Pneumatic cabin pressure control system (PCPCS), with its exceptional electromagnetic compatibility, is expected to become the major equipment on a high-performance airplane again in the future. Although the PCPCS has been mature for a long time, the broad popularization of the digital cabin pressure control system (DCPCS) has left the PCPCS in the cold for decades. This makes the PCPCS unable to meet the severe cabin pressure regulation requirements of high-speed aircraft today. For this purpose, a more precise PCPCS modeling method is proposed. Through this method, the relation between different parts in the PCPCS can be accurately characterized. Moreover, the impact of the ambient environment on the PCPCS is taken into consideration. This method can be used to accurately analyze the PCPCS under maneuvering flight. And it also assists in the verification of the system improvements of dynamic performance in the future. Simulation results show that the aircraft acceleration disturbs the PCPCS slightly, and the cabin air inflow fluctuation has a significant impact on the cabin air pressure.

中文翻译：

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考虑环境影响的气动座舱压力控制系统更精确的建模方法

气动客舱压力控制系统（PCPCS）以其卓越的电磁兼容性，有望在未来再次成为高性能飞机的主要装备。虽然PCPCS已经成熟了很长时间，但数字化客舱压力控制系统（DCPCS）的广泛普及却让PCPCS冷了几十年。这使得 PCPCS 无法满足当今高速飞机严格的客舱压力调节要求。为此，提出了一种更精确的PCPCS建模方法。通过这种方法，可以准确地表征 PCPCS 中不同部分之间的关​​系。此外，还考虑了周围环境对 PCPCS 的影响。该方法可用于精确分析机动飞行下的PCPCS。并且还有助于验证未来动态性能的系统改进。仿真结果表明，飞机加速度对PCPCS的扰动较小，客舱进气量波动对客舱气压有显着影响。