固支圆板耐撞性能分析的近似解析方法  

An approximate analytic method to analyze the crashworthiness of the fixed circular plate

作　　者：尤小健[1] 杨飞[1] 

机构地区：[1]武汉第二船舶设计研究所,湖北武汉430064

出　　处：《舰船科学技术》2012年第9期65-67,75,共4页Ship Science and Technology

摘　　要：提出了一种评估板结构耐撞性能的近似解析方法。从理论上分析了固支圆板在刚性圆球撞头作用下的力学过程,采用对数曲面模拟圆板变形的局部挠曲面,忽略板弯曲效应的影响,导出了能量吸收和板变形之间的近似解析关系式。实例计算结果与有限元计算结果的比较表明,该简化解析方法能够对板结构的耐撞性做出合理的预报。An approximate analytical method is proposed to evaluate the crashworthiness of the plate structure. Ignoring the effect of the bending moment, the mechanical process of a fixed circular plate impacted by a rigid spherical indenter is analyzed theoretically. The logarithmic surface is used to simulate the local deformation of the plate. The relationship between the energy absorption and the deformation is derived. Examples indicate that this approximate analytical method can predict the crashworthiness of the plate structure reasonably.

关 键 词：板结构 耐撞性 简化分析方法 

分 类 号：U674.704[交通运输工程—船舶及航道工程]