论文部分内容阅读
文章建立了飞艇系留系统多体力学仿真模型,将绳索处理为质点-弹簧-阻尼系统,在有风条件下针对某型飞艇产品进行了静力学和动力学分析。结果表明,张力从地面沿系留绳逐渐增大,在与飞艇连接处达到峰值;在一定范围内,随着飞艇攻角的增加,飞艇的驻空高度增加,偏移量减小,但绳索内部张力也有显著的提高;绳索质量增大会影响飞艇系留系统性能;随着风速的增加,飞艇的水平偏移量增大,驻空高度降低,绳索张力增大;在变风场条件下,绳索内张力波动范围不大。
In this paper, a multi-body mechanical simulation model of airship mooring system is established. The rope is treated as a mass-spring-damping system. Static and dynamic analysis is performed on a certain type of airship under windy conditions. The results show that the tension increases from the ground along the tether line and reaches the peak at the junction with the airship. Within a certain range, the airship’s altitude increases and the offset decreases with the increase of the attack angle of the airship. However, The internal tension also significantly improved; rope quality will affect the performance of the airship mooring system; with the increase of wind speed, the airship horizontal offset increases, reducing the height of the space, the rope tension increases; in the variable wind field conditions, Tension fluctuations within the rope is not large.