基于参数化建模的螺旋桨随边削边振动研究  

Analysis on vibration of propeller with unilateral edge trimming based on parametric modeling

作　　者：姚月兵 金鑫 李解 吴均云 李家盛 YAO Yuebing;JIN Xin;LI Jie;WU Junyun;LI Jiasheng(School of Naval Architecture and Ocean Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Shanghai Marine Equipment Research Institute,Shanghai 200031,China;Ship Data Technology and Support Software Hubei Engineering Research Center,Wuhan 430074,China;Key Laboratory of Ship and Ocean Hydrodynamics of Hubei Province,Huazhong University of Science and)

机构地区：[1]华中科技大学船舶与海洋工程学院,湖北武汉430074 [2]上海船舶设备研究所,上海200031 [3]船舶数据技术与支撑软件湖北省工程研究中心,湖北武汉430074 [4]船舶和海洋水动力湖北省重点实验室,湖北武汉430074

出　　处：《中国舰船研究》2022年第S01期19-27,共9页Chinese Journal of Ship Research

基　　金：国家自然科学基金资助项目(52001130,11922208,51839005);华中科技大学自主创新研究基金资助项目(2019kfyXJJS005);湖北省技术创新专项重大项目(2019AAA041)。

摘　　要：[目的]工程上常采用随边削边法解决因负荷过重所导致的船-机-桨不匹配的问题。针对工程中常使用的随边单边切割法,开展基于参数化建模的螺旋桨随边单边削边振动研究,探究随边削边对螺旋桨振动特性的影响。[方法]选取DTMB4381,4382及4383等型桨为研究算例,结合Matlab编程技术与ANSYS二次开发程序得到不同随边单边切割量对螺旋桨振动特性的影响规律,并分析对应影响规律产生的不同原因。[结果]对于无侧斜的4381桨,其固有频率随随边切割量的增大小幅增加,而模态振型变化不大;对于有侧斜4382及4383桨,随边切割量增加,其固有频率变化规律与无侧斜的4381桨基本相同。[结论]侧斜不会改变螺旋桨在不同随边单边切割量下的振动特性规律;随着随边切割量的增加,两种桨形削边后,固有频率变化率均会明显提升,且在高阶时增幅更为明显。对应的二次开发计算程序可在实际工程中帮助相关人员从振动特性的角度选取最优削边方案,为削边方案的设计和改良提供理论依据和指导。[Objective] In engineering, the edge trimming method is often used to solve the problem of shipmachine-propeller mismatch caused by excessive load. In order to explore the effects of edge trimming on the vibration characteristics of the propeller, this paper studies the vibration of a propeller with edge trimming based on parametric modeling. [Methods]DTMB4381, DTMB4382 and DTMB4383 propellers are selected as research examples, then Matlab programming technology and the ANSYS secondary development program are combined to obtain the influence laws of different unilateral edge trimming on the vibration characteristics of the propeller, and the different reasons behind the corresponding influence laws are analyzed.[Results]For the DTMB4381 propeller without skew, the natural frequency increases slightly with the increase of the edge trimming amount, but the mode shape does not change much. For the DTMB4382 and DTMB4383 propellers with skew, with the increase of the edge trimming amount, the change law of the natural frequency remains basically the same as that of the DTMB4381 propeller without skew. [Conclusions]Skew does not change the vibration characteristics of a propeller under different unilateral trimming amounts;with the increase of the trimming amount, the natural frequency change rate of the two types of propeller shapes after chamfering will be significantly improved, and the increase is more pronounced at higher levels.The corresponding secondary development program can help the relevant personnel to select the optimal trimming scheme from the perspective of vibration characteristics in practical engineering, providing a theoretical basis and guidance for the design and improvement of trimming schemes.

关 键 词：螺旋桨 随边单边削边 振动分析 ANSYS二次开发 

分 类 号：U664.33[交通运输工程—船舶及航道工程]