论文部分内容阅读
本文分析了迴转对称高空科学气球球膜的应力状态,指出按实际情况给定有关纬向应力σ_t的约束条件后就可解得正确的球形.σ_t的选择原则有三:下半球σ_t尽可能为零;上半球的σ_t自腰至顶逐渐增加;在球顶处则维持经向应力σ≈σ_t.按此原则设计的附加强带或不附加强带的气球,其最大应力和应力总潜能均较纬向应力恒为零的自然型气球有明显的改善,将用于大型气球的设计中.
In this paper, we analyze the stress state of symmetrical high-altitude scientific balloon spherical film and point out that the correct spherical shape can be solved by the given conditions of the latitudinal stress σ_t according to the actual situation.The principle of σ_t selection is as follows: Zero; the upper hemisphere σ_t gradually increased from the waist to the top; at the dome at the time to maintain the longitudinal stress σ ≈ σ_t.According to this principle with or without strong band attached to the balloon, the maximum total stress and stress potential The natural type of balloon with a constant zero of zonal stress has a significant improvement and will be used in the design of large balloons.