Simulation study on vibration characteristics of excitation valve

2017 International Conference on Mechanical, System and Control Engineering (ICMSC) Pub Date : 2017-05-01 DOI:10.1109/ICMSC.2017.7959448

Wu Wanrong, Wu Weiwei, Huang Qian, Wang Songlai

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引用次数: 1

Abstract

The traditional excitation system usually adopts the eletro-hydraulic excitation valve, of which the structure is complicated and requires externally being connected to the servo motor and control system, but cannot meet the requirements of high frequency and high flow. So a cartridge vibration valve is proposed. The valve has a simple structure, which is mainly composed of four two-way cartridge valves, a two-position four-way hydraulic control directional valve and two variable throttle orifices. Its frequency modulation mode is simple, and it can achieve high-frequency commutation and large-flow output. To study the effect of the parameters on the vibration characteristics of the vibration valve, the mathematical model and AMESim simulation model were established. The result shows that: the excitation frequency increases with the increasing of the working pressure, the area ratio and the spring stiffness of the two-way cartridge valve. Adjusting the orifice diameter and the working pressure can regulate the excitation frequency.

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激励阀振动特性仿真研究

传统的励磁系统通常采用电液励磁阀，其结构复杂，需要外部连接伺服电机和控制系统，但不能满足高频、大流量的要求。为此，提出了一种插装式振动阀。该阀结构简单，主要由四个双向插装阀、一个二位四通液压控制换向阀和两个可变节流孔组成。其调频方式简单，可实现高频换向和大流量输出。为研究各参数对振动阀振动特性的影响，建立了振动阀的数学模型和AMESim仿真模型。结果表明:激励频率随工作压力、面积比和二通插装阀弹簧刚度的增大而增大;调节节流孔直径和工作压力可以调节励磁频率。

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2017 International Conference on Mechanical, System and Control Engineering (ICMSC)

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