摘要
高速三体船是一种在商业和军事都具有广泛应用前景的特殊船型,结构振动性能是其研发的重要指标之一。相对于单体船此种船型的振动特点比较复杂,目前没有简化的计算公式对其振动性能做出可靠评价,因而研究高速三体船型的总体振动计算方法显得极其重要。首先采用有限元法建立三体船的三维有限元模型,采用不同于刘易斯法的源汇分布法计算附连水质量,然后对三体船总振动固有频率和振动响应进行计算分析,最后结合相应的振动标准,对其振动程度做出准确的评价,从而总结出一套计算三体船振动的可靠方法。
High-speed trimaran is a specific ship type which can address the requirements for both commercial and mil- itary utility. The vibration characteristic is one of the vital aspects in its development. In comparison to conventional Mo- nohull ship, its vibration characteristic is very complex and there is no the simplified calculation formula for giving a reliable assessment for the vibration characteristic,so the hull vibration calculation method research of the high-speed trimaran is of predominant significance. The additional water mass of trimaran was calculated in the wet mode by using source-sink distribution method otherwise Lewis, three-dimensional finite element method was used in calculation and analysis of the global vibration natural frequency and vibration response, then accurate evaluation was obtained by comparing with the re- lated vibration standard, finally a reliable technioue to calculate the vibration of the trimaran was summarized.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2013年第1期64-68,共5页
Journal of Wuhan University of Technology
基金
国家自然科学基金(50809019)
国防基础科研项目(A2420061100)
关键词
三体船
船体振动
固有频率
振动响应
振动衡准
trimaram hull vibratiom natural frequency~ vibration responsel vibration standard
