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38 results about "Design structure matrix" patented technology
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The design structure matrix (DSM; also referred to as dependency structure matrix, dependency structure method, dependency source matrix, problem solving matrix (PSM), incidence matrix, N² matrix, interaction matrix, dependency map or design precedence matrix) is a simple, compact and visual representation of a system or project in the form of a square matrix.
Methods and program products for optimizing problem clustering
ActiveUS7280986B2Digital computer detailsCharacter and pattern recognitionMachine learningGenetic operator
Exemplary embodiments of the present invention are directed to methods and program products for optimizing clustering of a design structure matrix. An embodiment of the present invention includes the steps of using a genetic operator to achieve an optimal clustering of a design structure matrix model. Other exemplary embodiments of the invention leverage the optimal clustering by applying a genetic operator on a module-specific basis.
Owner:THE BOARD OF TRUSTEES OF THE UNIV OF ILLINOIS
Satellite overall plan confirmation system based on multidisciplinary optimization and realization method
ActiveCN104133932AImprove the design levelImprove performanceDesign optimisation/simulationRadio transmissionSubject analysisDecomposition
The invention discloses a satellite overall plan confirmation system based on a multidisciplinary optimization and a realization method. The satellite overall plan confirmation system comprises a satellite total technical index extraction module, a satellite total technical index distribution module, each subsystem technical requirement formation module of a satellite, a satellite system design subject decomposition module, a design structure matrix generation module, a satellite system design subject analysis modeling module, a satellite system optimal modeling module, a model simplification module, a two-stage collaborative optimization modeling module, a collaborative optimization solving module, a satellite total technical index database, a model number base line design database, a design parameter library, a model library and a satellite overall plan parameter output module. The multidisciplinary design optimization of the satellite overall plan is realized by system index extraction, design task subject decomposition, design subject analysis modeling, design structure matrix construction, satellite overall plan multidisciplinary design optimization description, model simplification and two-stage collaborative optimization modeling and solving.
Owner:CHINA ACADEMY OF SPACE TECHNOLOGY
Augmented design structure matrix visualizations for software system analysis
A design matrix structure visualization technique and tool for the study and analysis of systems, such as software systems, where the bounds of the matrix are defined by a selected focusing metric and entities forming the system are displayed in the matrix as blocks of size relative to their proportion of the selected focusing metric. Relationships between entities are illustrated by summing all relationships between individual elements forming each displayed entity. Where possible, an identifier defining the characteristic of a displayed block is also shown. Preferably, the technique and tool includes a “zoom” feature to allow a user to drill down and uncover details associated with smaller blocks as shown in the original view.
Owner:SIEMENS AG
Integrated Model-Based Safety Analysis
InactiveUS20150088476A1Speed up the processAvoid loopsError detection/correctionDesign optimisation/simulationSequence designSecurity analysis
A method for integrated model-based safety analysis includes integrating a safety analysis model into a system development model of a safety-critical system. The system development model includes model components. The safety analysis model models a failure logic separately for each of the model components. The method includes representing dependencies among the model components with a design structure matrix. The design structure matrix represents each of the model components with a row and a column and shows dependencies between model components with corresponding entries. The method also includes sequencing the design structure matrix, and identifying at least one dependency loop and loop components in the sequenced design structure matrix. The loop components are part of the at least one dependency loop.
Owner:SIEMENS AG
Universal interface system for integration optimizing software
InactiveCN101739256AEasy to reuseSolve collaborative application problemsSpecific program execution arrangementsModel managementSoftware engineering
The invention discloses a universal interface system for integration optimizing software, which comprises universal interfaces and software functional modules, wherein the universal interfaces are bridges for connecting the integration optimizing function modules and external programs; the calling of the universal interfaces can realize the functions of the software function modules; the universal interfaces comprise a document interface, an assembly interface, a computer task interface, a variable interface and a connecting interface; and the software function modules comprise a model management module, an assembly modeling module, an integration application program module, a design structure matrix module and an optimization operation module. The method can solve a problem of design of the universal interfaces of complex product integration optimizing software and provides technical support for the design of the universal interfaces of complex product integration optimizing software.
Owner:CHINA ACAD OF LAUNCH VEHICLE TECH
Two-layer genetic integer programming-based complex system DSM (Design Structure Matrix) reconstructing method
ActiveCN105550753AReduce couplingReduce manual operationsGenetic modelsComplex mathematical operationsResource utilizationGenetic programming algorithm
The invention relates to a two-layer genetic integer programming-based complex system DSM (Design Structure Matrix) reconstructing method which can be applied to the industrial fields of aerospace, cars, ships and the like. According to the method, the simultaneous optimization of the element sequence and the clustering scheme in a DSM is realized by adopting a double-segment chromosome coding technique; and layered solving is carried out on a DSM clustering problem by adopting an integer genetic programming algorithm so as to obtain a reconstructed optimal DSM. The method comprises the following steps of firstly building an optimization model through taking DSM-based contact information flow as output and carrying out two-layer optimization on the model; obtaining a preliminary DSM clustering scheme by adopting a genetic integer programming method in the first-layer reconstruction; and carrying out a second search on each cluster in the preliminary scheme by adopting the same algorithm in the second-layer reconstruction so as to obtain a final DSM reconstruction result. Therefore, the method has the advantages of simplifying the design process, shortening the development time and increasing the resource utilization rate.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Product design cloud service platform modular task reconfiguration and allocation optimization method
ActiveCN107203492AAchieve global optimization effectImprove coordination efficiencyResourcesComplex mathematical operationsDirected graphDecomposition
The invention discloses a product design cloud service platform modular task reconfiguration and allocation optimization method used for solving the technical problem of poor practicality of existing task decomposition and allocation methods. The technical scheme includes that a product collaborative design task is subjected to double decomposition, an interactive relationship of subtasks is quantitatively described by a weighted directed graph and mapped into a design structure matrix, and modular reconfiguration of the task is completed through the design structure matrix. In addition, a task allocation module is constructed, resource execution capability, innovation capability, busyness and task relative significance are evaluated by a tendency matrix, and the tendency matrix is converted into an execution module to obtain a mapping relation between the modular task and resources. A global optimization effect of task decomposition and allocation in a product collaborative design process is realized, integral coordination efficiency is improved, and high practicality is achieved.
Owner:德宏咖啡产业发展有限公司
Template switching method for construction of integrated process of product reliability, maintainability and supportability (RMS) and performance
InactiveCN102024203AEliminate couplingReduce the number of iterationsInstrumentsDirected graphProduct selection
The invention relates to a template switching method for construction of an integrated process of product reliability, maintainability and supportability (RMS) and performance. The template switching method comprises the following steps: (1) selecting an integrated process template according to the product, and by adding, deleting and modifying, constructing an initial integrated process to be optimized; (2) by using the bilateral switching relation between a process directed graph and a design structure matrix, constructing an initial design structure matrix N on the basis of determining the information dependency relation among working items; (3) solving an adjacent matrix A and a reachable matrix R corresponding to N, and a product of R and a transposed matrix RT thereof to find out a coupled set in the matrix; (4) sequencing the working items in the coupled set by a segmentation algorithm, an aggregation algorithm and a tearing algorithm; (5) regarding the coupled set as a working item to be sequenced and graded with other independent items, and forming the design structure matrix after optimization; (6) by using the bilateral switching relation between the process directed graph and the design structure matrix, switching the design structure matrix after optimization to be the integrated design process of RMS and performance to be determined; and (7) inspecting the integrated process of RMS and performance to be determined by a standard inspection list, and forming a new integrated process template for later use.
Owner:BEIHANG UNIV
Conceptual design analysis method for multidisciplinary complex product
ActiveCN108121530AImprove design efficiencyReduce lossSoftware designRequirement analysisSimulationRequirements analysis
The invention relates to a conceptual design analysis method for a multidisciplinary complex product. Against the current situation that a design stage of the multidisciplinary complex product lacks the complete modeling processes and analysis methods, the modeling analysis method that supports the whole process of the multidisciplinary complex product conceptual design phase is established through the steps of demand analysis based on a quantization matrix, functional decomposition based on a functional knowledge base, structural function mapping based on interface matching, structural reorganization based on a design structure matrix and SysML-oriented model expression, so that effective analytical ideas and theoretical support are provided for users, to reduce bad design and improve design efficiency.
Owner:BEIHANG UNIV
Customer-demand-oriented product module planning method
InactiveCN103473405ASimple module planning processFree from subjective influenceResourcesSpecial data processing applicationsStructure of Management InformationPlanning method
The invention provides a customer-demand-oriented product module planning method. The method includes: establishing a DDM (design dependency matrix) according to correspondence between customer demands and a module; dividing module association into strong one and weak one; establishing a product module DSM (design structure matrix) on the basis of DDM clustering results and inter-module association; clustering the DSM on the premise of guaranteeing customer demand clustering so as to achieve customer-demand-oriented product module planning. Module planning process is simple and susceptible to subjectivity, so that the defects of the prior art are overcome.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Augmented design structure matrix visualizations for software system analysis
A design matrix structure visualization technique and tool for the study and analysis of systems, such as software systems, where the bounds of the matrix are defined by a selected focusing metric and entities forming the system are displayed in the matrix as blocks of size relative to their proportion of the selected focusing metric. Relationships between entities are illustrated by summing all relationships between individual elements forming each displayed entity. Where possible, an identifier defining the characteristic of a displayed block is also shown. Preferably, the technique and tool includes a “zoom” feature to allow a user to drill down and uncover details associated with smaller blocks as shown in the original view.
Owner:SIEMENS AG
Modernization of legacy software systems based on modeled dependencies
ActiveUS8930919B2Well formedReverse engineeringProgram code adaptionSoftware systemSoftware engineering
Methods, systems, and computer-readable media are described herein for migrating a non-object-oriented application to an object-oriented platform. The non-object-oriented application may be received. The non-object-oriented application may be parsed into elements of the non-object-oriented application. A design structure matrix (DSM) representation of the elements may be generated. A final object model may be generated based on the DSM representation. The final object model may be mapped to a code skeleton representation of an object-oriented development environment.
Owner:THE BOEING CO
Green remanufacture-based heavy machine tool module partition method
ActiveCN108090280AClustering results are fast and reasonableGeometric CADCharacter and pattern recognitionAtomic theoryResource consumption
The invention discloses a green remanufacture-based heavy machine tool module partition method, belongs to the field of machine tool design, and particularly relates to the heavy machine tool module partition method and a heavy machine tool remanufacturing technology process. Based on an axiom design, four design domains of the axiom design are taken as a principal line and are innovatively extended to a regeneration domain. Difficulties of remanufacturing are considered in advance at a design stage, correlation and similarity of design parameters between a structural domain and the regeneration domain are comprehensively considered by adopting a design structural matrix, and an ideal heavy machine tool modular design method is sought based on a modular aggregation algorithm of an atomic theory. Improving remanufacturability of the machine tool and reducing manufacturing cost of the machine tool are taken as goals to prolong service life of the machine tool, improve competitive power of enterprises and effectively reduce resource consumption.
Owner:BEIJING UNIV OF TECH
Crane wheel set adaptive design method based on preferred number
InactiveCN104778326AAchieving Adaptive DesignSpecial data processing applicationsAdaptive designEngineering
The invention relates to a crane wheel set adaptive design method based on a preferred number. The crane wheel set adaptive design method comprises the following steps of establishing a wheel set model through Solidworks, extracting feature parameters, and generating an Excel table for sizes of a wheel set component part model; constructing a wheel set design structure matrix for the extracted feature parameters, and primarily determining main parameters and candidate main parameters of the series design of a wheel set; standardizing the parameters of the wheel set, clustering and calculating the parameters by relation distance, and constructing a design relation matrix of the wheel set; selecting and utilizing an interblock linkage method to cluster and analyze the relation matrix, further improving the series number of the preferred number of the wheel set, and adopting a series table and a configuration method to generate the Excel table for the size series of the wheel set component part model; enabling the Solidworks to call the sizes in the generated Excel table, replacing the size of the original Solidworks component part model with the required design size, and utilizing the sizes to drive the parameterizing and modeling of the Solidworks, so as to complete the adaptive design of the wheel set, and finally realize the crane wheel adaptive design based on the preferred number.
Owner:EAST CHINA JIAOTONG UNIVERSITY
Method for designing modular complex product based on spectral features
InactiveCN108932361AImprove division efficiencyRealize automatic combinationGeometric CADCharacter and pattern recognitionSingular value decompositionEngineering
The invention discloses a method for designing a modular complex product based on spectral features. The method comprises a step of taking a structure, a function and a physical association as three factors that affect the correlation strength between components, quantifying the correlation strength from the three aspects, setting a weight ratio, calculating a comprehensive correlation strength between the components, and constructing a design structure matrix, a step of combining the graph theory and applying singular value decomposition to extract first k largest spectral features of the design structure matrix and corresponding feature vectors to form a streamlined spectral mapping space, a step of using a k-means algorithm to perform clustering operation in the space to obtain a program set of module division, and a step of selecting an optimal division scheme by using an extended weighting modularity EWQ function and combining and modeling modules in the optimal scheme in a software environment to obtain a three-dimensional model of a loader working device. According to the method, products with performance and specifications in response to client requirements can be quickly achieved according to the client requirements, and the modular design of a wheel loader working device is achieved.
Owner:SHANGHAI UNIV
Change propagation influence-considered product module classification method
ActiveCN110378437AImprove efficiencyQuality improvementData processing applicationsCharacter and pattern recognitionFuzzy clustering analysisClassification methods
The invention relates to the technical field of product design in engineering change, in particular to a change propagation influence-considered product module classification method. According to thetechnical scheme provided by the invention, the change propagation influence-considered product module classification method comprises the following steps: firstly, according to actual requirements, carrying out module division on products, and dividing complex parts into a plurality of basic modules; considering a change propagation dependency relationship between modules, and establishing a weight-containing digital design structure matrix. On the above basis, a fuzzy clustering analysis method is used for clustering the change modules, and clustering results are hierarchical. The change propagation characteristics among the hierarchical modules are analyzed. According to the method, the change propagation is subjected to classification research. Therefore, the effects of reducing the module change complexity and improving the module change speed are achieved.
Owner:XIAN TECHNOLOGICAL UNIV
Product structure design structure matrix partitioning method
InactiveCN104572590AImprove accuracyGenetic modelsComplex mathematical operationsDiagonalComputer science
The invention provides a product structure design structure matrix (DSM) partitioning method. The partitioning method adopts an improved genetic algorithm, a fresh fitness function is established, in other words, the minimization of the sum of distances between all elements of a DSM model and the diagonal line serves as a target; in the partition figuring process, a natural number coding manner is adopted, crossover operators are removed, and the advantages that decoding is omitted and figuring is more convenient are provided; the effectiveness of the partitioning method is verified by adopting a turbocharger product DSM model serving as a sample.
Owner:DALIAN UNIV
Feature association-based three-dimensional process model change and maintenance method
ActiveCN108804782AAchieve maintenanceGuaranteed reliabilityDesign optimisation/simulationSpecial data processing applicationsComputer scienceFeature based
The invention relates to a three-dimensional process model change and maintenance method, in particular to a feature association-based three-dimensional process model change and maintenance method. The method comprises the following steps of: establishing a design structure matrix among processing features in a process line and analyzing possible processing feature propagation paths; structurallystoring information such as possibly influenced processing features and process models to which the processing features belong by taking the analyzed paths as a core; putting forward a process model change and maintenance algorithm for adding, deleting and modifying the processing features by combining process model information of each process in the process line; and finally explaining the feasibility and reasonability of the three-dimensional process model change and maintenance method via living examples. The method aims at improving the flexibility of three-dimensional process model changeand the reliability of change results.
Owner:XIAN TECH UNIV
A machining workshop layout design method and system based on a design structure matrix
InactiveCN109711092AEasy to understandReliable judgmentResourcesSpecial data processing applicationsDesign structure matrixComponentOf
The invention discloses a machining workshop layout design method and system based on a design structure matrix. Firstly, the logistics relation between a welding production line and a material bufferarea is analyzed; then, according to the occupied area and the preliminary layout of the two types of regions; a layout pattern is provided. The method comprises the steps of calculating main equipment and labor quotas of an automobile welding workshop, discussing the composition of an auxiliary production area and the non-logistics relationship between the auxiliary production area and a weldingproduction line and a material buffer area, obtaining the comprehensive relationship of all the areas through weighted calculation in combination with the obtained logistics relationship, determiningan optimal scheme by adopting a comprehensive evaluation method, and giving a final layout diagram. According to the method, a design structure matrix and automobile workshop layout design are combined; meanwhile, all areas of the workshop and the logistics and non-logistics relation between the areas are considered, a design structure matrix is used for simply and vividly displaying components of the workshop, a designer can better understand the system structure, and clustering, sorting and other analysis methods are used for reasonably designing the layout of the workshop.
Owner:CHONGQING UNIV
A method for extracting key elements of product design
ActiveCN107491582BDealing with Key Feature Extraction IssuesShorten the timeDesign optimisation/simulationSpecial data processing applicationsAlgorithmThresholding
The invention provides a DWCN_NodeRank (NR) algorithm-based key-element extraction method of product design. Firstly, for different design scenes of products, a plurality of SysML models of the products corresponding to the different design scenes are acquired; design elements and relationships between all the design elements are respectively read from each SysML model; then a contribution degree between each pair of the design elements in a design element set is calculated according to relationship strength values of five relationship types, and a design structure matrix IDSM based on the design elements is established; and finally a weight vector NR of all the design elements is calculated in an iterative manner, and the design elements corresponding to elements which are in the obtained weight vector NR and greater than a set threshold value delta are taken as key elements. The method fully utilizes the various relationships embodied by the system models, and compared with a simulation manner or a manner of using probability reckoning according to actual use effect, the method is short in time and high in efficiency, and can deal with the key-element extraction problem in a large number of the system models.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Four-property comprehensive protection integrated design process decomposition method based on improved quality house
The invention belongs to the technical field of maintenance support engineering, and discloses a four-property comprehensive protection integrated design process decomposition method based on an improved quality house. Obtaining a relation matrix of part design characteristics, customer demands and engineering technical parameters and a relation matrix of the engineering technical parameters and the part design characteristics; step 2, by improving quality function expansion, mapping the part design characteristics into design activities, and obtaining a relation matrix between the part design characteristics and the design activities and a correlation matrix between the design activities; 3, solving a key design activity; 4, converting a correlation matrix between design activities into a design structure matrix; 5, coupling activity in the design structure matrix is recognized; the coupling activities are segmented and sorted; and step 6, sorting the coupling activity as a single activity and a non-coupling activity.
Owner:CHENGDU AIRCRAFT DESIGN INST OF AVIATION IND CORP OF CHINA
Modular task reorganization and allocation optimization method of product design cloud service platform
ActiveCN107203492BAchieve global optimization effectImprove coordination efficiencyResourcesComplex mathematical operationsDistribution methodModularity
The invention discloses a product design cloud service platform modular task reconfiguration and allocation optimization method used for solving the technical problem of poor practicality of existing task decomposition and allocation methods. The technical scheme includes that a product collaborative design task is subjected to double decomposition, an interactive relationship of subtasks is quantitatively described by a weighted directed graph and mapped into a design structure matrix, and modular reconfiguration of the task is completed through the design structure matrix. In addition, a task allocation module is constructed, resource execution capability, innovation capability, busyness and task relative significance are evaluated by a tendency matrix, and the tendency matrix is converted into an execution module to obtain a mapping relation between the modular task and resources. A global optimization effect of task decomposition and allocation in a product collaborative design process is realized, integral coordination efficiency is improved, and high practicality is achieved.
Owner:德宏咖啡产业发展有限公司
Design structure for improved memory column redundancy scheme
A design structure embodied in machine readable medium used in a design process includes a system for implementing a memory column redundancy scheme. The system comprises a core array having a plurality of columns and a redundancy column each configured for reading or writing a bit of information and circuitry for steering around a defective column in the core array, wherein the circuitry includes one column multiplexor, which results in having the memory column redundancy scheme include one multiplexing stage.
Owner:IBM CORP
A Conceptual Design Analysis Method for Multidisciplinary Complex Products
ActiveCN108121530BImprove design efficiencyReduce lossSoftware designRequirement analysisDesign phaseSoftware engineering
The invention relates to a conceptual design analysis method for a multidisciplinary complex product. Against the current situation that a design stage of the multidisciplinary complex product lacks the complete modeling processes and analysis methods, the modeling analysis method that supports the whole process of the multidisciplinary complex product conceptual design phase is established through the steps of demand analysis based on a quantization matrix, functional decomposition based on a functional knowledge base, structural function mapping based on interface matching, structural reorganization based on a design structure matrix and SysML-oriented model expression, so that effective analytical ideas and theoretical support are provided for users, to reduce bad design and improve design efficiency.
Owner:BEIHANG UNIV
Manufacturing method of electric vehicle AC charging device considering maintenance service
Owner:ZHEJIANG AICHONG NETWORK TECH CO LTD
General characteristic and performance flow design method for solid engine
The invention provides a general characteristic and performance flow design method for a solid engine, and relates to the technical field of solid engine design, and the method comprises the steps: decomposing the whole design process of the solid engine into a plurality of design subtasks; constructing an initial design structure matrix; converting the initial design structure matrix into a standard design structure matrix; identifying and dividing a coupling task set and a non-coupling task set based on the standard design structure matrix; the design subtasks in the coupling task set are mutually dependent; sequencing the design sub-tasks in the uncoupled task set to obtain a first sequence; sequencing the design sub-tasks in the coupling task set to obtain a second sequence; based on the first sequence and the second sequence, recombining the overall design process of the solid engine to obtain an optimal design process sequence; graded disassembly and ordered carding of the complex nested coupling relation of the solid engine are achieved, and the overall design efficiency and design quality of the solid engine are remarkably improved.
Owner:HEBEI UNIV OF TECH
Customer demand-oriented product module planning method
InactiveCN103473405BNo manual determination of weights is requiredAvoid subjective influenceResourcesSpecial data processing applicationsCustomer requirementsModular design
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Sustainability evaluation method based on fuzzy design structure matrix and grey theory
PendingCN114493060ASolve redundancySolve inaccurateResourcesInference methodsData miningOperations research
The invention provides a sustainability evaluation method based on a fuzzy design structure matrix and a grey theory, and the method is used for evaluating the sustainability of a product, and comprises the following steps: 1, building a sustainability evaluation index set and a sub-index influence factor set according to the characteristics of a to-be-evaluated product, a composite fuzzy matter element is formed through a fuzzy matter element method, and dimensionless numerical processing is carried out; 2, comprehensively considering subjective factors and objective factors, and determining the weight of each sub-index influence factor in the sub-index influence factor set; and step 3, weighting the composite fuzzy matter element by a weight to obtain a sustainability criterion factor incidence matrix, calculating a correlation degree based on a grey theory according to the sustainability criterion factor incidence matrix, obtaining a sustainability comprehensive evaluation index, and carrying out judgment of different schemes on a to-be-evaluated product according to the sustainability comprehensive evaluation index. And finally, selecting to obtain a comprehensive sustainable optimal scheme.
Owner:UNIV OF SHANGHAI FOR SCI & TECH
Universal interface system for integration optimizing software
InactiveCN101739256BEasy to reuseSolve collaborative application problemsSpecific program execution arrangementsModel managementSoftware engineering
Owner:CHINA ACAD OF LAUNCH VEHICLE TECH
Method and device for optimizing rear body flow of learner-driven aircraft
PendingCN112632743AEnhanced interactionReduce interactionCharacter and pattern recognitionDesign optimisation/simulationAlgorithmTheoretical computer science
The invention discloses a method and a device for optimizing the process of a rear body of a learner-driven aircraft. The method for optimizing the process of the rear body of the trainer comprises the following steps: acquiring a structural design matrix of the rear body of the trainer; encoding the design structure matrix, performing multiple times of random encoding combination on design elements in the design matrix, generating an initial population by each time of random encoding combination, and each initial population representing a clustering scheme; processing the initial population through a genetic algorithm so as to obtain a clustering scheme meeting set conditions of the genetic algorithm as an optimal clustering scheme; and generating an optimal structure design matrix according to the optimal clustering scheme, wherein the optimal structure design matrix comprises design elements arranged according to the clustering scheme and association degree information of each design element and other design elements. By the adoption of the method and device for optimizing the process of the rear fuselage of the learner-driven aircraft, information interaction inside the clusters can be enhanced, information interaction between the clusters is weakened, the information feedback frequency is effectively reduced, and the research and development efficiency is improved.
Owner:OCEAN UNIV OF CHINA