工程流固耦合

课程编码：1801010801I0P1001Y 英文名称：Fluid-Structure Interactions in Engineering 课时：50 学分：2.50 课程属性：学科核心课 主讲教师：陈伟民

As a typical and leading-edge inter-discipline, fluid-structure interaction issues cover multiple areas including fluid, solid body, coupling and controlling. Aiming at the fluid-structure coupling problems in practice, such as aero-space engineering, ocean and civil industries, this course introduces the fundamental theory, governing equations and solutions, along with applications of fluid-structure coupling systems. It mainly includes three parts. 1) Fundamental theory. The fundamental theory covers essential dimensional analysis, structural dynamics, fluid dynamics and solution techniques of coupling system. 2) The fluid-solid coupling problems in air. It will focus on aeroelasticity of flight vehicle, e.g. static divergence and flutter of lift surface, in terms of modelling, solution and its characteristics; 3) The fluid-solid coupling problems in water, e.g. vortex-induced vibration (VIV), stability of fluid-conveying pipeline (buckling and flutter under various boundary conditions; some challenging issues including active control, status monitoring and safety assessment of these coupling systems.

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第一章 Introduction 2.0学时 陈伟民
第1节 1.1 Categories and Main Characters of Structural-Fluid Interaction Problems
第2节 1.2 Some Important Concepts and Analysis of FSI
第二章 Dimensional Analysis and Fundamental Theory 14.0学时 陈伟民
第1节 2.1 Dimensional Analysis
第2节 1) Introduction of dimensional analysis; 2) Non-dimensional variables, such as reduced velocity, dimensionless amplitude, mass ratio, damping factors.
第3节 2.2 Structural Dynamics.
第4节 1) Uniform string dynamics and wave problem; 2)Added mass; 3) Fluid coupling
第5节 2.3 Fluid Dynamics
第6节 1) Fundamentals of potential flow; 2)Uniform tensional bar or rod dynamics; 3) Uniform beam bending dynamics
第7节 2.4 Numerical Solution Techniques.
第8节 Some popular methods, e.g. direct integration method and mode superposition method;
第9节 Comparisons, in terms of application conditions and stability behaviors.
第三章 Fluid-Solid Coupling Problems in Air 16.0学时 陈伟民
第1节 3.1 Static Aeroelasticity
第2节 Equilibrium equations
第3节 Torsional divergence
第4节 Air-load distribution and its re-distribution
第5节 3.2 Aeroelastic Flutter
第6节 Stability characteristics
第7节 Aeroelastic analysis of a typical section
第8节 Classical flutter analysis
第9节 1) One-DOF flutter; 2)Two-DOF flutter
第10节 3.3 Solution Approaches
第11节 Engineering solutions for flutter
第12节 1) The k method; 2) The p-k method
第13节 Unsteady aerodynamics
第14节 1) Theodorsen's unsteady thin-airfoil theory; 2) Finite-state unsteady thin-airfoil theory
第15节 Flutter prediction and boundary characteristics
第16节 3.4 Active Control of Coupling System.
第17节 State-space equations; Control law design
第四章 Fluid-Solid Coupling Problems in Water 15.0学时 陈伟民
第1节 4.1 Vortex-Induced Vibration (VIV)
第2节 Phenomenon and main factor
第3节 Analysis of VIV problems
第4节 VIV response of ocean risers/pipelines
第5节 4.2 Vibration/Stability of Flow-Conveying Pipe
第6节 Simply-supported pipeline
第7节 Cantilever pipeline
第8节 Effects of boundary conditions on stability
第9节 4.3 Parametric Excitation
第10节 The modelling (Mathieu equation); Its solution and applications
第11节 4.4 Some leading-edge Problems of Fluid-Structure Interactions
第五章 Review and Discussions 1.0学时 陈伟民
第1节 Summary, Review and Discussions
第六章 Final Examination 2.0学时 陈伟民
第1节 Final Examination

陈伟民，女，博士，中国科学院力学研究所研究员/博士生导师。于北京航空航天大学飞机设计专业获学士、博士学位，北京大学力学系博士后，于中科院力学所流固耦合系统力学重点实验室工作，2012年美国德州大学奥斯汀分校做高级访问学者。主要从事海洋、航空和土木工程中的结构动力学、流固耦合力学研究，研究领域涉及深水油气平台水弹性和飞行器气动弹性问题、复杂结构振动和非线性动响应、超长柔性立管涡激振动和主动控制、缺陷材料中弹性波传播机理和震源机制反演以及非稳态信号时频分解和重构等。先后在Ocean Engineering海洋工程类 和Materials Science and Engineering A结构材料类期刊等发表学术论文百余篇、并担任多个国际期刊审稿人；主持和参加了国家自然科学基金、国家高技术研究发展计划（863计划重点项目）以及中科院创新项目、先导A/B项目等科研课题。