6 results about "Tension field" patented technology

This invention relates to the field of preload monitoring technology, and more particularly to an online monitoring method for bolt preload in steel pipes. First, an original digital signal sequence is acquired based on collected electromagnetic resonance and acoustic reflection signals. After preprocessing and truncation, a time-series segment set is obtained. A structural kernel mapping coding mechanism is introduced to construct a set of structural features. Then, based on the set of structural features, an asymmetric topological graph is constructed, the local topological perturbation intensity of the nodes is calculated, and converted into a topological tension field in the time domain. Based on the preprocessed digital signal sequence, the structural kernel features of the preprocessed digital signal sequence are obtained, the structural perturbation quantization is calculated, and combined with the topological tension field in the time domain, the perturbation inversion structural response function is obtained, and the predicted value of the actual preload is calculated. Finally, the predicted value of the actual preload is corrected to obtain the monitoring result. This method solves the technical problem of non-contact, continuous, and high-precision online monitoring of bolt preload inside closed steel pipes.

This invention provides a method for adaptive and coordinated tension control in cable stranding processes, comprising: deploying a high-sampling-rate distributed fiber optic strain sensor array at key equipment nodes to acquire multi-point micro-strain signals in real time; performing sliding window phase space reconstruction and persistent cohomology calculation on the strain difference sequence through topological data analysis to dynamically generate a topological perturbation index characterizing structural disturbances; employing an adaptive threshold determination method to promptly detect potential instability; and utilizing a feedforward compensation algorithm based on graph attention networks to generate and project compensation commands to the servo driver. The method also includes a topological consistency verification and online fine-tuning mechanism to improve response robustness and adaptability. This invention enables early warning, accurate identification, and effective intervention of tension field structural instability during cable stranding, improving product processing stability and equipment operational reliability.

The application discloses a parameterized power transmission line tension field site arrangement simulation method and equipment, combines an interpolation method and a shape finding analysis method to perform structural characterization on extracted nodes, and performs parameterized modeling according to the characterized structure, and further obtains a tension field site model, the tension field site model accurately feeds back the shape of the tension field, and meanwhile, accurately feeds back the interaction relationship between each machine and each structure, provides an accurate, stable and consistent tension field site model with a construction site for subsequent tension field site simulation; arrangement simulation parameters after construction verification are input into a tension field site migration model again for cyclic processing until optimal arrangement simulation parameters are generated, the optimal arrangement simulation parameters are used as optimal tension field site construction parameters and are subjected to construction, and the problems that local engineering calculation is performed on the parameters by means of manual work, the calculation result is not standardized, and meanwhile, the positions of dangerous points in the tension field site arrangement cannot be accurately estimated are solved.

The invention relates to the technical field of high-voltage power transmission line construction, in particular to a power transmission line ground wire replacement construction method, which comprises the following steps of: installing a paying-off tackle on a tangent tower, and moving an old wire on the tangent tower into the paying-off tackle from an original suspension position of the old wire; a tension field and a traction field are arranged at the two ends of the line segment interval respectively, then the end of the old wire is removed from the original anchoring position on the first strain tower and the second strain tower respectively, and then a traction pipe or a traction assembly is installed at the end of the old wire; connecting the end part of the old wire with a new wire spread by a tensioner through a connecting device; the old wire is pulled by the traction equipment of the traction field, so that the new wire is synchronously unfolded under the traction of the old wire and the tensioning of the tensioner to complete replacement, and the technical problems of high construction risk, long period, high cost and harsh requirements on the operation field in the complex crossing environment of the traditional process of disassembling first and then unfolding can be solved.

This invention discloses an engineering design assistance method based on multi-source data fusion, comprising the following steps: Step 1: Obtaining a fragment set; Step 2: Obtaining a conflict development map; Step 3: Converting the conflict development map into a structured input sequence and inputting it into an improved MaskFormer model, constructing a conflict potential field distribution through a cross-source conflict potential field reflection mechanism, and obtaining a conflict structural unit set; Step 4: Determining the adjudication seed; Step 5: Constructing a manifold topological tension field and performing selective freezing; Step 6: Fusion updating of geometric structural fragments to generate candidate design schemes; Step 7: Matching and verifying the candidate design schemes and performance region fragments to obtain an optimized design scheme; Step 8: Performing consistency screening by combining the optimized design scheme and design intent expression fragments, and outputting the engineering design assistance result. This invention combines the improved MaskFormer model with the manifold topological tension field to achieve efficient engineering design assistance.

The invention provides an iron-based nanocrystalline magnetic ring subjected to composite field heat treatment, a preparation method of the iron-based nanocrystalline magnetic ring and a heat treatment device of the iron-based nanocrystalline magnetic ring, and relates to the technical field of iron-based nanocrystalline magnetic rings. The device sequentially comprises a feeding unit, a first magnetic field heat treatment unit, a tension adjusting unit, a second magnetic field heat treatment unit and a receiving unit, the tension adjusting unit comprises a roller set, and the roller set is matched with the feeding unit and the receiving unit to adjust and control the tension of the iron-based nanocrystalline alloy strip. According to the invention, the magnetic field and the tension field are compounded, the two fields are simultaneously superposed on the heat treatment process of the nanocrystalline magnetic ring by using one set of device, and the magnetic conductivity and the DC-bias characteristic of the product are balanced by adjusting the size of the magnetic field and the size of the tension, so that the nanocrystalline magnetic ring with excellent comprehensive performance is obtained.