曝光台 注意防骗 网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
Translation
No translation
10
Low
0
No rotation Rotation
No rotation Rotation
Figure 30. Motion fidelity for Task 3.
Figure 27. Measured performance for Task 3.
No. of overshoots
30
Fidelity
Med.
Translation
20
1.5
% of time trans. mot. reported
100%
0%
Rms pedal rate, in/sec
1
0.5
0
No rotation Rotation No rotation Rotation
Figure 28. Control rate for Task 3.
Figure 31. Lateral translational motion perception for Task 3.
Extens.
100%No translation
% of time rot. mot. reported
Translation
Compensation
Consid.
No translation
Translation
Mod.
0%
Min.
No rotation Rotation
No rotation Rotation
Figure 29. Pilot compensation for Task 3. Figure 32. Rotational motion perception for Task 3.
In summary, the results of this task do not reveal many differences from those of Tasks 1 or 2. Lateral transla-tional motion was again the dominant variable. Its addition improved pilot-vehicle performance, although its effect on rated pilot compensation and fidelity was less reliable than it was in the other two tasks. The only statistically significant effect of rotation was a deleterious effect on control activity.
Combined Results
Table 2 summarizes the effects of the presence of lateral translational or yaw rotational motion on the six meas-urables for the three tasks. All of the improvements in the measures occur for the presence of lateral translational motion, except for one. In that case, a marginally significant effect was noted in pilot-vehicle stability for the addition of yaw rotation. Statistically significant degradations in the measures occurred only for the addition of yaw rotational motion. Interactions between lateral translational and yaw rotational motion occurred only in the lateral translational and yaw rotational motion perception reporting. However, in Tasks 1, 2, and 3, pilots reported (on average) rotational motion being present 87%, 90%, and 80% of the time, respectively, when only lateral translational motion was present.
The claim made as a result of these evaluations is that yaw rotational platform motion is not adding value to helicopter flight simulation. However, the claim that yaw rotational platform motion does not provide a cue is not made. During the course of these studies, a hypothesis was raised that the pilots simply were not sensing whatever cue the yaw rotational platform motion was providing. As previously stated, each task resulted in enough motion so that the physiological thresholds, as measured in passive situations, were exceeded. However, the possibility remained that, since the pilots were actively a part of the control loop rather than passive observers, those passive thresholds may have risen to the point that the yaw rotational motion platform cue was not being sensed.
直升机网 www.helicopter.cn
直升机翻译 www.aviation.cn
本文链接地址：Helicopter Flight Simulation Motion Platform Requirements(29)
|
