With the progress of engineering, technology viscous damper are widely used in the field of engineering structures. Its principle is that when the external normal disturbance on the structure, the viscous damper will not generate damping force on the structure; when there is a strong external disturbance (strong earthquake, strong wind), The dampers can produce a reaction force, which can reduce the damage of the structure and improve its seismic capability. In this paper, the new viscous damper has been experimentally tested, including: 1. Test for maximum damping force; 2. Test for damping coefficient, damping exponent; 3. hysteresis curve. By analyzing the experimental data, the actual performance parameters of the new viscous damper are obtained, which provides certain support for future mass production and use of the product.
Mild steel dampers are widely used in the field of engineering structures energy dissipation and seismic reduction because of its advantages such as easy manufacturing, low cost and easy installation and replacement. In order to analyse and compare the performance of the different mild steel dampers, eight different shape shearing mild steel dampers are designed in this paper, and the simulation analysis is conducted using Finite Element Method (FEM) of ABAQUS/Standard. And the bearing capacity, initial stiffness and energy dissipation capacity of the different shearing mild stell dampers are compared according to the simulation results. The analysis and comparison results show that the performance of shearing mild steel damper is greatly affected by its shape. Therefore, the different shearing mild steel dampers should be selected reasonably according to the engineering requirements.
In the fields of civil engineering, aerospace and mechanical manufacturing, inertia mass is a very common form of load. The research on the response of inertia mass under dynamic load can provide a strong basis for the research in the above fields. In this paper, in order to study the response of inertia mass under dynamic load, a high-speed dynamic actuator is used to carry out sinusoidal loading and impact loading on an inertia mass, and its response under dynamic load is studied, which can provide a basic basis for the follow-up study of inertia mass. It can be concluded from the response analysis of inertia mass that the motion of inertia mass satisfies the basic laws of kinematics and dynamics.
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