4 results about "Displacement based" patented technology

This invention discloses a deformation analysis method for multi-bolt structural connections based on displacement field equivalence and machine learning, relating to the field of advanced aircraft connection technology, and aimed at solving the technical problems of high computational load and low efficiency in existing technologies. The method includes: establishing a refined model of a single bolt connection process; analyzing the deformation of the connected components during the connection process based on the refined model; obtaining the equivalent load based on the deformation displacement field; constructing a multi-bolt connection deformation analysis model and creating connection elements within the analysis model; simulating the overall component by inputting the equivalent load to obtain a sample dataset; training a machine learning model using the sample dataset and learning the mapping relationship between load boundary conditions and deformation response from the simulation samples; and predicting the deformation of the multi-bolt structural connection based on the trained machine learning model.

This invention discloses a method for seismic-resistant hybrid reinforcement and dynamic control of steel-concrete composite members, relating to the field of civil engineering technology. The method includes configuring an internal steel section, an external high-strength steel bar, and an external fiber-reinforced composite bar to form a hybrid reinforcement system; determining the initial stiffness and mass distribution of the member; calculating the fundamental period of the structure; establishing a dynamic weight relationship between the contribution of each reinforcement component to resisting forces and the inter-story displacement based on the hybrid reinforcement system; obtaining the characteristic period of seismic motion at the target site; determining the dynamic matching characteristics in conjunction with the fundamental period of the structure; and evaluating the required damping level of the member using the dynamic weight relationship; setting adjustable energy dissipation elements in key areas of the member according to the required damping level to form a damping control scheme corresponding to the dynamic matching characteristics; and, based on the damping control scheme, deploying a main energy dissipation zone using low-yield-point steel and an auxiliary energy dissipation zone using shape memory alloy materials in the nodal region and mid-span region, respectively.

The application discloses a kind of digital construction control methods of high-rise building steel skeleton inclined column, to solve the precision control problem caused by structural dynamic deformation and error accumulation in construction process.The method uses extended Kalman filter to estimate the real-time global deviation state of structure online, and combines recursive least squares method to identify and adaptively update the structure state space model online;Further, the theoretical design pose, the environment-induced displacement based on environment data prediction, and the active compensation displacement for active suppression of deviation are synthesized to determine the optimal installation pose of the inclined column to be installed;Finally, digital instructions are generated to guide construction, and the actual installation pose is measured to form a closed-loop feedback for correcting the state estimation of the next cycle.The application can actively suppress error accumulation through closed-loop control combining model adaptation and predictive compensation, improving the construction accuracy and robustness of high-rise building.

The application provides a marine structure anti-collision performance multi-working condition iterative optimization method and device, including: establishing a finite element analysis model containing soil layer information; applying an operating period dead load to the finite element analysis model and performing static force solving to obtain an initial working condition of a ship collision load; obtaining a plurality of impact working conditions, calculating total ship collision energy and deformation control displacement; performing trial calculation on components of the finite element analysis model and setting the components as fiber beam units; calculating structure energy absorption of the plurality of impact working conditions; calculating energy ratios of the plurality of impact working conditions based on the structure energy absorption and the total ship collision energy, adjusting impact coefficients based on the energy ratios; calculating maximum displacements of the plurality of impact working conditions, calculating displacement ratios of the plurality of impact working conditions based on the maximum displacements and the deformation control displacement, adjusting diameters of rod members and wall thicknesses of the rod members based on the displacement ratios; and outputting final diameters of the rod members and wall thicknesses of the rod members. In the method, marine structure sizes can be automatically iteratively optimized, and the working efficiency of designers is improved.