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Adjustable vertical ultralow-frequency tuned mass damper based on positive and negative stiffness combination
The invention relates to the technical field of engineering structure vibration control, in particular to an adjustable vertical ultralow-frequency tuned mass damper based on positive and negative stiffness combination, which is mounted on a main structure needing vibration control. Comprising a bottom plate, a vertical spring assembly, a damping assembly, a horizontal adjustable pre-pressing negative stiffness assembly, a mass block and a structural vibration sensing monitor. According to the tuned mass damper, the vertical spring is used for providing positive stiffness, the horizontal adjustable pre-pressing negative stiffness assembly is used for providing negative stiffness, bearing is provided through reasonable combination of the positive stiffness and the negative stiffness, and the overall equivalent dynamic stiffness needed by movement of the mass block is controlled; the static compression amount of the vertical ultralow-frequency tuned mass damper can be effectively reduced, and the frequency can be adjusted in a stepless mode in real time according to the control requirement of a controlled structure, so that the size of the tuned mass damper can be reduced, and the application range of the tuned mass damper is widened.
本发明涉及工程结构振动控制技术领域，尤其是涉及一种基于正负刚度组合的可调式竖向超低频调谐质量阻尼器，安装于需要振动控制的主结构之上，包括底板、竖向弹簧组件、阻尼组件、水平向可调节预压负刚度组件、质量块和结构振动传感监测器。本发明的调谐质量阻尼器利用竖向弹簧提供正刚度，利用水平向可调节预压负刚度组件提供负刚度，通过合理的正负刚度组合提供承载、控制质量块运动所需的整体等效动刚度，起到可有效减少竖向超低频调谐质量阻尼器的静压缩量以及可根据受控结构的控制需求可实时无极调节频率的作用，从而可将该调谐质量阻尼器的体积减小并且提升适用范围。
Adjustable vertical ultralow-frequency tuned mass damper based on positive and negative stiffness combination
The invention relates to the technical field of engineering structure vibration control, in particular to an adjustable vertical ultralow-frequency tuned mass damper based on positive and negative stiffness combination, which is mounted on a main structure needing vibration control. Comprising a bottom plate, a vertical spring assembly, a damping assembly, a horizontal adjustable pre-pressing negative stiffness assembly, a mass block and a structural vibration sensing monitor. According to the tuned mass damper, the vertical spring is used for providing positive stiffness, the horizontal adjustable pre-pressing negative stiffness assembly is used for providing negative stiffness, bearing is provided through reasonable combination of the positive stiffness and the negative stiffness, and the overall equivalent dynamic stiffness needed by movement of the mass block is controlled; the static compression amount of the vertical ultralow-frequency tuned mass damper can be effectively reduced, and the frequency can be adjusted in a stepless mode in real time according to the control requirement of a controlled structure, so that the size of the tuned mass damper can be reduced, and the application range of the tuned mass damper is widened.
本发明涉及工程结构振动控制技术领域，尤其是涉及一种基于正负刚度组合的可调式竖向超低频调谐质量阻尼器，安装于需要振动控制的主结构之上，包括底板、竖向弹簧组件、阻尼组件、水平向可调节预压负刚度组件、质量块和结构振动传感监测器。本发明的调谐质量阻尼器利用竖向弹簧提供正刚度，利用水平向可调节预压负刚度组件提供负刚度，通过合理的正负刚度组合提供承载、控制质量块运动所需的整体等效动刚度，起到可有效减少竖向超低频调谐质量阻尼器的静压缩量以及可根据受控结构的控制需求可实时无极调节频率的作用，从而可将该调谐质量阻尼器的体积减小并且提升适用范围。
Adjustable vertical ultralow-frequency tuned mass damper based on positive and negative stiffness combination
一种基于正负刚度组合的可调式竖向超低频调谐质量阻尼器
ZHU WEIFENG (Autor:in) / SUN LIMIN (Autor:in) / CHEN LIN (Autor:in)
06.09.2024
Patent
Elektronische Ressource
Chinesisch
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