330 results about "Structural shapes" patented technology

The invention belongs to the field of ultrasonic oil film thickness measurement, and discloses a minimum oil film thickness calibration method considering different friction pair shape structures, which utilizes an ultrasonic oil film thickness calibration platform capable of designing a corresponding calibration test piece according to different structure shapes of a measured friction pair, and aims at the shape structure characteristics of different friction pairs. The minimum oil film thicknesses of friction pairs with different shapes and structures are accurately controlled, ultrasonic reflection signals under the different minimum oil film thicknesses are collected and subjected to frequency domain analysis processing, and on the basis, polynomial fitting is conducted on the minimum oil film thicknesses and reflection coefficients in combination with a film thickness calculation model; and the ultrasonic minimum oil film thickness calibration under a special friction pair structure is realized.

A method for training a shape optimization neural network to produce an optimized point cloud defining desired shapes of materials with given properties is provided. The method comprises collecting a subject point cloud including points identified by their initial coordinates and material properties and jointly training a first neural network to iteratively modify a shape boundary by changing coordinates of a set of points in the subject point cloud to maximize an objective function and a second neural network to solve for physical fields by satisfying partial differential equations imposed by physics of the different materials of the subject point cloud having a shape produced by the changed coordinates output by the first neural network. The method also comprises outputting optimized coordinates of the set of points in the subject point cloud, produced by the trained first neural network.

The invention discloses a spatial reticulated shell structure shape optimization method based on a genetic algorithm, and relates to the technical field of data processing, and the method comprises the steps: generating a structural force path topological knowledge graph based on node stress feature data, so as to extract feature vectors representing the integrity and coherence of a main bearing path of a structure; determining a key node disturbance sequence by taking the feature vector as input and the integrity and coherence of a main bearing path of the structure as a reward function, carrying out genetic algorithm coding on node coordinates, and obtaining an optimized position of a structure node through population iteration and fitness evaluation; a non-functional force path loss area in the structure is identified, the digital twin model is fed back and updated until the integrity and coherence of the main bearing path of the structure meet an optimization threshold value, and an optimized reticulated shell structure geometric shape is output; according to the method, accurate identification and disturbance optimization of the key nodes of the spatial reticulated shell structure are realized, so that the integrity and coherence of the main bearing path of the structure are remarkably improved.

An adaptive geometric modeling method for assembled thin-walled component structures oriented to integration of modeling, analysis and optimization, includes firstly, using a multi-level NURBS-based free-form deformation (MNFFD) technique to realize accurate geometric modeling of an assembled thin-walled component structure; secondly, establishing a modeling-analysis unified model suitable for isogeometric analysis of the assembled thin-walled component structure based on an MNFFD method; finally, establishing a modeling-analysis-design unified model suitable for collaborative design of a shape and a stiffened layout of the assembled thin-walled component structure based on the MNFFD method. The present invention fundamentally solves the modeling robustness problem of gaps and overlaps between thin-walled components due to the lack of accurate topological consistency in traditional modeling methods, provides a new tool for optimization design of engineering thin-walled structures. MNFFD is used, so that the geometric dimension reduction transformation from 3D design domain to 2D design domain can be realized.

According to the infusion driving mechanism and the infusion device, force generated during phase change of memory alloy serves as driving force, and the device is small in size and low in cost. The infusion driving mechanism comprises a screw rod, an indexing structure, a shifting structure and a shape memory alloy part, wherein one end of the screw rod is connected to the piston; the indexing structure is arranged on the screw and is coaxial with the screw; the stirring structure is connected with the shape memory alloy part, and the shape memory alloy part drives the stirring structure to move in the axial direction of the screw during phase change; the shifting structure is provided with a shifting part, the shifting part can make contact with one of the multiple protrusions on the indexing structure, and at the contact position, the shifting part is provided with an inclined face or the protrusions are provided with inclined faces, so that when the shifting structure moves in the direction parallel to the axial direction of the screw, inclined component force is generated, and therefore the shifting part can shift the one of the protrusions. The indexing structure rotates under the condition that the indexing structure is axially fixed, and then the indexing wheel drives the screw rod to rotate; the screw pushes the piston in the axial direction when rotating.

The invention relates to the technical field of fluid mechanics data processing, in particular to a construction method of a fluid mechanics simulation model applied to a fan. The method comprises the following steps: acquiring fan drawing information; the geometric structure of the fan drawing information is recognized, wherein the geometric structure comprises an air inlet and outlet, an air guide cover, an air guide direction rotating shaft and an air bag connector; judging the structural shape of the fan according to the air inlet / outlet and the air guide direction rotating shaft to obtain structural shape data; performing fan structure corresponding position identification on the wind scooper and the wind bag connector to generate structure position data; and constructing a fan structure model based on the structure shape data and the structure position data. Through the data processing technology and the analogue simulation technology, the fan fluid mechanics simulation model is constructed according to the fan application scene information, so that heat flow coupling vibration simulation and turbulent vortex separation phenomenon simulation of the fan are realized, and the accuracy and efficiency of fan simulation are higher.

The invention belongs to the field of ultrasonic oil film thickness measurement, discloses an ultrasonic oil film thickness calibration platform suitable for friction pairs with different structural shapes, and can finish true ultrasonic oil film thickness calibration of different friction pairs according to different design of a corresponding calibration test piece of the structural shapes of the measured friction pairs. The ultrasonic oil film thickness calibration platform comprises an upper beam, a side plate, a base, a structure-adjustable upper test plate, an oil groove, a structure-adjustable lower test plate, an ultrasonic probe tool, a nanometer displacement platform, a manual displacement platform, a pressure sensor, a manual platform adapter plate, a pressure sensor adapter plate and a probe tool gland. According to the ultrasonic oil film thickness calibration platform, the replaceable structure-adjustable upper test plate and the structure-adjustable lower test plate are designed and used for simulating the lubricating contact state of different bearing rollers and outer rings or other friction pairs with special shapes, and therefore ultrasonic oil film thickness calibration under a special structure is achieved.

The invention relates to a cable forming board (1) for the production of a cable harness (6) formed from individual wires (61) and / or wiring sets (62), wherein the cable formboard (1) is formed from a plurality of cable formboard segments (2) that can be arranged and / or fixed together, wherein a plurality of support elements (3) arranged movably and / or positionably on the cable form board segments (2) are provided for the production of a predetermined laying structure shape and / or conductor trajectory of the cable harness, wherein one or more of the support elements (3) have at least one protruding retaining element (31), furthermore, a drive system (4) is provided for moving and / or positioning the plurality of support elements (3) according to the predetermined laying structure shape and / or line trajectory, wherein the drive system (4) comprises a control unit (41) for controlling and / or regulating the movement and / or positioning of the plurality of support elements (3). Furthermore, the invention relates to a method for manufacturing a cable harness (6) formed from individual wires (61) and / or wiring sets (62).

The invention provides a device and method for integrally assembling complex structure external parts, the device comprises an axial positioning assembly, and a first positioning block, a second positioning block, a third positioning block and a fixing ring which are arranged on the axial positioning assembly, the fixing ring is used for being connected with a to-be-machined part, and the first positioning block, the second positioning block, the third positioning block and the fixing ring are arranged on the axial positioning assembly. The first positioning block, the second positioning block and the third positioning block are all used for positioning an external part, limiting plates or protruding blocks are arranged on the first positioning block, the second positioning block and the third positioning block, and selection of the limiting plates or the protruding blocks is based on the structural shape of a preset abutting area of the external part; according to the method, on the basis of the horizontal projection positions of the external part on the shell to be machined, the median of all the projection positions is selected as the distinguishing line, the corresponding first positioning block or fourth positioning block is matched for the external part on the basis of the distinguishing line for auxiliary positioning, and by selecting the positioning blocks of different structures, structural interference can be reduced; and meanwhile, more welding operation space for the surface of the shell to be machined can be provided.

The utility model belongs to the technical field of machining clamps, and particularly relates to a machining clamp which comprises a base table. The mounting disc is movably arranged at one end part of the base table; the self-locking adjusting component is arranged between the base table and the mounting disc and used for adjusting and moving the position of the mounting disc and achieving self-locking stability; the chuck mounting component is arranged on the mounting disc; the clamping head is arranged on the clamping head mounting component, and is used for solving the problems that an existing common machining clamp is relatively single in clamping structure shape and cannot adapt to clamping structures in different shapes, so that when the structures in different shapes are clamped, different clamps need to be replaced for clamping, and the use is very inconvenient.

The application discloses a steel structure roof sliding X-shaped jig frame and a jacking method thereof, which is in a whole butterfly shape, comprises two triangular sections arranged symmetrically and connected with each other, the structure shapes of the two triangular sections are completely same, and the two triangular sections are fixedly connected through connecting fixed points; and the jig frame is spliced by frame-shaped unit frames. The steel structure roof sliding X-shaped jig frame has a reasonable overall structure design, compared with a traditional flat plate structure, a notch is formed on the two sides of the moving direction, the hoisting of roof truss members on the jig frame can be greatly facilitated, and a clamping rod is avoided, which is a general type design and can adapt to the needs of different sliding directions, reduces the requirement for hoisting equipment under the prior art condition, reduces the cost, improves the work efficiency, meanwhile, the stability of the overall structure is good, the load bearing requirement for heavy roof trusses can be met, the contour is spliced by straight lines, the requirement for the splicing process is low, and the steel structure roof sliding X-shaped jig frame has a very good application prospect.

This invention relates to a four-medium combined rotary joint for a rotating drum, comprising a rotating drum part, a rotating shaft seat, and a fixed part. The rotating drum part includes a rotating drum connecting plate and a rotating drum connecting seat, with the left side of the connecting seat connected to the right side of the connecting plate. A bearing seat is sleeved on the outside of the right side of the connecting seat. The fixed part includes a water connector structure, a steam connector structure, an electrical connector structure, and an air connector structure. The water connector structure includes a shaft tube and a water screw connector, with the shaft tube passing through the connecting seat and the connecting plate from the right side and flush with the left side of the connecting plate. This four-medium combined rotary joint for a rotating drum, by creating perforations in the rotating drum part and designing the structure, shape, and position of the pipes in the fixed part, allows all four media to be delivered to the rotating drum, each successfully transmitted independently without interference or influence.

The utility model discloses an improved integral forming device for producing stainless steel profiles, which relates to the technical field of profile industrial processing equipment, and adopts the technical scheme that the improved integral forming device comprises a die front seat, an external profile die is mounted in the die front seat, and a die support is arranged on the right side of the external profile die; a die middle base is arranged on the right side of the die front base, a die tail base is arranged on the right side of the die middle base, an extrusion cylinder is installed on the left side of the die front base, the structural shape of the side, making contact with the die front base, of the extrusion cylinder is matched with that of the side, making contact with the die front base, of the extrusion cylinder, a cylindrical blank is arranged in the extrusion cylinder, and a dowel bar is arranged on the left side of the extrusion cylinder. In the prior art, a die front seat is of an integral structure, the contact part of the die seat and an extrusion cylinder is often collided, extruded and impacted and is easy to damage, the whole die seat needs to be replaced once the damage is caused, and the tool cost is higher. The die front seat is of a combined structure and comprises the outer ring and the inner ring, so that only a new inner ring needs to be replaced after the inner ring is damaged.

This invention discloses a lightweight design method for phased array antennas. The phased array antenna adopts a lightweight design approach, using a composite structure of a carbon fiber mounting frame and an aluminum honeycomb sandwich support plate for the load-bearing structure. This reduces the overall weight of the device while meeting load-bearing requirements. By rationally utilizing the structural shapes of the components, the discrete structural design is transformed into an integrated functional structure design. The component structure is designed as a long strip shape, and the front and back components of the load-bearing structure are arranged in a cross shape. This method improves the overall stiffness of the phased array antenna without increasing weight. The fundamental frequency of the phased array antenna is greater than 100Hz, effectively avoiding coupled vibration between the phased array antenna and the platform. The structural stiffness meets the requirements for mechanical environmental resistance design.

The invention discloses a stainless steel narrow-runner impeller casting runner inner cavity bleed-out foreign matter treatment method which comprises the steps that (1) a supporting tool is manufactured according to the structural shape and size of a narrow-runner impeller casting; (2) the narrow-runner impeller casting is placed on a supporting tool to be fixed, and the parts, except a runner inner cavity, of a mold shell in the narrow-runner impeller casting are cleaned; (3) the breakout foreign matter in the runner inner cavity of the narrow-runner impeller casting is subjected to electric welding treatment, and the small breakout foreign matter obtained after treatment is separated from a narrow-runner impeller casting body; (4) repeating the steps (2)-(3) until the bleed-out foreign matters in the inner cavity of the runner of the narrow-runner impeller casting are completely removed; and (5) the runner inner cavity of the narrow-runner impeller casting is sequentially subjected to smooth treatment and sand blasting treatment. The problem that the breakout foreign matter in the runner inner cavity of the high-strength stainless steel narrow-runner impeller casting is difficult to clean is solved, a solving thought is provided for cleaning the breakout foreign matter in the runner inner cavity of the narrow-runner impeller structure casting, and good application and popularization value is achieved.

The invention belongs to the technical field of narrow-band superposition random vibration, and particularly relates to a large-weight airborne equipment mounting structure resistant to fixed-frequency vibration. According to the structure, a fixing plate comprises a first transverse plate and a first vertical plate, the first vertical plate is provided with an outer edge matched with a machine body structure in shape, and the outer edge of the first vertical plate is connected with the machine body structure through bolts; the fixed beam comprises a second transverse plate and a second vertical plate, and the second vertical plate is connected with the machine body structure through bolts; the cross beam comprises an upper margin plate, a lower margin plate and a cross beam web connected with the upper margin plate and the lower margin plate, one end of the lower margin plate is connected with the first transverse plate through a bolt, the other end of the lower margin plate is connected with the second transverse plate through a bolt, and the upper margin plate is used for installing airborne equipment; the lug comprises an upper flange, a lower flange and a lug web connected with the upper flange and the lower flange, the lower flange is connected with the first transverse plate through a bolt, and the upper flange is used for mounting airborne equipment. According to the invention, the operation requirement of heavy-weight airborne equipment can be well met, and the narrow-band stacking random vibration environment requirement can be met.

The invention discloses a sound insulation and noise reduction decorative sheet, which comprises a soft marine phase structure and an island phase structure, wherein the soft marine phase structure takes 2-carbon, 3-carbon, 4-carbon and n-carbon elastomer / resin / rubber as a base material; the island phase structure takes natural or synthetic inorganic / organic filler or a mixture of the natural or synthetic inorganic / organic filler; the island phase structure filler is distributed and filled in the marine facies structure in different structural shapes, and a microstructure which reflects and absorbs sound waves for multiple times is formed between the island phase structure filler and the marine facies structure layer. The sound insulation coiled material has the beneficial effects that energy in noise is absorbed and converted into heat energy by utilizing the viscous damping effect of a soft high polymer material in the marine phase on sound waves, and the sound waves are reflected by a hard structure in the island phase, so that the noise is reflected and absorbed for multiple times in the micro island structure of the sound insulation coiled material, and the noise reduction effect is achieved; the problem that a traditional polyurethane sound insulation material needs to reach the thickness of 3-5 cm to achieve a good sound insulation effect is solved, and when the thickness is reduced to 2.5 mm, the good sound insulation effect can be achieved without causing space loss.

The invention provides a multi-spiral rigid foldable tubular structure which comprises a plurality of truncated cone units which are connected in the axial direction, and the lengths of adjacent side edges of the truncated cone units in the axial direction are unequal, so that the tubular structure formed by connecting the truncated cone units in the axial direction is spiral. The truncated cone units are provided with adjacent side edges with the same length in the circumferential direction so that the tubular structures of the truncated cone units can be folded in the circumferential direction. The head end of the tubular structure can be closed according to needs, the foldable characteristic of the tubular structure is not affected, the tubular structure can be connected through the side edges in the circumferential direction, the foldable tubular structure with the multiple channels is formed, the foldable tubular structure can be applied to the fields of aerospace, robots, building structures and the like, and the problem that in the foldable tubular structure with the bent axis, the foldable tubular structure cannot be folded easily is solved. The problems that the bent section folding tubular structure is complex in shape and limited in application field exist.

The utility model provides a machine head assembly and a humidifier, and relates to the technical field of electric appliances. The machine head assembly comprises a body, a mist outlet barrel and a holding structure, the mist outlet barrel is arranged on the body in a penetrating mode, a mist outlet is formed in the mist outlet barrel, and the mist outlet barrel protrudes out of the body in the axial direction of the body and faces the direction of the mist outlet, so that the top face of the mist outlet barrel is correspondingly higher than the top face of the body; the holding structure is arranged on the body in the axial direction of the body and faces the side of the mist outlet, and the holding structure is arranged outside the mist outlet cylinder in a surrounding mode. The part, exposed out of the body or protruding out of the body, of the mist outlet cylinder can serve as a handle, the structural shape of the holding structure is matched with the appearance of the mist outlet cylinder, the holding structure is not an obvious exposed handle structure in appearance, the overall appearance of the humidifier cannot be affected, the overall coordination consistency of the humidifier is guaranteed, and therefore the attractiveness of the humidifier is improved.

The utility model relates to a centrifugal stirring extraction tower device, which comprises a centrifugal component, an extraction tower top, a tower body part and an extraction tower bottom, and is characterized in that the centrifugal component is integrally arranged, and particularly the structure, shape, position relation and matching relation of a centrifugal inner component and a spacing ring plate are arranged; the extraction tower disclosed by the utility model has the advantages of high extraction efficiency, high liquid holdup, large specific surface area of the liquid drops and the like.

The invention relates to a disc-shaped suspension type reverse umbrella disc insulator and a manufacturing method. According to the novel technical scheme, the technical standard (figure 7) of the overall structure height H value is not changed, the limitation of the structural shape space of an existing disc-shaped suspension insulator (figure 2) is broken through, all umbrella discs of the umbrella disc face (1), the middle umbrella disc (2) and the lower umbrella disc (3) are changed into reverse umbrella discs, the height (figure 3) of the umbrella disc + column head (5) is 36%-40% lower than that of an existing umbrella disc + column head (figure 4), and the column head (5) of the umbrella disc is installed in a steel cap (10) to be connected. The steel foot (7) with the zinc sleeve (8) is inserted into the steel foot hole (6) of the umbrella disc face (1) to be connected, the connection relation is formed through solidification of the cement adhesive (4), the connection portion (12) of the steel cap (10), the steel foot (7) and the locking pin (9) is exposed, a novel specific structural shape (figure 1) is created, the technical effect of no shielding obstacles (figure 8) is achieved, technical defects are eliminated, the practical requirement is met, and the space margin of technical performance improvement is expanded.

Provided is a shape memory alloy (SMA) protective component for protecting structural or functional components in a robot apparatus and / or support structures the robot apparatus is mounted to. The protective component is generally disposed within a limb segment of a robot apparatus, between two joints / servos. According to some embodiments, the protective component is itself a limb segment, and two or more protective components can be connected at joints, like building blocks, to form the robot apparatus. The protective component includes one or more "smart" shape memory alloy structures that are deformable to shield / absorb external impacts and dissipate mechanical energy. The material of the shape memory alloy is conductive, flexible, and malleable such that it can be interwoven into a structural shape or pattern. After deforming from an impact, passing electricity through the shape memory alloy structure causes the structure to inflate / reform its original shape.

The invention discloses an oil-immersed transformer winding structure and a winding device, relates to the technical field of oil-immersed transformers, and aims to solve the technical problem that the functionality of a coil assembly of a traditional oil-immersed transformer winding structure is limited. And an upper clamping piece is arranged above the lower clamping piece through an iron core. According to the oil-immersed transformer winding, the insulating layer on the outer side of the coil assembly is subjected to wrinkle treatment, so that the oil-immersed transformer winding effectively adapts to the tension and the drawing force of the bending radian in the winding process when being wound on the iron core to be bent; in this way, the shape of the single coil assembly can be conveniently adjusted so as to adapt to coil assemblies of different structures and shapes. According to the mode, the coil assembly is preprocessed under the adaptation of a certain size specification, then adjustment is carried out according to the coil assembly of the actual specification of the needed oil-immersed transformer winding structure, meanwhile, wrinkle treatment is carried out in cooperation with an insulating layer on the outer side of the coil assembly in the adjustment process, and the situation that the insulating layer is damaged is reduced.

The invention provides a manufacturing method of a scaling test blade. The manufacturing method of the scaling test blade comprises the following steps: processing a first material into a cylinder to enable the cylinder to reach a preset size; the structural shape of the column body is adjusted; a beam cap groove is formed in the column body; the beam cap groove is filled with a second material; and carrying out curing treatment on the column body. The problem that in the prior art, the blade test difficulty of a fan is high is solved.

The utility model relates to the technical field of shield tunnels, in particular to an equipment box support suitable for a shield segment pre-buried positioning hole, which comprises two Z-shaped steel stand columns, the Z-shaped steel stand columns are matched with the shield segment in structural shape, long round holes are formed in the two Z-shaped steel stand columns, and the long round holes are communicated with the Z-shaped steel stand columns. The Z-shaped steel stand columns are fixed to reserved holes of the shield segment through chemical anchor bolts penetrating through the long round holes, the two U-steel cross beams are arranged between the two Z-shaped steel stand columns and connected with the two Z-shaped steel stand columns through fastening bolts, and the angle steel vertical beam is arranged between the two U-steel cross beams and connected with the two U-steel cross beams through fastening bolts. The device box support has the advantages that the stress form is simple, clear and reliable, the device box support is used in cooperation with a duct piece reserved positioning hole and adapts to shield tunnel construction errors, a device box of a conventional size can be installed at any position within a certain duct piece range, and the device box support is provided with teeth and tooth-shaped gaskets so that slippage can be effectively resisted.

The utility model discloses a tread pattern groove structure of a tire. The tread pattern groove structure comprises a plurality of first main pattern grooves and a plurality of second main pattern grooves, wherein the first main pattern grooves and the second main pattern grooves are circumferentially distributed on a tread; shallow pattern grooves are formed between the first main pattern grooves and the second main pattern grooves; a plurality of first curved shallow pattern grooves which are distributed in the circumferential direction are formed between the first main pattern grooves and the shallow pattern grooves; the first curved shallow pattern grooves are formed in the pattern blocks between the first main pattern grooves and the shallow pattern grooves; a plurality of second curved shallow pattern grooves distributed in the circumferential direction are formed between the shallow pattern grooves and the second main pattern grooves; the second curved shallow pattern grooves are formed in the pattern blocks between the second main pattern grooves and the shallow pattern grooves; the first main pattern grooves are in a linear shape, and the second main pattern grooves are in a broken line shape. The tread pattern groove with the structural shape not only has higher anti-sideslip capability and anti-straight-slip capability, but also greatly improves the working stability and safety of the tire.

The utility model discloses a shaping processing device for an air fiber automobile interior trim part buffer material product. The shaping processing device comprises a shaping plate, a shaping sleeve, a stamping and cutting device and a hot die forming device, wherein the shaping plate is arranged between the die head and the spinneret plate, a hollowed-out area profiling a projection outline B is machined in the middle of the shaping plate, and the projection outline B is a relatively complex projection outline perpendicular to the direction of the maximum visual surface A of the buffer material product; the shaping sleeve is arranged under the spinneret plate, the shape of the cross section of the shaping sleeve is similar to that of a hollow area on the shaping plate, and the profile of the shape of a cutting die of the stamping and cutting device is similar to the profile of the projection of the buffer material product in the direction of the maximum visual surface A; and the hot die forming device is used for carrying out die forming on the final product on the maximum visual surface A of the product in the direction perpendicular to the maximum visual surface A. The product prepared by the device meets the requirements of various seats with complicated structures and shapes on the structure, the shape outline and the surface quality of the air fiber material buffer material product.