50results about How to "Reduce structural weight" patented technology

The application provides a kind of integrated node flexible variable mechanism of rope drive active deformation topology structure, it is related to flexible deformation device technical field, control is realized to large-span deformable structure by using rope drive, structural weight is reduced, and the operating performance of flexible deformation body mechanism is improved.The shortening of first winding makes the radius of annular framework larger;The shortening of second winding makes the length of annular framework longer;Between the first annular framework and the second annular framework, the first winding on the first annular framework is arranged on the first node on the second annular framework, and the second winding on the first annular framework is arranged on the first node on the second annular framework to realize active turning, which can reduce the stress applied to the mechanism by the outside when the pipeline moves, help protect the flexible structure, improve the system use time, and better adapt to complex terrain space scenarios, actively adjust the travel speed and direction to select the optimal path to improve work efficiency.

This utility model discloses a support system for an integrated sloping roof and courtyard, and a residential photovoltaic power station. The system includes a roof support and a courtyard support. The roof support comprises several horizontally spaced inclined beams on a first sloping roof, several horizontally spaced back braces on a second sloping roof, and short column support assemblies installed on both the first and second sloping roofs to support the inclined beams and back braces. The back braces are correspondingly positioned to the inclined beams, with their upward-sloping ends connected to the beams. The inclined beams extend downwards along the first sloping roof to above the courtyard. The courtyard support includes columns installed within the courtyard, with their upper ends connected to the inclined beams. A reinforcement structure is provided between the columns and the inclined beams, and / or between the columns themselves. The roof support and courtyard support can be designed as a single unit, forming a unified slope above the first sloping roof and courtyard for installing photovoltaic modules, increasing the number of photovoltaic modules installed and expanding the power generation area.

The invention discloses a flexible bracket for an angle sensor of a tilting mechanism and an assembly method. The flexible bracket is characterized in that a fixed end bearing seat is fixedly connected with a main shaft; the tilting end bearing seat is fixedly connected with the main shaft and is spaced from the fixed end bearing seat; an inner ring of the bearing is fixedly connected with the fixed end bearing seat, and an outer ring of the bearing is clamped and fixed with the sensor stator bracket through the tilting end bearing seat; the sensor stator bracket is used for fixing an angle sensor stator; the sensor rotor bracket is used for fixing an angle sensor rotor, and the sensor rotor bracket and the sensor stator bracket are coaxially arranged in a relatively rotating manner; the flexible decoupling assembly is arranged between the sensor rotor support and the fixed end bearing seat and is used for generating elastic deformation when the main shaft deforms or vibrates. According to the invention, the fixed end bearing seat, the tilting end bearing seat and the mounting bracket of the angle sensor are integrated into a whole, the structure is simplified, and the reduction of the mounting coaxiality caused by the bending deformation of the main shaft under load can be automatically compensated through the flexible decoupling assembly.

This invention discloses a vibration damper for an afterburner with an insertion tube, belonging to the design field of afterburners. It includes a vibration damper, a flame stabilizer, and a central cone. The vibration damper is located at the downstream end of the outer bypass channel, closely attached to the inner wall of the afterburner shell, forming a double-wall structure. Cold air from the outer bypass flows through it, cooling the wall surface and absorbing oscillation energy, thus suppressing high-frequency vibrations in the combustion chamber. The flame stabilizer is located in the inner bypass channel, its inner end connected to the central cone. The inner bypass and part of the outer bypass airflow meet here, forming a low-speed recirculation zone, achieving fuel-air mixing and stable ignition. The vibration damper has openings, employing a deep-hole structure with an insertion tube. The insertion tube is placed within a hole in the vibration damper's base, significantly increasing the equivalent neck length of the vibration damper while maintaining the same main plate thickness. This shifts the peak sound absorption frequency towards lower frequencies, improving the vibration damper's absorption capacity for low-frequency oscillation modes in the afterburner.

The invention discloses an intelligent follow-up rotating cockpit system for port mobile machinery, and relates to the technical field of port mobile machinery cockpits, and the intelligent follow-up rotating cockpit system comprises a middle annular sliding rail mechanism and a flexible suspension frame mechanism which are fixed in a cockpit. The flexible suspension frame mechanism is in sliding connection with the annular sliding rail through an arc-shaped sliding plate, and a seat chassis and a seat are installed on the flexible suspension frame mechanism through a spring damping assembly. The annular sliding rail is further rotationally connected with a display screen, the main operation table and the auxiliary operation table are installed on a seat chassis, and the display screen and the seat achieve synchronous follow-up rotation through magnetic coupling. According to the system, a traditional ground rotating base is replaced with the middle annular sliding rail, and the structure is more compact; the flexible suspension frame provides multi-direction vibration reduction, and comfort is improved. According to the invention, the real-time consistency of the operation visual field and the control direction is realized, and the harbor machinery operation efficiency, the man-machine work efficiency adaptability and the long-term driving comfort are obviously improved.

This application relates to the technical field of clamping devices for loading platforms, and discloses a clamping device for a stacker crane loading platform, which includes a mounting frame, a first clamping frame, and a second clamping frame. The mounting frame is mounted on the loading platform, forming a loading area between it and the platform. Both the first and second clamping frames are mounted on the mounting frame and move towards or away from each other synchronously via a power unit. A clamping area is formed between the first and second clamping frames, and this clamping area is located within the loading area. This application improves the stability when conveying filter rod boxes.

The application discloses a high-temperature curing ablation-resistant and heat-insulating two-component coating and a preparation process. The coating is composed of A component and B component. The A component comprises modified epoxy resin, liquid butyronitrile rubber, aluminum hydroxide powder, chromium trioxide, high-silica fiber powder, hollow glass microbead and toluene; the B component is a curing agent and a curing accelerator. In the preparation, the aluminum hydroxide powder, the chromium trioxide, the high-silica fiber powder and the hollow glass microbead are made into a filler dispersion liquid; then the epoxy resin and the liquid butyronitrile rubber are made into a resin-rubber mixture; then the filler dispersion liquid is slowly and uniformly added into the resin-rubber mixture under stirring, and the A component is obtained by soaking in a static magnetic field at room temperature and grinding; the curing agent and the curing accelerator are the B component. By optimizing the coating composition, the ablation resistance and the heat-insulating performance of the coating can be obviously improved by coating a single layer, the construction process is simplified, the coating thickness is reduced, and the high-temperature resistance of the coating is improved.

This invention discloses a high lift-to-drag ratio, long-endurance, low-speed airfoil, revealing its maximum relative camber, maximum relative thickness, and the curve equations satisfied by its upper and lower edges. The origin of the coordinate system containing the airfoil is defined as the leading edge of the chord. The X-axis coincides with the chord line, pointing from the leading edge to the trailing edge of the airfoil. The Y-axis is perpendicular to the X-axis, pointing in the direction of the airfoil's curvature. The chord length is defined as C; therefore, the maximum relative camber is 6%C, and the maximum relative thickness is 4.5%C. The airfoil of this invention exhibits a higher lift-to-drag ratio and a higher lift coefficient while maintaining a lower drag coefficient. It reduces the weight of the wing structure, and its thin, curved shape results in a smaller internal wing cavity, optimizing aircraft weight while concentrating stress on the structure.

This utility model discloses a photovoltaic-thermal module for an evaporator, including a photovoltaic module, a heat absorber plate, a heat absorption channel, and a frame. A junction box is provided inside the photovoltaic module. The heat absorber plate is fixedly connected to the back of the photovoltaic module, and the heat absorption channel is fixedly connected to the heat absorber plate. Refrigerant circulates within the heat absorption channel. The heat absorption channel includes a manifold and branch pipes. The manifold has a closed design at both ends and is connected to a connecting pipe. The branch pipes are internally threaded thin tubes with a diameter of 3-10 mm. Both ends of the branch pipes are connected to the manifold, and one or more semi-circular bends are provided along the length of the same branch pipe. Using this photovoltaic-thermal module significantly reduces the risk of photovoltaic panel deformation and microcracks in the solar cells, simplifies the manufacturing process, reduces costs, and optimizes heat exchange efficiency.

The utility model discloses a weldless high-pressure container, which comprises an integrally formed cylinder body, the connecting assemblies are arranged at the two ends of the barrel and used for achieving non-welding connection between the barrel and the end structure; the self-tightening sealing structure is arranged on a contact interface of the cylinder body and the end part structure and is used for self-adaptively enhancing the pressure intensity of a sealing contact surface under the action of medium pressure; the connecting assembly and the self-tightening type sealing structure act synergistically so as to eliminate residual stress of a welding seam and reduce dependence of sealing on pre-tightening force. The connecting assembly and the self-tightening type sealing structure act synergistically so as to eliminate residual stress of a welding seam and reduce dependence of sealing on pre-tightening force.

This utility model provides a seat support structure and a seat. The seat support structure includes a support plate with a hollow structure and a support member with a flanged structure. The support member is fixedly connected to both sides of the support plate. Each end of the support member has an upper end face and a lower end face. The upper end face can connect to the seat body, and the lower end face can connect to the floor. Thus, by using a support plate with a hollow structure, some non-load-bearing structures can be eliminated, reducing the weight of the support plate without affecting its mechanical strength. The support member with the flanged structure is fixedly connected to both sides of the support plate. Compared to traditional tubular and solid support structures, the support member with the flanged structure has a smaller structural weight while ensuring support stability, which helps to reduce the overall weight of the seat support structure and achieve a lightweight design.

The invention belongs to offshore anchoring foundation construction devices, and discloses deepwater assembly type screw anchor installation and recovery equipment which comprises a torque resisting mechanism and a power transmission mechanism. The torque resisting mechanism mainly provides torsion resistance, the power transmission mechanism mainly provides pressure and torque needed by installation and recovery, a novel installation mode with spiral anchor torsion resistance as a main part and compression resistance as an auxiliary part is achieved, and meanwhile the characteristic that the settling vat can be installed under water through negative pressure is fully considered. The size and the weight of a single component are reduced, the device is more practical and efficient deep-water sea area screw anchor installation equipment, and installation of a long-connecting-rod screw anchor can be achieved. Meanwhile, the power transmission mechanism is recovered through hoisting, and the torque resisting mechanism is recovered through pumping water and air into the settling vat through a vacuum pump, so that cyclic utilization of the installation equipment is realized, the production cost is reduced, and the production efficiency is improved.

The invention relates to the technical field of chain transmission, in particular to a chain wheel, a chain transmission assembly and a driving system. A first meshing tooth set and a second meshing tooth set are arranged on the periphery of the chain wheel and arranged at intervals in the axis direction of the chain wheel. Wherein the first meshing tooth set is used for being meshed with an inner chain plate of a chain, and the second meshing tooth set is used for being meshed with an outer chain plate on one side of the chain. The chain wheel is applied to a chain transmission assembly in a driving system, the transmission stability can be improved, the structure can be optimized, then the structural weight of the chain wheel is reduced, and therefore operation energy consumption can be reduced.

The application provides a straight rod stabilizing device based on a spiral structure blade, which comprises a straight rod, a spiral blade structure, a ball bearing and a thrust bearing; the outer layer of the straight rod is connected with the spiral blade structure; the upper and lower ends of the spiral blade structure are movably connected with the ball bearing and the thrust bearing; the application can improve the wind stability; the device can effectively improve the wind stability of objects (such as buildings, bridges, telegraph poles, billboards and the like) exposed in a high wind speed environment, reduce the possibility of being affected by wind force, and reduce the production and maintenance costs; through the detachable design, the spiral blade structure is independently installed, the cost increase caused by integral molding can be avoided in the production process, the maintenance and replacement can be more convenient, the maintenance cost is reduced, meanwhile, through the 3D printing technology and the like, the material cost can be reduced in the manufacturing process, and the structure weight is reduced.

This invention relates to a multidimensional force sensing system based on locally high relative stiffness ratio structures, belonging to the field of multidimensional force measurement technology. The invention addresses the problem of excessive structural weight of the load frame and support frame in large-scale multidimensional force sensing systems when achieving high-precision measurements. One system described in this invention comprises several locally high relative stiffness ratio structures. Each locally high relative stiffness ratio structure includes a load frame, a support frame, and several individual multidimensional force sensors. Each individual multidimensional force sensor has two thin load necks and is arranged side-by-side between the load frame and the support frame. All load frames and / or support frames of the locally high relative stiffness ratio structures are connected in parallel via lightweight frames. The high relative stiffness ratio refers to maximizing the relative stiffness ratio (rsr).

The utility model discloses an isolating switch assembly of rail vehicle door system, including trigger switch, isolation lock box cover, aluminium section bar extrusion forming cam, mounting support, isolation lock box base and aluminium section bar extrusion forming isolation lock box, the trigger switch is with cam and constitutes trigger mechanism, and mounting support and isolation lock box constitute frame mechanism, the upper and lower both sides of isolation lock box all are equipped with threaded mounting hole, and isolation lock box can overturn into symmetrical structure. The utility model can adapt to more complex car body space construction, reduce manufacturing cycle, effectively reduce manufacturing cost.

The application discloses a filtering device for industrial wastewater discharge, which comprises a sewage channel, an intercepting mechanism for removing large-particle suspended matters is arranged in the sewage channel, supporting mechanisms for preventing the intercepting mechanism from falling back are arranged on both sides of the intercepting mechanism, and unlocking mechanisms matched with the supporting mechanisms are arranged on the side surfaces of the supporting mechanisms; the filtering device has the advantages that the structure is simple, the design is reasonable, suspended matters can be naturally captured and guided upward through the arrangement of the intercepting body, the suspended matters can be caused to be lifted up at the free end after being accumulated to a certain degree under the cooperation of the supporting mechanisms, and the suspended matters are convenient to remove, the self-locking of the connecting rod is ensured through the arrangement of the blocking plate, the limiting plate and the spring, the intercepting body is prevented from falling off, the mechanism is simplified through the arrangement of the movable cavity groove, the space in the sewage channel is saved, and in addition, the combination of the main pull rope and the auxiliary pull rope realizes the quick unlocking function, and the cleaning work after interception is facilitated.

A large-diameter tension-compression decoupling fusion type linear separation device is composed of a separation ring, an inner support protective cover, a detonator seat, an energy-gathering cutting cable assembly, a connecting fastener and a detonator, the protective cover is internally provided with the energy-gathering cutting cable, after the detonation energy is transmitted to the main charge of the cutting cable through the transmission assembly of the detonator, the shaped charge is driven by the detonation wave to form a metal jet to cut and separate the separation ring, the high-level load transmitted by the projectile body is tension-compression decoupled through the tolerance control of the separation ring and the inner support protective cover, and a large-diameter tension-compression decoupling fusion type linear separation device is given, which has the advantages of simple structure, reliable separation performance, high bearing capacity, large connection stiffness, light weight, convenient installation and the like.

The invention discloses a water-air amphibious cross-medium aircraft, belongs to the field of underwater and air multi-purpose aircrafts, and aims to solve the problems that an existing cross-medium aircraft is poor in rigid-flexible adaptive conversion performance, slow in propulsion switching and weak in multi-state control adaptability. The wing assembly is installed on the fuselage and comprises an inner-section wing, the inner-section wing is installed on the fuselage, the two ends of the inner-section wing are each provided with a variable wing unit, and each variable wing unit comprises a swing arm section wing and a rigid-flexible conversion section wing; the swing arm section wing is arranged on the inner section wing and can realize folding and unfolding deformation in the plane of the inner section wing, and the rigid-flexible conversion section wing is arranged on the swing arm section wing and can realize rotation in the plane at the tail end of the swing arm section wing. The multi-purpose aircraft is mainly used as a multi-purpose aircraft which can be flexibly switched to operate in two different medium environments, namely underwater and air.

The utility model provides a multi-layer sandwich structure light-weight high sound insulation board which comprises a first sandwich structure, a second sandwich structure, a third sandwich structure and a fourth sandwich structure, the first sandwich structure comprises a first sandwich structure face plate, a first sandwich structure back plate and a first sandwich structure core material, and the first sandwich structure core material is located between the first sandwich structure face plate and the first sandwich structure back plate; the second sandwich structure back plate is connected with the first sandwich structure back plate through reinforcing ribs to form a second sandwich structure; a reinforcing rib gap between the first sandwich structure back plate and the second sandwich structure back plate is filled with the sound absorption and heat insulation layer; and the acoustic super-structure layer is embedded in the sound absorption and heat insulation layer and is composed of periodic local resonance units. According to the light high-sound-insulation board with the multi-layer sandwich structure, the sound insulation performance is improved, meanwhile, the weight of the whole structure is reduced, light weight is achieved, and the light high-sound-insulation board has the excellent comprehensive performance of good rigidity, heat insulation, heat preservation and the like.

The invention discloses a vehicle-mounted flight stretcher which is composed of a rescue vehicle platform and a vehicle-mounted rescue aircraft, the vehicle-mounted rescue aircraft comprises a rescue aircraft body and a ground rescue vehicle platform, and a special lifting type take-off and landing cabin is arranged on the ground rescue vehicle platform; the vehicle-mounted rescue aircraft body adopts a double-row serial heterogeneous duct layout, a streamline battery cabin is fixedly connected right below a main body frame of the aircraft body through hanging points, and an energy module is packaged in the streamline battery cabin; a load management system is integrated on the abdomen of the vehicle body main body frame, namely between the energy module and the vehicle body main body frame, and a medical stretcher is arranged under the load management system. A specially-designed large-load, compact and disassembly-free ducted aircraft serves as a connection aircraft to achieve the function similar to a stretcher, and the problem that vehicles cannot pass through and cannot be driven in harsh rescue environments such as dense forest mountains, traffic jam highways and urban blocked streets is solved.

The present application belongs to the technical field of pile machinery, and particularly relates to an integrated rotary platform of a rotary drilling rig capable of achieving installation of various hoists, which comprises a rotary platform main body, a main hoist, an axle end support transition flange and a speed reducer transition flange. Main hoist installation holes are formed in two large vertical plates of the rotary platform main body; an axle end support mounting seat is installed at the main hoist installation hole of one large vertical plate, and a speed reducer mounting seat is installed at the main hoist installation hole of the other large vertical plate; one end of the main hoist is directly connected with the axle end support mounting seat or connected with the axle end support transition flange, and the other end of the main hoist is directly connected with the speed reducer mounting seat or connected with the speed reducer transition flange. The rotary platform main body of the present application adopts an integrated large vertical plate structure, thereby reducing the overall weight and cost of the machine; and a modular design is adopted, so that various different main hoist installation sizes can be matched by increasing or decreasing the configuration of the speed reducer transition flange and the axle end support transition flange, thereby increasing the versatility between the rotary platform main body and the main hoist.

This invention discloses a landing gear buffer device for unmanned aerial vehicles (UAVs), which solves the problem of impact energy absorption during UAV landing by using a phased destruction and energy absorption deformation method. Designed based on the concept of phased energy absorption destruction, and installed on the existing UAV landing gear, it effectively reduces the peak impact overload and the transfer of impact kinetic energy to the fuselage during landing through phased destruction and energy absorption buffering, thus increasing structural safety and improving the UAV's crash survivability. Simultaneously, this UAV landing gear buffer device has a simple structure, low cost, and high energy absorption efficiency, which can reduce the fuselage's impact energy absorption requirements and has a positive impact on reducing the fuselage's structural weight.

The utility model discloses an auxiliary fascia console with a reinforcing framework. The auxiliary fascia console comprises an auxiliary fascia console body, a cavity and an inner supporting structure. The inner supporting structure is arranged in the cavity, the supporting framework is aligned with the assembling frame and then installed in the cavity, the supporting framework is embedded and buckled on the surface of the assembling frame through the assembling groove so that the supporting framework can be tightly connected with the cavity, and then the first mounting hole and the second mounting hole are locked and fixed through the screw. The supporting framework is integrally made of aluminum alloy, the aluminum alloy can reduce the weight of the structure, the requirement for light weight of the whole auxiliary instrument panel can be met, and the bearing capacity of the supporting framework can also be guaranteed. The supporting framework can provide stable internal support for the auxiliary instrument panel, plastic deformation of the auxiliary instrument panel in the using process is avoided, and the service life of the auxiliary instrument panel is effectively prolonged.

This utility model discloses a non-welded support structure for a zeolite rotor, including a support plate with through holes. First fixing rods are fixedly mounted on the upper and lower sides of the support plate, and third fixing rods are mounted on both sides of the support plate. The first fixing rods and the support plate are bolted together, and the third fixing rods and the support plate are bolted together. The first fixing rods are fixedly connected to the third support rods, and the middle portions of the two third support rods are respectively fixedly connected to the two ends of a second fixing rod. This utility model relates to the technical field of zeolite rotor support equipment, specifically to a non-welded support structure for a zeolite rotor. All rods are quickly connected by bolts through edge mounting holes, eliminating the need for on-site welding or non-standard processing, significantly reducing assembly difficulty and labor costs, facilitating mass production, and significantly reducing the risk of fatigue failure due to the absence of welding joints.

This invention provides a composite material integral fuel tank structure with an integrated central wing, comprising: an upper wall panel, a lower wall panel, and a box-section frame; the box-section frame includes: a front beam, a rear beam, and several box-section ribs; the front beam and rear beam are placed side-by-side in parallel; several box-section ribs are installed side-by-side in parallel between the front beam and the rear beam, forming the box-section frame; the upper wall panel is installed on top of the box-section frame; the lower wall panel is installed at the bottom of the box-section frame; each pair of adjacent box-section ribs, along with the front beam, rear beam, upper wall panel, and lower wall panel, forms a closed space, which serves as one oil storage chamber of the integral fuel tank; several oil storage chambers are arranged side-by-side along the length direction of the upper wall panel / lower wall panel / box-section frame. This invention, through the rational design of the central wing frame and skin, can significantly reduce the risk of fuel tank leakage while reducing structural weight, and has good versatility.

This application belongs to the technical field of aluminum-plastic door and window profiles, and discloses an aluminum-plastic door and window profile with enhanced wind pressure resistance, including a top plastic profile, a middle aluminum profile, and a bottom plastic profile. The bottom of the top plastic profile has a middle aluminum profile at its bottom, and the bottom plastic profile has a bottom plastic profile at its bottom. A support block is provided inside the top plastic profile, and the support block has several equidistantly distributed pressure-resistant grooves inside. A connecting component is provided between the top plastic profile and the middle aluminum profile, and a support component is provided between the middle aluminum profile and the bottom plastic profile. Baffles are provided on both sides of the top of the bottom plastic profile. This application enhances the connection strength between the top plastic profile and the middle aluminum profile by providing connecting components, and enhances the connection strength between the bottom plastic profile and the middle aluminum profile by providing support components, thereby improving the wind pressure resistance and strength of the aluminum-plastic door and window, and increasing the stability and service life of the door and window.

The application discloses a kind of low-frequency broadband sound-absorbing metamaterial structures and super-constructed sound barriers based on metal foam, and the metamaterial structure includes metal foam layer and composite resonant cavity layer, and the metal foam layer and the composite resonant cavity layer are stacked;Composite resonant cavity layer includes mother cavity structure and sub-cavity structure, and the sub-cavity structure is embedded in the mother cavity structure, and the mother cavity structure and the sub-cavity structure are all provided with openings towards the metal foam layer, so that the incident sound wave can enter the mother cavity structure and the sub-cavity structure after propagating through the metal foam layer;The cavity of mother cavity structure and sub-cavity structure is unidirectional equal-section cavity.The application is applied to the field of acoustic noise reduction, realizes the high-efficiency sound-absorbing performance of low frequency and wide band, has high stiffness and strength and excellent environmental adaptability, can bear, has good environmental tolerance, has excellent fireproof performance, is suitable for various complex and severe environments, ensures long-term stable working state, is convenient for low-cost mass production, and improves economic feasibility.

The present application relates to bulk material handling machinery technical field, provide a kind of automatic reversing device of hopper and material taking mechanism, wherein, disclose a kind of automatic reversing device of hopper, including two-way brake mechanism and pressure rotating mechanism, two-way brake mechanism is arranged on hopper rotating shaft and can be switched back and forth between clockwise direction brake state and counterclockwise direction brake state, pressure rotating mechanism can exert pressure on the curved surface of hopper and drive hopper to rotate around hopper rotating shaft;Still disclose a kind of material taking mechanism, including fixed steel frame, bucket wheel body, hopper rotating shaft and hopper, also include the automatic reversing device of hopper disclosed in the present application.The present application can realize complete automatic reversing, satisfy the requirement of unmanned, intelligent of whole machine equipment.

The present application relates to the technical field of welded component quality evaluation, and particularly relates to a double-alloy turbine disc connecting interface integrity evaluation and life prediction method and system. The present application obtains interface equivalent material parameters through a welded sample rod test, divides the connecting interface into independent material domains in a finite element model, and gives the interface region temperature-related equivalent material properties. In combination with multi-field coupling calculation of rotating speed, temperature and aerodynamic load, the present application realizes evaluation of meridian plane and cylindrical surface rupture rotating speed, and performs low-cycle fatigue life prediction through a Manson-Coffin model. Test verification shows that the present application can accurately identify interface dangerous points and provide more reliable structure integrity and life prediction. The method provides a scientific basis for design finalization, test verification and engineering application of double-alloy turbine discs, and has high engineering feasibility.