基于统计能量法的船舶板架结构简化建模方法研究  

Research of Simplified Modeling Method for Ship Grillage Structure Based on Statistical Energy Analysis

作　　者：王淅铖 武国勋 王鼎渠[1] WANG Xicheng;WU Guoxun;WANG Dingqu(Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China;Institute of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China)

机构地区：[1]清华大学核能与新能源技术研究院,北京100084 [2]哈尔滨工程大学船舶工程学院,哈尔滨150001

出　　处：《船舶工程》2019年第1期40-47,共8页Ship Engineering

基　　金：清华大学自主科研计划资助(20161080065)

摘　　要：统计能量法是解决复杂结构高频动力学问题的主要方法之一,限于其分析特性,过于细致化的建模会引发其计算量大、计算精度低等问题。针对典型的船体板架结构,提出基于统计能量法的船体板架结构简化建模方法,并结合数值计算加以验证。根据实际需求,提出简化建模的等效原则,给出多平板的简化建模方法;通过研究给出周期加筋板的简化建模方法;提出一种双层底结构的简化建模方法,并进行误差分析。Statistical energy analysis is one of the main methods to solve the high frequency dynamics problem of complex structure. For its analysis limitation, excessively detailed modeling will lead to great amount of calculation and low accuracy. According to the typical ship grillage structure, the simplified modeling method for ship grillage structure based on statistical energy analysis is proposed, and it is verified by numerical computation. According to the actual demand, the equivalent principle of simplified modeling and multi-plate’s simplified method are introduced. The periodic stiffened plate’s simplified modeling method is deduced by the study. A simplified modeling method of the double bottom structure is proposed, and the error is analyzed.

关 键 词：统计能量法 板架结构 简化建模 双层底 周期加筋板 

分 类 号：U661.4[交通运输工程—船舶及航道工程]