运载火箭贮箱流固耦合分析方法综述

主要介绍了流固耦合的一些基本概念和分类。针对运载火箭贮箱流固耦合问题,介绍了几种分析方法:包括广泛用于运载火箭贮箱流固耦合分析应用的解析法、线性有限元法和有限元-边界元混合法,用于类似问题分析的模态综合法,以及当前常见且可以用于运载火箭贮箱流固耦合分析的FEM-CFD耦合法、半数值半解析法、非线性瞬态响应法,总结了各种方法的特点和适用性,并提出了运载火箭贮箱流固耦合分析需要进一步研究的一些方向。

A review on the analysis methods of fluid-structure coupling for launch vehicle fuel tank

This paper introduces some basic conceptions and catalogue about fluid-structure coupling, reviews several analysis methods of fluid-structure coupling for launch vehicle fuel tank, including four methods, analytical method, linear FEM, FEM-BEM coupled method, component mode synthesis （CMS） method, which are usually employed for fluid-structure coupling of lauch vehicle fuel tank in, and the other methods, FEM-CFD coupled method, numerical and analytical hybrid method and nonlinear transient analysis method, which are prospective to extend the study on fluid-structure i coupling for launch vehicle fuel tank, and summaries the characteristics and applicability for the above methods, respectively. Additional, it argues some prospects for fluid-structure coupling of launch vehicle fuel tank.