CN-121998797-A - Gate-water flow coupled vibration space-time energy transfer visual analysis system and method

CN121998797ACN 121998797 ACN121998797 ACN 121998797ACN-121998797-A

Abstract

The invention relates to the technical field of energy transfer data analysis, and discloses a space-time energy transfer visual analysis system and a space-time energy transfer visual analysis method for gate-water flow coupling vibration. The method comprises the steps of generating a space-time continuous energy density distribution field through a space-frequency field reconstruction technology, converting non-uniform sampling data into a scalar field with energy fingerprint characteristics, aggregating energy fingerprint codes into energy microelements with directivity to form a space-time energy microelement array, generating an energy potential gradient network based on a dynamic coupling relation, identifying a main energy passage and a branch energy passage to form a layered energy potential gradient network structure, mapping the energy potential gradient network to an affine space-time coordinate system, and generating a dynamic energy potential topological curved surface according to the intensity and directivity of path energy flux. The invention realizes multi-parameter synchronous observation of the complex energy transfer process.

Inventors

XU WENBING
WANG XIN
CUI ZHI
WANG CHUJUN
PENG NENG
MA RENCHAO
LI ZHIXING
CHEN QI
LI ZICHONG
ZHANG WENKE
WU DEXIN
CAO HUIYING
YU JUNYANG

Assignees

华能澜沧江水电股份有限公司
中国电建集团昆明勘测设计研究院有限公司
水利部交通运输部国家能源局南京水利科学研究院

Dates

Publication Date: 20260508
Application Date: 20251231

Claims (10)

1. A system for visualizing energy transfer in time and space of coupled vibration of a gate-water flow, the system comprising: The dynamic energy potential topology mapping system 3 is used for mapping an energy potential gradient network to an affine space-time coordinate system, generating a dynamic energy potential topology curved surface according to the energy flux intensity and the directivity of a path, mapping the energy flux intensity to hue change by adopting a frequency domain-color gamut coupling mapping strategy, mapping the energy transmission direction to texture flow direction, realizing multidimensional dynamic expression of the energy transmission process, and finally generating an interactive energy potential topology map supporting multi-scale exploration, and drilling down from a global energy potential structure to local energy microcell dynamics.
2. The system for spatiotemporal energy transfer visualization analysis of gate-water flow coupled vibrations of claim 1, comprising a dynamic energy potential topology mapping system comprising: The frequency domain-hue feature mapping subsystem is used for dividing continuous energy intensity values into different frequency domain intervals by adopting frequency band division based on the frequency spectrum distribution characteristic of the path energy flux intensity, converting the energy flux intensity values into hue values corresponding to specific hue coding reference values in each frequency domain interval, and forming a hue distribution map based on the energy intensity; the direction-texture flow direction synthesizing subsystem is used for decomposing direction angle information in the energy potential gradient network into two components of a flow direction vector and a flow velocity intensity, wherein the flow direction vector is converted into direction texture elements through a texture field generating technology, and each texture element comprises directivity and fluidity characteristics; The multidimensional dynamic expression fusion subsystem is used for establishing a corresponding relation between hue values and texture parameters of a hue distribution map and a dynamic texture field, carrying out spatial registration on hue distribution and texture flow directions according to position information in a space-time coordinate system to form a unified color-texture composite field, and finally realizing visualization of a space-time continuous energy transfer process through a dynamic rendering technology.
3. The system for spatiotemporal energy transfer visualization analysis of gate-water flow coupled vibrations of claim 2, comprising a multi-dimensional dynamic expression fusion subsystem comprising: The visual channel coupling relation establishing component is used for firstly establishing a visual corresponding relation between hue values in the hue distribution map and texture parameters in the dynamic texture field, and carrying out associated matching on wavelength characteristics of the hue values and direction characteristics of texture elements; The space-time coordinate alignment processing component is used for carrying out space registration on hue distribution and texture flow direction based on the position information of a space-time coordinate system, adopting space-time grid alignment to accurately match the pixel coordinates of a hue distribution map with the vector coordinates of a dynamic texture field, eliminating the space deviation between the hue distribution map and the vector coordinates through coordinate transformation, and forming a visual element combination with uniform positions by completely corresponding the color attribute and the texture attribute of each space point; The composite field dynamic fusion generation assembly is used for generating a color-texture composite field through a field fusion technology after registration, taking hue distribution as a base image layer and texture flow direction as a characteristic image layer, naturally combining two visual elements through transparency adjustment and edge fusion treatment, and simultaneously retaining color expression of energy intensity and texture expression of energy direction of the finally generated composite field to form a complete energy transmission visual carrier.
4. The gate-water flow coupled vibratory spatio-temporal energy transfer visualization analysis system of claim 3, wherein the composite field dynamic fusion generation assembly comprises: The image layer preprocessing and characteristic enhancing subassembly is used for carrying out color saturation optimization processing on the registered hue distribution diagram layer, enhancing the visual distinction degree of energy intensity expression, and carrying out direction consistency enhancement on the texture flow direction image layer; A dynamic transparency adjustment sub-component for generating a transparency control parameter based on the energy flux intensity data, the high intensity energy region corresponding to a lower texture layer transparency; the edge fusion and vision coordination subassembly is used for processing edge areas of two layers through a gradual change mixing technology, adopting self-adaptive edge detection to identify characteristic boundaries of colors and textures, creating a mixed transition zone in the boundary area, adjusting color tone and texture density of the transition area through color compatibility to enable two vision elements to be naturally fused at the junction, and finally forming a composite visual field.
5. The gate-water flow coupled vibratory spatio-temporal energy transfer visualization analysis system of claim 4, comprising: The feature boundary intelligent recognition module is used for recognizing potential boundary areas by adopting a gradient field analysis technology based on visual feature differences of the preprocessed hue distribution map layer and the texture flow map layer, positioning transition areas with obvious feature differences through spatial gradient changes of the two map layers on color saturation and texture density, integrating boundary information detected under different scales into a complete feature boundary map, and identifying fusion boundary areas needing special treatment; The system comprises a mixed transition zone construction module, a transition zone generation module and a transition zone generation module, wherein the mixed transition zone construction module is used for creating a mixed transition zone in an identified characteristic boundary area, and dynamically determining the width and the shape of the transition zone according to the visual characteristic difference degree of two sides of the boundary; The visual compatibility optimization module is used for analyzing the difference degree of color tone at two sides of a boundary by visual elements in the mixed transition zone, adjusting the hue value of the transition zone through color harmony calculation, smoothing the change rate of texture density by adopting a texture gradient technology according to the texture density distribution characteristics, and finally enabling the visual elements of two layers to be fused in the boundary zone to form a visually unified and coordinated composite field.
6. The gate-water flow coupled vibratory spatio-temporal energy transfer visualization analysis system of claim 5, wherein the hybrid transition zone building module comprises: The difference degree quantitative evaluation sub-module is used for carrying out quantitative evaluation on visual feature differences at two sides of a boundary based on boundary region information provided by a feature boundary map, obtaining three core parameters of color saturation difference, texture density difference and direction consistency difference through multi-dimensional difference, converting each parameter into a standard difference coefficient through normalization processing, and obtaining a comprehensive difference index through weighted fusion; The transition zone parameter dynamic generation sub-module is used for inputting the comprehensive difference index into the transition zone parameter generator and dynamically determining the width and the shape of the transition zone; The smooth transition and intermediate feature synthesis sub-module is used for realizing smooth transition of color values and texture parameters by adopting a bivariate gradual change technology in a determined transition zone area, generating natural continuous parameter distribution by considering change rules on two sides of a boundary and in a transition zone, further synthesizing intermediate transition features based on the parameter distribution, and finally forming a natural vision bridge for connecting two layers.
7. The gate-water flow coupling of claim 6a vibration space-time energy transfer visual analysis system, the method is characterized by comprising the following steps of: The boundary feature data extraction unit is used for extracting color values and texture parameter distribution features on two sides of the boundary based on the transition zone region range; the double-variable coupling field construction unit is used for determining the coordination relation of color gradient and texture gradient in space by establishing a coupling weight matrix, obtaining a color target value and a texture target value of each point according to the distance between each position in the transition zone and the boundary line, and forming a double-variable coupling field; The continuous parameter distribution generating unit is used for generating final parameter distribution of the bivariate coupling field through smoothness optimization processing, checking whether the generated parameter distribution is perfectly connected with the original boundary characteristics or not through a boundary condition verification program, and finally outputting natural continuous parameter distribution to realize seamless transition of two visual elements.
8. The system for spatio-temporal energy transfer visualization analysis of gate-water flow coupled vibrations of claim 7, comprising: The space coordination relation modeling subunit is used for carrying out association analysis on the hue change rule of color gradual change and the density change rule of texture gradual change based on the color and texture distribution characteristics provided by the boundary characteristic data extraction unit to establish a space coordination relation model; The dynamic weight distribution processing subunit is used for dynamically distributing the weight proportion of the color and the texture according to the feature saliency of different areas in the transition zone; And the target value coupling calculation subunit is used for coupling the weight matrix and the boundary distance parameter to obtain a basic gradual change value according to the distance between each point and the boundary line, then combining the weight matrix to perform weighted fusion, and generating a color target value and a texture target value of each space point, wherein the target values form a complete bivariate coupling field.
9. The gate-water flow coupled vibration space-time energy transfer visual analysis system of claim 1, further comprising an energy potential gradient network construction system for receiving the space-time energy micro element array, calculating potential energy difference and kinetic energy flux between adjacent energy micro elements through an energy potential gradient operator, establishing a dynamic coupling relation between the energy micro elements, generating an energy potential gradient network based on the dynamic coupling relation, wherein nodes are energy aggregation centers, edges are effective transmission paths of energy potential gradients exceeding a threshold value, and identifying a main energy path and a branch energy path through adaptive clustering to form a layered energy potential gradient network structure.
10. A method for visualizing analysis of spatiotemporal energy transfer of coupled vibration of a gate-water flow, applied to the system for visualizing analysis of spatiotemporal energy transfer of coupled vibration of a gate-water flow according to any one of claims 1 to 9, characterized in that it comprises: Generating a space-time continuous energy density distribution field through a space-frequency field reconstruction technology based on original vibration and water flow disturbance signals acquired by a multi-source sensing array, and converting non-uniform sampling data into a scalar field with energy fingerprint characteristics, wherein each space point is endowed with a time-varying energy fingerprint code which comprises energy amplitude, phase and frequency domain characteristics; Receiving a space-time energy micro-element array, calculating potential energy difference and kinetic energy flux between adjacent energy micro-elements through an energy potential gradient operator, and establishing a dynamic coupling relation between the energy micro-elements; generating an energy potential gradient network based on a dynamic coupling relation, wherein nodes are energy aggregation centers, and edges are effective transmission paths of energy potential gradients exceeding a threshold value; The method comprises the steps of mapping an energy potential gradient network to an affine space-time coordinate system, generating a dynamic energy potential topological curved surface according to the energy flux intensity and directivity of a path, mapping the energy flux intensity to hue change by adopting a frequency domain-color domain coupling mapping strategy, mapping an energy transmission direction to texture flow direction, realizing multidimensional dynamic expression of an energy transmission process, and finally generating an interactive energy potential topological map supporting multi-scale exploration, and drilling from a global energy potential structure to local energy microcell dynamics.

Description

Gate-water flow coupled vibration space-time energy transfer visual analysis system and method Technical Field The invention relates to the technical field of energy transfer data analysis, in particular to a space-time energy transfer visual analysis system and method for gate-water flow coupling vibration. Background The gate-water flow coupling vibration phenomenon in the hydraulic junction engineering has important potential safety hazards for a long time. According to statistics, the structural damage accident of the gate caused by fluid induced vibration in the last decade of China accounts for 37%, and the energy transfer process has remarkable space-time multidimensional characteristics that the cascade conversion of fluid kinetic energy, structural strain energy and acoustic radiation energy exists in the coupling superposition space dimension of low-frequency vibration (0.1-10 Hz) and high-frequency turbulence pulsation (10-100 Hz) in the time dimension. The existing engineering monitoring mainly depends on the layout of discrete sensors, and has three technical bottlenecks that ① energy transmission paths are insufficient in identification precision (space resolution is less than 0.5 m) and ③ physical field data fusion is difficult due to ② dynamic response lag (sampling frequency is less than or equal to 50 Hz). In the prior art, china patent application number 202411629539.3 discloses a method and a device for analyzing vibration of a diversion tunnel gate in real time, a biological-fluid-solid coupling model combining real-time data acquisition and finite element analysis is introduced, and comprehensive vibration state analysis strategies are constructed by setting data acquisition frequency in a monitoring period, monitoring and integrating biomembrane thickness, growth rate and water flow dynamics data in real time. Although the vibration state identification and control capability of the system is effectively improved, the analysis accuracy is improved, the biological film thickness control and adjustment measures with high pertinence are provided, the stability and safety of the operation of the diversion tunnel gate are obviously enhanced, the biological-fluid-solid coupling macroscopic vibration state analysis is only concerned, the space-time continuous analysis capability of an energy transmission path is lacking, and the dynamic coupling relation of the energy microcell level cannot be established. A method for analyzing vibration characteristics of a guide vane shaft-top cover rub coupling system of a water turbine is disclosed in China patent application number 202411988246.4, and comprises the steps of establishing a shrinkage reduction dynamics model of the guide vane shaft-top cover rub coupling system by adopting a finite element method in combination with a fixed interface mode synthesis method, analyzing influence rules of a modal cut-off number, a friction coefficient and a water flow surface load on front 3-order prestress modal characteristics of the guide vane shaft-top cover rub coupling system based on the shrinkage reduction dynamics model, analyzing influence rules of a near-end contact state, a near-end contact state and a friction coefficient on vibration response and spectral characteristics of the guide vane shaft-top cover rub coupling system when the shrinkage reduction dynamics model is excited by simple harmonic, and evaluating whether the mixed flow water turbine runs stably and safely based on the steps. Although the structural health state and faults of the mixed-flow turbine are monitored and diagnosed by analyzing the vibration characteristics of the mixed-flow turbine guide vane shaft-top cover friction coupling system, the modal analysis based on the shrinkage dynamics model is limited to structural parts, the visual expression problem of multi-physical field energy interaction is not solved, and the spectral characteristic analysis does not establish a mapping relation with the spatial energy distribution. The prior art III, china patent application number 202411705760.2 discloses a method and a system for checking the operation load of a hydraulic cylinder of a double-hanging-point radial gate hoist, wherein the method comprises the steps of combining an initial model of the double-hanging-point radial gate hoist according to the dynamic safety opening degree of a gate and different heights and speeds of water flow, constructing a dynamic model of the double-hanging-point radial gate hoist, further determining a fluid domain and a solid domain, respectively conducting grid division, carrying out coupling analysis calculation on the fluid domain and the solid domain according to preset boundary conditions of the double-hanging-point radial gate hoist and grid division conditions of the fluid domain and the solid domain, and constructing an environment parameter and hoist hydraulic cylinder load distribution model according to the environment parameter