針對飛行模擬機運動載荷系統中平臺質心處的線加速度的算法進行了剖析，并就液壓伺服作動筒的伸縮長度與飛機特定力和飛機轉動率之間的關系進行了分析。提出了運動方程建模的依據，探討了模擬機六自由度運動系統在軟硬件上的合成原理，為飛行模擬機液壓伺服控制在運動系統過載保護性能方面的改善及研究打下了基礎。
關 鍵 詞 線性通道; 角度通道; 質心變換; 旋轉率

Abstract The present essay dissects the algorithm of the linear acceleration at the centre of gravity of the platform of the motion loading system, and also analyses the relations of hydraulic servo actuator’s travel distance, the aircraft’s specific force and the aircraft’s rotational rate. The essay also suggests the basis of motion equation modeling, and discusses the simulator’s six-degree-of-freedom motion system’s combination principles by the means of the hardware and software, and all these make the foundation of the research of flight simulator hydraulic servo control in improving performance of overload protection.
Key words linear channel; angular channel; centroid transition; rotational rate