Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Passive damping device capable of achieving complex damping self-adaptive control characteristic
The invention belongs to the technical field of building and bridge shock absorption and isolation, and particularly discloses a passive damping device capable of achieving a complex damping self-adaptive control characteristic. The passive damping device comprises an outer sleeve, a guide rod, a negative stiffness unit and a damping unit, wherein the guide rod extends into the outer sleeve from one end of the outer sleeve and can reciprocate in the outer sleeve; the negative stiffness unit is connected with the guide rod and used for providing negative stiffness for the guide rod; the damping unit is arranged in the outer sleeve and comprises a piston with a hole and an oil chamber, one side of the piston with the hole is connected with the tail end of the guide rod through a spring assembly, and the piston with the hole is arranged in the oil chamber and divides the oil chamber into two parts; and viscous liquid is contained in the oil chamber, and when the piston with the hole moves in the oil chamber, the viscous liquid flows between the two parts of the oil chamber through a piston hole in the piston with the hole. According to the passive damping device, through a negative stiffness device and a Maxwell damping model which are connected in parallel, the magnitude of control force provided by the passive damping device is irrelevant to the excitation frequency, and the complex damping self-adaptive control characteristic can be achieved.
本发明属于建筑与桥梁减、隔震技术领域，并具体公开了一种可实现复阻尼自适应控制特性的被动减震装置，其包括外套筒、导杆、负刚度单元和阻尼单元，其中：导杆从外套筒一端伸入，且该导杆可在外套筒中往复运动；负刚度单元与导杆连接，用于给导杆提供负刚度；阻尼单元设置在外套筒内，其包括带孔活塞和油室，其中，带孔活塞一侧通过弹簧组件与导杆末端相连，该带孔活塞设置在油室中，将油室分为两部分；所述油室内装有粘滞液体，带孔活塞在油室中活动时，粘滞液体通过带孔活塞上的活塞孔在油室两部分之间流动。本发明通过并联连接的负刚度装置和Maxwell阻尼模型，其提供的控制力大小与激励频率无关，可实现复阻尼的自适应控制特性。
Passive damping device capable of achieving complex damping self-adaptive control characteristic
The invention belongs to the technical field of building and bridge shock absorption and isolation, and particularly discloses a passive damping device capable of achieving a complex damping self-adaptive control characteristic. The passive damping device comprises an outer sleeve, a guide rod, a negative stiffness unit and a damping unit, wherein the guide rod extends into the outer sleeve from one end of the outer sleeve and can reciprocate in the outer sleeve; the negative stiffness unit is connected with the guide rod and used for providing negative stiffness for the guide rod; the damping unit is arranged in the outer sleeve and comprises a piston with a hole and an oil chamber, one side of the piston with the hole is connected with the tail end of the guide rod through a spring assembly, and the piston with the hole is arranged in the oil chamber and divides the oil chamber into two parts; and viscous liquid is contained in the oil chamber, and when the piston with the hole moves in the oil chamber, the viscous liquid flows between the two parts of the oil chamber through a piston hole in the piston with the hole. According to the passive damping device, through a negative stiffness device and a Maxwell damping model which are connected in parallel, the magnitude of control force provided by the passive damping device is irrelevant to the excitation frequency, and the complex damping self-adaptive control characteristic can be achieved.
本发明属于建筑与桥梁减、隔震技术领域，并具体公开了一种可实现复阻尼自适应控制特性的被动减震装置，其包括外套筒、导杆、负刚度单元和阻尼单元，其中：导杆从外套筒一端伸入，且该导杆可在外套筒中往复运动；负刚度单元与导杆连接，用于给导杆提供负刚度；阻尼单元设置在外套筒内，其包括带孔活塞和油室，其中，带孔活塞一侧通过弹簧组件与导杆末端相连，该带孔活塞设置在油室中，将油室分为两部分；所述油室内装有粘滞液体，带孔活塞在油室中活动时，粘滞液体通过带孔活塞上的活塞孔在油室两部分之间流动。本发明通过并联连接的负刚度装置和Maxwell阻尼模型，其提供的控制力大小与激励频率无关，可实现复阻尼的自适应控制特性。
Passive damping device capable of achieving complex damping self-adaptive control characteristic
一种可实现复阻尼自适应控制特性的被动减震装置
ZHU HONGPING (Autor:in) / LUO HAO (Autor:in) / ZHOU FANGYUAN (Autor:in)
24.08.2021
Patent
Elektronische Ressource
Chinesisch
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