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A platform for research: civil engineering, architecture and urbanism
Inertia-enhanced quasi-zero stiffness vibration isolator and floating slab ballast bed system
The invention provides an inertia-enhanced quasi-zero stiffness vibration isolator and a floating slab ballast bed system. The system mainly comprises a vertical steel spring, an inclined elastic component and a screw rotation type ball screw inerter. One end of the vertical steel spring is fixed on the cylindrical supporting base, and the other end is fixed at the lower end of the bearing plate; one end of each side inclined elastic component is fixed on the upper edge of the cylindrical supporting base, and the other end is connected with the side surface of the bearing plate; when a train passes by, the floating plate performs vertical reciprocating motion, the stroke chamber of the inerter performs vertical motion, and the ball in the nut rotates to drive the lead screw to rotate, so that the flywheel is driven to rotate, and the required inertial mass is obtained. By the adoption of the vibration isolator, low-frequency vibration of a traditional steel spring floating slab track can be effectively reduced.
本发明提供一种惯性增强准零刚度隔振器和浮置板道床系统。该系统主要包括：竖向钢弹簧、斜弹性部件和丝杠旋转式滚珠丝杠惯容器。竖向钢弹簧一端固定在筒性支撑底座，另一端固定在承载板的下端；两侧斜弹性部件一端固定在筒形支撑底座的上边缘，另一端与承载板的侧面相连；惯容器选择滚珠丝杠式当列车通过时，浮置板做竖向往复运动，惯容器的行程室随之做竖向运动，螺母内部的滚珠转动带动丝杠的旋转，从而带动飞轮的转动，获得所需的惯性质量。采用本发明提出供的隔振器可有效降低传统钢弹簧浮置板轨道的低频振动。
Inertia-enhanced quasi-zero stiffness vibration isolator and floating slab ballast bed system
The invention provides an inertia-enhanced quasi-zero stiffness vibration isolator and a floating slab ballast bed system. The system mainly comprises a vertical steel spring, an inclined elastic component and a screw rotation type ball screw inerter. One end of the vertical steel spring is fixed on the cylindrical supporting base, and the other end is fixed at the lower end of the bearing plate; one end of each side inclined elastic component is fixed on the upper edge of the cylindrical supporting base, and the other end is connected with the side surface of the bearing plate; when a train passes by, the floating plate performs vertical reciprocating motion, the stroke chamber of the inerter performs vertical motion, and the ball in the nut rotates to drive the lead screw to rotate, so that the flywheel is driven to rotate, and the required inertial mass is obtained. By the adoption of the vibration isolator, low-frequency vibration of a traditional steel spring floating slab track can be effectively reduced.
本发明提供一种惯性增强准零刚度隔振器和浮置板道床系统。该系统主要包括：竖向钢弹簧、斜弹性部件和丝杠旋转式滚珠丝杠惯容器。竖向钢弹簧一端固定在筒性支撑底座，另一端固定在承载板的下端；两侧斜弹性部件一端固定在筒形支撑底座的上边缘，另一端与承载板的侧面相连；惯容器选择滚珠丝杠式当列车通过时，浮置板做竖向往复运动，惯容器的行程室随之做竖向运动，螺母内部的滚珠转动带动丝杠的旋转，从而带动飞轮的转动，获得所需的惯性质量。采用本发明提出供的隔振器可有效降低传统钢弹簧浮置板轨道的低频振动。
Inertia-enhanced quasi-zero stiffness vibration isolator and floating slab ballast bed system
一种惯性增强准零刚度隔振器和浮置板道床系统
CHENG ZHIBAO (author) / LI BEIBEI (author) / SHI ZHIFEI (author)
2024-09-20
Patent
Electronic Resource
Chinese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
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