4results about How to "Easy to grasp" patented technology

This invention belongs to the field of seismic design technology for railway bridges, and relates to a seismic analysis method for railway bridges using a variable friction coefficient friction pendulum bearing for seismic isolation and vibration reduction. This method is used to determine the design displacement D of the variable friction coefficient friction pendulum bearing; specifically, it includes the following steps: establishing an equivalent period T based on the design parameters of the variable friction coefficient friction pendulum bearing. eff The relationship between the coefficient of friction and the variable friction coefficient; based on the bridge design conditions, the relationship between the equivalent period and the acceleration response spectrum value is established, and S(T) is obtained. eff Determine the damping adjustment coefficient η; equivalent damping ratio ξ; establish support displacement and equivalent period T. eff S(T) eff By considering the relationship between η and η, and combining it with Newton's iteration process, the final support displacement D is determined. This invention saves time by using analytical expressions for calculation, avoiding tedious modeling, long computation times, and convergence issues compared to the finite element model nonlinear time history analysis method. This allows for rapid evaluation of the seismic performance of different support parameters and structural configurations during the scheme design, parameter optimization, and preliminary design stages.

The invention discloses a sintering end point prediction method based on big data. The method comprises the following steps: collecting historical data in a sintering process; cleaning and preprocessing the collected historical data; effective features are extracted from the preprocessed historical data, and an input variable with the most predictive capacity is determined through a feature selection method; training a sintering end point prediction model based on the extracted features by using a support vector machine (SVM) algorithm; and carrying out sintering end point prediction based on the trained prediction model. According to the method, the sintering process parameters are comprehensively analyzed through a big data technology and a machine learning algorithm, so that accurate prediction of the sintering end point is realized, and the prediction accuracy and reliability are greatly improved.

The invention provides an online monitoring data acquisition and analysis system for key parameters of a planetary rolling mill, which can display key technical parameter information in the operation process of rolling equipment in real time and can be analyzed for decision-making analysis, which includes a rolling mill lubrication system, a rolling mill cooling system, an inert gas Protection system, mandrel temperature measurement and cooling water detection system in rolling area, smart meter, data storage module, data transmission module and data analysis and summary module; The key parameters on the equipment are collected in real time, and the collected data is analyzed and processed to form a database, which is convenient for the enterprise to connect to the production situation and grasp the production cost in real time, and provides strong scientific data support for the enterprise's production decision-making.

The utility model relates to the field of low voltage apparatus, concretely relates to a contactor measuring device, including drive mechanism and mounting bracket, drive mechanism sets up on mounting bracket, still include force measurement distance measuring component, force measurement distance measuring component includes force measurement mechanism, distance measuring mechanism and the same position connecting piece that connects between force measurement mechanism and distance measuring mechanism, force measurement mechanism is equipped with force measurement part, drive mechanism is connected with force measurement mechanism, drive mechanism drives force measurement mechanism linear shift, makes force measurement part of force measurement mechanism close or far from the moving iron core of contactor, force measurement mechanism drives distance measuring mechanism action through same position connecting piece. Synchronous force measurement and distance measurement, measurement position is easy to grasp, and measurement result is more accurate.