【摘要】 电液伺服阀广泛应用于机床及其它设备.这种复杂的机电控制集机、电、液、磁于一体，属于重要的随动跟踪控制元件，伺服控制除了有良好的静态性能外，其动力学特性决定了伺服系统工作质量.键合图理论是建立电液伺服阀的模型的有效方法，能很好处理多能域系统模型的耦合，系统的非线性问题和多输入—多输出问题.更多还原

【Abstract】 Electro-hydraulic servo valve is widely used in machine tools and other equipment.This kind of complex electromechanical control integrates mechanical, electric, hydraulic and magnetic, which is an important servo tracking control element.In addition to its good static performance, its dynamic characteristics determine the working quality of the servo system.Bond graph theory is an effective method to build the model of electro-hydraulic servo valve, which can deal with the coupling of multi-energy domain system model, nonlinear problem and multi-input-multiple output problem well.更多还原