Suspension tunnel damping device performance hybrid simulation test method and device

Abstract

The invention provides a suspension tunnel damping device performance hybrid simulation test method and device. The method is used for solving the problems of damper design optimization and damping effect verification for anchor cable vibration control research of the suspension tunnel. The method comprises the following specific steps: aiming at different research emphasis, dividing a shock absorber, a suspension tunnel, an anchor cable and a fluid into different physical substructures and numerical substructures; establishing a simulation model of the numerical substructure based on a finite element algorithm or related software; prefabricating and installing the physical substructure according to a foot scale model or a reduced scale model; through a control system, a data interaction system and a data acquisition system, completing loading control on the physical substructure by the calculation information of the numerical substructure, and updating a model of the numerical substructure by the measurement information of the physical substructure; and extracting required information through visual interface monitoring. According to the method, the problem that pure numerical simulation cannot simulate a complex suspension tunnel-anchor cable-fluid system model is avoided; the vibration response of the system can not truly reflect under the installation of the shock absorber, various uncontrollable factors for verifying the performance of the shock absorber under a real bridge test and traffic problems possibly caused by the test are also avoided, and the problems of complex modeling, high calculation pressure, field limitation and the like are solved by utilizing the substructure technology of the hybrid simulation test.

Description

technical field [0001] The invention relates to the technical field of simulation and test of civil engineering structures, in particular to a performance hybrid simulation test method and device of a suspension tunnel vibration damping device. Background technique [0002] With the continuous development of traffic engineering and the continuous growth of human needs, more structures across rivers and seas have been widely designed and applied. Among them, as a new type of structure, the floating tunnel is considered to be very suitable for cross-river and sea projects due to its advantages such as being less affected by geological conditions. As an important part of the floating tunnel system, the anchor cable structure is prone to local vibrations under various excitations due to its characteristics of small damping, small mass and high flexibility. The vibration of the anchor cable may cause structural fatigue and cause structural safety problems, which is not conducive...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to overcome the deficiencies in the prior art and provide a hybrid simulation test method and device for the performance of suspension tunnel vibration damping devices, which can avoid the disadvantages of using pure numerical algorithms to simulate complex structures, and can Solve the problems of limited land occupation and high maintenance cost of traditional test technology

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