration dangerous state of the water conservancy facility under the change of the water flow field and the construction position data of the construction equipment are imported into a construction dangerous position analysis strategy for construction dangerous position analysis in the next construction stage; based on the dangerous position identification of the water conservancy facility construction site in the next construction stage, a dangerous position reinforcing scheme is obtained. Therefore, safe and stable operation of equipment is ensured; the accident risk caused by structural instability and water flow impact is reduced, and the integrity of the facility structure is guaranteed.

The invention relates to an integrally-formed hollow-structure Pick racket and a preparation method thereof, and belongs to the technical field of Pick rackets. The hollow cavity shell is filled with the foam core layer, an opening is formed in the hollow cavity shell, and the foam core layer is obtained by conducting heat treatment foaming on a foaming raw material; the method further comprises the following steps that an integrally-formed hollow cavity shell with an opening is obtained through a blow molding technology; the hollow cavity shell is filled with foaming raw materials; the filled hollow cavity shell is subjected to heat treatment, so that the foaming raw materials are foamed, expanded and fused in the shell, and a foam core layer tightly combined with the shell is formed; according to the Pick racket, an adhesive interface existing in a traditional spliced racket is structurally and thoroughly eliminated, the risk of adhesive failure and layering after long-term use or damp is fundamentally avoided, the structural integrity of the racket is greatly improved, and the durable life of the racket is greatly prolonged.

The invention relates to the technical field of bridge construction monitoring, and discloses a bridge construction crack dynamic detection method and system based on AI visual identification. According to the method, pixel-level time domain and space domain feature separation and fusion are carried out by analyzing an obtained multi-frame continuous image sequence, a target structure feature map fused with spatio-temporal context information is generated, and a potential crack region is positioned according to the target structure feature map. And constructing a region evolution model by analyzing a pixel intensity multi-direction discrete change rule of the candidate region, and outputting quantitative description of a crack growth trend by using a crack growth prediction model. And a structural integrity dynamic score is generated through comprehensive growth trend and multi-scale texture analysis, and real-time detection and evaluation of the crack are achieved. According to the method, the accuracy and robustness of crack detection in a complex construction environment are improved, and the dynamic development trend of the crack can be effectively predicted.

The utility model relates to the technical field of polyethylene pipe processing, and discloses a storage device for polyethylene pipe processing, which is provided with a supporting device and an auxiliary mechanism, the supporting device is used for storing polyethylene pipes, and the auxiliary mechanism is used for guiding the polyethylene pipes to be discharged. The problems that at present, a traditional storage mode adopted by most factories for the polyethylene pipes is simple stacking or linear arrangement, the mode has many defects that firstly, due to the fact that the lengths of the polyethylene pipes are inconsistent and the diameters of the polyethylene pipes are different, the traditional stacking method is prone to causing pipeline deformation, and especially when the polyethylene pipes are stored for a long time or improperly carried, the pipeline is not prone to deformation are solved. The problems that the appearance quality of a product is damaged, the integrity of the internal structure of the product is possibly influenced, and in addition, no appropriate supporting and fixing measures exist, so that the pipeline is prone to rolling or sliding off in the storing and taking process, the risk of accidents is increased, and potential safety hazards are brought to operators are solved.

An adjustable automobile subframe alignment fixture for inspecting a subframe includes one or more bases; one or more rails, connected to the one or more bases, having indexing positions to accommodate multiple sized subframes; and one or more connection points, adjustably mounted on the one or more rails, configured to receive risers and / or jigs for adjusting to a geometry of the subframe and allowing structural integrity of the subframe to be determined. If the geometry of the subframe matches the geometry of the fixture, the subframe is structurally sound. If the geometry of the subframe fails matches the geometry of the fixture, the subframe lacks structural integrity.

The utility model discloses a hydraulic engineering pipeline reinforcing structure, which relates to the technical field of hydraulic engineering, and comprises two support frames, one side of each support frame is provided with an expanding ring assembly, and each expanding ring assembly comprises a mounting side frame, a first bevel gear, a second bevel gear, a mounting ring, a screw rod, a driving block, a sliding block, a sliding rail and an expanding ring plate. One end of the first bevel gear is rotationally connected to the middle of the mounting side frame. According to the pipeline gap filling device, the pipeline gap filling baffle is driven by the ring expanding assembly to be gradually close to a damaged opening in a reinforced concrete pipeline and abut against one side of the damaged opening, the pump machine pumps a bonding repairing agent into a closed space between the pipeline gap filling baffle and the damaged opening, the gap is filled with the bonding repairing agent, and the repairing effect is achieved. And the pipeline gap filling baffle is adhered to the inner wall of the reinforced concrete pipeline, so that the purpose of repairing and processing is achieved, the structural integrity of the pipeline is quickly recovered, and the strength and durability of the pipeline are improved.

The utility model discloses an anti-collision device based on low-temperature steel cylinder transportation, and relates to the technical field of low-temperature steel cylinder transportation. Comprising a tank body, a protection device is arranged outside the tank body, and an adjusting device is arranged inside the protection device; according to the self-centering closed-loop locking device, the adjusting device is arranged to fix the steel cylinders with different sizes, the inner circular ring is driven to rotate in the circumferential direction to be linked with the top clamping rod set to achieve self-centering closed-loop locking in cooperation with two-way stirring driving of the locking mechanism, the structural integrity of the inner wall is effectively protected, and meanwhile the fixing requirements of the steel cylinders with different specifications can be met; and by arranging a protection device, when the low-temperature steel cylinder is installed and transported, a buffer spring arranged in a protection plate forms a buffer mechanism, and when continuous extrusion loads are coped, the contact pressure can be reduced, the surface of the cylinder body is effectively prevented from generating plastic deformation, and the anti-collision protection effect on the low-temperature steel cylinder in the cylinder body is achieved.

The invention belongs to the technical field of building material preparation, and particularly relates to a large-volume ultra-high performance concrete block construction method which comprises the following steps: S1, block design and post-cast strip arrangement based on temperature control; s2, a formwork is installed; s3, binding reinforcing steel bars and reserving connecting ends; s4, arranging a thermal insulation layer; s5, concrete pouring; s6, intelligent temperature control maintenance; s7, low-shrinkage post-cast strip pouring is conducted; and S8, removing the template. According to the partitioning construction method, through scientific partitioning design, interface strengthening and intelligent temperature control, the temperature crack risk of the large-size UHPC is remarkably reduced, the structural integrity and durability are improved, and meanwhile the construction efficiency is optimized.

The application discloses a left-right splicing type motorcycle control method and system based on rigid connection. The scheme proposes a rigid-flexible integrated construction method, and a flexible control system is constructed on a rigid truss. The rigid truss guarantees the structural integrity of the vehicle body and the conduction of force, the Ackermann geometry correction model is used to correct the Ackermann geometry relationship, the sensor data is used to correct the steering angle and driving torque in real time, the dynamic weight model is used to predict the controller to coordinate the steering and torque distribution of the two sides of the wheel, and the steering error, the vertical vibration error and the slip rate error are optimized, so that the multi-objective cooperative control problems such as load transfer, vertical disturbance, differential constraint and steering stability are solved. The application takes into account the overall structural rigidity and the control system flexibility, can effectively suppress the slip and vibration caused by the road disturbance, significantly improve the response speed and precision of steering and driving, and ensure the stability and safety under complex road conditions.

1. Name of the product in this design: Column (I). 2. Purpose of this design: It is used as a column in a building to provide support and enhance the overall structural integrity. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Design 1 is designated as the basic design.

The application discloses a seven-layer gradient function composite repairing construction method for concrete freeze-thaw damage, and the method comprises the following steps: investigating a freeze-thaw damage area, determining damage depth and range, removing all loose, peeled and cracked concrete by using mechanical tools until the base surface is exposed, carrying out rust removal and corrosion prevention treatment on the exposed steel bars, cleaning the interface by using high-pressure water jet, removing dust and debris, and coating, in sequence, a primer, anti-freezing repair mortar, nano-enhanced coating, cement-based anti-freezing, waterproof and corrosion-proof protective coating, alkali-resistant sealing primer and protective coating on the base surface, wherein the protective coating is coated in two layers, the damaged base body is reconstructed in a gradient mode, the structural integrity is restored, a long-acting protection system with the functions of active protection and passive barrier is constructed from inside to outside and with gradient transition of material properties, and the service life of the repaired structure in an extreme environment is significantly prolonged.

The invention relates to the technical field of airplane composite material manufacturing, in particular to a forming method of a cover body part with a sunken opening frame, which comprises the following steps: designing an insert structure with a positioning reference and airtight guarantee, designing a prepreg directional paving and sunken reinforcing layer, carrying out a segmented temperature control curing process, integrating a demolding auxiliary structure and carrying out whole-course airtight detection integration. According to the method, follow-up machining and assembling procedures are not needed, the production period is remarkably shortened by 60% or above, the manufacturing cost is reduced by 40% or above, the dimensional tolerance of parts is controlled within + / -0.03 mm, the tensile strength is larger than or equal to 1500 MPa, the problems that in a traditional technology, accumulated errors are large, and structural integrity is damaged are effectively solved, and the method is suitable for batch production of aircraft composite material cover bodies and similar complex structural parts.

The invention relates to a variable cross-section underground diaphragm wall structure and a construction method, the variable cross-section underground diaphragm wall structure comprises an upper thin-wall diaphragm wall structure, a middle thick-wall diaphragm wall structure and a lower thin-wall diaphragm wall structure, and the upper, middle and lower diaphragm wall structures with different thicknesses are designed into the integral variable cross-section underground diaphragm wall structure through reinforcement cages in different forms. By adopting the variable cross-section underground diaphragm wall structure, the wall sections with different thicknesses at the upper part, the middle part and the lower part are connected into a whole through the integral reinforcement cage design, so that the material consumption is optimized, and the integrity and the stress performance of the structure are ensured. The structure is suitable for the deep foundation pit and the special working condition adjacent to the existing diaphragm wall, by arranging the thick-wall wall section in the key stress area of the newly-built foundation pit support, the anti-upheaval and anti-seepage stability of the pit bottom is effectively improved, and unnecessary material waste is reduced through the thin-wall design of the upper ground wall and the lower ground wall.

The utility model relates to plywood technical field, concretely relates to a high -strength plywood with two -way deformation resistance structure, including hetero -directional reinforcing core layer, self -compensating expansion joint, wood veneer, high temperature resistant resin adhesive and surface reinforcing layer, the hetero -directional reinforcing core layer adopts the wood veneer mixed layer of two -way corrugated groove slant stripe directional paving, and the grid interlocking structure is formed through laser cutting process. The utility model through hetero -directional reinforcing core layer and multilayer wood veneer form firm combination through high temperature resistant resin adhesive, and the gradient enhancement design and the edge sealing structure of surface reinforcing layer provide comprehensive protection, and the flexible transition characteristic of transition buffer zone ensures the stress effective transmission and dispersion between each structure layer, not only significantly improved the two -way mechanical property balance and size stability of panel, also endows it with excellent temperature adaptability, edge sealing and overall structural integrity, makes it can adapt to the use requirement under various complex environment.

This utility model discloses a steel structure house assembly and connection component, relating to the field of steel structure house assembly and connection technology. It includes a first steel beam, a second steel beam, and screws. A top plate and a movable frame are provided in the middle of the first steel beam, with the top plate located on one side of the movable frame. The steel structure house assembly and connection component of this utility model uses a nut and screw threaded connection to firmly connect the first and second steel beams together without the need for welding, resulting in high efficiency. During disassembly, unscrewing the nut and pulling out the screw allows for rapid separation of the first and second steel beams due to the elasticity of the spring. The first and second steel beams have identical structures and are interconnected. This connection method enables rapid assembly and disassembly of steel structure house components, facilitating later modifications or maintenance, without compromising the structural integrity, resulting in lower repair costs, and ensuring a strong connection, making it highly practical.

The invention provides a structure for improving wafer scribing reliability. The structure includes a chip region, adjacent scribe lanes, a seal ring within the chip region adjacent the scribe lanes, and a passivation layer covering these regions. The key point is that in the passivation layer, a passivation layer slot is formed between the sealing ring and the scribing channel, and a first safety distance and a second safety distance are respectively defined between the slot and the sealing ring as well as between the slot and the scribing channel. The groove of the passivation layer can release or buffer the generated mechanical stress in the subsequent scribing process and effectively prevent the mechanical stress from being destructively transmitted to the sealing ring and the internal area of the chip, so that the defects of edge breakage, cracks and the like caused by scribing are remarkably reduced, and the structural integrity and the packaging yield of the chip and the long-term reliability of a final product are improved.

The invention discloses a UHPC (Ultra High Performance Concrete) composite structure for repairing bridge deck pavement diseases and a construction method, and aims to solve the technical problems of poor durability, insufficient bearing capacity and the like generally existing after the existing bridge deck pavement pit slot diseases are repaired. The method comprises the core technical links of bridge deck pavement milling, drilling and steel bar planting, steel bar mesh installation, UHPC mixing, pouring, maintenance and the like. By adopting a composite structure composed of the UHPC120 concrete and the asphalt concrete surface layer and matching with the reinforced connection design of the HRB400-grade twisted steel mesh and the implanted erection steel bars, the bonding strength between the repairing layer and the original bridge deck concrete pavement layer is effectively improved, the structural integrity and the anti-cracking performance are enhanced, and the service life of a bridge is remarkably prolonged. The technology is suitable for repairing bridge floor cavities, pit slots and other diseases of various types of bridges, and has wide engineering application prospects.

The invention provides a hierarchical mixture design index and optimization method according to functional requirements of different pavement layers (a surface layer, a middle surface layer and a lower surface layer) in combination with climate zoning and traffic load characteristics. According to the method, key mechanical parameters (the dynamic stability of a surface layer is greater than or equal to 6000 times / mm, and the low-temperature bending strain of a lower surface layer is greater than or equal to 2500 mu epsilon) are determined according to the horizon function, and then the mineral aggregate gradation and the special asphalt dosage are optimized through coupling analysis of volume parameters (the void ratio is 3%-5%, and the mineral aggregate void ratio is greater than or equal to 17%) and mechanical properties. And meanwhile, a bonding layer interface shear strength test (greater than or equal to 1.2 MPa) is introduced, so that the structural integrity is ensured.

The utility model relates to the technical field of composite material preparation, in particular to a thin-wall composite material plate structure with a hollow runner inside, which is formed by co-curing an upper composite material panel, a lower composite material panel and a runner layer clamped between the upper composite material panel and the lower composite material panel through resin, the problems that in a traditional technology, a flow channel is prone to being blocked, and interface bonding is weak are solved, and the heat pipe has the advantages of being good in structural integrity, excellent in sealing performance, light in weight and high in strength and is particularly suitable for heat management structural parts in the fields of aerospace, new energy automobiles, high-end equipment and the like.

The invention belongs to the technical field of grid structures, and discloses an inner ring reticulated shell structure and welding auxiliary equipment thereof, the inner ring reticulated shell structure comprises a transverse arc-shaped rod body and a longitudinal arc-shaped rod body, the axis of the transverse arc-shaped rod body is vertical, and the arc extension track of the transverse arc-shaped rod body is distributed in the horizontal direction; the axis of the longitudinal arc-shaped rod body is horizontal, the arc extending track of the longitudinal arc-shaped rod body is distributed in the vertical direction, and the extending track of the longitudinal arc-shaped rod body is perpendicular to the extending track of the transverse arc-shaped rod body. The number of the transverse arc-shaped rod bodies and the number of the longitudinal arc-shaped rod bodies are both multiple, the two ends of each transverse arc-shaped rod body are connected with the two adjacent longitudinal arc-shaped rod bodies respectively, and the multiple transverse arc-shaped rod bodies and the multiple longitudinal arc-shaped rod bodies jointly form an alms-bowl-shaped structure used for reinforcing the historic building. On the premise that the integrity of the original structure of the ancient building is not damaged, the overall stability and deformation resistance of the ancient building are remarkably improved, and the targeted reinforcing and protecting effect is achieved.

The invention relates to the technical field of linkage machining tools, in particular to a precise multi-axis linkage machining tool for cooling fin production. The driving mounting assembly comprises multiple sets of L-shaped transmission plates which are arranged above the bottom plate in a linear array mode, long plates are fixedly mounted at the lower ends of the multiple sets of L-shaped transmission plates, transmission connectors are fixedly mounted on the opposite sides of the long plates, and elastic clamping plates are rotationally mounted in the transmission connectors; and first springs are symmetrically mounted between the elastic clamping plate and the long plate. Through the cooperative elastic effect of an elastic clamping plate and an opening plate in the driving installation assembly, the distance between welded fins is actively expanded when the tail end fins are welded, the industrial problem that a welding gun cannot stretch into a narrow gap for welding due to insufficient space is effectively solved, meanwhile, the structural integrity of the fins can be kept through an elastic expansion mechanism, and the welding efficiency is improved. The whole circulating airflow of the finned tube is not damaged, and the heat dissipation performance is optimized.