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Dynamic characteristics of coupling model of valve-controlled cylinder parallel accumulator

机译：阀控制气缸平行蓄能器耦合模型的动态特性

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To solve the electro-hydraulic control problems caused by the accumulator's passive involvement, the internal principle of the valve-controlled luffing cylinder was explored based on one ship crane; comparison models with and without the accumulator were established, and experiments were performed to verify the dynamic characteristics. By comparing simulations with experimental data, it was found that in the outstretch stage of the cylinder, the accumulator releases energy, accelerates the extension of the cylinder, and increases the response velocity. However, the accumulator also reduced the precision of location control. Therefore, to effectively solve the problem of fluctuation rate in the outstretch stage, experiments were conducted to adjust the valve-core opening according to the energy-release characteristics of the accumulator. In the retracting stage of the cylinder, the accumulator absorbed oil and inhibited the pressure fluctuation of the cylinder effectively. Finally, the feasibility of the compensation solution was verified through the experiments.
机译：为解决蓄电池被动参与引起的电动液压控制问题，基于一艘船舶起重机探索了阀控制摇杆缸的内部原理;建立了具有和不具有累加器的比较模型，进行实验以验证动态特性。通过将模拟与实验数据进行比较，发现在汽缸的伸出阶段，蓄能器释放能量，加速汽缸的延伸，并增加响应速度。然而，累加器也降低了位置控制的精度。因此，为了有效地解决伸出阶段中波动率的问题，进行实验以根据蓄能器的能量释放特性调节阀芯开口。在汽缸的缩回阶段，蓄能器吸收油并有效地抑制了汽缸的压力波动。最后，通过实验验证了补偿溶液的可行性。

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