【摘要】 带有副气囊的平流层飞艇的成形发放问题是平流层飞艇研究中比较重要的课题,成形发放过程中飞艇的稳定位置和飞艇成形上升阶段的仰角变化问题,一般通过在实验中获得数据,为此采用理论与仿真计算相结合的方法对以上问题进行了分析。仿真结果表明飞艇发放后在短时间内达到它的稳定仰角,且仰角很大,以及随着氦气比例的增加,为保持飞艇内压力,逐渐排除副气囊内空气使得氦气比例加大,飞艇的稳定位置仰角会越来越小。结论与各国的实际发放情况相一致,对平流层飞艇的成形发放起到分析验证的作用,具有一定指导意义。更多还原

【Abstract】 The problem of formated release of stratospheric airship with ballonet is an important subject on the research of the Stratospheric airship platform. In order to realize the stable position during airship release process and changes of pitch angle during formated launch process,this article used the method of combining theory and practical application to do the analysis and calculation. The calculation result show that with the increase of helium proportion,the airship stable pitch angle decreases. The simulation results by ADAMS show that the airship reaches its stable pitch angle in a short time after released,and the angle is large. The conclusions are in accordance with the airship practice results,and have certain instructional significance to the formated release process of the stratospheric airship.更多还原