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83 results about "Basic dimension" patented technology

In a technical drawing, a basic dimension is a theoretically exact dimension, given from a datum to a feature of interest. In Geometric dimensioning and tolerancing, basic dimensions are defined as a numerical value used to describe the theoretically exact size, profile, orientation or location of a feature or datum target.

Method for solving rigidity of plate spring by using automatic dynamic analysis of mechanical system (ADAMS)

The invention discloses a method for solving rigidity of a plate spring by using an automatic dynamic analysis of mechanical system (ADAMS). The method comprises the following steps of: step one, determining basic dimension parameters of the plate spring according to a design paper of the plate spring; step two, establishing a three-dimensional model by employing CATIA software to perform reasonable segmentation, and selecting necessary coordinate points; step three, establishing a Point hard-point, a Box block and a Beam beam in an ADAMS/View, putting forward an equivalent middle surface method in attribute setting of the Beam beam, and establishing contact force Contact; and step four, setting a simulation analysis environment of a stress-deformation curve of the plate spring, and employing a method for loading loads through contact of a flat plate and a spheroid to obtain a simulation curve. The method solves the problems in establishing a plate spring flexible body model through the ADAMS software, and the problems in performing simulation setting on the stress-deformation curve of the plate spring flexible body model, and has important meanings for improving the modeling, analyzing and solving accuracies and the calculation speed of mechanical simulation software.
Owner:HUAIYIN INSTITUTE OF TECHNOLOGY

Method and system for making tailored garments

A method for allowing a user to make a tailored garment (M) comprises the following steps: preparing at least one image (I) comprising a sample garment (C) of the same type as the tailored garment (M) to be made and also comprising a reference object (O) with actual standardized dimensions (M/,M8); measuring on the at least one image (I) the dimensions of the reference object (O) and a set of basic dimensions (M1,M2,M3,M4,M5,M6) of the sample garment (C); calculating the actual dimensional values of the set of basic dimensions of the sample garment (C) as a function of: the dimensional values of the set of basic dimensions (M1,M2,M3,M4,M5,M6) of the sample garment (C) measured on the image (I), the dimensional values of the reference object (O) and the actual dimensions (M7,M8) of the reference object (O); selecting the aesthetic features of the tailored garment (M) to be made; transmitting to a tailoring apparatus (4) the calculated actual dimensional values of the set of basic dimensions of the sample garment (C) and the selected aesthetic features; performing on the tailoring apparatus (4) a sequence of operations of cutting and sewing the tailored garment (M), to make the tailored garment (M) so its basic dimensions are substantially equal to the previously calculated actual dimensional values of the set of basic dimensions of the sample garment (C).
Owner:IN PRO DI INGHIRAMI PRODUZIONE DISTRIBUZIONE

Online user relation measurement and classification method based on three-dimensional relation strength model

InactiveCN103995909APractical methodMake up for the lack of binary one-way relationship strengthData processing applicationsRelational databasesRelation classificationBasic dimension
An online user relation measurement and classification method based on a three-dimensional relation strength model includes the step of setting up the three-dimensional relation strength model, the step of setting up a visualized model of relation strength, the step of measuring the social network user relation and the step of social user classification and recommendation. Social relations of users in a social network are abstracted into three basic dimensions, namely, the structure dimension, the psychological dimension and the tool dimension, and the dimensions are continuous variables from zero to one. Vectors of the three dimensions are mapped to three basic colors, then the problem of the relation strength can be converted into the color problem, and therefore visualized analysis on the relation strength can be conducted. According to the different relation classifications, the relations between the users are more accurately classified, and therefore basis is provided for subsequent processing, and the user classification and recommendation method which is more practical, more convenient to implement and more accurate can be provided for social network service platforms such as the SNS.
Owner:SOUTHEAST UNIV CHENGXIAN COLLEGE +1

Assembly position precision analysis method considering geometric tolerance and deformation influence

The invention discloses an assembly position precision analysis method considering geometric tolerance and deformation influence. The method comprises the following steps: determining a closed ring of a to-be-analyzed part, and constructing an assembly dimension chain model according to an assembly relationship; according to the assembly dimension chain model, setting the dimension tolerance and the geometric tolerance of each part forming ring of the to-be-analyzed part; simulating part deformation under the action of gravity by a finite element method, and extracting discrete node coordinate values of key characteristics of the deformed part; fitting discrete node coordinate values by adopting a least square method, and obtaining the deformation amount of a ring formed by the deformed part; according to the deformation of the deformed part forming ring, modifying the basic size value of the part forming ring; simulating the size distribution and tolerance range of the closed ring by adopting a Monte Carlo random sampling method; and detecting whether the closed ring meets the crankshaft assembly position precision requirement or not. According to the method, whether the tolerance of each currently arranged part forming ring can meet the assembly position precision can be analyzed.
Owner:NANJING UNIV OF SCI & TECH

Spacecraft autonomous rendezvous control system ground simulation test method

Provided is a spacecraft autonomous rendezvous control system ground simulation test method, belonging to the spaceflight control ground simulation field. The method comprises the steps of: 1) determining a basic dimension corresponding physical quantity similarity ratio coefficient according to the relation between verification object task parameters and ground test system parameters; 2) according to the similarity ratio coefficient, respectively establishing kinetic equations of a target simulator and tracking simulator motion in computer simulation; 3) connecting the simulator kinetic equation, the simulator (including control), a motion measuring sensor and an autonomous rendezvous controller to form a ground test closed loop system; and 4) controlling the simulator to track the motion track solved by a kinetic equation in the computer, and reproducing a spacecraft autonomous rendezvous motion process in a ground test room. The spacecraft autonomous rendezvous control system ground simulation test method lays a theoretical foundation for an autonomous rendezvous control semi-physical simulation test, and can simultaneously reflect simulator and tracking spacecraft absolute and relative motion characteristics on the ground, and verify an omnidirectional autonomous rendezvous control task.
Owner:BEIHANG UNIV

Manufacturing method of high-temperature tensile sample

The invention relates to a manufacturing method of a high-temperature tensile sample. The manufacturing method includes the steps of firstly, rounding is performed on the nominal diameter D of a threaded connecting section to allow the nominal diameter D to be close to an original sample width a0 and conform to the dimension value regulated in GB/T 196 General Purpose Metric Screw Threads Basic Dimensions; secondly, the original width b0 of a test section is determined, the cross section area of a high-temperature tensile sample clamp section is set as S1, and the cross section area of the test section is set as S0; b0m is not larger than 0.7854D1<2>/1.1a0 under the requirement that S1 is not smaller than 1.1S0; the value, closest to the b0m, of b0 is taken and rounded off to 0.5mm; thirdly, the threaded connecting sections at two ends of the high-temperature tensile sample are machined into cylinders, and the original rectangular cross section of the middle test section is kept unchanged; fourthly, the threads of the threaded connecting sections at two ends of the high-temperature tensile sample are machined, and the major diameter dimension of the threads is D. The manufacturing method has the advantages that the coaxiality of the manufactured sample and a tensile testing machine and sample centering performance in the thickness direction can be increased, test result accuracy is guaranteed therefore, tensile test operation convenience is achieved, and test safety is increased.
Owner:ANGANG STEEL CO LTD

Device and method for measuring inclined hole position dimensions

The invention discloses a device and method for measuring inclined hole position dimensions. The device comprises a positioning support component and an elastic measuring shaft and is used for measuring the inclined hole position dimensions LX and LY of a part. The method includes: placing a to-be-measured part on a flat plate, mounting the elastic measuring shaft at the vertical hole phi D1k of the part, mounting the positioning support component at the inclined hole phi Dxk of the part, allowing the positioning support component to rotate around the center of the inclined hole phi Dxk, recording the minimum deflection position, away from a zero position, of a dial indicator pointer, taking the deflection quantity of the minimum deflection position as the deviation value of the inclined hole position dimensions, and adding the deflection quantity of the dial indicator to the basic dimensions of the inclined hole position dimensions or subtracting the deflection quantity of the dial indicator from the basic dimensions of the inclined hole position dimensions to obtain the actual inclined hole position dimensions of the part. The device has is suitable for being used by inspectors on a production site, capable of measuring the inclined hole position dimensions under precision level IT7, simple to operate, fast and convenient in measuring and capable of being widely popularized and used.
Owner:贵州凯星液力传动机械有限公司

Partial erasing liquid-crystal handwriting board device and forming method thereof

ActiveCN109932834AFast implementation of partial erasurePartial Erase ImplementationNon-linear opticsInput/output processes for data processingInfraredBasic dimension
The invention discloses a partial erasing liquid-crystal handwriting board device and a forming method thereof. The partial erasing liquid-crystal handwriting board device comprises a liquid-crystal handwriting board and an erasing pen. The liquid-crystal handwriting board includes a substrate, a first conductive layer, an infrared absorbing material layer, a liquid crystal layer, a second conductive layer, and a flexible transparent substrate. The first conductive layer and the infrared absorbing material layer are arranged on the substrate in a basic dimension consistence manner. The first conductive layer and the second conductive layer are transparent conductive layers; the second conductive layer is formed on the flexible transparent substrate; and the substrate and the flexible transparent substrate jointly clamp the liquid crystal layer to form a liquid crystal box of the liquid-crystal handwriting board. The erasing pen includes an infrared emitting light source and a control switch. According to the partial erasing liquid-crystal handwriting board device, the partial erasing is realized by means of non-contact photothermal conversion; the erasing efficiency is high; the device is convenient to use; and energy-saving and low-cost effects are realized.
Owner:JIANGSU JICUI INTELLIGENT LCD TECH CO LTD

Method for optimally designing powder spray room based on fluent software

The invention provides a method for optimally designing a powder spray room based on fluent software, which comprises the following steps of: calculating the basic dimensions of the powder spray room according to field conditions, preliminarily determining the position of each input and outlet according to experience, and parameterizing the position; compiling the parametric input interface of the powder spray room by using VB (Visual Basic), inputting the parameters obtained in the calculation, and further generating APDL (ANSYS Parameter Design Language) codes; calling the batch program of ANSYS by using VB and generating APDL codes to perform mesh generation on a created powder spray room model, and generating a CBD format file; reading the CBD format file by the Fluent software, and simulating the model in an analogue way; and modifying the parameter model according to the analogue simulation result, and repeating the above steps until an optimal result is obtained. The method has the advantages that because the powder spray room is simulated in an analogue way by using the technical scheme, each parameter of the powder spray room is adjusted according to the simulation result, and the analogue simulation is repeated for many times until one optimal design of the powder spray room is obtained.
Owner:天津七所高科技有限公司

Hole system position determining method for cylinder body of engine

The embodiment of the invention provides a hole system position determining method for a cylinder body of an engine. The method comprises the steps of simulating hole system machining and a hole system position determining process, determining a relationship between hole system position coordinates and a hole center distance dimension, establishing a dimension-chain two-dimensional model of the relationship between the hole system position coordinates and the hole center distance dimension, and determining a closed ring; designing the dimension of the closed ring and the position of a reference hole, and establishing a two-dimensional model of the hole system machining position coordinates; obtaining the dimensions of the hole system machining position coordinates according to the two-dimensional model of the hole system machining position coordinates. According to the method, by establishing the two-dimensional model of the hole system machining position coordinates, the basic dimension, maximum limit dimension and minimum limit dimension of the machining position coordinates of a hole system can be visually and accurately presented. By establishing the dimension-chain two-dimensional model, determining the closed ring, based on the design of the closed ring and the reference hole, the two-dimensional model of the hole system machining position coordinates is established, andthe efficiency and accuracy of designing the dimensions of the hole system machining position coordinates can be improved.
Owner:XIAMEN UNIV OF TECH

Method and system for making tailored garments

A method for allowing a user to make a tailored garment (M) comprises the following steps: preparing at least one image (I) comprising a sample garment (C) of the same type as the tailored garment (M) to be made and also comprising a reference object (O) with actual standardized dimensions (M7,M8); measuring on the at least one image (I) the dimensions of the reference object (O) and a set of basic dimensions (M1,M2,M3,M4,M5,M6) of the sample garment (C); calculating the actual dimensional values of the set of basic dimensions of the sample garment (C) as a function of: the dimensional values of the set of basic dimensions (M1,M2,M3,M4,M5,M6) of the sample garment (C) measured on the image (I), the dimensional values of the reference object (O) and the actual dimensions (M7,M8) of the reference object (O); selecting the aesthetic features of the tailored garment (M) to be made; transmitting to a tailoring apparatus (4) the calculated actual dimensional values of the set of basic dimensions of the sample garment (C) and the selected aesthetic features; performing on the tailoring apparatus (4) a sequence of operations of cutting and sewing the tailored garment (M), to make the tailored garment (M) so its basic dimensions are substantially equal to the previously calculated actual dimensional values of the set of basic dimensions of the sample garment (C).
Owner:IN PRO DI INGHIRAMI PRODUZIONE DISTRIBUZIONE

Intelligent foot sole measuring instrument for scanning measurement

The invention discloses an intelligent foot sole measuring instrument for scanning measurement. The intelligent foot sole measuring instrument for scanning measurement comprises a measuring device and a data processing device, wherein the measuring device comprises a test desk and a scanner arranged under the test desk, and the scanner scans the shape of a foot sole in a noncontact mode through a scanning window formed on the test desk; the data processing device comprises a data acquisition module, a data processing module, a data display module and a data printing module; the parameters of the data acquisition comprise the length and width of a foot, the length of a foot arch, and the status of the foot sole; and the data processing device is connected with a terminal device of the measuring instrument. The measuring instrument analyzes scanned foot soles, and accurately and quickly measures basic dimension data of the foot soles so as to be matched with sold products; and the measuring instrument analyzes the health condition of feet, gives pertinent description prompts, and records and prints related content, so that the accurate market information is provided for enterprises, and the competitiveness of the products is improved. The measuring instrument is easy to operate, provides accurate data, and can greatly improve the efficiency.
Owner:金广华

Method and system for square object mode transformation of two-dimensional caption

InactiveCN102724444ADynamic extraction of deformation parametersGet deformation effectTelevision system detailsGeometric image transformationBasic dimensionAlgorithm
The invention, which mainly relates to processing on a caption special effect in the broadcast television program manufacturing and broadcasting fields, discloses a method and system for square object mode transformation of a two-dimensional caption. The method comprises: (1), obtaining basic dimension parameters of an original caption window and basic scale parameters; (2), dividing the window into an even number of basic units according to the basic dimension parameters of the original caption window and obtaining basic scale parameters based on the basic parameters of the caption window; (3), numbering the basic caption windows and formulating a transformation task execution sequence of all the basic caption window based on a task order; and (4), collecting a pixel point position based on a determined fixed value of each window basic unit and obtaining a new pixel point position based on the determined fixed value parameters and a transformation function f (x, y, t). Moreover, the system consists of an original information collection unit, a window dividing unit, and a rendering assignment unit; according to basic scale parameters of an original caption window, the original information collection unit and the window dividing unit divide the window into an even number of basic units; according to the basic parameters of the caption window, basic scale parameters are obtained; and the rendering assignment unit carries out assignment. According to the invention, basic information collection of a caption window enables transformation parameters to be dynamically extracted; and division of the caption window enables coordinated displaying of different caption window units to be realized, thereby realizing a caption transformation effect.
Owner:CHINA DIGITAL VIDEO BEIJING

Automatic labelling system and method of swindle call voice

PendingCN109493882ARealize automatic analysis and identificationSupervisory/monitoring/testing arrangementsSpeech recognitionBasic dimensionLabelling
The invention discloses an automatic labelling system of swindle call voice. The system comprises a basic dimension labelling module, a vocal print labelling module and a continuous voice identification labelling module. The output end of the basic dimension labelling module is connected with the input end of the vocal print labelling module and the input end of the continuous voice identificationlabelling module separately. The invention further provides an automatic labelling method of swindle call voice. The method comprises the following specific steps of basic dimension labelling, continuous voice identification and vocal print labelling. According to an intelligent voice technology, input voice data is automatically processed, the voice data is automatically analyzed and identified,the pre-labelling work for labels is conducted, in combination with manual identification, effective labelling management for target data dimension labels is conducted, communication voice data is effectively used, the application and effect of the intelligent voice technology are optimized under the call swindle scene, and meanwhile decryption and encryption transmission of the data in the labelling process is guaranteed.
Owner:NAT COMP NETWORK & INFORMATION SECURITY MANAGEMENT CENT +1

Method for power distribution device data interaction on basis of BIM technology

The invention discloses a method for power distribution device data interaction on the basis of a BIM technology, and belongs to the field of transformer station design. The method mainly comprises the following steps of a, arranging a power distribution device model in a three-dimensional digitization design platform by the specialized field of electrics; b, summarizing model information of the power distribution device model and data information generated after the arrangement of the power distribution device into interaction information to be stored into a database; c, extracting interaction information from the database by the specialized field of civil engineering; and d, transmitting the interaction information into civil engineering calculation software to complete the calculation by the specialized field of civil engineering to obtain a proper power distribution device support frame and the basic dimension; and completing the building of the support frame and a basic model in a three-dimensional platform. The data interaction among different specialized fields is realized through the three-dimensional model; the constraint of the planar design is avoided; the workload of design personnel is reduced; and the information amount is more sufficient.
Owner:POWERCHINA HEBEI ELECTRIC POWER SURVEY & DESIGN INST CO LTD

Method for quickly placing samples of ground of current collecting line

The invention discloses a method for quickly placing samples of ground of a current collecting line. The method comprises the following steps of: A, inputting coordinates of a center pile of the ground of the collector line into a CAD software, wherein the center point of the ground is O; B, marking a rotation angle theta of the ground; C, making an angle bisector of the rotation angle theta, which is an axis of the ground, and making a vertical line of the axis through the center point O of the ground, wherein the other axis bases on the vertical line, to complete the axes of the ground; D, making two parallel lines of the axes of the ground according to basic dimension given by a draw and a lateral root opening value A, wherein the distance between the parallel lines and the axes is A / 2,and making 4 edges of a pile cap according to the size of the ground; and E, using the CAD software to mark the coordinates of the intersection of the axis and the edges of the excavation bottom, inputting to a GPS measuring instrument, and placing lines according to the coordinates on spot. According to the method for quickly placing samples of the ground of the current collecting line, the needfor multiple measurements and calculations is eliminated, the error rate and work intensity are reduced, and the requirements for operators are reduced.
Owner:POWERCHINA SEPCO1 ELECTRIC POWER CONSTR CO LTD
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