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Novel self-adaptive three-dimensional variable stiffness shock isolation device
The invention discloses a novel self-adaptive three-dimensional variable stiffness shock isolation device. The novel self-adaptive three-dimensional variable stiffness shock isolation device includesa bearing platform. The bottom of the bearing platform is connected with a device upper limit plate through steel springs. A plurality of support rods are fixedly connected to the bottom of the bearing platform. The bottoms of the plurality of support rods penetrate the device upper limit plate and extend to the bottom of the device upper limit plate. The steel springs are arranged on the outer side walls of the support rods in a sleeving mode. The bottom of the bearing platform is fixedly connected with a fixing rod. According to the shock isolation device, the three-dimensional variable stiffness shock isolation device is composed of three parts: a Z-axis damping device, an X-axis damping device and a Y-axis damping device, can be applied to three-dimensional damping and isolation, ground motion caused by earthquakes compress spring elements of the shock isolation device, the mechanical property of variable stiffness is generated, force opposite to the direction of motion is providedat the initial stage, force consistent with the direction of motion is provided after a certain distance is reached, thus positive stiffness is provided for limiting the displacement of a shock isolation layer for minor earthquakes, and negative stiffness is provided for achieving the shock isolation effect for moderate and major earthquakes.
本发明公开了新型自适应三维变刚度隔震装置，包括承台，所述承台的底部通过钢弹簧连接有装置上限位板，所述承台的底部固定连接有多个支杆，多个所述支杆的底部贯穿装置上限位板并往装置上限位板的底部延伸，所述钢弹簧套设在支杆的外侧壁上，所述承台的底部固定连接有固定杆。本发明中，该三维变刚度减震装置由Z轴、X轴、Y轴减震装置三个部分组成，可以运用于三维减隔震中，地震引起的地面运动会使装置的弹簧元件压缩，产生变刚度的力学特性，起始阶段提供与运动方向相反的力，到达一定距离后提供与运动方向一致的力，从而实现小震时提供正刚度限制隔震层位移，中震、大震时提供负刚度实现隔震效果。
Novel self-adaptive three-dimensional variable stiffness shock isolation device
The invention discloses a novel self-adaptive three-dimensional variable stiffness shock isolation device. The novel self-adaptive three-dimensional variable stiffness shock isolation device includesa bearing platform. The bottom of the bearing platform is connected with a device upper limit plate through steel springs. A plurality of support rods are fixedly connected to the bottom of the bearing platform. The bottoms of the plurality of support rods penetrate the device upper limit plate and extend to the bottom of the device upper limit plate. The steel springs are arranged on the outer side walls of the support rods in a sleeving mode. The bottom of the bearing platform is fixedly connected with a fixing rod. According to the shock isolation device, the three-dimensional variable stiffness shock isolation device is composed of three parts: a Z-axis damping device, an X-axis damping device and a Y-axis damping device, can be applied to three-dimensional damping and isolation, ground motion caused by earthquakes compress spring elements of the shock isolation device, the mechanical property of variable stiffness is generated, force opposite to the direction of motion is providedat the initial stage, force consistent with the direction of motion is provided after a certain distance is reached, thus positive stiffness is provided for limiting the displacement of a shock isolation layer for minor earthquakes, and negative stiffness is provided for achieving the shock isolation effect for moderate and major earthquakes.
本发明公开了新型自适应三维变刚度隔震装置，包括承台，所述承台的底部通过钢弹簧连接有装置上限位板，所述承台的底部固定连接有多个支杆，多个所述支杆的底部贯穿装置上限位板并往装置上限位板的底部延伸，所述钢弹簧套设在支杆的外侧壁上，所述承台的底部固定连接有固定杆。本发明中，该三维变刚度减震装置由Z轴、X轴、Y轴减震装置三个部分组成，可以运用于三维减隔震中，地震引起的地面运动会使装置的弹簧元件压缩，产生变刚度的力学特性，起始阶段提供与运动方向相反的力，到达一定距离后提供与运动方向一致的力，从而实现小震时提供正刚度限制隔震层位移，中震、大震时提供负刚度实现隔震效果。
Novel self-adaptive three-dimensional variable stiffness shock isolation device
新型自适应三维变刚度隔震装置
LIU TAO (author) / LIU ZUQING (author) / GAO YANG (author) / WANG CHUN (author)
2020-11-06
Patent
Electronic Resource
Chinese
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