4results about How to "Increase proximity" patented technology

The invention discloses a rail transit gearbox bearing test platform, which comprises a platform, and a driving device, a radial loading device, an axis axial loading device, an eccentric axial loading device, a first test device and a second test device which are arranged on the platform, the radial loading device is slidably mounted on the platform; the first test device and the second test device are both provided with oil ways. Through the arrangement of the first test device, the second test device, the axis axial loading device and the eccentric axial loading device, the overall performance test of a group of output end or input end gearbox bearings is realized. Meanwhile, radial loads can be applied to different bearings during tests through the arranged radial loading device capable of conducting position adjustment, the applicability of the device is greatly improved, it can be guaranteed that various test requirements of two kinds of gear box bearings can be met, and the test platform can be used for testing the two kinds of gear box bearings through simulation of matching of the real state and the installation layout structure. Performance verification of the gearbox bearing under various working conditions can be achieved, it is guaranteed that test conditions are close to real operation working conditions, and reliability of test results is improved.

The invention provides a method for accurately simulating corrosion acceleration of a metal material in an atmospheric environment. According to the method, the sequence of different test stages of the corrosion test and the test parameters of different corrosion tests are designed, particularly the damp heat test and the salt spray test which play a key role in corrosion acceleration, so that the test parameters meet a specific relational expression, the closeness degree of an accelerated corrosion result and an actual corrosion result can be remarkably improved, and the test efficiency is improved. The service life of the material can be estimated more accurately, and the test cost and the test period are reduced.

The present disclosure belongs to the technical field of geophysical information processing, and is a spatial anomaly weight determination method and system based on time series similarity, comprising: data clustering classification on CO surface concentration original data; obtaining CO anomaly data based on the clustering result; calculating the Benioff energy accumulation curve; performing anomaly accumulation processing on the extracted CO anomaly data to obtain an anomaly accumulation curve, and performing normalization processing on the anomaly accumulation curve and the corresponding Benioff energy accumulation curve; calculating the time series similarity between the normalized anomaly accumulation curve and the Benioff energy accumulation curve; and taking the time series similarity as a target function to obtain an optimized spatial weight parameter. The present disclosure can adaptively determine the spatial weight based on the time structure similarity, improve the correlation between the anomaly analysis result and the seismic activity, and is suitable for seismic related anomaly detection and analysis.

The invention belongs to the technical field of geophysical information processing, and relates to a spatial anomaly weight determination method and system based on time sequence similarity, and the method comprises the steps: carrying out the data clustering classification of CO surface concentration original data; obtaining CO abnormal data based on a clustering result; calculating to obtain a Benniov energy accumulation curve; performing abnormal accumulation processing on the extracted CO abnormal data to obtain an abnormal accumulation curve, and performing normalization processing on the abnormal accumulation curve and a corresponding Beniov energy accumulation curve; calculating the time sequence similarity between the normalized abnormal accumulation curve and the Benniov energy accumulation curve; and taking the time sequence similarity as a target function to obtain an optimized space weight parameter. According to the invention, the spatial weight can be adaptively determined based on the time structure similarity, the correlation between the anomaly analysis result and the seismic activity is improved, and the method is suitable for seismic correlation anomaly detection and analysis.