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Magnetorheological damping self-adaptive semi-active control quasi-zero stiffness floating slab ballast bed system
The invention discloses a quasi-zero stiffness floating slab ballast bed system with magneto-rheological damping adaptive semi-active control. A vibration isolation system mainly comprises a quasi-zero stiffness floating slab structure, a magneto-rheological damper and a semi-active control system. On the basis of a traditional steel spring floating slab structure, horizontal spiral spring negative stiffness mechanisms are introduced to the left side and the right side of a floating slab ballast bed, and the quasi-zero stiffness characteristic of the system is achieved through parallel connection of positive stiffness and negative stiffness. Besides, a magnetorheological damper is added in the steel spring vibration isolator to replace a viscous damping material, and a semi-active control system is adopted to control damping force output by the magnetorheological damper in real time, so that self-adaptive semi-active control of magnetorheological damping is realized. By constructing a quasi-zero-stiffness floating slab vibration isolation system and magneto-rheological damping semi-active control, the vibration isolation starting frequency of a traditional steel spring floating track bed system can be further reduced, low-frequency vibration self-adaptive control is achieved, and a traditional steel spring floating track bed is further improved.
本发明公开了一种磁流变阻尼自适应半主动控制的准零刚度浮置板道床系统，该隔振系统主要包括准零刚度浮置板结构、磁流变阻尼器以及半主动控制系统。在传统钢弹簧浮置板结构基础上，在浮置板道床左右两侧引入水平螺旋弹簧负刚度机构，通过正负刚度并联实现系统准零刚度特性。另外，在钢弹簧隔振器内部加入磁流变阻尼器以代替粘滞阻尼材料，并采用了半主动控制系统对磁流变阻尼器输出阻尼力进行实时控制，从而实现磁流变阻尼的自适应半主动控制。本发明通过构建准零刚度浮置板隔振系统与磁流变阻尼半主动控制，可进一步降低传统钢弹簧浮置道床系统隔振起始频率，并实现低频振动自适应控制，是对传统钢弹簧浮置道床的进一步提升。
Magnetorheological damping self-adaptive semi-active control quasi-zero stiffness floating slab ballast bed system
The invention discloses a quasi-zero stiffness floating slab ballast bed system with magneto-rheological damping adaptive semi-active control. A vibration isolation system mainly comprises a quasi-zero stiffness floating slab structure, a magneto-rheological damper and a semi-active control system. On the basis of a traditional steel spring floating slab structure, horizontal spiral spring negative stiffness mechanisms are introduced to the left side and the right side of a floating slab ballast bed, and the quasi-zero stiffness characteristic of the system is achieved through parallel connection of positive stiffness and negative stiffness. Besides, a magnetorheological damper is added in the steel spring vibration isolator to replace a viscous damping material, and a semi-active control system is adopted to control damping force output by the magnetorheological damper in real time, so that self-adaptive semi-active control of magnetorheological damping is realized. By constructing a quasi-zero-stiffness floating slab vibration isolation system and magneto-rheological damping semi-active control, the vibration isolation starting frequency of a traditional steel spring floating track bed system can be further reduced, low-frequency vibration self-adaptive control is achieved, and a traditional steel spring floating track bed is further improved.
本发明公开了一种磁流变阻尼自适应半主动控制的准零刚度浮置板道床系统，该隔振系统主要包括准零刚度浮置板结构、磁流变阻尼器以及半主动控制系统。在传统钢弹簧浮置板结构基础上，在浮置板道床左右两侧引入水平螺旋弹簧负刚度机构，通过正负刚度并联实现系统准零刚度特性。另外，在钢弹簧隔振器内部加入磁流变阻尼器以代替粘滞阻尼材料，并采用了半主动控制系统对磁流变阻尼器输出阻尼力进行实时控制，从而实现磁流变阻尼的自适应半主动控制。本发明通过构建准零刚度浮置板隔振系统与磁流变阻尼半主动控制，可进一步降低传统钢弹簧浮置道床系统隔振起始频率，并实现低频振动自适应控制，是对传统钢弹簧浮置道床的进一步提升。
Magnetorheological damping self-adaptive semi-active control quasi-zero stiffness floating slab ballast bed system
一种磁流变阻尼自适应半主动控制的准零刚度浮置板道床系统
LIU YANQI (author) / WANG YOUHUI (author) / ZHOU AIDONG (author) / SONG CHUNFANG (author) / FENG QINGSONG (author) / JIANG WEI (author) / ZHANG HOUGUI (author)
2022-07-22
Patent
Electronic Resource
Chinese
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