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针对气动交联耦合所带来的飞行器控制系统设计复杂、控制性能无法采用现有的控制系统评价方法等设计问题,提出了一种新的气动耦合模型解耦方法。该方法引入了气动耦合评价指标———气动耦合度,建立了气动弱耦合与气动强耦合的耦合度区间,提出了耦合忽略与等效转换两种解耦方法;实现了飞行器各通道气动耦合条件下模型的完全或部分解耦,利于采用工程中常用的SISO控制系统设计与评价方法。仿真结果表明了面向控制的气动耦合模型解耦方法的有效性。
Aiming at the complex design of the aircraft control system brought by the pneumatic cross-coupling and the design problem of the existing control system evaluation methods, the control performance can not be used. A new aerodynamic coupling model decoupling method is proposed. This method introduced the aerodynamic coupling evaluation index --- aerodynamic coupling degree, and established the coupling range of aerodynamic weak coupling and aerodynamic strong coupling. Two decoupling methods of coupling neglect and equivalent conversion were proposed. Aerodynamic coupling The complete or partial decoupling of the model under the condition will help to adopt the design and evaluation method of SISO control system commonly used in engineering. Simulation results show that the control-oriented aerodynamic coupling model decoupling method is effective.