Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Amplified negative-stiffness friction damping wall
The invention relates to an amplified negative-stiffness friction damping wall, and belongs to the technical field of vibration control. The amplified negative-stiffness friction damping wall comprises a top steel plate, a bottom friction plate, side plates, a nitrogen spring nesting device, a pre-pressing nitrogen spring, a polished rod, a linear bearing, a pressure transmission plate, a rail wheel, a secondary lever system, a rotating rod, a friction plate and a friction sheet. Elastic force of the pre-pressing nitrogen spring is amplified through the secondary lever system, the amplified elastic force extrudes the friction plate through the rotating rod, the friction sheet is embedded into the bottom of the friction plate to generate friction force with the bottom friction plate, and when the damping wall generates relative displacement, the rotating rod generates negative stiffness force along a horizontal component, namely negative stiffness damping is formed. The amplified negative-stiffness friction damping wall is applied to structural vibration reduction control, has a good and stable negative stiffness characteristic, and achieves the purpose of controlling structural displacement and acceleration response by reducing the equivalent stiffness of the structure and increasing structural damping.
本发明涉及一种放大型负刚度摩擦阻尼墙，属于振动控制技术领域。包括顶部钢板、底部摩擦板、侧板、氮气弹簧嵌套装置、预压氮气弹簧、光杆、直线轴承、传压板、轨道轮、二次杠杆系统、转杆、摩擦板、摩擦片；预压氮气弹簧弹力通过二次杠杆系统放大，放大后的弹力通过转杆挤压摩擦板,摩擦板底部镶嵌摩擦片与底部摩擦板产生摩擦力，当阻尼墙产生相对位移时，转杆产生沿水平分量的负刚度力，即形成负刚度阻尼。本发明应用于结构减振控制中，具有良好稳定的负刚度特性，通过降低结构的等效刚度，增大结构阻尼，实现控制结构位移和加速度响应的目的。
Amplified negative-stiffness friction damping wall
The invention relates to an amplified negative-stiffness friction damping wall, and belongs to the technical field of vibration control. The amplified negative-stiffness friction damping wall comprises a top steel plate, a bottom friction plate, side plates, a nitrogen spring nesting device, a pre-pressing nitrogen spring, a polished rod, a linear bearing, a pressure transmission plate, a rail wheel, a secondary lever system, a rotating rod, a friction plate and a friction sheet. Elastic force of the pre-pressing nitrogen spring is amplified through the secondary lever system, the amplified elastic force extrudes the friction plate through the rotating rod, the friction sheet is embedded into the bottom of the friction plate to generate friction force with the bottom friction plate, and when the damping wall generates relative displacement, the rotating rod generates negative stiffness force along a horizontal component, namely negative stiffness damping is formed. The amplified negative-stiffness friction damping wall is applied to structural vibration reduction control, has a good and stable negative stiffness characteristic, and achieves the purpose of controlling structural displacement and acceleration response by reducing the equivalent stiffness of the structure and increasing structural damping.
本发明涉及一种放大型负刚度摩擦阻尼墙，属于振动控制技术领域。包括顶部钢板、底部摩擦板、侧板、氮气弹簧嵌套装置、预压氮气弹簧、光杆、直线轴承、传压板、轨道轮、二次杠杆系统、转杆、摩擦板、摩擦片；预压氮气弹簧弹力通过二次杠杆系统放大，放大后的弹力通过转杆挤压摩擦板,摩擦板底部镶嵌摩擦片与底部摩擦板产生摩擦力，当阻尼墙产生相对位移时，转杆产生沿水平分量的负刚度力，即形成负刚度阻尼。本发明应用于结构减振控制中，具有良好稳定的负刚度特性，通过降低结构的等效刚度，增大结构阻尼，实现控制结构位移和加速度响应的目的。
Amplified negative-stiffness friction damping wall
放大型负刚度摩擦阻尼墙
SUN TIANWEI (Autor:in) / PENG LINGYUN (Autor:in) / GUAN YAXI (Autor:in) / FU YANWEI (Autor:in)
09.02.2021
Patent
Elektronische Ressource
Chinesisch
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