Study on Dynamic Simulation and Vibration Suppression of Hydraulic Hoist and Arc Gate Coupling
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摘要: 针对液压启闭机-弧形闸门，为研究其振动传递并提出有效抑振措施。本文通过建立其三维实体模型，并建立其动力学方程，理论分析液压油的刚度阻尼特性，在Simpack中建立液压启闭机-弧形闸门耦合动力学仿真模型，并以液压系统为振动源，通过设置基座隔断阻尼器和闸门隔断阻尼器并进行参数优化来抑制振动传递，结果表明：基座隔断阻尼器和闸门隔断阻尼器能有效抑制振动的传递，并得到两阻尼器刚度与阻尼的优势区间，基座隔断阻尼器刚度为1 × 104 ~ 1 × 105 N/mm，阻尼为100 ~ 2 000 Ns/mm；闸门隔断阻尼器刚度为1 × 104 ~ 5 × 105 N/mm，阻尼为100 ~ 2 000 Ns/mm。Abstract: In order to study the vibration transmission of hydraulic host-arc gate, the effective vibration suppression measures are put forward. In this paper, through the establishment of the three-dimensional entity model, the dynamic equation of hydraulic host-arc gate is established, and the stiffness damping characteristics of the hydraulic oil is theoretically analyzed. Taking the hydraulic system as the vibration source, the hydraulic hoist-coupling dynamics simulation model of radial gate is established in Simpack, and parameters of the base partition damper and gate partition damper are optimized to suppress the system vibration. The results showed that: The base partition damper and gate partition damper can effectively suppress vibration transmission, and the dominant range of stiffness and damping of the two dampers is obtained, where the base partition damper stiffness is 1 × 104-1 × 105 N/mm, and the damping is 100-2 000 Ns/mm; the rigidity of the gate partition damper is 1 × 104-5×105 N/mm, and the damping is 100-2 000 Ns/mm.
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Key words:
- hydraulic hoist /
- arc gate /
- dynamics simulation /
- parameters optimization /
- vibration suppression
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图 1 液压启闭机-弧形闸门三维实体模型
Figure 1. Three-dimensional solid model of the hydraulic hoist radial gate
图 2 液压启闭机-弧形闸门的动力学仿真模型
Figure 2. Dynamic simulation model of the hydraulic hoist radial gate
图 3 现场液压系统压力测定图
Figure 3. Pressure measurement diagram of the on-site hydraulic system
图 4 关闭闸门有杆腔油压时域变化图
Figure 4. Time-domain variation of oil pressure in the rod chamber during gate closure
图 5 液压启闭机固定基座竖直方向位移响应
Figure 5. The vertical displacement response of the hydraulic hoist fixed base
图 6 弧形闸门质心角位移响应
Figure 6. The angular displacement response of the radial gate centroid
图 7 固定基座竖直方向动态响应幅值随刚度参数变化图
Figure 7. Variation in dynamic response amplitude in the vertical direction of the fixed base with the stiffness parameter
图 8 弧形闸门质心动力响应幅值随刚度参数变化
Figure 8. Variation in dynamic response amplitude of the radial gate centroid with the stiffness parameter
图 9 固定基座竖直方向动态响应幅值随阻尼参数变化图
Figure 9. Variation in dynamic response amplitude in the vertical direction of the fixed base with the damping parameter
图 10 弧形闸门质心动力响应幅值随阻尼参数变化
Figure 10. Variation in dynamic response amplitude of the radial gate centroid with the damping parameter
图 11 无阻尼与临界状态固定基座竖直方向位移响应
Figure 11. The vertical displacement response of the fixed base in the undamped and critical states
图 12 无阻尼与临界状态弧形闸门质心角位移响应
Figure 12. The angular displacement response of the radial gate centroid in undamped and critical states
表 1 工况1 ~ 7各阻尼器参数及各部件稳定时间
Table 1. Damper parameters and stability time of each component for operating conditions 1-7
工况 基座隔断阻尼器 闸门隔断阻尼器 基座稳态
时间/s闸门稳态
时间/s刚度/
104(N·mm–1)阻尼/
(Ns·mm–1)刚度/
105(N·mm–1)阻尼/
(Ns·mm–1)1 无阻尼 5 5 2 液压缸阻尼 19.0 0.1 200 200 3 液压缸阻尼 + 基座
隔断阻尼器 + 闸
门隔断阻尼器1.0 10 0.1 10 160 190 4 1.0 10 1.0 10 100 160 5 5.0 10 2.0 10 150 190 6 10.0 10 5.0 10 190 200 7 50.0 10 10.0 10 500 500 
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表 2 工况8 ~ 13各阻尼器参数及各部件稳定时间
Table 2. Damper parameters and stability time of each component for operating conditions 8-13
工
况基座隔断阻尼器 闸门隔断阻尼器 基座稳态时间/s 闸门稳态时间/s 刚度/104 (N·mm–1) 阻尼/(Ns·mm–1) 刚度/105(N·mm–1) 阻尼/(Ns·mm–1) 8 液压缸阻尼 +
基座隔断阻尼器 +
闸门隔断阻尼器1.0 0.1 1.0 0.1 300 430 9 1.0 1 1.0 1 450 500 10 1.0 10 1.0 10 100 160 11 1.0 100 1.0 100 20 20 12 1.0 1000 1.0 1000 2 2 13 1.0 2000 1.0 2000 1 1
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