144 results about "Mechanical reliability" patented technology

The invention provides a crown assembly and wearable equipment, the wearable equipment comprises the crown assembly, the crown assembly comprises a key cap and a key rod, the key cap comprises a first top plate and a first side plate, and the first side plate and the first top plate define a key cap groove; the key rod comprises a rod body and a rod connecting part; the rod body comprises a first end and a second end, the rod connecting part comprises a second top plate and a second side plate, the first end of the rod body is connected to the second top plate, and the second side plate and the second top plate define a key rod groove; the key rod is partially located in the key cap groove, and the key rod groove and the key cap groove are in the same direction. In the application, the key cap and the key rod in the crown assembly are separately and independently arranged, and the key cap and the key rod can be made of different materials, so that the crown assembly can present any color, the mechanical reliability of the crown assembly is ensured, and the balance between the appearance and the mechanical performance is realized.

The invention discloses a socket with safety protection. The socket comprises a multi-mode thermal sensing array, and a fusion array of a miniature infrared thermal imaging sensor array and a distributed fiber grating temperature sensor which are integrated at key points in the socket; according to the active locking mechanism based on the thermal deformation prediction model, a micro servo motor, a ball screw, a pre-tightening spring and a spring bolt form an electronic lock, a shape memory alloy wire is used for rapid and silent emergency unlocking, and the micro servo motor is used for high-precision conventional locking; the dynamic thermal safety boundary algorithm module is used for dynamically calculating the optimal temperature upper limit and the optimal power upper limit of each component in the current state according to factors such as a real-time temperature field, predicted thermal deformation, current charging power and historical charging data; the main controller is used for transmitting a large amount of real-time temperature field data. Through multi-mode sensing, predictive modeling and master-redundancy cooperative execution, thermal safety and mechanical reliability of the charging interface under extreme working conditions are guaranteed.

The invention discloses a CuCr contact and a preparation method thereof, and belongs to the field of alloy contact manufacturing, the CuCr contact is divided into an arc contact area, a transition area and a conductive connection area, and the Cr content of each area is in gradient distribution and is sequentially reduced, so that interface stress concentration can be avoided, and the structural compatibility and mechanical reliability of the whole contact are improved; meanwhile, integrated forming is achieved through the 3D printing technology, the size and the component boundary of each area can be accurately controlled, the complex structure design requirement of the contact is met, and the problems that in the prior art, performance gradient cannot be achieved according to the function requirements of different parts of the contact, and the material utilization rate is low are solved; the printed contact does not have the phenomena of composition segregation, agglomeration, uneven pores and the like, and the problems that in the prior art, Cr elements are difficult to distribute uniformly in a Cu matrix, Cr particles are prone to segregation and agglomeration, local ablation resistance is insufficient, and burning resistance is low are solved.

Aspects disclosed include an integrated circuit (IC) package comprising a substrate and a solder joint coupled to a corner interconnect structure of the substrate to improve the reliability of the package. Related apparatus and methods are also disclosed. The substrate includes the corner interconnect structure in a corner of the substrate. The corner interconnect structure includes a first metal interconnect adjacent to the corner of the substrate and a plurality of second metal interconnects adjacent to the first metal interconnect. The IC package includes a solder joint coupled to at least two of the metal interconnects in the corner interconnect structure improving the mechanical reliability of the IC package. In so doing, a plurality of third metal interconnects adjacent to the corner interconnect structure may be utilized for input / output (I / O) communication paths increasing the input / output of the IC package without growing the size of the package.

The invention discloses a spatial gear transmission system reliability evaluation method fusing failure physics and degradation data, and belongs to the technical field of mechanical reliability engineering and fault prediction. The method aims to solve the problem of reliability evaluation of the spatial gear transmission system under the conditions of extreme environment, small sample, multi-failure mode coupling and significant individual difference. The method comprises the following steps: firstly, establishing a gear dynamics model considering nonlinear excitation to obtain dynamic meshing force; then, respectively constructing wear and fatigue degradation models based on failure physics; then, introducing an inverse Gaussian random process considering individual differences to carry out single failure mode reliability modeling; and finally, a Copula function is utilized to construct a binary correlation competition failure model, and system-level reliability comprehensive evaluation is realized. Through the technical route of physical mechanism driving, uncertainty quantification and data statistics fusion, a complete evaluation system is formed, and key technical support is provided for on-orbit health management and life prediction of the space gear transmission system.

The utility model discloses an auxiliary scanning positioning device which is used for being connected with a conveying device, the conveying device comprises a machine frame and two carrier roller assemblies, the two carrier roller assemblies are arranged in a spaced mode, are both connected to the machine frame and are used for conveying a steel rail in the designated direction, and the auxiliary scanning positioning device comprises a calibration body and a supporting assembly. The calibration body is used for being spaced from the carrier roller assembly and can be connected to a rack, the calibration body is provided with a fixed channel and a plurality of calibration points, the calibration points are distributed in the circumferential direction of the fixed channel, the supporting assembly comprises a supporting piece, and the supporting piece is used for being connected with the rack and can rotate relative to the calibration body. A calibration channel for a steel rail to pass through is formed between the supporting piece and the inner wall of the fixed channel. According to the utility model, the problem that the mechanical reliability of the shear-type mechanism is easily reduced and detection errors are caused because the gravity of the steel rail is transmitted to the shear-type mechanism through the calibration plate can be effectively solved.

The invention discloses a PTC ceramic material and a preparation method thereof, and relates to the technical field of PTC, and the PTC ceramic material is prepared from the following components: 50-65 parts of barium titanate, 12-16 parts of lead tetraoxide, 0.1-0.3 part of yttrium oxide, 0.1-0.3 part of lanthanum oxide, 6-15 parts of modified silicon boride, 4-10 parts of aluminum oxide, 1-3 parts of ammonium polyacrylate, and 3-6 parts of polyvinyl alcohol. Through synergistic cooperation of a barium titanate main body and functional fillers such as modified silicon boride, leap-type improvement of the comprehensive performance of the PTC ceramic material is realized, on the basis of maintaining excellent PTC characteristics, the heat conductivity coefficient and the breaking strength of the material are effectively improved, the thermal shock resistance and the mechanical reliability are remarkably enhanced, and the PTC ceramic material has good application prospects. The method is especially suitable for the high-end application fields of automotive electronics, industrial control, high-power LED driving and the like.

The invention belongs to the related technical field of high-speed disc type permanent magnet motors, and provides a high-speed disc type permanent magnet motor and a hybrid magnetic excitation composite rotor preparation method in order to solve the problem that an existing high-speed disc type permanent magnet motor cannot fully utilize the mechanical property of a composite magnetic material. The high-speed disc type permanent magnet motor comprises a stator core, a winding and a hybrid magnetic excitation composite rotor. The hybrid magnetic excitation composite rotor is composed of a sintered permanent magnet, a composite magnetic material, a rotor support and a magnetic isolation circular ring. The sintered permanent magnet is arranged in the rotor support, the composite magnetic material winds the rotor support, the composite magnetic material and the sintered permanent magnet are combined, and by means of the high tensile strength characteristic of the composite magnetic material, the outer diameter of the sintered permanent magnet is shortened, and the outer diameter linear speed of the sintered permanent magnet is reduced; the composite magnetic material provides radial pre-tightening force, and the mechanical reliability of the hybrid magnetic excitation composite rotor under high-speed rotation is improved.

The invention relates to the technical field of aerogel materials, in particular to a carbon-rich SiC-coated Si3N4 double-network aerogel and a preparation method thereof. The double-network aerogel comprises an inner framework and an outer framework, the inner framework is a SiC network, the outer framework is a Si3N4 network, the double-network aerogel is formed by interweaving the SiC network and the Si3N4 network, the SiC network and the Si3N4 network are rich in in-situ carbon, and the content of the in-situ carbon in the Si3N4 network is far smaller than that of the in-situ carbon in the SiC network. The aerogel disclosed by the invention successfully integrates multiple key properties, wherein high porosity and low thermal conductivity ensure excellent thermal insulation capability; the reflection loss reaches-60dB to the minimum, and the effective absorption bandwidth reaches 5GHz, so that the excellent broadband wave-absorbing performance is proved; the compressive strength of the material can reach 14 MPa or above, excellent mechanical reliability is shown, and an ideal solution is provided for electromagnetic protection and thermal management of high-end equipment.

The invention provides a shielding cable and application thereof, the shielding cable comprises an insulation wire group and a composite shielding layer wrapping the insulation wire group, the composite shielding layer comprises a conductive metal belt layer and an elastic conductive composite material layer wrapping the conductive metal belt layer through a hot pressing composite technology, a nanoscale conductive layer is arranged on the surface of the conductive metal belt layer; the elastic conductive composite material layer comprises a polymer matrix and a nano conductive material dispersed in the polymer matrix; through collaborative design of the conductive metal belt layer and the elastic conductive composite material layer, high-frequency shielding performance breakthrough is realized, SE attenuation rate after damp-heat aging is reduced, mechanical reliability is improved, conductivity, shielding performance, mechanical strength and environmental adaptability of the cable are comprehensively improved, the service life of the cable is prolonged, and the service life of the cable is prolonged. And the maintenance cost is reduced.

The invention discloses a whisker-reinforced composite porous ceramic material as well as a preparation method and application thereof, which are based on a new process of combining silicon carbide and cordierite and are combined with factors such as silicon carbide particle size and sintering conditions to really realize effective combination of low thermal expansion characteristic of cordierite and high strength characteristic of silicon carbide. The invention aims to synchronously improve the thermal shock resistance and mechanical bearing capacity of a product so as to provide a DPF filter body material with better performance. Furthermore, in order to optimize the filtering performance, mullite whiskers grow in the composite matrix in situ, and a more efficient particulate matter trapping network is constructed, so that the mechanical reliability, the thermal stability and the filtering efficiency are synergistically improved.

The invention provides an alloy solder and a solder ball. The alloy solder comprises the following components in percentage by weight: 1.0 to 5.0 weight percent of silver, 0.01 to 1.0 weight percent of copper, 0.01 to 1.0 weight percent of nickel, 0.005 to 0.015 weight percent of germanium, 0.05 to 1 weight percent of bismuth, 0.01 to 1.0 weight percent of indium and the balance of tin. The silver can significantly improve the heat-resistant cycle performance and adjust the melting point characteristic. The copper can improve the wettability of the alloy. Nickel can restrain overgrowth of intermetallic compounds on a welding spot interface, and the mechanical reliability of the welding spot is improved. And germanium can improve the oxidation resistance. Bismuth can maintain high shearing force, and meanwhile, the tensile strength and the yield strength of a welding spot are remarkably improved. The indium can improve the toughness of the solder and the binding force of the interface IMC. According to the alloy solder, the alloy variety and content are controlled within the range, and the heat-resistant cycle performance and reliability of the alloy solder can be improved.

The invention relates to the technical field of particle accelerators, and provides a medium-assisted acceleration structure and method for realizing low loss and high acceleration gradient by using a low-temperature environment. The structure comprises a medium-assisted acceleration structure body and a low-temperature maintenance and control system, the medium-assisted acceleration structure body comprises a medium layer and a metal cavity to provide electromagnetic field distribution, and the low-temperature maintenance and control system is integrated on the body to maintain the working temperature of the body to be less than or equal to 77K, reduce resistance and dielectric loss and improve a radio frequency breakdown threshold; according to the invention, the radio frequency breakdown threshold is increased at a low temperature, so that the acceleration structure stably operates under higher electric field intensity, and the particle energy gain is increased; the metal resistivity and the dielectric loss are synchronously reduced, the total power loss is reduced, and the energy efficiency is improved; micro-discharge and gas desorption effects are inhibited, the structural stability is improved, and the service life of equipment is prolonged; through low-temperature adaptive design and systematic integration, electromagnetic performance and mechanical reliability are ensured, and the synergistic advantage of low temperature and medium assistance is exerted.

The application relates to a gold-plated palladium-copper bonding wire and a preparation method and application thereof, and relates to the technical field of semiconductor materials. The wire structure of the gold-plated palladium-copper bonding wire comprises, from inside to outside, a copper alloy core material, a palladium plating layer and a gold plating layer; the copper alloy core material contains one or more than two trace alloy elements of Be, P, Ag, Ca and Al; the composition of the copper alloy core material comprises, in terms of weight percentage, Cu >= 99.99 wt%, Be 0.0005-0.005 wt%, P 0.001-0.01 wt%, Ag 0.0005-0.005 wt%, Ca 0.0003-0.002 wt%, Al 0.001-0.01 wt% and inevitable impurities <= 0.001 wt%. The gold-plated palladium-copper bonding wire can be used for BOSB / BBOS ball placement and wire bonding, long wire tail zero false reporting, ball cutting stabilization, mechanical reliability, excellent oxidation resistance and low-cost mass production.

The invention discloses a multi-layer aluminum core copper-clad plate based on a plasma anodic oxidation coating and further discloses a preparation method of the copper-clad plate, and the preparation method comprises the following steps: pretreating an aluminum core; performing plasma anodic oxidation by adopting a pulse power supply, and generating an aluminum oxide ceramic insulating layer on the surface of the aluminum core in situ; positioning and drilling the aluminum core, and sealing the hole with insulating resin; adhering copper foils to the two sides of the aluminum core to form a double-sided plasma anodic oxidation copper-clad aluminum plate; performing pattern manufacturing on the surface of the double-sided plasma anodic oxidation copper-clad aluminum plate, overlapping multiple layers of copper-clad aluminum plates, and performing hot-pressing curing; carrying out through hole processing and hole metallization on the copper-clad plate subjected to multi-layer lamination; and performing pattern manufacturing and anti-oxidation treatment on the surface of the copper-clad plate to obtain the multi-layer aluminum core copper-clad plate. The multi-layer aluminum core copper-clad plate has excellent mechanical reliability, insulation stability, longitudinal heat conduction efficiency and high-frequency signal transmission performance.

The application belongs to the technical field of cable manufacturing, and specifically discloses a composite cable and a preparation method thereof, which comprises an inner sheath, the inner sheath is internally provided with connecting sleeves, the connecting sleeves are internally provided with connecting cores, the inner sheath is internally provided with first filling layers at the outer walls of the connecting sleeves, the outer wall of the inner sheath is circumferentially provided with control cores, the outer wall of the inner sheath is provided with an insulating layer, the control cores are located in the insulating layer, the gap between the control cores and the insulating layer is filled with a second filling layer, the second filling layer is connected with the outer wall of the inner sheath, the middle part of the outer wall of the insulating layer is provided with a reinforcing shielding layer, and the outer wall of the insulating layer is provided with a buffer sleeve. The application improves the mechanical reliability, anti-interference ability and service life of the cable in a poor environment.

This invention relates to the field of energy storage equipment structural simulation and mechanical reliability assessment technology, specifically a strain node assessment system for energy storage cabinets based on mechanical simulation. The system includes: a basic data parsing module, which acquires three-dimensional structural data and material property data of the energy storage cabinet, extracts assembly and bonding features, and performs finite element mesh generation to form an initial strain node set; a dynamic interference injection module, which acquires historical operating environment load characteristic data and generates a dynamic interference load spectrum through a generative adversarial network model; a trust entropy assessment module, which extracts ideal stress tensor sequences and nonlinear stress tensor sequences and calculates the dynamic divergence rate, defining it as the node-level simulation trust entropy; and a topology reconstruction module, which optimizes and reconstructs target nodes exceeding a threshold and iteratively updates them, outputting a structural optimization assessment report or an initial safety assessment report. This invention enables early screening of high-risk assembly nodes in energy storage cabinets and provides decision support for structural reconstruction.

The invention belongs to the technical field of metallurgical materials, and relates to a preparation method of a Ti3SiC2 / BN / B4C reinforced copper-based brake pad material. According to the high-iron copper-based brake material prepared by taking nickel-chromium alloy, Sn and Si powder as raw materials, taking hBN and Ti3SiC2 as lubricants, taking cBN and B4C as hard phases and supplementing a small amount of nickel-chromium alloy, Sn and Si powder, the high-iron copper-based brake material has excellent tribological performance, mechanical reliability and service stability. In the aspect of a lubricating system, hBN is used as a high-temperature lubricant, so that the friction coefficient and abrasion are effectively reduced; ti3SiC2 serves as ternary layered ceramic and has the electric conduction and heat conduction performance of metal and the high temperature resistance performance of ceramic, a small amount of nickel-chromium alloy, Sn and Si powder are supplemented, and the problem that brake vibration and howling are likely to be generated due to excessive SiC and TiC hard phases of a carbon-ceramic brake interface is solved. The brake pad has the characteristics of high-temperature friction stability, low wear rate and environmental friendliness, and provides a high-reliability solution for a high-speed rail braking system.

The utility model discloses a battery pack and a power utilization device, the battery pack has a first direction and a second direction which are intersected, the battery pack comprises a box body and a protection assembly, the box body has an accommodating space, the box body comprises a bottom plate, the bottom plate is arranged on one side of the accommodating space along the second direction, and the bottom plate is used for forming the accommodating space in a surrounding manner; the protection assembly comprises a protection plate and a reinforcing piece, and the protection plate is arranged on the side, away from the containing space, of the bottom plate in the second direction and connected with the bottom plate. The protection plate is provided with a containing cavity which penetrates through the side, facing the bottom plate, of the protection plate. The reinforcer is at least partially arranged in the accommodating cavity and is connected with the protection plate; the reinforcing part comprises a plurality of protrusions which are arranged at intervals in the first direction, a first groove is formed between every two adjacent protrusions, and the first grooves are formed in the side, facing the protection plate in the second direction, of the reinforcing part. According to the battery pack, the plurality of bulges are matched with the first grooves, so that the transmission and absorption of impact along the arrangement direction of the bulges are realized, and the overall mechanical reliability of the battery pack is improved.

The application provides a packaging board and a packaging structure. The packaging board comprises a substrate, a first rewiring layer and a first heat conduction layer. The first heat conduction layer is located on the side of the first rewiring layer away from the substrate. Compared with the prior art, the embodiment increases the heat dissipation area, effectively reduces the overall temperature of the first electronic component, ensures the working stability of the first electronic component, and prolongs the service life of the first electronic component. At the same time, the heat accumulation is avoided, the mechanical reliability of the interconnection between the first electronic component and the packaging board is ensured, and the heat is also avoided from being transmitted to the packaging board, so that the electrical transmission performance of the packaging board is ensured.

The invention discloses a carbon emission optimization method based on a diesel engine, and relates to the field of diesel engines. According to the method, crankshaft dynamic balance characteristics are accurately extracted through a multi-source sensing and adaptive filtering technology, and state association and evolution laws of a mechanical structure are deeply excavated by using a space-time diagram convolutional network; a digital twinborn body fused with physical constraints is constructed to realize prospective prediction of carbon emission intensity, and finally, a collaborative optimization instruction is generated by means of a multi-target reinforcement learning agent to realize accurate regulation and control of an oil injection system and a balancer, so that the combustion efficiency of a diesel engine is remarkably improved, carbon emission is effectively reduced, and the service life of the diesel engine is prolonged. And meanwhile, the operation stability and the mechanical reliability are guaranteed.

The application provides a DC valve hall wall bushing structure, which comprises a plurality of pipe sections axially sleeved on a current-carrying guide rod, and a moving ring axially movably sleeved outside the pipe sections; the moving ring is driven to move on the pipe sections in a direction close to an adjacent first connecting ring, so as to trigger a first positioning assembly and a second positioning assembly respectively, so that the first positioning assembly locks the relative position between the adjacent first connecting ring and a second connecting ring, and the second positioning assembly locks the relative position of the current-carrying guide rod inside the pipe section. The traditional integrated bushing is improved into a sectional structure with a plurality of pipe sections axially sleeved, so that the transportation, installation and maintenance difficulties of the super-long bushing are effectively solved, the problem of excessive cantilever load caused by the single body being too long and too heavy can be avoided, and the butt joint between the pipe sections and the fixation between the pipe section and the current-carrying guide rod can be conveniently and efficiently completed by driving the moving ring only, so that the structure is stable, the operation is simple, and the mechanical reliability is high.

The invention provides a fixing assembly of a high-temperature superconducting magnetic fluid propulsion refrigeration device, and belongs to the technical field of high-temperature superconducting magnet cooling. The fixing assembly comprises an epoxy pull rod, a titanium alloy pull rod, an epoxy pull rod base, a cable-stayed base, a titanium alloy pull rod base and a titanium alloy pull rod tailstock. The two ends of the epoxy pull rod are connected with an epoxy pull rod base on the end face of the high-temperature superconducting magnetofluid storage device and an inclined pull base welded to the inner wall of an outer layer Dewar of the refrigeration device respectively to form a symmetrical inclined pull rod structure. One end of the titanium alloy pull rod is connected with a titanium alloy pull rod base on the end face of the high-temperature superconducting magnetofluid storage device, and the other end of the titanium alloy pull rod penetrates through the side circumferential face of the magnet Dewar and then is fixed by a titanium alloy pull rod tailstock arranged on the side circumferential face of the outer-layer Dewar of the refrigeration device to form a vertical hoisting structure. The fixing assembly simultaneously meets the requirements of mechanical reliability, huge electromagnetic force resistance, reduction of room temperature heat conduction, prevention of thermal deformation, fine management of low-temperature thermal stress and reduction of operation energy consumption.

The invention relates to the technical field of thick film materials special for electronic elements, in particular to a flexible heating assembly for an electronic element and a preparation method of the flexible heating assembly. The fiber supporting structures are distributed in the macromolecular continuous phase structure in a strip-shaped manner; and a plurality of conductive particles, wherein the plurality of conductive particles are uniformly distributed in the polymer continuous phase structure. Wherein part of the fiber supporting structure is a porous structure, and the porous structure is filled with the conductive particles. The flexible heating assembly has high conductivity, can be driven to heat under low voltage, has excellent mechanical stability, can bear a certain degree of repeated stretching and bending, maintains the conductivity in a stable interval, accords with a calculation result of artificial intelligence multi-scale simulation, and is suitable for popularization and application. The problems of excellent mechanical reliability, interface stability and electric heating performance of the flexible heating assembly in the fields of intelligent wearable devices, automotive electronics and the like are solved.

The scheme discloses a SOP8L power device packaging structure and a preparation method thereof. The packaging structure comprises the following steps: a reverse cutting structure is designed for a lead frame, so that the carrier frame is located at the top area of the package after packaging is completed; a top insulating heat dissipation structure is arranged on the carrier frame and the back surface of the semiconductor chip at the top of the package; a whole drain pad is formed by a plurality of pins at the bottom of the package, and a through hole is arranged on the drain pad; a target pin connected to the gate of the semiconductor chip is a composite structure comprising a gull wing structure and a straight insertion structure; and the top insulating heat dissipation structure, the drain pad and the pin area of the package are not packaged. The packaging structure does not need to use compressible thermal bonding materials, realizes stable and predictable low-thermal-resistance heat dissipation through the top insulating heat dissipation structure, and cooperates the reverse cutting frame and the riveting pad to improve the mechanical reliability of the package.

The utility model relates to a tensile self-contraction power line assembly, and aims to improve the tensile capability and the automatic contraction performance of a power line. The power line assembly comprises a power line body and a spring winding box, the power line body is composed of at least one strand of conductor core, an insulating layer, a fiber reinforcing layer and an outer sheath, and the fiber reinforcing layer is made of aramid fibers or fiber materials with similar tensile strength so as to provide longitudinal tensile support and enhance the tensile resistance and durability of the power line. The outer layer is coated with the elastic low-carbon steel wire tensile strip, and the spiral structure of the elastic low-carbon steel wire tensile strip enhances the self-contraction performance of the power line, so that the power line is prevented from being wound, and the use convenience and safety are improved. By accurately controlling material selection and structural design, the high-strength flexible cable can maintain excellent electrical performance and mechanical reliability under the conditions of high stress and frequent bending, and is widely applicable to high-strength use scenes.

The invention discloses an aluminum-based heating liquid heating device which comprises a device body, and the device body comprises a main body frame, a first sealing material frame, a first aluminum-based electric heating plate, a first protective outer cover, a second sealing material frame, a second aluminum-based electric heating plate, a second protective outer cover and locking screws. The first sealing material frame and the second sealing material frame are of rectangular structures, the four corners of the first sealing material frame and the four corners of the second sealing material frame are of arc-shaped structures, the first sealing material frame and the second sealing material frame are made of rubber, the first sealing material frame is installed at the top end in the main body frame, and the first aluminum-based electric heating plate is fixed to the top of the main body frame through locking screws. The first sealing material frame is located at the bottom of the first aluminum-based electric heating plate, the first protective outer cover is installed on the top of the main body frame through the locking screws, and the first aluminum-based electric heating plate is located above the first protective outer cover. The device comprehensively breaks through the dimensions of heat conduction efficiency, cost control, mechanical reliability, electrical property stability and the like.

The invention belongs to the related technical field of superconducting, and discloses an annular superconducting armature winding topological structure and a superconducting motor. The armature winding is a high-temperature superconducting coil, and the high-temperature superconducting coil is embedded into each stator groove in an annular winding structure. Compared with a conventional fractional slot concentrated winding, more winding phase distribution and slot potential distribution can be provided for the superconducting motor, and more design freedom degrees are achieved; the influence of the direction of a magnetic field acting on a winding strip on the performance reduction of the strip can be greatly reduced, and the performance bottleneck caused by high harmonic loss and low slot fullness rate of a traditional concentrated / distributed winding is greatly reduced; the technical problems of alternating current loss accumulation, poor superconducting state stability and insufficient mechanical reliability of the superconducting armature winding in the MW-level aviation motor are effectively solved.

The invention provides a light-weight double-section blowing type forming process for a glass bottle, belongs to the field of glass product processing, and solves the problems of low forming production efficiency, insufficient precision, poor system performance and the like of the existing glass bottle. Comprising the following steps: S1, preparing and melting raw materials; s2, feeding and prototype forming; s3, shaping and strengthening; s4, annealing treatment; and S5, carrying out online detection and sorting. According to the invention, through double-section pressure blowing and addition of a special reinforcing agent, the difficult problem of consideration of light weight and strength is successfully solved, dynamic initial blowing pressure control based on viscosity and servo precise control of mold movement are adopted, and an online laser thickness measurement and intelligent feedback system is combined, so that process parameters can be automatically and finely adjusted, and the consistency and qualified rate of products are improved; each core module is provided with an electric three-dimensional positioning mechanism, so that quick and accurate centering and cooperative adjustment of the mold are realized; a whole-process quality monitoring system from forming to delivery is integrated, the mechanical reliability and durability of each delivery product are ensured, and defective products are avoided.

A wafer-scale silicon substrate includes through-silicon spring structures incorporating fracture-arrest features that prevent crack propagation and maintain functionality under overload or thermal stress. Each spring structure may include widened nodes, rounded etch termini, or stress-dissipating anchor points positioned along compliant beams. These structures limit fracture length and localize strain damage, allowing the wafer to remain mechanically and electrically functional even after partial spring failure. The fracture-arrest features are defined lithographically and formed concurrently with the springs using a deep reactive-ion etch, providing robust mechanical reliability for wafer-scale assemblies operating under high thermal and mechanical stress.