30results about How to "Calculation results are intuitive" patented technology

The present invention provides a high-speed rail settlement hazard assessment method based on multi-source data integration, comprising the following steps: S1, using InSAR technology to collect ground deformation data, including collecting InSAR image data, optical remote sensing image data, hydrogeological data, two Leveling survey data; S2, preprocessing the data collected in step S1; S3, using PS‑InSAR+SBAS‑InSAR two time series InSAR technology to analyze and extract the ground deformation results; S4, for the settlement separation of the background area of ​​the high-speed rail line; S5 1. Use the MIC algorithm to assign weights to the hazard factors that affect the ground deformation; S6. Assessment of the hazard of land subsidence. The evaluation result of the high-speed railway subsidence hazard assessment method based on multi-source data integration tends to be a large-scale, fast, objective, economical and efficient land subsidence hazard assessment system to achieve long-term monitoring and ensure the safe development of the city , to reduce its threat to the economic security of life and property.

The present invention discloses a signal self adaption envelope solving method based on optimal signal to noise ratio. The method comprises: obtaining signals to be processed comprising fault information and obtained through sampling a preset sampling frequency when a rotary machine performs fault monitoring; constructing a tree-shaped search structure, wherein the frequency band corresponding to each node in the tree-shaped search structure is obtained through calculation according to the preset sampling frequency and the number of each layer of the nodes; performing filtering processing of the signals to be processed according to the frequency band of each node, and obtaining the filtering signals corresponding to each node; performing envelope demodulation processing of the filtering signals, and obtaining the envelope solving signals corresponding to each node and an envelope spectrum thereof; calculating the signal to noise ratio of each envelope solving signal according to the envelope spectrum, and obtaining the signal to noise ratio corresponding to each node; and selecting the envelope spectrum corresponding to the maximum signal to noise ratio as an optimal envelope spectrum to facilitate analysis of the fault frequency and harmonic wave of the signals to be processed. The present invention discloses a calculation device configured to execute the method.

The invention relates to the technical field of arch bridge vibration frequency calculation, in particular to a steel tube concrete arch bridge vibration frequency calculating method which comprises the following steps: simulating components such as arch ribs, tie bar beams and transverse beams of a steel tube concrete arch bridge by using a beam unit, simulating a pull rope by using a rod unit, establishing a concrete beam unit rigidity matrix as shown in the specification when ambient temperature is introduced, establishing a steel tube beam unit rigidity matrix as shown in the specification when the ambient temperature is introduced, establishing a pull rope unit rigidity matrix as shown in the specification when the ambient temperature is introduced, establishing a steel tube concrete bridge structure overall rigidity matrix as shown in the specification when the ambient temperature is introduced, and solving a steel tube concrete bridge structure vibration characteristic value equation, thereby obtaining a structural characteristic value and a characteristic vector after temperature variation, wherein in the equations, the characteristic value lambda s is square of frequency; the characteristic vector {phi s} is a vibration mode. Frequency data obtained by using the steel tube concrete arch bridge vibration frequency calculating method provided by the invention can be used as prior data before an arch bridge is designed, the calculation result is visible, and reference can be provided for reasonable design, construction management and safe operation of the arch bridge.