Vertical seismic modeling test bench based on fuzzy control

Abstract

The invention relates to a vertical seismic modeling test bench based on fuzzy control, which comprises a test bench rack, a seismic modeling device and a seismic isolation hydraulic device. The vertical seismic modeling test bench is characterized in that the test bench rack comprises a bracket base and a bracket; the seismic modeling device comprises a seismic modeling hydraulic cylinder and a servo proportioning valve, and the seismic modeling hydraulic cylinder is mounted on the bracket base of the test bench rack; the seismic isolation hydraulic device comprises an upper seismic isolation hydraulic cylinder and a lower seismic isolation hydraulic cylinder; piston rods of the upper seismic isolation hydraulic cylinder and the lower seismic isolation hydraulic cylinder are opposite and in rigid connection together through a load hanger; a cylinder body of the lower seismic isolation hydraulic cylinder is connected on a piston rod of the seismic modeling hydraulic cylinder; a cylinder body of the upper seismic isolation hydraulic cylinder and a connecting plate arranged at the upper part of the bracket are in the rigid connection; a first position sensor is connected onto the piston rod of the seismic isolation hydraulic cylinder; and a second position sensor is connected onto the load hanger. The vertical seismic modeling test bench based on fuzzy control has the advantages of real-time performance and accuracy when used in vertical seismic modeling, data collection and data processing.

Description

technical field [0001] The invention belongs to the field of earthquake simulation experiment devices, and relates to a vertical earthquake simulation experiment platform based on fuzzy control. Specifically, it is a hydraulically driven, electro-hydraulic servo control system based on fuzzy control, which is used to simulate vertical earthquake test equipment. It is mainly used for the performance test of the hydraulic cylinder type vertical vibration isolation device. Background technique [0002] Domestic and foreign research on earthquake simulation test benches is mostly limited to mechanical and electrical technology, which is a large-scale equipment with complex structure, large volume, high cost, and low response accuracy, which cannot truly simulate seismic waves. The unique advantages of hydraulic technology, high frequency response, easy control of flow and pressure, and reasonable design can simulate seismic signals very well. At present, hydraulic technology is...

AI Technical Summary

Problems solved by technology

At present, there is no report on the hydraulically driven vertical seismic simulation test bench using the electro-hydraulic servo control system.

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