2018/3/11 圆上活大学 Overview of Lectures 国上清大学 0.Overview 14/15 Performance(a,b) 1.Introduction 16.Aircraft certification 2.Overall configuration (a,b) 17 Aviation economics 3.Preliminary weight estimation 18.Svstem integration and Aircraft Design 4.Refined weight estimation confiquration management 5.Fuselage design (飞行器设计) 6.Aerodynamic design(a,b) 9.Thrust/Weight ratio and wing loading0.Military aircraft design- 10.Landing gear and Aircraft systems overview 21.Environmental issues 11.Power plant Wenbin Song 12.Stability and control 22.Design skills School of Aeronautics and Astronautics 13.Loads,materials and structures oorornenin ong Content 国上活美大坐 International Standard Atmosphere (ISA) 圆上清道大坐 Aerodynamic Design (2) An atmospheric model of how pressure,density,temperature,and Airfoil viscosity relate to altitudes (ISO 2533:1975) -Wing ·Basic law -Fuselage -Tail Ge etry Buoyancy Equation Aerodynamic Forces and Moments (2) ·Troposphere -Lift Estimation -Drag Estimation -Moment Estimation (not included Stratosphere (Temperature Constant,about 10-50km) CFD-based aerodynamic shape design (2) netry Param terization 2=e 卫-★ -CFD Sim lation % Reverse Design and Numerical Optimization Sea-level data 4-1SC五-23.150A-1225k1we-340294eh&-0665R-270527J-g.k 3 oerandenn ong 4 ISA Data Chart 国上洋大坐 Topics Covered 园上海发大坐 1.000 ·t Clean configuration -Effect of high lift devices on aero coefficients 0.80 ·Dag a70 -Drag breakdown-according to physical mechanisms form drag friction drag wave drag 0.500 Drag breakdown-component based 0500 ·Use of form factors Trim drag 0.400 ·Methods and software 0.3000 DATCOM,ESDU 02800 -Coding it yourselr 0.000 0 5000 10000 15000 30a0 Shanghal Jlao Tong Universty-Dr.Wenbin Song rslty-Dr.V(enbin Song 12018/3/11 1 © Shanghai Jiao Tong University – Dr. Wenbin Song School of Aeronautics and Astronautics Wenbin Song School of Aeronautics and Astronautics Shanghai Jiao Tong University swb@sjtu.edu.cn Aircraft Design （飞行器设计） © Shanghai Jiao Tong University – Dr. Wenbin Song School of Aeronautics and Astronautics Overview of Lectures 0. Overview 1. Introduction 2. Overall configuration (a, b) 3. Preliminary weight estimation 4. Refined weight estimation 5. Fuselage design 6. Aerodynamic design(a, b) 9. Thrust/Weight ratio and wing loading 10.Landing gear and Aircraft systems 11.Power plant 12.Stability and control 13.Loads, materials and structures 14/15 Performance(a, b) 16.Aircraft certification 17.Aviation economics 18.System integration and configuration management 19.Multidisciplinary design optimization 20.Military aircraft design – overview 21.Environmental issues 22.Design skills © Shanghai Jiao Tong University – Dr. Wenbin Song School of Aeronautics and Astronautics Content • Aerodynamic Design （2） – Airfoil – Wing – Fuselage – Tail Geometry • Aerodynamic Forces and Moments （2） – Lift Estimation – Drag Estimation – Moment Estimation (not included • CFD-based aerodynamic shape design （2） – Geometry Parameterization – CFD Simulation – Reverse Design and Numerical Optimization •3 © Shanghai Jiao Tong University – Dr. Wenbin Song School of Aeronautics and Astronautics International Standard Atmosphere (ISA) • An atmospheric model of how pressure, density, temperature, and viscosity relate to altitudes (ISO 2533:1975) • Basic law • Troposphere • Stratosphere (Temperature Constant, about 10-50km) • Sea-level data •4 g dz dp Buoyancy Equation   Gas Law p  RT L dz dT                   1 0 0 RL g T T                  RL g T T p p 0 0   0 0 z z RT g e        0 0 z z RT g e p p    T  T0 t0  15C T0  288.15C 3 0   1.225kg / m a  340.294m/s g0  9.80665 1 1 287.05278   R  J  kg  K © Shanghai Jiao Tong University – Dr. Wenbin Song School of Aeronautics and Astronautics ISA Data Chart 0.0000 0.1000 0.2000 0.3000 0.4000 0.5000 0.6000 0.7000 0.8000 0.9000 1.0000 0 5000 10000 15000 20000 25000 30000 T/T0 p/p0 density ratio © Shanghai Jiao Tong University – Dr. Wenbin Song School of Aeronautics and Astronautics Topics Covered • Lift – Clean configuration – Effect of high lift devices on aero coefficients • Drag – Drag breakdown – according to physical mechanisms • form drag + friction drag + wave drag – Drag breakdown – component based • Use of form factors – Trim drag • Methods and software – DATCOM, ESDU – Coding it yourself