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基于Patran/nastran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。
Based on Patran / nastran finite element software, an effective method for dynamic stress analysis of shrinkage section was proposed and the ability of an icing wind tunnel to withstand aerodynamic forces was tested. The results show that this method is very effective and has good accuracy. The results also show that the wind tunnel contraction section design is reasonable and able to meet the requirements of aerodynamic changes.