Nonlinear Dynamics of an Electrohydraulic Flapper Nozzle Valve
Nonlinear Dynamics of an Electrohydraulic Flapper Nozzle Valve
复制标题
电液挡板喷嘴阀的非线性动力学
DOI：
10.1115/1.2896139
复制
发表时间：
1990
影响因子：
1.7
通讯作者：
F. Brown
中科院分区：
文献类型：
--
作者：
C. Liaw;F. Brown
采用能量法建立了电液挡板喷嘴阀的非线性模型。非线性被发现在电阻，顺应性，和惯性，后者产生依赖于状态的耦合项。该模型被应用到一个阀设计的脉宽调制（PWM）。大多数模型参数来自先验设计参数，但也有一些是从一系列实验中发现的，这些实验也用于确认模型。该阀及其模型对高达500 Hz的PWM信号的响应令人满意。
A nonlinear model of an electrohydraulic flapper-nozzle valve is developed, using an energy-based approach. Nonlinearities are found in the resistances, compliances, and the inertances; the latter produce state-dependent coupling terms. The model is applied to a valve designed for pulse-width modulation (PWM). Most model parameters are derived from a priori design parameters, but some were found from a series of experiments which also served to confirm the model. The valve and its model responded satisfactorily to PWM signals up to 500 Hz.