| 大侧斜螺旋桨强度校核探讨 |
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| 引用本文： | 黄毅,许辉,姜治芳.大侧斜螺旋桨强度校核探讨[J].中国舰船研究,2010,5(5):44-48. |
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| 作者姓名： | 黄毅 许辉 姜治芳 |
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| 作者单位： | 1. 大连船舶重工集团有限责任公司军事代表室,辽宁,大连,116005
2. 中国舰船研究设计中心,湖北,武汉,430064 |
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| 摘 要： | 针对大侧斜螺旋桨复杂的几何外形和载荷分布,为准确解决其强度校核问题,介绍了两种螺旋桨强度校核方法,传统的悬臂梁法和有限元法。前者视桨叶为变截面的悬臂梁,按正车最大航速时的静态负荷来进行校核;采用有限元法在全速正车和紧急倒车状态时计算叶片的应力应变,重点介绍了紧急倒车过程中作用在桨叶上最大水动力载荷的确定方法。最后通过算例分析,比较两种方法校核同一螺旋桨强度的结果,指出有限元法更适合用于大侧斜螺旋桨的强度校核。
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| 关 键 词： | 大侧斜螺旋桨 强度校核 悬臂梁法 有限元法 |
Strength Analysis of Highly-Skewed Propeller |
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| Huang Yi,Xu Hui,Jiang Zhi-fang.Strength Analysis of Highly-Skewed Propeller[J].Chinese Journal of Ship Research,2010,5(5):44-48. |
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| Authors: | Huang Yi Xu Hui Jiang Zhi-fang |
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| Institution: | 1 Military Representative Office in Dalian Shipbuilding Industry Co.Ltd.,Dalian 116005,China; 2 China Ship Development and Design Center,Wuhan 430064,China ) |
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| Abstract: | Considering complicated geometrical shape and load distribution of highly-skewed propeller,traditional cantilever beam method and Finite Element Method（FEM） are introduced to analyze the strength of propeller.The former method regards the propeller blades as beam with variable sections and is used to check the structural strength with static loading at the highest advanced speed.The latter-method computes the stress and tension of blade at full speed forward and crash astern.Emphasis is placed on identifying effective approach to determine the highest hydrodynamic load on the blade when in crash astern operation.Both methods are utilized to compute the structural strength of highly-skewed propeller,the results show that FEM is more applicable than the traditional cantilever beam method for such structural strength analysis. |
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| Keywords: | highly-skewed propeller strength analysis cantilever beam method Finite Element Method |
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