10results about How to "Improve design rationality" patented technology

The invention relates to the technical field of electromagnetic interference, in particular to a grounding method for suppressing electromagnetic interference of a nuclear power instrument control cable based on a Cidson law. The method comprises the following steps: S1, evaluating an electromagnetic environment around the instrument control cable of the nuclear power station through a spectral analysis method, and determining a main interference source and an affected equipment position; s2, optimizing the design of the grounding network based on the electromagnetic environment according to a Souderson law, and enabling the grounding resistance in the grounding network to be kept in a safe range; and S3, after the grounding network is actually installed in the instrument control cable system of the nuclear power station according to the planning and design requirements, verifying the effectiveness of the grounding network through grounding resistance measurement. According to the design of the invention, through detailed electromagnetic environment evaluation and spectrum analysis, the method can accurately identify a main interference source and an influence range thereof. The ground resistance can be effectively controlled by optimizing the design of the ground network by means of the Cibson law.

The invention discloses an automatic test method and device for map operation response, equipment and a medium, and belongs to the technical field of Internet. The method comprises the following steps: acquiring a current tile serial number of a map display area; wherein the tile serial number is an index relationship established in advance based on the tile map position and the serial number; simulating operation data on the map to obtain an actual tile serial number after operation; resolving the operation data, and determining a target tile serial number according to a resolving result; and determining a test result of map operation response according to a comparison result of the actual tile serial number and the target tile serial number. According to the technical scheme, the target tile can be accurately calculated and checked with the actual tile by indexing the map tiles and aiming at any initial position and any map operation in different map resources, so that the accuracy of a test result, the design rationality of a test framework and the maintainability of a test code are improved.

The embodiment of the invention discloses a uniformity prediction method suitable for a pure hydrogen micro-mixing combustion chamber nozzle array. A specific embodiment of the method comprises the following steps: acquiring a micro mixing pipe structure information set and nozzle structure information; for each micro mixing pipe in the micro mixing pipe set, the following generation steps are executed: carrying out grid division on the micro mixing pipes to obtain micro mixing pipe grid information; performing grid size evaluation processing on the micro mixing pipe grid information to obtain a grid evaluation value; generating a micro mixing tube uniformity coefficient group; determining a cold-state heat conduction physical property parameter set; generating a cold-state nozzle uniformity coefficient; generating a cold-state nozzle uniformity coefficient; and in response to the fact that the cold-state nozzle uniformity coefficient is larger than the preset nozzle uniformity coefficient threshold value, geometric structure adjustment is conducted on the nozzle. According to the implementation mode, the accuracy of nozzle array prediction can be improved, the tempering condition is avoided, the design reasonability of the micro mixing pipe and the nozzles is improved, and damage to the pure hydrogen gas turbine is avoided.

The present invention relates to the technical field of parameterized simulation model design, and in particular to a parameterized simulation model design method and system based on a smart bed. The method comprises the following steps: performing internal logic relationship analysis on the functional design requirement data of the smart bed and mapping the functional test boundary parameters between different functional modules to obtain the functional test boundary parameters; performing functional scenario test data collection on the functional test boundary parameters, and then performing scene function execution abnormality identification to obtain scene function execution abnormality data; performing functional test balance point correction on the scene function execution abnormality data to obtain scene function balance point correction data; performing parameterized simulation model design on the scene function balance point correction data and performing automated firmware design to obtain the smart bed scene parameter logic firmware. The present invention makes the parameterized simulation model design technology more perfect by optimizing the parameterized simulation model design technology.

The utility model discloses a kind of electric compressor, air conditioner and vehicle, electric compressor includes: casing, driving component and bearing seat, low-pressure chamber is equipped in casing, casing has the air inlet channel being communicated with low-pressure chamber;Driving component includes motor and crankshaft, motor is located in low-pressure chamber, motor is cooperated with crankshaft to drive crankshaft rotation;Bearing seat is located in the support bottom wall of low-pressure chamber, bearing seat is equipped with the installation cavity for installing first support bearing, first support bearing is sleeved on the end of crankshaft;Wherein, the part of support bottom wall located on the side of bearing seat away from air inlet channel is defined as positioning plane, in the axial direction of crankshaft, at least part of the cross section of air inlet channel is located on the side of positioning plane away from driving component, cross section and the extension plane of positioning plane are set at angle. Thus, the shielding influence of stator to the airflow flowing into low-pressure chamber can be reduced, the suction pressure loss is improved, and the performance of electric compressor is improved.

The invention discloses a 3,180-slot and twenty-eight-pole symmetrical eight-branch three-phase half-wave winding connection method, and relates to the field of alternating current windings. The invention aims to solve the problem that an existing 3,180-slot and twenty-eight-pole motor does not have symmetrical eight branches. All slots are divided into six phase belts according to a phase belt sequence of A, Z, B, X, C and Y by taking 5-5-4-5-4-5-5-4 as a cycle number, each phase belt occupies a 60-degree electrical angle, an A-phase winding is formed by the A phase belt and the X phase belt, a B-phase winding is formed by the B phase belt and the Y phase belt, a C-phase winding is formed by the C phase belt and the Z phase belt, and the difference between the phase windings is 120 degrees, so that the three-phase symmetry is ensured. 256 winding bars are arranged in each phase, potential amplitudes of the winding bars are equal, potential phases can be divided into 32 types, the number of the winding bars in each potential phase is 8, the connection method ensures that the 8 winding bars in each potential phase are respectively located in 8 branches, so that the combined potentials of the connected winding bars in the 8 branches are equal in size and phase, and the winding bars are symmetrical eight-branch windings.

The present invention provides a method and device for determining a database sub-library and table sub-strategy. The method uses the historical data volume of a database table in a target database in combination with a data prediction model to predict the total data volume in the target database and obtain the total data volume change trend. According to the total data volume change trend, the peak time point when the total data volume reaches a threshold is determined. The historical data in the database table is periodically segmented to obtain multiple groups of historical data corresponding to different segmentation periods. For each segmentation period, each group of historical data corresponding to the segmentation period is verified to obtain corresponding verification results. According to the verification results corresponding to all segmentation periods, it is determined whether the historical data in the database table has changed, and the sub-library and table sub-strategy is determined according to the judgment result. According to the peak time point and the sub-library and table sub-strategy, the sub-library and table sub-strategy of the target database is determined to improve the design rationality of the sub-library and table sub-strategy, thereby ensuring the stable operation of the application system.

This invention discloses an 800kV GIS (Gas-Insulated Switchgear) dual-sealing structure with separate main and auxiliary sealing functions, and a life-cycle design method suitable for high-altitude desert environments. The structure includes a GIS equipment shell and a flange. The flange is integrally installed at the connection end of the GIS shell. The flange connection area features a main sealing structure and an auxiliary sealing structure. The main sealing structure is located closer to the GIS shell forming the air chamber, while the auxiliary sealing structure is located closer to the external environment. This invention's dual-sealing structure with separate main and auxiliary sealing functions significantly reduces the risk of SF₆ leakage in the GIS equipment, improves the reliability of the sealing structure in low-pressure environments at high altitudes, delays the aging of sealing materials, and enhances the adaptability of the GIS equipment to windy, sandy, and temperature-differential environments.

The invention relates to the technical field of mechanized operation vehicle road times and operation areas, and discloses a mechanized operation vehicle road times and operation area algorithm and system. By defining the mechanical operation vehicle as the working vehicle, the algorithm terms are simplified, the specifications of the discharge ports are assumed to be consistent, the calculation complexity is reduced, and the universality is improved. The space relation between the feeding face and the discharging face is determined, and a foundation is laid for calculation of the working range of the discharging port. By marking the bevel edge and the end point, a geometric model is constructed by using the intersection point of the extension line and the ground, and the vertical distance between the material edge and the ground is calculated. The effective working length of the discharge port is calculated by combining a similar triangle principle, and space mapping is completed by measuring the lengths of a plurality of key line segments to adapt to different working heights. And finally, the total effective working length of the discharge port is calculated, and data support is provided for path planning and efficiency analysis.

The present invention discloses an intelligent algorithm and application for the distribution of multiple parts when they are combined on a mold, including the following steps: S1, randomly grouping the three-dimensional model parts on the mold to obtain several groups of random samples; S2, distributing the random samples of multiple parts to the mold space to perform random distribution algorithm experiments; S3, excluding the areas where the parts collide and interfere with each other to obtain the assembly areas of each three-dimensional model part; S4, according to the logical relationship of the mold design and the association relationship between the parts, the boundary conditions of the mold parts and the constraints between them, the assembly path and coordinate position between the parts are established. The present invention greatly reduces the repetitive labor of trial and error of design engineers in the design process, improves the design efficiency and mold accuracy. Verify the correctness of the product and product process design more quickly. There is no need to design and calculate from scratch, improve design efficiency and rationality, the system quickly and efficiently learns and accumulates knowledge, and outputs design results faster and better.