7 results about "Active structure" patented technology

The invention discloses a grating dam safety evaluation and design method and structure based on debris flow blocking degree. Wherein the safety assessment method comprises the following steps: S100, calculating the safety of the debris flow on the basis of the solid matter concentration of a debris flow susceptible area, the particle size value corresponding to the accumulated content of 95% in a full particle size grading curve, the channel average gradient, the channel average width and the primary debris flow scale in the section range of the grating dam, the minimum particle size value of the maximum boulder in the drainage basin and the opening width of the grating dam; calculating a critical blocking judgment coefficient according to the correlation value of the height of the grating dam, the angle of the wedge-shaped structure and 60 degrees and the correlation value of the total amount of debris flow solid substances and the reservoir capacity of the wedge-shaped beam type grating dam; and S200, evaluating the safety of the grating dam based on the critical blocking discrimination coefficient. The evaluation and design method and structure incorporate the relative relation between the debris flow scale and the dam body storage capacity, meanwhile, the influence on active structure parameters such as wedge-shaped flow guide is quantified, and the blocking state prediction accuracy of the grating dam in actual operation is improved to a certain degree.

An MEMS having a layered structure includes a cavity disposed in the layered structure and fluidically coupled to an external environment of the layered structure through at least one opening in the layered structure. The MEMS includes an interaction structure movably disposed in a first MEMS plane and in the cavity along a plane direction and configured to interact with a fluid in the cavity, wherein movement of the interaction structure is causally related to movement of the fluid through the at least one opening. The MEMS further includes an active structure disposed in a second MEMS perpendicular to the plane direction, the active structure mechanically coupled to the insulation structure and configured such that an electrical signal at an electrical contact of the active structure is causally related to a deformation of the active structure, wherein the deformation of the active structure is causally related to movement of the fluid.

The application provides a house source three-dimensional modeling method, equipment and a storage medium, wherein the method comprises using a camera to shoot a first video of the interior of a house, and splitting the first video into multiple indoor images. The indoor image set is subjected to semantic segmentation, and movable obstacles in the indoor image set are removed according to K labels. The active structure in the house interior structure image set is marked according to the K labels, and the two sides of the active structure are subjected to connected component analysis. The house interior structure image set is converted into M three-dimensional point clouds, and the M three-dimensional point clouds are reconstructed based on the spatial connection relationship. N reconstructed point clouds are subjected to Poisson reconstruction, and the interior three-dimensional model of the house source is obtained. The application adopts the semantic segmentation mode to exclude the influence of furniture and other movable obstacles on the house structure, uses the active structure to improve the accuracy of the spatial relationship between different regions in modeling, and represents the space separated by the active structure, so that the house is comprehensively and accurately three-dimensionally modeled.

The invention provides a house resource three-dimensional modeling method and device and a storage medium, and the method comprises the steps: employing a camera to shoot a first video in a house, and splitting the first video into a plurality of indoor images; semantic segmentation is carried out on the indoor image set, and movable obstacles in the indoor image set are removed according to the K labels. And marking an active structure in the house internal structure image set according to the K labels, and performing connected domain analysis based on two sides of the active structure. And converting the house internal structure image set into M three-dimensional point clouds, and reconstructing the M three-dimensional point clouds based on the spatial communication relationship. And carrying out Poisson reconstruction on the N reconstructed point clouds to obtain a house resource internal three-dimensional model. According to the method, the influence of movable obstacles such as furniture on the house structure is eliminated in a semantic segmentation mode, and the accuracy of modeling the spatial relationship between different areas is improved by utilizing the movable structure, so that the space separated by the movable structure is represented, and three-dimensional modeling is comprehensively and accurately performed on the house.

The invention discloses a topological optimization-based intelligent design method for a stable bearing capacity adjustable and programmable active structure, which comprises the following steps of: determining material parameters of each material in the active structure and a finite element model corresponding to the whole structure according to design requirements in a structure design scheme; constructing a stable bearing analysis equation of the active structure based on the stress condition of the active structure in the structural design scheme; based on an active structure stable bearing analysis equation and the finite element model, constructing a target function for calculating the distribution condition of each material; and carrying out iterative solution on the target function according to a preset constraint condition so as to output the distribution condition of each material on the finite element model. According to the method provided by the invention, the stable bearing capacity can be actively adjusted through external excitation, and even an advanced active structure with a specific stable bearing capacity change rule can be shown according to preset setting.

A fish passage based on space-time transformation of fish migration habit, comprising a fishway surrounded by a water side wall, a fishway bottom plate and a bank slope wall, a plurality of partition structures are arranged in the fishway to divide the fishway into a plurality of pool rooms, and the bottom end of the water side wall is fixedly connected to the fishway bottom plate; the bank slope wall is an active structure, a horizontal hydraulic system is arranged in the fishway bottom plate and used for pushing the bank slope wall away from or close to the water side wall; the partition structure comprises a fixed partition and an extensible guide plate; the extensible guide plate is liftable installed on the fishway bottom plate, the extensible guide plate is of an extensible structure, the extensible end of the extensible guide plate is connected to the bank slope wall and can slide up and down on the bank slope wall; the fixed partition is fixedly connected to the water side wall and the fishway bottom plate, and the fixed partition and the inner side end of the extensible guide plate are arranged in a spaced mode to form a vertical gap. In the application, the bank slope wall is arranged as an active structure, and the extensible guide plate can be lifted, so that the whole fish passage can provide flexible and changeable fishway space.

The application discloses a kind of based on the safety evaluation, design method and structure of grid dam of debris flow occlusion degree. Among them, the safety evaluation method includes the following steps: S100: based on the solid matter concentration of debris flow prone area, the particle size value corresponding to the cumulative content of 95% in full grain size distribution curve, the average slope in the cross section range of grid dam, the average width of channel, the size of debris flow, the minimum particle size value of the largest block stone in watershed, the opening width of grid dam, the height of grid dam, the correlation value of wedge structure angle and 60 °, the correlation value of the total amount of debris flow solid matter and the storage capacity of wedge beam type grid dam, calculate critical occlusion discriminant coefficient;S200: based on the critical occlusion discriminant coefficient, evaluate the safety of grid dam. The evaluation, design method and structure incorporate the relative relationship of debris flow size and dam storage capacity, and the influence of wedge diversion and other active structure parameters is quantified, which improves the prediction accuracy of occlusion state in the actual operation of grid dam to some extent.