基于PatrarVnastran有限元软件,提出了一种对收缩段进行动应力分析的有效方法,并检验了某结冰风洞承受空气动力作用的能力。研究结果表明,这种方法是非常有效的,具有很好的精度。研究结果还表明该风洞收缩段设计合理,能够满足空气动力变化条件下的要求。
This paper proposes a method for analyzing dynamic stress of wind tunnel contraction sec tion with Patran/nastran software. This method is used to evaluate the capacity of one icing wind tunnel subjected to aerodynamic force. It is shown that this method is very effective for analyzing dynamic stress of icing wind tunnel with excellent accuracy. It is also shown that this wind tunnel contraction section is well designed and can effectively endure the changing aerodynamic force.