摘要
对于舰船或大型船舶轴系,由于其转速高、轴系超长等特点,进行轴系回旋振动计算时,采用传统的传递矩阵法求解往往容易出现数值不稳定和漏根现象,严重影响轴系固有特性计算的准确性,与轴系的实际运转情况不符。采用基于有限元法的计算模型,能较真实地反映物理模型,且计算精度高。分析考虑多种因素对回旋振动的影响,利用可视化编程软件VB与ANSYS参数化设计语言混合编程,实现回旋振动软件开发并通过实例验证了算法及软件的正确性。软件界面友好、使用方便、计算效率高,能满足舰船轴系回旋振动计算的需要。
In terms with the warship or large vessel shaft, for its high rotation speed and super-long length, the whirling vibration of shafting is calculated by transfer matrix method often results in numerical instability and leakage phenomenon, which is not consistent with the actual situation, and would greatly affect the calculation accuracy of shafting inherent characteristics. By means of the finite element method calculation model, the parameter is more close to the actual situation, and high calculation accuracy is obtained. Considering the influence of various factors on the whirl vibration analysis, using hybrid programming of VB and ANSYS parametric design language, whirl vibration calculation software development has been achieved, so as the validation of the arithmetic and software. Owing to its friendly interface, convenience of use, and calculation efficiency, the software will certainly meet the needs of ship shafting vibration calculation.
出处
《船舶工程》
北大核心
2016年第11期52-57,共6页
Ship Engineering
基金
国家自然科学基金(51479154)
关键词
轴系
回旋振动
有限元法
影响因素
VB
软件开发
shaft
whirl vibration
finite element method
influence factor
VB
software programming
