平流层飞艇驻空飞行阶段的航速和空速量级可比拟,考虑风的影响时, 基于地速的动力学模型必须显式补充风引起的附加惯性力,其运动方程将变得很复杂.作者首先依据风场环境下地速、风速和空速之间的关系,推导了基于空速的动力学模型.该模型具有形式简单、与飞艇动力学联系更加密切且无需计算风引起的附加力的优点.
其次, 建立了基于上述模型的飞艇六自由度动力学仿真模型,并针对标称运动条件下的系统开环输入进行仿真并简要分析了仿真结果.

Since the stratospheric airship's ground speed has a comparable magnitude order with the airspeed in the mission flight stage, considering the influence of wind, the dynamic model based on ground speed must explicitly supplement wind-induced inertial forces, which become very complicated.  Based on the relationship of round speed,wind speed and airspeed in wind field, a new dynamic model based on airspeed is derived firstly. The new model has a simpler form and a closer relationship with truly dynamics, and without calculating wind-induced forces. In order to prove the effectiveness of the new model, a 6-DOF dynamics simulation system of the stratospheric airship is derived, then the open-loop response of the 6-DOF dynamics in the nominal motion condition are simulated and simply discussed.