船舶推进轴系纵向振动共振转换器的优化设计
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摘要
[目的]在推力轴承上集成共振转换器(RC)可以改变轴系纵向振动的传递路径,衰减传递到基座的响应使轴系的固有频率避开螺旋桨叶频及其倍叶频激励力,从而实现减振、调频的目的。[方方法]为此,建立推进轴系纵向振动的力学模型,基于传递矩阵法计算桨轴系统的振动响应,以力传递率为指标,分析RC的主要参数对推进轴系隔振效果的影响,分别采用最大值最小化方法和曲线面积最小的参数修正方法,对RC的主要参数进行优化设计。[结果]研究结果表明:加装RC后,轴系的隔振效果得到了明显的改善,采用曲线面积最小修正的优化设计方法可使RC的减振调频效果更佳。[结论]通过对RC结构参数的合理设计能使减振系统获得优良的隔振效果。
[Objectives] The transmission path of the longitudinal vibration of propeller shafting can be changed and the base response attenuated via a Resonance Changer(RC) integrated in the thrust bearing,enabling the natural frequency of the shafting to be avoided by the propeller's blade frequency and multiplier frequency excitation force. In this way, the purposes of vibration reduction and frequency adjustment can be achieved. [Methods]In this paper,the mechanical model of longitudinal vibration of propeller shafting is established and the vibration model of the propeller shaft system is calculated on the basis of the transfer matrix method. The influence of the main parameters of the RC on the vibration isolation effect of propeller shafting is analyzed by taking the force transmission rate as the index. The methods of the minimization of maximum value and parameter correction of the curve area are used to optimize the main parameters of the RC. [Results] The results show that the vibration isolation effect of propeller shafting is significantly improved when the RC is installed and the vibration reduction effect of the RC can be improved by using the design method of the parameter correction of the curve area.[Conclusions] The rational design of the RCs parameters can produce a vibration isolating system with excellent vibration isolation effects.
[Objectives] The transmission path of the longitudinal vibration of propeller shafting can be changed and the base response attenuated via a Resonance Changer(RC) integrated in the thrust bearing,enabling the natural frequency of the shafting to be avoided by the propeller's blade frequency and multiplier frequency excitation force. In this way, the purposes of vibration reduction and frequency adjustment can be achieved. [Methods]In this paper,the mechanical model of longitudinal vibration of propeller shafting is established and the vibration model of the propeller shaft system is calculated on the basis of the transfer matrix method. The influence of the main parameters of the RC on the vibration isolation effect of propeller shafting is analyzed by taking the force transmission rate as the index. The methods of the minimization of maximum value and parameter correction of the curve area are used to optimize the main parameters of the RC. [Results] The results show that the vibration isolation effect of propeller shafting is significantly improved when the RC is installed and the vibration reduction effect of the RC can be improved by using the design method of the parameter correction of the curve area.[Conclusions] The rational design of the RCs parameters can produce a vibration isolating system with excellent vibration isolation effects.
引文
[1]Goodwin A J H.The design of a resonance changer to overcome excessive axial vibration of propeller shafting[J].Transactions of the Institute of Marine Engineers,1960,72:37-63.1
[2]Dylejko P G,Kessissoglou N J,Yan T,et al.Optimization of a resonance changer to minimize the vibration transmission in marine vessels[J].Journal of Sound and Vibration,2007,300(1/2):101-116.
[3]Li Z M,He L,Cui H G,et al.Study of the influence of the resonance changer on the longitudinal vibration of marine propulsion shafting system[C]//International Conference on Vibroengineering.Nanjing,China:JVE International Ltd.,2015:65-70.
[4]李良伟,赵耀,陆坡,等.减小船舶轴系纵向振动的动力减振器参数优化[J].中国造船,2010,51(2):139-148.Li L W,Zhao Y,Lu P,et al.Optimization of dynamic absorber parameters for reducing axial vibration of ship shafting[J].Shipbuilding of China,2010,51(2):139-148(in Chinese).
[5]王珺,蒋炎坤,王钊轶,等.船舶轴系纵向振动共振转换器的设计与优化[J].计算机辅助工程,2015,24(6):52-57.Wang J,Jiang Y K,Wang Z Y,et al.Design and optimization of resonance changer for longitudinal vibration of ship shafting[J].Computer Aided Engineering,2015,24(6):52-57(in Chinese).
[6]李良伟,赵耀.船舶轴系共振转换器的非线性振动特性研究[J].中国造船,2011,52(4):74-82.Li L W,Zhao Y.Research on longitudinal nonlinear vibration characteristic of marine shafting resonance changer[J].Shipbuilding of China,2011,52(4):74-82(in Chinese).
[7]储炜,赵耀,张赣波.共振转换器的动力反共振隔振理论与应用[J].船舶力学,2016,20(1/2):222-230.Chu W,Zhao Y,Zhang G B.Dynamic anti-resonance vibration isolation theory of resonance changer and application[J].Journal of Ship Mechanics,2016,20(1/2):222-230(in Chinese).
[8]Zhang G B,Zhao Y,Li T Y,et al.Propeller excitation of longitudinal vibration characteristics of marine propulsion shafting system[J].Shock and Vibration,2014,3(1):413592.
[9]侯祥林,李和玉,刘杰.最大值最小化问题的优化算法与多自由度动力减振器参数计算[J].振动与冲击,2008,27(1):100-103.Hou X L,Li H Y,Liu J.Optimal algorithm for minimization of maximum value problems and application of dynamic absorb or with multi-DOF[J].Journal of Vibration and Shock,2008,27(1):100-103(in Chinese).
[10]王伟,赵庆海,张海燕.动力减振器参数优化分析[J].振动与冲击,2006,25(5):180-182.Wang W,Zhao Q H,Zhang H Y.Analysis of optimal parameters of dynamic reducer[J].Journal of Vibration and Shock,2006,25(5):180-182(in Chinese).113
[2]Dylejko P G,Kessissoglou N J,Yan T,et al.Optimization of a resonance changer to minimize the vibration transmission in marine vessels[J].Journal of Sound and Vibration,2007,300(1/2):101-116.
[3]Li Z M,He L,Cui H G,et al.Study of the influence of the resonance changer on the longitudinal vibration of marine propulsion shafting system[C]//International Conference on Vibroengineering.Nanjing,China:JVE International Ltd.,2015:65-70.
[4]李良伟,赵耀,陆坡,等.减小船舶轴系纵向振动的动力减振器参数优化[J].中国造船,2010,51(2):139-148.Li L W,Zhao Y,Lu P,et al.Optimization of dynamic absorber parameters for reducing axial vibration of ship shafting[J].Shipbuilding of China,2010,51(2):139-148(in Chinese).
[5]王珺,蒋炎坤,王钊轶,等.船舶轴系纵向振动共振转换器的设计与优化[J].计算机辅助工程,2015,24(6):52-57.Wang J,Jiang Y K,Wang Z Y,et al.Design and optimization of resonance changer for longitudinal vibration of ship shafting[J].Computer Aided Engineering,2015,24(6):52-57(in Chinese).
[6]李良伟,赵耀.船舶轴系共振转换器的非线性振动特性研究[J].中国造船,2011,52(4):74-82.Li L W,Zhao Y.Research on longitudinal nonlinear vibration characteristic of marine shafting resonance changer[J].Shipbuilding of China,2011,52(4):74-82(in Chinese).
[7]储炜,赵耀,张赣波.共振转换器的动力反共振隔振理论与应用[J].船舶力学,2016,20(1/2):222-230.Chu W,Zhao Y,Zhang G B.Dynamic anti-resonance vibration isolation theory of resonance changer and application[J].Journal of Ship Mechanics,2016,20(1/2):222-230(in Chinese).
[8]Zhang G B,Zhao Y,Li T Y,et al.Propeller excitation of longitudinal vibration characteristics of marine propulsion shafting system[J].Shock and Vibration,2014,3(1):413592.
[9]侯祥林,李和玉,刘杰.最大值最小化问题的优化算法与多自由度动力减振器参数计算[J].振动与冲击,2008,27(1):100-103.Hou X L,Li H Y,Liu J.Optimal algorithm for minimization of maximum value problems and application of dynamic absorb or with multi-DOF[J].Journal of Vibration and Shock,2008,27(1):100-103(in Chinese).
[10]王伟,赵庆海,张海燕.动力减振器参数优化分析[J].振动与冲击,2006,25(5):180-182.Wang W,Zhao Q H,Zhang H Y.Analysis of optimal parameters of dynamic reducer[J].Journal of Vibration and Shock,2006,25(5):180-182(in Chinese).113