水下航行器大侧斜对转桨设计方法改进

Improvement to a Design Method for Highly Skewed Contra-Rotating Propellers of Underwater Vehicles

研究基于升力线和升力面理论的对转桨设计方法,对升力面设计的核心部分——螺距和拱弧面的迭代计算方法进行了改进,建立了一套较为高效、准确的大侧斜对转桨设计程序.设计算例及其数值验证结果表明:改进的设计计算方法不仅提高了计算效率,而且能够有效保证设计结果的光顺性;设计方法具有较好的精度,可应用于大侧斜对转桨的设计.

The design method based on lifting-line and lifting-surface theories for highly skewed contra-rotaring propellers was studied. An improved approach for designing the pitch distribution and camber surface was devised and incorporated into the existing design procedure to enhance its efficiency and accuracy. The design example and its numerical validation results indicate that the improved procedure is capable of enhancing computational efficiency and producing smooth blade geometries. The present method provides a useful tool for the design of highly skewed contra-rotating propellers.