55 results about "Fe model" patented technology

The invention provides a BIM (Building Information Modeling) technology adopted multi-specialty combination and transparent visualization method and system. The BIM technology adopted multi-specialty combination and transparent visualization method comprises step 1, establishing a plurality of specialty models; step 2, setting transparency for every specialty model; step 3, performing linkage and alignment on the plurality of specialty models in a first BIM model; step 4, simplifying the first BIM model into a third BIM model; step 5, importing the third BIM model into a mobile terminal. According to the BIM technology adopted multi-specialty combination and transparent visualization method and device, a construction unit can see the specific position of every component intuitively so as to avoid from looking over complex drawings of every specialty during construction; pipelines of specialties exist simultaneously and accordingly the spatial position of every component can be seen in every model so as to avoid pipeline collisions in the construction process; the headroom can be convenient to calculate.

The invention discloses a forwarding device and method. The forwarding device comprises a message analysis module, a protocol message sorting module, a forwarding information base table and a user data message processing module, wherein the message analysis module is used for receiving and analyzing data, sorting the analyzed data according to protocol message data and user data and providing sorted protocol message data and user data, the protocol message sorting module is used for forwarding the protocol message data provided by the message analysis module, the forwarding information base table is used for storing the user data forwarding information, and the user data message processing module is used for processing and forwarding the user data provided by the message analysis module according to the user data forwarding information stored by the forwarding information base table. The invention improves FE models.

The invention discloses a BIM-based building component construction quality acceptance method and system. By combining a BIM model, the quality inspection acceptance work result is more clearly and systematically embodied in the three-dimensional graph, and the procedures of acceptance record filling, photo uploading, document auditing and signature stamping can be completely electronized; according to a random sampling algorithm and an integrity advantage of a BIM model component, random sampling of the to-be-inspected component can be completed on line; good randomness of sampling inspectionwork of quality inspection and acceptance is achieved; and the overall acceptance result, the qualification rate and the rectification part distribution condition of the on-site quality acceptance part can be completely reflected in the BIM model, so that the quality problem can be conveniently traced back and analyzed and summarized in the construction process, and the construction site qualityacceptance data compilation efficiency is improved.

The invention discloses a real-time visualized early warning method for risks in the construction process of a subway station, and the method comprises the steps: collecting deformation monitoring data of a deep foundation pit in the construction process of the subway station through a monitoring module, and uploading the data to a server; establishing a subway station construction process numerical model by using a three-dimensional modeling method based on soil layer parameter data obtained by field investigation; based on a JAYA algorithm, correcting the numerical model of the subway station construction process to meet the actual conditions of construction of different sections; and building a BIM model of subway station construction, dividing the maximum deformation part and the maximum stress part as risk areas, and marking the risk areas in the BIM model by warning. According to the method, the BIM model is utilized to simulate the construction process of each construction condition of the subway station and the deformation condition and the risk area of the enclosure structure in the process, so that the risk visualization of the construction process is achieved, site construction education and risk assessment are facilitated, and the construction efficiency is improved.

The invention discloses a BIM-based fabricated building design method. The method comprises the following steps of S1, creating a BIM model according to drawings and customer requirements; S2, performing structural analysis on the created BIM model; S3, selecting corresponding building materials according to the model; S4, performing stress analysis and collision detection on each structure; S5, counting various test data, and analyzing and checking the various test data. The invention further provides BIM-based fabricated building design device. The BIM-based fabricated building design devicecomprises a BIM model manufacturing unit, a BIM model structure analysis unit, a building material selection and purchase unit, a stress analysis and collision detection unit, an experimental data statistics unit and a data storage unit. According to the invention, the design scheme, the manufacturing requirement and the installation requirement are integrated in the BIM model, so that the integration of the fabricated building design is realized, the problems possibly generated in the actual manufacturing and installation process can be eliminated in advance, the overall efficiency of manufacturing and installation is improved, and the construction period is shortened.

The invention provides a design method of continuous casting billet solidification tail end traveling wave electromagnetic stirring, and relates to the technical field of metal casting. The method comprises the steps: employing a traveling wave electromagnetic stirrer at the solidification tail end of a continuous casting billet, employing finite element analysis software for establishing a three-dimensional mathematical model of the traveling wave electromagnetic stirrer, and performing material attribute distribution and model networking on the model; loading a current to a coil in the model; setting boundary conditions to solve an electromagnetic force generated by a coil loading current, and extracting and displaying the electromagnetic force; interpolating the extracted electromagnetic force, importing the electromagnetic force into fluid calculation software, simulating the flowing of molten steel in the model, extracting streamline distribution on the longitudinal section of thecontinuous casting billet, obtaining the solute redistribution situation of the molten steel in the continuous casting solidification process, and then judging the center segregation situation of thecasting billet; finally, adjusting the parameters of the traveling wave electromagnetic stirrer, repeating simulation calculation, integrating the center segregation conditions of the casting blank under different parameters, and obtaining the optimal parameters of the traveling wave electromagnetic stirrer.

The invention provides a hole periphery grid classification method and device. The method comprises steps of all two-dimensional grids in a computer aided engineering (CAE) model being acquired; for each two-dimensional grid in all the two-dimensional grids, obtaining all holes in the two-dimensional grids, and marking the holes; for each marked hole, obtaining the classification reference information of the hole; and according to the classification reference information, determining the types of the grids around the holes, so the classification reference information of all the holes in the two-dimensional grids is obtained based on all the two-dimensional grids in the CAE model, and according to the classification reference information, the types of the grids around the holes are determined, and thereby automation of classification of the grids around the holes in the CAE model is realized; the method is used for quickly counting a plurality of defects of grids around holes caused bygeometrical shapes, grid division sizes, grid division methods and the like, the simulation analysis efficiency is greatly improved, and errors caused by manual operation are avoided.

The invention relates to a high girder plate one-key identification method based on a BIM technology. The erection height of the high girder plate is 8m or above; the total construction load is 15 kN/m < 2 > or above, the concentrated line load is 20 kN/m or above, the floor or beam color in the model is changed through elevation between an upper layer plate and a lower layer plate in the model and REVIT API by utilizing C # language coding and limiting conditions in the model, and the floor or beam color is highlighted and displayed in the model. According to the method, a BIM model is utilized, C # language coding is utilized through REVIT API, tools for automatically identifying high girders, plates and other components defined in template supporting engineering are manufactured, one-key identification of the high girders and the plates is achieved, and an accurate basis is provided for compiling a high and large formwork construction scheme; and the identified high girder plate isvisually displayed to managers and workers in a three-dimensional manner, so that project field safety management is assisted.

A computer implemented method is configured to detect an unconstrained or low-stiffness connection between parts of an initial finite element (FE) model in a computer aided drafting (CAD) application. A stiffness matrix of the initial FE model is transformed into a reduced stiffness matrix. A singular mode is determined in the reduced stiffness matrix. The plurality of singular mode is identified as corresponding to an unconstrained or low-stiffness connection between parts of the FE model.

The invention provides a BIM (Building Information Modeling)-based building fabricated component transportation simulation method, which specifically comprises the following steps of 1, constructing atemporary stacking site model, and establishing the temporary stacking site model in a BIM after obtaining the BIM of an assembly site; 2, planning a transportation line and time, and determining thetransportation line and time of vehicles for transporting shelves and components in an assembly site; and step 3, simulation and adjustment, carrying out simulation and adjusting the transport line,the time and the model structure according to a simulation result. According to the method, a temporary stacking site model is directly constructed in the BIM model of the assembly site, the reflectedengineering information is more stereoscopic and visual, the storage site and the transportation route of the planned component are more reasonable, and therefore construction efficiency is indirectly improved, after planning is completed, through simulation of the transportation process, risk points can be avoided or necessary countermeasures can be taken by effectively combining a simulation result, and construction efficiency is further improved.

The invention relates to the technical field of BIM in building construction schemes, in particular to a BIM modular modeling method and a BIM modular modeling system.The modeling method comprises the following steps of Rhino model establishment, model refinement, model expansion, process selection, optimized typesetting, size collection, loss rate checking calculation and prefabrication production. The method comprises the following steps: constructing a model, adding a construction process feasible for all construction objects in the prior art into the model, splitting a plurality of groups of feasible schemes according to the construction process and a model expansion drawing, further simulating prefabrication, obtaining a loss rate, and comparing and outputting an optimized splitting scheme, thereby facilitating improvement of construction efficiency and saving of construction resources.

The invention discloses an aerodynamic modeling method and system based on MAML. The aerodynamic modeling method comprises the following steps: S1, generating an aerodynamic data set for machine learning; s2, based on the aerodynamic force data set, establishing a base learning process; and S3, on the basis of the base learning process, obtaining a meta learning process. According to the method, a relatively good parameter of the base learner and the meta learner can be learned, and after the parameter is obtained, convergence in the model can be rapidly carried out by only needing a small number of learning samples for a nonlinear unsteady physical problem of a similar scene, so that the generalization ability under the condition of a small number of samples is improved, the precision and the learning efficiency are both considered, and the method is suitable for large-scale popularization and application. And the method has a relatively strong engineering application background.

The invention discloses a method and system for positioning physical equipment based on 3D modeling, and the method comprises the steps: building a physical equipment model and a reference object model of the equipment model, and the reference object model being a building model or a part of structure model of the building model; wherein the reference object model provides position positioning forthe physical equipment model; obtaining operation parameters of the physical equipment and displaying the operation parameters in a model; and displaying a path to the physical equipment according tothe selected physical equipment, wherein the path is used for being pushed to maintenance personnel. According to the technical scheme provided by the embodiment of the invention, the user scene is drawn by using 3D, the equipment position can be accurately positioned, the operation state can be accurately described, maintenance personnel can be guided to work, problems can be quickly positionedand found, the finding cost is visually reduced, and the labor cost is further reduced.