带辅助安定面平流层飞艇的航向静稳定性分析

In order to enhance the directional static stability of the stratospheric airships, a new airship configuration with auxiliary stabilizers and without remarkably increasing the weight of the airships is proposed. To simulate the directional static stability and aerodynamic drag characteristics of an airship compared with an airship without auxiliary stabilizers under different side-slip and pitch angles, a numerical simulation model is established. Finally, the effects of the auxiliary stabilizer area on the directional static stability are analyzed. The results show that the airship configuration based on the auxiliary stabilizers exhibits a better directional static stability. Under the same conditions, the airship with auxiliary stabilizers can be stabilized faster with the increase of the side-slip angles; When the area ratio between the stabilizers and fins is greater than 0.05, at the side-slip angle of 30° the yaw moment coefficient increases from about -0.8 to positive.