A semi-active porous self-powered multi-dimensional shock absorber

Abstract

The invention discloses a semi-active porous self-powered multi-dimensional shock absorber. The semi-active porous self-powered multi-dimensional shock absorber comprises two spherical cavities insideand outside, the two cavities are connected through spring devices, and the inner cavity and the outer cavity are filled with porous material. The inner spherical cavity is hollow, and a spherical liquid container is arranged in the center of the inner spherical cavity. A certain number of mass balls are arranged inside the inner cavity; the spherical liquid container in the center of the inner cavity is connected with the wall of the inner cavity through cylindrical channels; damping channels are arranged in the cylindrical channels, and the damping channels are externally wound with magnetexciting coils; and a piezoelectric power generating unit is arranged on the inner side wall of the inner cavity, and the piezoelectric power generating unit is connected in series with a controller and an electric energy extraction and storage unit to form a closed loop, and the controller and the electric energy extraction and storage unit are fixed to the outer wall of the cylindrical channels.The eight spring device, the eight cylindrical channels and eight piezoelectric power generating devices in vertical planes are evenly distributed. The vertical planes rotate around the central axisof a sphere, and the eight vertical planes are evenly distributed within 360 degrees of the horizontal plane.

Description

technical field [0001] The invention relates to a semi-active porous self-powered multi-dimensional shock absorber, in particular to a damper combined with magneto-rheological piezoelectric power generation and porous materials, which is mainly used for vibration reduction control of engineering structures. Background technique [0002] With the rapid development of social economy, the structural forms of buildings are becoming more and more diverse. However, in recent years, environmental factors such as wind and earthquakes have caused damage or even collapse of buildings. Therefore, vibration has an important impact on the safety, applicability and durability of buildings. Become a non-negligible part of disaster prevention and mitigation of buildings. In the field of civil engineering, for buildings with relatively complex structures, especially for long-span, high-rise, flexible structures, horizontal and vertical vibrations are prone to occur under strong vibrations, r...

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Problems solved by technology

With the development of society, the form of building structure is constantly enriched, the height is constantly increasing, and there are many uncertain factors of environmental load. The pure horizontal and vertical vibration can no longer meet the vibration control requirements.

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