Contra-rotating Z-drivc propeller (CRZDP,Patent) is a new advanco propulaion unit developed by China Ship Scientifid Research Center. It combines the excollent manocuvrability of conventional Z-drive propulsion unit w...Contra-rotating Z-drivc propeller (CRZDP,Patent) is a new advanco propulaion unit developed by China Ship Scientifid Research Center. It combines the excollent manocuvrability of conventional Z-drive propulsion unit with the high propulsiveeffieiency of contra-rotating propeller. The present paper describes the struetures features and excellent performance of the unit.Based on the results of practical operation,tbe performance and economy benefit of the automobilc-ferries with CRZDP are alsointroduced in the展开更多
为了解决全回转推进器螺旋桨的单向流固耦合问题,实现螺旋桨桨叶结构强度精确评估,文章基于计算流体力学和有限元法开展了螺旋桨桨叶的结构强度计算方法研究,重点探讨了桨叶表面随机分布压力从流体域到固体域的转换技术。在此基础上,文...为了解决全回转推进器螺旋桨的单向流固耦合问题,实现螺旋桨桨叶结构强度精确评估,文章基于计算流体力学和有限元法开展了螺旋桨桨叶的结构强度计算方法研究,重点探讨了桨叶表面随机分布压力从流体域到固体域的转换技术。在此基础上,文中提出了桨叶固液交界面上水动力载荷的转换方法,详细研究了插值加权系数和有限元网格尺寸对桨叶结构强度计算精度的影响规律,给出了适用于桨叶强度评估的插值加权系数和单元网格尺寸选取原则。最后,该文以5 000 k W级全回转推进器螺旋桨为例,开展了桨叶结构强度数值计算和安全评估,获得了桨叶的应力和变形分布规律,整体上建立了全回转推进器螺旋桨桨叶结构强度评估方法,可为大功率全回转推进器螺旋桨设计提供借鉴和参考。展开更多
文摘Contra-rotating Z-drivc propeller (CRZDP,Patent) is a new advanco propulaion unit developed by China Ship Scientifid Research Center. It combines the excollent manocuvrability of conventional Z-drive propulsion unit with the high propulsiveeffieiency of contra-rotating propeller. The present paper describes the struetures features and excellent performance of the unit.Based on the results of practical operation,tbe performance and economy benefit of the automobilc-ferries with CRZDP are alsointroduced in the
基金Supported by the Major State Basic Research Development Program of China(973 Program,No.2014CB046706)Jiangsu Key Laboratory of Green Ship Technology
文摘为了解决全回转推进器螺旋桨的单向流固耦合问题,实现螺旋桨桨叶结构强度精确评估,文章基于计算流体力学和有限元法开展了螺旋桨桨叶的结构强度计算方法研究,重点探讨了桨叶表面随机分布压力从流体域到固体域的转换技术。在此基础上,文中提出了桨叶固液交界面上水动力载荷的转换方法,详细研究了插值加权系数和有限元网格尺寸对桨叶结构强度计算精度的影响规律,给出了适用于桨叶强度评估的插值加权系数和单元网格尺寸选取原则。最后,该文以5 000 k W级全回转推进器螺旋桨为例,开展了桨叶结构强度数值计算和安全评估,获得了桨叶的应力和变形分布规律,整体上建立了全回转推进器螺旋桨桨叶结构强度评估方法,可为大功率全回转推进器螺旋桨设计提供借鉴和参考。