摘要
油箱是飞机生存力研究中的关键部件,水锤效应是油箱的主要破坏方式之一。综述了国内外在水锤效应研究方面的三种不同方法,发现试验方法简单直接,却易受试验条件限制;理论分析方法由于引入过多的假设,适用范围有限;数值模拟方法操作简单,参数可控,但其准确性受材料本构参数的影响。单一地使用一种方法不能解决飞机油箱的水锤效应问题。本文在总结前人研究水锤效应的基础上,指出只有结合使用三种方法才能真正解决水锤效应问题,从而设计高生存力的油箱。
Fuel tank is the key component in the study of aircraft survivability. Hydrodynamic ram effect is one of the main failure ways. A comprehensive introduction is taken on the three research methods of the Hydrody- namic ram effect. It is found that the test method is simple and direct, but limited under the test conditions; the theoretical analysis method is introduced too many hypothesis and limited its scope; the digital simulation meth- od is of simple operation and can control the parameters, but its accuracy is affected by the material constitutive parameters. Brief principle on hydrodynamic ram effect is summarized in this paper. In order to design the high viability tank, it is the only way to combine theoretical analysis with numerical simulation based on the unified test method.
出处
《航空工程进展》
2014年第1期1-6,24,共7页
Advances in Aeronautical Science and Engineering
基金
国家自然科学基金(61303157)
中国博士后科学基金(2135M541044)
关键词
水锤效应
充液油箱
有限元
数值模拟
生存力
hydrodynamic ram effect
fuel tank filled with fluid
finite element method
digital simulation
survivability
