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47results about How to "Reduce design error" patented technology

Parametric two-dimensional drawing/three-dimensional model intelligent conversion method and system

The invention discloses a parametric two-dimensional drawing/three-dimensional model intelligent conversion method. The method comprises the steps that all design parameters of a plotting image are stored in a database; the design parameters, in the database, of the plotting image are extracted and cached, the design parameters are assigned to two-dimensional drawing plotting elements or three-dimensional model setup elements, drawing software is called, and a plotting image two-dimensional drawing is made or a plotting image three-dimensional model is set up according to two-dimensional drawing plotting element parameters; and the two-dimensional drawing plotting element parameters or three-dimensional model setup element parameters are cached, the cached two-dimensional drawing plottingelement parameters or three-dimensional model setup element parameters are stored into the database, and the database is updated. Through the method adopting the technical scheme, a two-dimensional drawing making module and a three-dimensional model setup module share the same design parameter database and call identical design parameters, therefore, the generated two-dimensional drawing and the three-dimensional model can correspond in design parameter and structure, drawing efficiency is effectively improved, and drawing errors are reduced.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP

Intelligent platform gate parameterized two-dimensional drawing/three-dimensional model conversion method and system

The invention discloses an intelligent platform gate parameterized two-dimensional drawing / three-dimensional model conversion method. The method includes: storing all platform gate design parameters in a database; extracting and caching the platform gate design parameters in the database, assigning the design parameters to a two-dimensional drawing output element or a three-dimensional model establishment element, calling drawing software, and drawing a two-dimensional drawing or establishing a three-dimensional model according to parameters of the two-dimensional drawing output element; caching the parameters of the two-dimensional drawing output element or the three-dimensional model establishment element, storing the cached parameters of the two-dimensional drawing output element or thethree-dimensional model establishment element into the database, and updating the database. By the technical scheme, a two-dimensional drawing module and a three-dimensional model establishing moduleshare the same design parameter database and call the same design parameters, design parameter and structural correspondence of the generated two-dimensional drawing and the three-dimensional model can be realized, drawing efficiency is effectively improved, and drawing errors are reduced.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP

Transitional flow channel structure of multi-stage centrifugal pump and design method of transitional flow channel structure

The invention relates to the technical field of pump body hydraulic design, in particular to a transitional flow channel structure of a multi-stage centrifugal pump and a design method of the transitional flow channel structure. The transitional flow channel structure is formed by splicing a plurality of stages of transitional flow channels. Each stage of transitional flow channel comprises a pumping chamber, a diffusion elbow and a water absorbing chamber, wherein the pumping chamber communicates with the water absorbing chamber, and the diffusion elbow is arranged on the outer side of the water absorbing chamber; and a water inlet of the diffusion elbow communicates with a pumping chamber of the same stage, a water outlet of the diffusion elbow communicates with a next stage of water absorbing chamber, the water absorbing chamber is in a full spiral shape, and the diffusion elbow is annular. By adopting the annular diffusion elbows, the transitional flow channel is smoother, the size is greatly reduced, and a pump body is compact in structure and better in intensity. In addition, one full-spiral water absorbing chamber is additionally arranged in front of an inlet of a next stage of impeller, the fluid absorbing performance is better, and the flowing speed is even and stable.
Owner:兰州兰泵有限公司

Intelligent aided design system for platform door

The invention discloses an intelligent aided design system for a platform door. According to the system, all design parameters of the platform door are stored in a database; the design parameters of the platform door in the database are extracted and cached, the design parameters are assigned to a first-class drawing plotting factor or a second-class drawing building factor, plotting software is called, and a first-class drawing of the platform door is plotted according to first-class drawing plotting factor parameters, or a second-class drawing for building the platform door is plotted according to second-class drawing building factor parameters; the first-class drawing plotting factor parameters or the second-class drawing building factor parameters are cached, the cached first-class drawing plotting factor parameters or second-class drawing building factor parameters are stored to the database, and the database is updated. The technological scheme further discloses application of the intelligent aided design system. A first-class drawing plotting module and a second-class drawing building module share the same database, and the same design parameters are called so that the design parameters and the structure of the generated first-class drawing can correspond to those of the generated second-class drawing; the plotting efficiency is effectively improved, and the plotting error is reduced.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP

High temperature cooler heating power check method and system

ActiveCN109959283AReduce the determination of qualitative physical propertiesReduce design errorHeat exchange simulationDesign optimisation/simulationTemperature differenceEngineering
The invention relates to a high temperature cooler heating power check method and system. The method comprises the following steps that cooler inlet parameters and the quantity of heat exchange tube groups in a cooler are obtained, wherein each heat exchange tube group comprises a plurality of rows of tube bundles; and the cooler inlet parameters are used as an inlet condition of first-row tube bundles, an outlet condition of each row of tube bundles is used as the inlet condition of the next-row tube bundles, and heat transfer and pressure drop of all rows of tube bundles are calculated row by row. By means of the high temperature cooler heating power check method and system, according to the thought of calculating heating power characteristics of all tube bundles row by row in a heat exchanger, determination of high-temperature gas qualitative properties under the large temperature difference condition can be reduced, and the design error is reduced; and heat transfer, pressure dropand heat exchange tube wall temperature distribution, which cannot be given by a traditional heat exchanger heating power design checking method, inside the heat exchanger can be given, and it is conducive to timely find problems in the heat exchange scheme design stage to make modification and adjustment.
Owner:中国空气动力研究与发展中心超高速空气动力研究所

Wire harness production and assembly system of digital electrical complete sets of products

The invention relates to a wire harness production and assembly system of digital electrical complete sets of products. The wire harness production and assembly system comprises an MES system, whereinthe MES system is connected with a product design system for carrying out wiring design on the electrical complete sets of products, and a production execution system used for producing the wire harness required in the electrical complete sets of products, and further comprises a process parameter library for storing the wire harness wiring process of each type, wherein the product design systemand the process parameter library are connected through a digital twin-generation system; final assembly simulation of electrical complete sets of products can be carried out in the design stage, andthe electrical components in the electrical equipment can be placed in the optimal positions, wire binding workers do not need to carry out secondary arrangement, the professional requirements of thewire binding workers are reduced, and the labor cost is reduced; meanwhile, the automatic dosing production of the wire harnesses is realized, the wire harnesses can be produced according to needs, the wire harness waste can be effectively avoided, the raw materials are saved, and the production cost is reduced. The method has the advantages that the transformation of electrical industry manufacturing to digital intelligent manufacturing from traditional manual operation is realized.
Owner:南京宏晟智能科技有限公司

Design method of uplift bearing capacity on short pile foundation of electric transmission line

The invention relates to a design technology of the uplift bearing capacity of a shallow buried short pile foundation in electric transmission line construction engineering. According to the design method of the uplift bearing capacity on the short pile foundation of an electric transmission line, according to the principle of soil mechanics and shear strength index, pile side friction is established, the lateral friction changes linearly along the buried depths of piles, according to a standard value of the shear strength index, a standard value of pile peripheral friction is calculated, thecharacteristic weight of soil is introduced, thus a design model of the uplift bearing capacity on the short pile foundation based on the probability theory is established, finally, according to the shear strength index of the soil under different geological conditions, classification is conducted, uplift bearing capacity curves of the short piles with different pile diameters and pile lengths aredrawn, and design parameters of the short pile foundation are obtained. The design technology has the advantages that according to an actual pile foundation stress mechanism, the calculation error caused by using constant frictional resistance is avoided, the design error is effectively lowered, the accuracy is improved, and the working efficiency is greatly improved.
Owner:POWERCHINA FUJIAN ELECTRIC POWER SURVEY & DESIGN INST CO LTD

Test method for simulating gravel stratum grouting diffusion radius under flowing water environment

InactiveCN109211736AEasy to controlDiffusion parameters are highly accurateSurface/boundary effectSlurryMaterials science
The invention discloses a test method for simulating gravel stratum grouting diffusion radius under flowing water environment, and belongs to the technical field of the grouting material performance test equipment. The method is characterized by comprising the following steps: a, collecting gravel samples at the field, and filling in a stainless steel tank body; b, vertically inserting a groutingpipe and a water injection pipe into the gravel sample, and adjusting overflow pressure of an overflow valve; c, respectively starting the grouting pump and the water injection pump; d, observing seepage characteristics of the grouting seriflux in the gravel samples; and e, taking out the gravel samples after the grouting is ended for 24 hours, observing diffusion characteristics of the grouting seriflux in the gravel samples, and measuring axial diffusion distance of the grouting seriflux in the gravel samples. The visual simulation of the diffusion process of the grouting seriflux in the gravel stratum under the flowing water environment is realized, the diffusion rule of the seriflux in the gravel stratum under the flowing water environment can be quantitatively described, and the testmethod has the features of being good in flowing water environment stability, and high in seriflux diffusion parameter accuracy.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY

Method for controlling drawing of excavation outline in three-centered arch and fork construction of sinking and driving engineering

The invention discloses a method for controlling the drawing of an excavation outline in three-centered arch and fork construction of sinking and driving engineering. The method comprises the steps of setting an arch top control line and a beveled-edge wall control line, calibrating a springing point, drawing a springing line, calibrating an arch top locating point, drawing a line by using a line rope and the like. According to the method disclosed by the invention, data used by line drawing can be reduced to a large extent, the number of the data can be reduced from the original more than 400 to just about 10, the line drawing can be very simple and quick, the working amount is reduced by tens of times, not only is the labor intensity of a worker reduced, but also the line drawing work efficiency is increased; and the excavation outline, which is drawn by the method, of a three-centered arch roadway is accurate in location, the outline is a continuous smooth curve, the design error is small, the line drawing accuracy is effectively increased, thus the excavation forming quality of an arch part and a fork of the three-centered roadway can be ensured, and the phenomena of over-excavation and under-excavation can be prevented from happening.
Owner:CHONGQING JUNENG CONSTR GRP +1

Method and device for determining performance parameters of water pump and electronic equipment

The invention provides a method and device for determining performance parameters of a water pump and electronic equipment. The method comprises the steps that design parameters of the water pump areobtained; Using a plurality of preset processing models to respectively take the design parameters as model input to determine a plurality of result data, the plurality of preset processing models being a plurality of pre-trained neural network models with different structures; And determining the performance parameters of the water pump corresponding to the design parameters through multi-model fusion and a plurality of result data. In the embodiment of the specification, a plurality of neural networks with different structures are subjected to model training by utilizing sample data in advance to obtain a plurality of different preset processing models; Using the plurality of preset processing models to replace complex numerical simulation operation to determine a plurality of result data; Finally, the performance parameters of the water pump are determined through multi-model fusion of the multiple result data, and therefore the technical problems that in an existing method, the processing efficiency is low, and errors are large are solved.
Owner:苏州尼昂科技有限公司

Test device for simulating grouting diffusion radius of gravel formation under dynamic water environment

The invention discloses a test device for simulating a grouting diffusion radius of a gravel formation under dynamic water environment, belonging to the technical field of test equipment of grouting material performance. The test device comprises a support and a steel stainless box body, and is characterized by further comprising a grouting pump and a water injection pump, wherein the steel stainless box body comprises a first front baffle, a second front baffle, a first semi-circular half close tube, a second semi-circular half close tube, and a rear cover, the steel stainless box body is internally provided with a sand block plate which is close to the rear cover, the sand block plate is connected with a telescopic screw, the telescopic screw penetrates the rear cover, the steel stainless box body is provided with a grouting hole and a water injection hole, the grouting hole is connected with a grouting tube, the grouting tube and the grouting pump are connected, the water injectionhole is connected with a water injection tube, and the water injection tube and the water injection tube are connected. The test device can quantitatively describe and analyze diffusion rules of groutin gravel formation under dynamic water environment, thereby greatly reducing a design error of a grout diffusion radius in engineering design.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY

A line drawing method for controlling the excavation contour line in the construction of three-center circular arch fork in shaft and roadway engineering

The invention discloses a method for controlling the drawing of an excavation outline in three-centered arch and fork construction of sinking and driving engineering. The method comprises the steps of setting an arch top control line and a beveled-edge wall control line, calibrating a springing point, drawing a springing line, calibrating an arch top locating point, drawing a line by using a line rope and the like. According to the method disclosed by the invention, data used by line drawing can be reduced to a large extent, the number of the data can be reduced from the original more than 400 to just about 10, the line drawing can be very simple and quick, the working amount is reduced by tens of times, not only is the labor intensity of a worker reduced, but also the line drawing work efficiency is increased; and the excavation outline, which is drawn by the method, of a three-centered arch roadway is accurate in location, the outline is a continuous smooth curve, the design error is small, the line drawing accuracy is effectively increased, thus the excavation forming quality of an arch part and a fork of the three-centered roadway can be ensured, and the phenomena of over-excavation and under-excavation can be prevented from happening.
Owner:CHONGQING JUNENG CONSTR GRP +1

A design method for uplift bearing capacity of short pile foundations of transmission lines

The invention relates to a design technology of the uplift bearing capacity of a shallow buried short pile foundation in electric transmission line construction engineering. According to the design method of the uplift bearing capacity on the short pile foundation of an electric transmission line, according to the principle of soil mechanics and shear strength index, pile side friction is established, the lateral friction changes linearly along the buried depths of piles, according to a standard value of the shear strength index, a standard value of pile peripheral friction is calculated, thecharacteristic weight of soil is introduced, thus a design model of the uplift bearing capacity on the short pile foundation based on the probability theory is established, finally, according to the shear strength index of the soil under different geological conditions, classification is conducted, uplift bearing capacity curves of the short piles with different pile diameters and pile lengths aredrawn, and design parameters of the short pile foundation are obtained. The design technology has the advantages that according to an actual pile foundation stress mechanism, the calculation error caused by using constant frictional resistance is avoided, the design error is effectively lowered, the accuracy is improved, and the working efficiency is greatly improved.
Owner:POWERCHINA FUJIAN ELECTRIC POWER SURVEY & DESIGN INST CO LTD

A method and system for intelligent conversion of parametric two-dimensional drawings/three-dimensional models of platform doors

The invention discloses a parameterized two-dimensional drawing / three-dimensional model intelligent conversion method of a platform door, comprising: storing all design parameters of the platform door in a database; extracting and caching the design parameters of the platform door in the database, and assigning the design parameters to 2D drawing drawing elements or 3D model building elements, call the drawing software, draw 2D drawings of the platform door or build a 3D model of the platform door according to the parameters of the 2D drawing drawing elements; cache the 2D drawing drawing element parameters or 3D model building elements Parameters, store the cached 2D drawing drawing element parameters or 3D model building element parameters into the database, and update the database. In the method of the technical solution of the present invention, by allowing the two-dimensional drawing drawing module and the three-dimensional model building module to share the same design parameter database and calling the same design parameters, the design parameters and structures of the generated two-dimensional drawings and three-dimensional models can be made to correspond , which effectively improves the drawing efficiency and reduces the drawing error.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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