CAJ | 학술논문

研究了基于改进升力线模型和改进粒子群优化算法的船用螺旋桨最佳径向环量分布的求解方法。在升力线理论中计入了螺旋桨在轴向、周向和径向诱导速度的影响，通过迭代计算满足自由涡线的“涡线方向与当地流场方向保持一致”的运动学边界条件，获得变形的自由涡线，使改进的升力线模型适用于包括重载工况在内的多种螺旋桨工作状态下最佳环量分布的求解。改进了一种基于变异策略的粒子群优化算法，以此人工智能优化方法代替传统的变分法，寻优得到船用螺旋桨最佳径向环量分布。针对不同的求解条件，给出了相应的计算结果及讨论。计算结果表明，该最佳环量分布的求解方法是可行、有效和正确的。
연구료기우개진승력선모형화개진입자군우화산법적선용라선장최가경향배량분포적구해방법。재승력선이론중계입료라선장재축향、주향화경향유도속도적영향，통과질대계산만족자유와선적“와선방향여당지류장방향보지일치”적운동학변계조건，획득변형적자유와선，사개진적승력선모형괄용우포괄중재공황재내적다충라선장공작상태하최가배량분포적구해。개진료일충기우변이책략적입자군우화산법，이차인공지능우화방법대체전통적변분법，심우득도선용라선장최가경향배량분포。침대불동적구해조건，급출료상응적계산결과급토론。계산결과표명，해최가배량분포적구해방법시가행、유효화정학적。
The determination of the optimum radial circulation distribution of the propeller is investigated based on the improved lifting-line model and the improved particle swarm optimization algorithm. The axi-al, radial and tangential induced velocities are considered, and the kinematics boundary condition that the direction of vortex line is consistent with the local flow field direction is fulfilled by iteration calculation. Therefore, the improved lifting-line model could be applied on many conditions including the heavy load-ed condition to determine the circulation distribution. Meanwhile, an improved particle swarm optimization algorithm is proposed. A mutation strategy for premature convergence particles is added in the algorithm. And the traditional variational calculus method is replaced by this optimization method to calculate the propeller radial circulation distribution. Several circulation distribution optimizations and the analysis of calculations are carried out. Optimization results demonstrate the effectiveness and robustness of the method.