16 results about "Topology design" patented technology

The application discloses a kind of wind farm power collection system topology design method and system based on improved genetic algorithm, it is related to system topology design technical field, to solve the core problem of wind turbine grouping and submarine cable connection collaborative optimization under high-dimensional constraint, accurate matching of load flow and cost.The method determines the maximum number of wind turbines and the number range of feeder by parameter calculation module simultaneous equations, grouping connection module constructs initial scheme by polar grouping combined with minimum spanning tree algorithm, cost modeling module calculates cost by exclusive function, iteration optimization module dynamically adjusts grouping and the number of wind turbines based on improved genetic algorithm, constraint screening module excludes illegal scheme by penalty formula, and finally generates optimal and suboptimal topology graph containing core parameters.The application divides high-dimensional optimization problem into layers, considers constraint satisfaction degree and economy, significantly reduces submarine cable investment cost, improves design efficiency and engineering feasibility, and is suitable for various offshore wind farm power collection system topology design.

The application discloses a method and device for constructing a folded hypercube edge-disjoint Hamiltonian cycle, and relates to the technical field of interconnection network topology. The method comprises the following steps: recursively constructing a first Hamiltonian cycle on an n-dimensional folded hypercube; applying a mapping f to each vertex u in the first Hamiltonian cycle, and sequentially connecting the mapped vertices in the original order to obtain a second Hamiltonian cycle; and the first Hamiltonian cycle and the second Hamiltonian cycle do not have any common edge in the n-dimensional folded hypercube. The above method provides key technical support for the topology design and routing protocol of a high-performance parallel computing system.

This invention discloses an optimization design method for lightweight torsion springs used in robots. The method includes the following steps: First, setting design objectives and constraints, with minimizing spring mass as the optimization objective. Constraints include stiffness, maximum stress, torque capacity, and maximum thickness. Then, material selection and topology design are performed, using chromium vanadium steel and designing three sets of symmetrically distributed wave-shaped spring structures. Next, a three-dimensional parametric model is established in a finite element environment, and simulation analysis is conducted to obtain key performance indicators. Further, based on the Latin hypercube sampling method and the Kriging surrogate model, the spring thickness and transition fillet radius are modeled and predicted, and a multi-objective genetic algorithm is used for global optimization to obtain the optimal structural parameters. Finally, physical processing and experimental verification are performed based on the optimization results. This invention can achieve significant weight reduction, reduce stress concentration, and extend service life while ensuring low stiffness and high torque capacity.

The application discloses a rear baffle disc partition topology optimization method and system based on multi-feature K means, and the method comprises the following steps: firstly, discretizing a rear baffle disc design domain and initializing variables; in iteration, generating physical density by density filtering and Heaviside projection, and solving a displacement field; in the initial stage, global maximum stress is taken as a constraint for optimization, and after the change rate of the structure mass is stabilized, a multi-feature K means partition model is switched; the model fuses unit stress, density and geometric distance features to carry out clustering partition, predicts stress evolution trend based on a transition factor, and dynamically regulates stress constraints of each sub-area by using a sub-area relaxation coefficient and an iterative correction mechanism; and finally, a lightweight topology structure with clear partition and uniform stress distribution is output. Through the density optimization, feature K means dynamic partition and adaptive stress regulation technology guided by the transition factor, the application realizes the lightweight topology design of the rear baffle disc with clear partition, uniform stress and strong manufacturability.

This invention discloses a topology design method for offshore wind farm collection systems based on reinforcement learning, belonging to the field of new energy and power system engineering. This method combines an objective function with various constraints to establish a bilateral ring topology planning model for the offshore wind power collection system. Simultaneously, it constructs an evaluation-improvement iterative framework based on policy gradient reinforcement learning. Furthermore, through policy network evaluation, dynamic parameter updates, and operator orchestration, reward signals guide the model's learning of the mapping between the learning state and the optimal operator. A threshold-triggered global perturbation exploration mechanism is introduced to effectively escape local optima while keeping costs relatively constant. Iterative optimization of the topology is achieved through the evaluation-improvement iterative framework. This method is adaptable to wind farms of different turbine sizes, offering superior optimization performance, solution efficiency, and robustness, providing an economical and reliable topology design solution for offshore wind farm collection systems.

This invention proposes an acoustic black hole metamaterial and its design method that combines load-bearing and vibration suppression. It is composed of multiple periodically arranged unit cells interconnected. Each unit cell integrates six three-dimensional acoustic black hole units formed by rotating a power-law thickness-gradient structure. Through the synergistic effect of the three-dimensional acoustic black hole units and lattice topology design, a significant elastic wave bandgap is achieved in an ultra-wide frequency range, effectively suppressing structural vibration while maintaining excellent static load-bearing capacity. This invention overcomes the inherent contradiction between vibration reduction performance and load-bearing capacity. While achieving lightweight miniaturization, it has advantages such as simple manufacturing process, compact structure, and easy integration, making it suitable for fields with high requirements for load-bearing and vibration suppression.

The application relates to a kind of transient load under the function gradient porous structure of multiphase filling dynamics topology optimization method and system, belong to the topology optimization design field of function gradient porous structure.The technical problems to be solved by the application are: how to fully exploit design space, construct the efficient function gradient porous structure of multiphase filling dynamics topology optimization method, realize the optimal anti-vibration design of porous filling structure with high-quality transient dynamic performance.Technical points: based on characteristic orthogonal decomposition method, the reduced transient dynamic finite element equation of function gradient porous multiphase filling structure is constructed;the material interpolation model and volume constraint model of function gradient porous multiphase filling structure are constructed, and the transient dynamic multiphase filling topology optimization reduced model with the minimum dynamic compliance as the optimization objective is proposed;the reduced sensitivity time-domain accompanying equation is constructed, and the sensitivity of dynamic compliance and volume constraint is efficiently calculated;based on ADMM-MMA hybrid optimization algorithm, the optimal topology design of function gradient porous multiphase filling structure is efficiently solved and obtained.The application can maximize the optimal anti-vibration performance of function gradient porous filling structure, and is especially suitable for the structure lightweight anti-vibration design of large engineering equipment.

This invention provides a method for fabricating a flexible heat transfer device with a channel-hemispherical composite topology structure. The method includes the following steps: Step 1: Designing a channel topology and a hemispherical topology arranged at intervals as the topological structure, with multiple hemispherical topologies between adjacent channel topologies; Step 2: Optimizing the design profile curve, design height, design period T1 of the channel topology, the design radius of the hemispherical topology, the design spacing T2 between multiple hemispherical topologies between adjacent channel topologies, and the design spacing T3 between two adjacent rows of hemispherical topologies based on fluid flow resistance, maximum bending stress, effective cross-sectional area, and maximum structural support force, and selecting the optimized channel topology and hemispherical topology; Step 3: Fabricating a flexible heat transfer device with the optimized channel topology and hemispherical topology from Step 2. The flexible heat transfer device fabricated using the topology optimization design of this invention can maintain high-efficiency heat transfer performance even after multiple bends.

The application is a large aperture mesh antenna reflector surface working area partition topology design method and system which balances the gain-groove lobe level double target; according to the antenna working parameters, the gain-node displacement relationship of the reflector surface is calculated; the division point is determined according to the gain-node displacement relationship, and the working area of the reflector surface is divided into a central area and an edge area according to the division point; the total number of the working area of the antenna is determined, and the ring number distribution combination satisfying the central area and the edge area is generated according to the total number of the ring; the ring number distribution combination is traversed, for the current combination being traversed, the combination satisfying the theoretical surface accuracy requirement is calculated and reserved, and the Pareto optimal solution corresponding to the current ring number distribution combination is obtained; the Pareto optimal solution of all feasible ring number distribution combinations is obtained, and the mechanical balance of the global optimal population is obtained. Through the partition concept of contribution difference, the topology design can allocate the limited optimization resources in the high-efficiency area, and realizes the optimization configuration of the design resources.

This invention discloses a digital twin-based method for topology design of energy storage converters, relating to the field of data processing technology. The method includes: collecting multi-source data and uniformly organizing it to form a design task dataset; extracting electrical, thermal, insulation, parallel, network, and interface constraints from the design task dataset and compiling them into a design contract chain; calling topology primitives and performing combinatorial encoding based on the design contract chain to generate a candidate topology code set; comparing the operational performance and implementation adaptability of the topology set to be corrected with historical design feedback data to form correction evaluation information; selecting candidate topologies from the correction evaluation information that simultaneously satisfy the design contract chain and maintain the optimal comprehensive ranking in operational performance and implementation adaptability, and outputting the target topology design content. This invention, by compiling the design contract chain, achieves a unified expression and orderly organization of the energy storage converter topology design boundary.

This invention discloses a land-use-intensive roundabout topology design method based on adaptive traffic volume, comprising: acquiring the physical structure and current traffic flow parameters of the target intersection; calculating the theoretical capacity based on the gap acceptance theory using the yield rule for entering the roundabout; inputting the traffic flow parameters into a micro-traffic simulation model, and obtaining the slow traffic reduction coefficient and left-turn ratio reduction coefficient of motor vehicle capacity by changing the slow traffic flow and left-turn ratio variables, respectively; correcting the theoretical capacity using the above two reduction coefficients to obtain the adaptive traffic volume of the target intersection; and finally matching the corresponding center island radius and number of roundabout lanes in a preset intersection selection library according to the adaptive traffic volume, and outputting the final physical topology modification scheme. This invention accurately quantifies the interference degree of mixed traffic flow and turning ratio, avoids the subjective blindness of manual selection, and significantly improves the scientificity and land-use efficiency of intersection design.

This invention discloses a topology design method, system, electronic device, and storage medium to ensure the capacity robustness of satellite networks. It primarily addresses the shortcomings of existing technologies that do not fully consider the impact of network topology on capacity robustness and the difficulty in efficiently selecting suitable topologies as the network scales up. The implementation scheme involves: obtaining the parameters of the satellite network to be designed and the failure probability of inter-satellite links; setting a connection factor based on the inter-satellite link failure probability and determining the offset of each orbital plane that satisfies the connection factor constraint; establishing connection rules for intra-orbit links within the orbital plane based on the inter-satellite link distance; and establishing connection rules for inter-orbit links between orbital planes based on the inter-satellite link distance and offset, thereby obtaining a satellite network topology that meets the capacity robustness requirements. By introducing link failure probability constraints during the topology design stage, this invention effectively enhances the capacity of bottleneck links and ensures the network capacity robustness of the satellite network in the event of link failure, and can be used for satellite network topology design.

The application relates to the technical field of superstructure vibration isolation, in particular to a monolithic torsional vibration suppression superstructure based on topological optimization. The superstructure comprises a ring-shaped plate structure, the center of the ring-shaped plate structure is a rigid shaft connecting area, the edge is a closed external connecting rigid area; the area between the rigid shaft connecting area and the external connecting rigid area is a topological design area; a plurality of hollow gap areas are arranged in the topological design area, and solid material areas connecting the rigid shaft connecting area and the external connecting rigid area are arranged between adjacent gap areas; the gap areas are centrosymmetric about the center point of the ring-shaped plate structure. The application realizes the quasi-zero stiffness characteristic through material topological distribution in the closed ring-shaped design domain, so that the high torque transmission capability is realized, and the low-frequency torsional vibration is effectively isolated and suppressed.

This invention discloses a topology construction and operation control method for an aerial wind power generation system. The method includes: First, constructing a core electrical structure, the aerial portion of which consists of multiple generator-passive diode rectifier units connected in series, directly generating medium-voltage DC transmission without an onboard boost converter, achieving extreme lightweighting of the aerial platform structurally; Second, adopting a ground parameter adjustment method adapted to this lightweight topology, adjusting the DC voltage of the ground-connected grid converter to match the output characteristics of the aerial passive series circuit, ensuring stable system power output; Finally, through topology steady-state characteristic adaptation analysis, clarifying the system operating parameters and adjustable power boundaries, providing adaptation support for safe topology operation. This invention, starting from topology design, solves the "weight-voltage" paradox faced by existing high-altitude wind energy systems in large-scale applications, while avoiding the problems of insufficient operational stability and low reliability caused by complex topology adaptation.

A method and system for analyzing photovoltaic grid-connected circulating current resonance based on second-order modal sensitivity. The method includes: establishing the network node admittance matrix of the photovoltaic grid-connected inverter system; detecting the circulating current resonance frequency; determining the optimal observable node, the optimal excitable node, and the circulating current resonance center point; obtaining and standardizing the first-order modal sensitivity of the eigenvalue amplitude for parallel and series elements in the network; obtaining and standardizing the second-order modal sensitivity of the parallel and series elements based on the standardized first-order modal sensitivity; evaluating the participation of circulating current resonance elements by comparing the standardized first-order and second-order modal sensitivities, and defining a critical factor for the percentage adjustment of element parameters to select key circulating current resonance elements for circulating current resonance suppression based on the adjustment amount of element parameters. This invention can refine the granularity of circulating current resonance analysis, improve the efficiency of circulating current resonance analysis, provide a basis for circulating current resonance suppression, and guide the selection of photovoltaic power plant equipment and topology design.