摘要：飞行模拟器逼真度的关键在于洗出算法的优劣,经典洗出算法的参数调整方便、反馈速度和执行速度迅速而被广泛应用,但在结构设计上仍然存在一定缺陷,导致洗出算法相位延迟误差和虚假暗示过大,造成飞行模拟器动感逼真度的下降。根据前庭感知系统对经典洗出算法的结构进行重新设计,使用补偿理论减小算法的相位延迟和虚假暗示。在MATLAB/SIMULINK中对一组实际飞行数据进行仿真验证,并给出优化后洗出算法的最佳参数值范围。仿真结果表明,优化后的洗出算法在最佳参数值范围内能够提升运动平台的利用率和减小虚假暗示,提高飞行模拟器的动感逼真度。

摘要：对飞行模拟器的经典洗出算法和人体前庭系统进行分析,发现经典洗出算法的平移通道和倾斜协调通道存在相互耦合的现象,角速度限幅和倾斜协调通道滤波器对模拟的持续加速度产生重要影响,导致飞行模拟器运动洗出过程中出现相位延迟。对经典洗出算法结构进行重新设计,解决互耦造成的相位延迟以及角速度限幅器带来的模拟持续加速度不够完整的影响。仿真结果表明,改进算法洗出的倾斜协调角速度和角度严格限制在人体阈值内,感觉加速度的相位延迟大大减少,并且洗出的位移量比经典算法范围更大。证明改进算法能够克服经典洗出算法中出现的虚假暗示现象,使飞行模拟器的洗出效果和动感逼真度得到提升。

摘要：Motion simulator usually appears the phenomenon of false cues and the workspace is limited in the process of washout. The proposed washout algorithm combines fuzzy logic control with the vestibular system to design the tilt coordination fuzzy adaptive filter, in order to minimize the vestibular sensory error below the human perception threshold. Owing to tilt coordination angular velocity limiter, the loss of low-pass acceleration must be compensated by the acceleration transform model. The translational channel decreases the possibility of the workspace beyond limitation and expands the scope of motion platform simulating input acceleration by using third-order filter. The simulation results show that the proposed algorithm can effectively overcome the phase retardation of classical washout algorithm, and then prevent the produce of false cues, decrease the displacement of motion platform simultaneously; in addition, white Gaussian noise simulates large variations in acceleration. The proposed washout algorithm can have maximal extreme value of acceleration and accurate simulating performance in general. It also proves that the proposed washout algorithm has a strong adaptability and reliability, which can effectively improve the dynamic fidelity for motion simulator.