座舱湿度的模糊控制

旅客机在巡航高度上,机外空气的相对湿度很低,如果不进行加湿,会使舱内相对湿度与机外大气湿度持平,远低于人体耐受范围。长时间处于低湿度环境会使人感到不舒适并带来其他一些生理问题,所以,在旅客机的飞行过程中,对座舱的加湿是必要的。但是空气湿度控制系统是一个复杂的非线性控制问题,采用传统模型比较难建立控制方程。模糊控制正好可以适用于这样的复杂系统。以某客机的一次飞行包线为例,建立了基于模糊控制原理的湿度控制模型,并进行了仿真。仿真结果表明,采用模糊控制的湿度控制系统能够很好地满足舱内湿度的控制要求。

Fuzzy control of cabin humidity

The relative humidity outside the passenger aircraft at cruise altitude is low.Without humidification,cabin relative humidity will be equal to the humidity outside,which is far below than human tolerance.Therefore,it is necessary to humidify the cabin to avoid potential physiological problems that passengers may suffer during long-time stay at the low-humidity environment.Since air humidity control system is a complex and non-linear problem,it is hard to set up accurate control equations with common control...