62results about How to "Simple design method" patented technology

The invention relates to a modification-free uniform-load planetary roller screw and an implementation method, the modification-free uniform-load planetary roller screw is composed of a nut, a screw body, rollers, an inner gear ring, a planet carrier and an elastic check ring, and the pitch value of the nut and the roller is obtained through a proposed uniform-load design method. The uniform load design method comprises the following steps: establishing an equal load distribution force matrix; establishing a planetary roller screw thread tooth load distribution calculation model according to a deformation coordination equation and a load balance equation of two adjacent thread teeth on the roller-screw and nut-roller contact sides; based on the planetary roller screw thread tooth load distribution calculation model and the equal load distribution force matrix, obtaining design pitches of a roller and a nut; the pin roller and nut design pitch is used for designing, machining and manufacturing the pin roller and the nut of the uniform-load planetary pin roller lead screw. According to the planetary roller screw, uniform distribution of loads of the planetary roller screw can be achieved, complex thread tooth modification machining is omitted through the steady pitch design, and the load performance of the planetary roller screw is greatly improved while the machining and manufacturing cost is reduced.

The invention relates to the technical field of super-structure lens design methods, and provides a super-structure lens design method, which comprises the following steps of: performing reverse design on a lens phase according to a focusing requirement, evaluating whether the phase has a proper infinitesimal structure for matching, and continuously optimizing to obtain a super-structure. Finally, the matching phase of each metamaterial lens unit better meets the focusing requirement and better fits the phase capable of being regulated and controlled by an actual infinitesimal structure, and therefore the designed metamaterial lens can have the achromatic performance of a larger caliber and a wider working wave band within the limitation range of materials and the technology.

The invention discloses a research method and a research system of a broadband efficient composite micro-perforated plate sound absorption structure based on genetic algorithm optimization, a mathematical model of the sound absorption structure is established according to theories such as an acoustoelectric analogy method, a composite micro-perforated plate calculation finite element model is established by using COMSOL software, and sound absorption characteristic research of the composite micro-perforated plate sound absorption structure is carried out. And finally, based on the research and an object-oriented programming language C + +, a sound absorption structure design and optimization platform of the composite micro-perforated panel is developed, the platform performs optimization analysis on basic structure parameters of the composite micro-perforated panel by using a genetic algorithm, and various parameter values with the widest frequency band and the best sound absorption effect are found in a given range. The optimal sound absorption structure under the given thickness is obtained; according to the invention, a new idea is provided for sound absorption performance optimization of an acoustic structure, and a reference is provided for broadband noise control of equipment in the ship field by using a novel micro-perforated plate structure.

The invention belongs to the technical field of aero-engine complete machine vibration, and particularly relates to an aero-engine shared bearing frame-double rotor system vibration coupling suppression method which comprises the steps that structural parameters of a shared bearing frame-double rotor system of an aero-engine are input; establishing a finite element model, and calculating to obtain a Campbell graph; selecting a dangerous rotating speed point in the working rotating speed range, calculating the transient dynamic response of the shared bearing frame-birotor system, and judging whether the transient dynamic response meets the requirement or not; and carrying out optimization design on the dangerous rotating speed points which do not meet the requirements, and repeating the steps until the transient dynamic response of the dangerous rotating speed points of the shared bearing frame-birotor system in the working rotating speed range meets the requirements. According to the invention, the vibration coupling of the common bearing frame-double rotor system of the high thrust turbofan engine under complex working conditions is effectively suppressed, so that the aero-engine has a relatively stable working state within a working speed range.

The invention provides an optimization design method and device for chip simulation verification, and the method comprises the steps: generating a candidate solution according to a current solution when a target chip is subjected to simulation verification, carrying out the simulated annealing calculation according to a preset algorithm cost function, the current solution and the candidate solution, judging whether to replace the current solution with the candidate solution or not, and carrying out the simulation verification of the target chip. Iterative calculation is carried out until an end condition is met, and an optimal constraint solution of the target chip is obtained; selecting at least one assertion in a preset assertion group, executing simulation according to the at least one assertion and the optimal constraint solution, and collecting coverage rate data of the external module; under the condition that it is determined that the collected coverage rate data does not reach the standard, the initial solution is adjusted according to the collected coverage rate data so as to optimize the obtained optimal constraint solution; at least one assertion selected in the assertion group is adjusted, simulation is executed again according to the at least one assertion after adjustment and the optimized optimal constraint solution, and coverage rate data of the external module after adjustment are collected until the coverage rate data reach the standard.

The invention provides a method for designing an ultrasonic guided wave transducer for active corrosion prevention of a metal pipeline surface, which comprises the following steps of: S1, determining the modal and the frequency of ultrasonic guided waves needing to be excited by utilizing finite element numerical simulation, and calculating a frequency dispersion curve of the ultrasonic guided waves propagating in a pipeline by utilizing a semi-analytical finite element method, a specific mode needing to be excited is found through the frequency dispersion curve; s2, establishing an ultrasonic guided-wave transducer model, and performing sensitivity test on parameters of the Morris trajectory model to obtain structural parameters having great influence on the characteristics of the ultrasonic guided-wave transducer; and S3, simulating different conditions of the structural parameters with relatively large influence, and designing and manufacturing the transducer to obtain proper transducer parameters. Compared with an existing design method, the design method is simpler and more efficient, and the design of transducer structures applied to pipelines of different materials and sizes can be guided.

The present invention relates to a non-modified and evenly loaded planetary roller screw and an implementation method thereof, which is composed of a nut, a screw, a roller, an inner gear ring, a planet carrier and an elastic retaining ring, wherein the pitch values ​​of the nut and the roller are obtained by a proposed evenly loaded design method. The evenly loaded design method comprises establishing an equal load distribution force matrix; establishing a planetary roller screw thread tooth load distribution calculation model according to the deformation coordination equation and load balance equation of two adjacent thread teeth on the contact side of the roller-screw and the nut-roller; obtaining the design pitch of the roller and the nut based on the planetary roller screw thread tooth load distribution calculation model and the equal load distribution force matrix; and using the roller and nut design pitch for the design and processing and manufacturing of rollers and nuts of the evenly loaded planetary roller screw. The present invention can realize the uniform distribution of the load of the planetary roller screw, and the constant pitch design eliminates the complicated thread tooth modification processing, which greatly improves the load performance of the planetary roller screw while reducing the processing and manufacturing costs.

The invention discloses a high titanium slag aggregate concrete mix proportion design method based on aggregate characteristics. The high titanium slag aggregate concrete mix proportion design method comprises the following steps: S1, measuring saturated surface dry water absorption rates of high titanium slag sand, high titanium slag stone, common sand and common stone used in concrete raw materials; s2, determining the sand and stone aggregate grading of the high titanium slag aggregate concrete according to a close packing theory; s3, determining the volume of the slurry and the volume of the aggregate according to the void ratio of the aggregate generated by aggregate accumulation and the surplus slurry; s4, the water-binder ratio is determined according to the high-titanium slag aggregate saturated surface dry water absorption rate improved Bolomey formula, and the high-titanium slag aggregate concrete proportion based on the aggregate characteristics is obtained. According to the method, the aggregate characteristics of the high-titanium slag are fully considered, the high-titanium slag aggregate concrete meeting the performance requirements can be designed according to the strength required by the concrete and the use amount of the high-titanium slag aggregate, and the design method is simple, effective, time-saving and labor-saving, and provides a design basis for promoting the application of the high-titanium slag.

The invention discloses an optical filter for realizing a medium-wave infrared focal splitting plane on a metasurface and a reverse design method. According to the light field regulation and control characteristics of the metasurface, spectrum routing and focusing functions of a specified medium-wave infrared wave band can be completed only by using the single-layer all-silicon medium metasurface, so that the filtering effect similar to that of a Bayer optical filter is achieved, the spectrum energy utilization rate is remarkably improved compared with that of the Bayer optical filter, an end-to-end reverse method is used in the design thought, and the design cost is reduced. Structural parameters are optimized in a staged mode through a genetic algorithm and a binary search algorithm (DBS), the advantages of all the algorithms are brought into full play, the design threshold is lowered, the optimization freedom degree is improved, and therefore the optimization performance can be improved. Therefore, key device support can be provided for low-illumination mid-infrared night vision color imaging application, and a new design thought is expanded for the technical field of integration and miniaturization.

The present invention belongs to the field of chip control technology, and discloses a data synchronization optimization method, system, device and terminal between serial chips, which uses the clock of the first chip of the serial chipset to count and generate information codes; transmits the information codes in sequence to the subsequent chips, and the subsequent chips use their own clocks to count the codes after receiving the codes; calculates the ratio of CNT to CNT0 to obtain the deviation value between the clock of each subsequent chip and the clock of the first chip; the subsequent chip uses the deviation value to correct the data to be synchronized and the continuous time period of the chip, so that the data and time period of the subsequent chip are synchronized with the first chip. The data synchronization optimization method between serial chips of the present invention is applied to multi-core SoC chips. The test results show that the optimized multi-core SoC chip is within 15% of the clock deviation, and the serial chipset runs continuously for 24 hours. The maximum time cumulative deviation is reduced from 7.2 hours to 17.28 seconds, and the optimization effect is obvious.

The invention discloses a maneuvering target interception guidance method with arrival angle and field angle constraints. The maneuvering target interception guidance method comprises the following steps: establishing a relative motion equation of an aircraft intercepting a maneuvering target; the relative motion equation is converted into a relative motion model with the distance between the aircraft and the target as an independent variable; setting a change curve of an expected relative front angle, and obtaining a guidance law expression based on a relative motion model; field angle constraint is carried out by limiting the maximum value of the relative front angle curve, the reachable range of the arrival angle is obtained, and under the condition that the arrival angle meets the reachable range, the aircraft adopts the obtained guidance law to carry out flight control. According to the method disclosed by the invention, linear approximate processing does not need to be carried out on the relative motion mathematical model of the aircraft and the target, the precondition hypothesis of a small preposed angle is not needed, and the method has the characteristics of simple design and use method, high applicability and the like.

The application discloses a polypeptide ligand for brain glioma diagnosis and preparation and application of a radioactive molecular probe. The polypeptide targeting a TREM2 protein has the amino acid sequence as shown in the following: HLRKLRKR. The targeted polypeptide designed by the application has the characteristics of small molecular weight, strong blood brain barrier penetration and strong TREM2 protein binding capacity. The radioactive nuclide labeled molecular probe prepared by the application has the characteristics of strong targeting and easy observation as a brain glioma imaging drug, and is convenient for clinical application. The application improves the diagnosis effect of brain glioma and provides a new idea for early discovery and early treatment of brain glioma.

The invention provides an ignition device for a boosting engine of an unmanned aerial vehicle. A plurality of explosive charging boxes with different explosive quantities are longitudinally stacked and connected, and the uppermost explosive charging box is connected with an ignition box. The design method is simple, repeated design and verification do not need to be carried out according to different engines, and the design period and test verification are reduced; and all parts are produced and can be used and taken at any time, so that the production period is shortened.

The present invention discloses a structural design method of a planetary carrier and a planetary carrier, and belongs to the technical field of planetary carriers. The structural design method of the planetary carrier comprises: establishing a structural model of an initial planetary carrier, the initial planetary carrier comprises a side plate; presetting a first limit condition and a second limit condition; according to the first limit condition, presetting a first pin shaft hole on the side plate, and according to the second limit condition, presetting a second pin shaft hole on the side plate; setting a preset opening area on the side plate, the preset opening area can include the opening positions of the first pin shaft hole and the second pin shaft hole, so that the initial planetary carrier forms a semi-finished planetary carrier. The planetary carrier is designed and manufactured by the structural design method of the planetary carrier mentioned above. The structural design method of the planetary carrier of the present invention has a simple design method, strong operability and strong applicability. The planetary carrier of the present invention has strong structural applicability, reduces repetitive labor, is convenient for archiving and preservation, is convenient for storing blanks, shortens delivery time and improves market competitiveness.

The present invention belongs to the field of radiation technology and biological irradiation technology, and discloses a method for designing a radiation source homogenizer based on Monte Carlo simulation, comprising the following steps: S1, establishing a Monte Carlo simulation model; S2, setting digital model input parameters; S3, performing Monte Carlo simulation, obtaining the dose distribution of a plane position at a certain depth below the surface of a water phantom, judging the dose distribution result, and entering S5 if the homogenization requirement is met, otherwise entering S4; S4, adjusting the homogenizer design parameters based on the simulated dose distribution, and then returning to S3; S5, making a homogenizer, performing dose measurement and judging the dose distribution result: entering S7 if the homogenization requirement is met, otherwise entering S6; S6, after adjusting based on the current homogenizer design parameters, returning to S3; S7, completing the homogenizer design. The present invention can improve the design efficiency and homogenization effect of the homogenizer, reduce the design cost, and improve the adaptability of the homogenizer to different radiation sources.

This invention belongs to the field of machining technology, specifically relating to an optimized design method for stepped drilling tools for weakly rigid laminated structures. This method addresses the problems of workpiece deformation and interlayer scratches that easily occur during drilling of weakly rigid laminated structures. It uses interlayer clearance control as the core indicator and, based on the coupling relationship between drilling axial force and workpiece deformation, constructs a quantitative mapping relationship between the tool's stepped geometric parameters and the interlayer clearance during machining. Furthermore, by establishing a critical clearance criterion for interlayer damage and combining the deformation characteristics under different drilling modes, the key parameters of the stepped tool, namely the step diameter and step length, are optimized. This ensures that the maximum interlayer clearance during drilling remains below the critical value, effectively suppressing interlayer chip intrusion and interface damage, thereby improving drilling quality. This invention realizes a shift in tool design from experience-driven to mechanism-driven, and is applicable to high-quality hole machining of various weakly rigid laminated structures.

The invention relates to a high-numerical-aperture visible light wave band tomography focusing super-structure lens and a design method thereof. The super-structure lens comprises a substrate, the substrate is provided with a visible light wave band chromatography focusing super-structure lens composed of a plurality of super-structure lens structure units, and each super-structure lens structure unit is of a cuboid structure. Through the compact simple micro-nano structure, high-numerical-aperture visible light wave band chromatography focusing is achieved, meanwhile, the integration degree is high, and effective separation and accurate control of multi-wave-band spectrum focal lengths can be achieved. Under the condition of reaching a high numerical aperture of 0.61, the chromatography depth can reach 13 microns; meanwhile, the full width at half maximum of the super-structure lens is close to or even smaller than the diffraction limit, and the focusing imaging effect is good. The design method disclosed by the invention is simple and easy to implement, adjustable in parameter design, wide in range and particularly suitable for large-scale industrial production design, and provides a thought for the integration and miniaturization development of the tomography technology. The method can be widely applied to the fields of biomedicine, microscopic imaging and the like.

The invention discloses a method for preparing rock samples with different crushing degrees through cooperation of quantitative dynamic load and three-dimensional scanning, and the method comprises the following steps: screening to-be-prepared rock samples according to pore fractures of the rock samples, the density of the rock samples and the ultrasonic longitudinal wave velocity of the rock samples to obtain to-be-prepared samples; carrying out dynamic load impact on the to-be-prepared sample, and monitoring the generation condition of internal cracks of the to-be-prepared sample by adopting acoustic emission to obtain an acoustic emission monitoring result; carrying out dynamic load impact and classification on a to-be-crushed rock sample based on the acoustic emission monitoring result to obtain a to-be-screened rock sample; and carrying out porosity screening on the rock samples to be screened by adopting three-dimensional fracture scanning to obtain rock samples with different crushing degrees. According to the method, the rock samples with different crushing degrees can be prepared through the methods of three-dimensional pore crack scanning, rock ultrasonic testing, laboratory testing, qualitative and quantitative analysis and the like, and a premise is provided for research on analyzing the re-bearing mechanical characteristics of rock masses with different crushing degrees or stress paths.

The invention provides a novel semi-submersible type offshore wind power floating platform which comprises three main stand column structures, a set of overhaul channel and a supporting structure, the three main stand column structures comprise a fan stand column and two side stand columns, the fan stand column and the two side stand columns are arranged in a triangular mode, and a wind turbine generator set is installed on the top of the fan stand column; the fan stand column is connected with the two side stand columns through a supporting structure, the two side stand columns are connected through a supporting structure, each supporting structure comprises a transverse supporting branch pipe, a plurality of inclined supporting pipes and a bottom buoyancy tank, and the inclined supporting pipes are connected between the transverse supporting branch pipes and the bottom buoyancy tanks; heaving cabins are arranged at the bottoms of the fan stand column and the two side stand columns, each bottom buoyancy tank is communicated with the heaving cabins on the two sides, and fixed ballasts are arranged in the heaving cabins at the bottoms of the side stand columns; the overhaul channel is arranged above the position between the draught fan stand column and the side stand columns and above the position between the two side stand columns. The anti-storm effect of the floating platform is greatly improved.

The invention provides a laser reflecting film system which comprises film system structures symmetrically arranged on the two sides of a substrate, the film system structures are Sub / 0.5 L (H0. 5L) 4 (G0. 5L) 2 (M0. 5L) 3 / Air, Sub is the substrate, Air is emergent medium air, L represents a low-refractive-index layer with the basic thickness, H represents a first high-refractive-index layer with the basic thickness, G represents a second high-refractive-index layer with the basic thickness, L represents a first high-refractive-index layer with the basic thickness, G represents a second high-refractive-index layer with the basic thickness, and L represents a second high-refractive-index layer with the basic thickness. M represents a medium refractive index layer with one basic thickness, and the basic thickness corresponding to one H or one L or one G or one M represents that the film layer has 1 / 4 optical thickness at the reference wavelength. The provided laser reflecting film system is high in reflectivity, good in binding power of a film layer, good in moderate friction resistance and constant temperature and humidity resistance and excellent in laser loss resistance, and can be used as a high-reflectivity film of a laser device element. The invention further provides a preparation method and application of the laser reflecting film system.

The invention discloses fine trimming equipment capable of reducing hair swing noise and a design method. The fine trimming equipment comprises a suction main machine, an air pipe, a handheld suction tube, a movable shear, a fixed shear, a noise reduction and flow stabilization piece and comb teeth. The handheld suction tube is connected with the suction host through an air pipe, an air duct is arranged in the handheld suction tube, and an air inlet is formed in the side; the fixed shear and the movable shear are sequentially arranged at the bottom of the handheld suction tube; the comb teeth are vertically fixed at the lower end of the air inlet; the front end of the noise-reducing flow-stabilizing piece is fixedly connected with the front end of the handheld suction tube, and the other tail end of the noise-reducing flow-stabilizing piece is positioned in the air duct. When hair trimming is carried out, the suction host generates negative pressure, suction force is generated on hair from the air inlet of the handheld suction tube through the air pipe, the hair is bent along the air duct to be attached to the noise reduction and flow stabilization piece to form a whole, the hair and the noise reduction and flow stabilization piece form a filament, and the dimensionless incoming flow speed at the tail end of the filament is lower than a self-excitation critical value by adjusting the diameter of the noise reduction and flow stabilization piece. The filaments are in a stable state in the air duct, and self-excited vibration noise is avoided.

The invention relates to the technical field of rail transit, in particular to a column-free subway station floor punching composite structure frame system and a construction method. The structural frame system comprises a concrete composite beam and concrete composite columns located at the two ends of the concrete composite beam. The concrete combination column comprises a profile steel stand column, and an end plate is arranged at the upper end of the profile steel stand column. The concrete composite beam comprises a main body beam and connecting beams, the connecting beams are located at the two ends of the main body beam, the connecting beams are connected with the profile steel stand columns and are aligned with the end plates, upper steel bars and lower steel bars are further arranged on the upper side and the lower side of the concrete composite beam respectively, the upper steel bars are connected with the soil-back sides of the profile steel stand columns, and the lower steel bars are connected with the soil-back sides of the profile steel stand columns. The lower steel bar penetrates through the profile steel stand column and then is bent. According to the invention, the overall rigidity of the perforated floor is improved, the vertical deformation of the floor is reduced, and the safety during operation is ensured.

The application relates to a matrix keyboard circuit design method for eliminating key ghosting, which comprises the following steps: obtaining the number of keys of a target matrix keyboard circuit, designing a matrix keyboard circuit according to twice the number of keys, and obtaining a pre-designed matrix keyboard circuit; and deleting the keys with adjacent column parity alternation in the pre-designed matrix keyboard circuit, so that the target matrix keyboard circuit is obtained; the design method is simple, the key ghosting can be eliminated without additionally increasing diodes, the cost is low, and because the diodes are not needed, the situation that the row and column scanning methods are affected due to the forward tube voltage drop is avoided, and the reliability and stability of the row and column scanning methods are ensured.

The invention discloses a transverse press rack plate, a design method thereof and a transverse press, and belongs to the technical field of plate processing. The transverse press rack plate comprises a rack plate body and an opening formed in the rack plate body in a penetrating mode, the opening is a rectangular opening, arc-shaped notches protruding outwards are formed between the top edge and the two side edges of the rectangular opening, and arc smooth transition is adopted between the arc-shaped notches and the top edge and between the arc-shaped notches and the two side edges. The arc-shaped notch is a semicircular arc-shaped notch; the radius of each semicircular arc-shaped notch is 0.032-0.034 times the distance between the circle centers of the two semicircular arc-shaped notches.

The invention provides an optical filter capable of improving tolerance, a manufacturing method, a design method and a design device of the optical filter, and a computer readable storage medium. Provided is a method for manufacturing an optical filter provided with two or more waveguides having four or more sections, the modes of light propagating through the four or more sections being two or more. The manufacturing method has a step for designing the lengths of the four or more sections, and a step for forming the two or more waveguides on the basis of the lengths of the four or more sections. The step of designing includes a step of designing the lengths of the four or more sections on the basis of a differential of the propagation constant of the sections relating to the temperature and the width of the sections.

The invention relates to a design method of an ultra-low field magnetic resonance imaging elliptic cylinder type magnet structure, and belongs to the technical field of medical electromagnetic detection. According to the method, a shape-dependent method or a virtual magnet method is adopted to design a magnet structure, a magnet is rotated in a gear transmission mode, and a large gear on the magnet is tightly matched with a small gear driven by a motor to realize rotation phase control, so that sliding of the magnet when the magnet starts to rotate and stops rotating during friction force transmission can be overcome; therefore, high-resolution two-dimensional radio frequency phase coding imaging is realized. The magnet design method is novel, the design difficulty of the lightweight magnet can be reduced, the high uniformity of the main magnetic field of the magnet is ensured, a gradient coil system is not needed, two-dimensional radio frequency phase coding imaging is realized by rotating the magnet, and the complexity of equipment is reduced.

The invention discloses a batch flexible adaptive marking device for close-range photogrammetry, belonging to the technical field of close-range photogrammetry devices; the device comprises a rope net and a flexible rope; a triangular metal plate or a circular metal plate is arranged at the center of each grid of the rope net; the triangular metal plate and the circular metal plate are connected to the corresponding nodes of the rope net through a flexible rope; a reflector is arranged on the upper surface of the triangular metal plate; and a coding mark is arranged on the upper surface of the circular metal plate. The manufacturing method of the invention is simple, low-cost and easy to implement.

The invention relates to the field of avionics bus signal integrity design, in particular to a method for optimizing ARINC659 bus signal integrity. Comprising the following steps: building an ARINC659 bus signal backboard architecture model; the terminating circuit structure of the transmitting and receiving end is optimized; refining resistance parameters according to the structure of the terminating circuit of the receiving and transmitting end; refining parallel inductance parameters according to the structure of the terminating circuit of the receiving and transmitting end; refining internal direct-current resistance parameters of the parallel inductors; a backboard terminating circuit structure is optimized; and refining series inductance parameters according to the backplane terminating structure. The method can be suitable for a multi-branch circuit signal integrity optimization scene, and impedance consistency is improved.

A design method of an axisymmetric bending detonation engine relates to a hypersonic velocity detonation engine of an aircraft, and comprises the following steps: 1) selecting and correcting a von Karman curve as a generatrix, and rotating around a symmetric axis to generate an axisymmetric precursor; 2) determining the inlet position and shape of the air inlet channel; (3) the inlet shape is translated backwards by a proper distance to form an inlet section of the air inlet channel; 4) designing an S-shaped curve beneficial to fuel mixing and gas compression, and installing a fuel spraying device behind the S-shaped curve; 5) reversely designing a wall surface for generating a bending detonation wave; 6) designing an engine exhaust nozzle; 7) selecting and arranging a plurality of engine channels; and (8) designing an outer cover, a connecting plate and other related parts of the air inlet channel, and completing the overall design of the whole engine. The design method is simple and easy to implement, and the performance of the detonation engine can be remarkably improved by improving the displacement effect of the boundary layer and the mixing efficiency of the fuel. The flexible selection of the number of the channels can meet different thrust requirements, so that the method has great potential in engineering application.

The invention relates to a turbine modeling method based on weakening of trailing edge shock waves. The invention relates to the technical field of turbine modeling, and in view of imperfection of a turbine design method, the design complexity is reduced as much as possible. According to the method, trailing edge shock waves of an original blade profile are analyzed, the trailing edge shock waves are divided into inner tail shock waves, outer tail shock waves and reflection shock waves, under the given working condition, the strength of the three shock waves is analyzed, and the analysis condition is obtained; after shock wave intensity is analyzed, a framework is established according to specific analysis conditions. Smooth transition can be achieved in the design of the cascade, the trailing edge wave system of the cascade is adjusted, trailing edge shock waves are weakened, and losses are reduced.