基于SiPESC平台的机翼流固耦合分析  

Fluid-structure coupling analysis of airfoil based on SiPESC platform

作　　者：陈立涛 陈飙松 陈玉震 刘鹏亮 CHEN Litao;CHEN Biaosong;CHEN Yuzhen;LIU Pengliang(Faculty of Vehicle Engineering and Mechanics,Dalian University of Technology,Dalian 116000,China;Shandong Guoshun Construction Group Co.,Ltd,Jinan 250000,China)

机构地区：[1]大连理工大学运载工程与力学学部,辽宁大连116000 [2]山东国舜建设集团有限公司,山东济南250000

出　　处：《地震工程与工程振动》2019年第6期62-67,共6页Earthquake Engineering and Engineering Dynamics

基　　金：国家重点研发计划项目(2016YFB0200702);国家自然科学基金项目(11761131005);111引智计划(B14013)~~

摘　　要：基于开放式有限元系统SiPESC.FEMS,构建了机翼流固耦合分析的程序框架。程序框架通过研发流固耦合界面数据交换模块来调用结构和流体分析功能.在流固耦合分析中采用高阶面元法对流体计算以获得飞行器机翼上各点处的压力系数。耦合界面交互采用径向基函数插值算法进行流固两相的载荷和位移的双向插值。进一步通过调用结构分析模块计算结构响应更新结构构型,实现机翼流固耦合整体流程分析。计算过程中各分析模块之间的数据传递均是基于大规模工程数据库SiPESC.ENGDBS来实现的。通过算例测试验证了在SiPESC平台上进行流固耦合分析的可行性。Based on the open-style finite element system Sil^ESC. FEMS, the software framework which is able toperform fluid-structure coupling analysis of wings is built. The software framework has designed the fluid-structurecoupling interface data exchange module to invoke the structure and fluid analysis functions. The method of fluidcomputation in fluid-structure coupling analysis is higher order panel method which can compute pressure coeffi­cients of aircraft,s surface. The algorithm of radial basis functions approximations is adopted to conduct bidirection­al interpolation of loads and displacements between fluid and structure. By using the strnctural analysis module tocalculate the structural response and update the structural configuration , the overall flow of fluid-structure coupling analysis of wings is realized. The data transfer between Sil^ESC solid finite element computation module and process of fluid computation is implemented by large-scale engineerng database SiPESC. ENGDBS. Feasibility of fluid- structure coupling analysis on Sil^ESC platform is verfied by some numercal examples.

关 键 词：流固耦合分析 SiPESC平台 高阶面元法 径向基函数 数据传递 

分 类 号：V211.47[航空宇航科学与技术—航空宇航推进理论与工程]