For general applications in 3D, often need to perform 3 separate rotations to relate our inertial frame to our body frame Especially true for aircraft problems There are many ways to do this set of rotations -with the variations be based on the order of the rotations All would be acceptable

Ron began his career as an aircraft system designer in Douglas Aircraft Company’s Hydro-Mechanical system design group. He became Unit Chief of the braking system design group directly responsible for the design of the DC-9, DC-10, MD-80 anti-skid, auto-brake, brake temperature and tire pressure monitoring

由结构完整性计划看出,载荷与载荷谱的确定是实现计划的首要条件。 2.1载荷、载荷谱及其在结构设计中的作用 2.1.1静载荷是发动机结构静强度设计的基础

腐蚀是一种自发过程。 腐蚀是由于环境作用引起的材料的破坏和变质。 从这个定义可以看出，材料（或结构）是否会发生腐蚀破坏，既取决于材料本身的性质， 也与环境有关。 导致材料发生腐蚀的环境因素构成了腐蚀环境。腐蚀环境包括总体环境（大气环境）和 工作环境

7.1概述 功用:保证发动机正常工作的所需的“神经”系统组成:主要有滑油、起动、燃油与调节系统,以及保证它们正常运行的传动系统。有的机种还有喷水、冷却系统等。(为防内容重复,本章主要介绍滑油、传动系统) 7.2滑油系统

5.1燃烧室 (本节应注意与燃烧课程的协调,避免重复) 5.1.1概述 (1)功用:将燃的化学能转换成气体的热能并加热到涡轮前允许的温度。 (2)燃烧环境:

1.1基本类型 1.1.1活塞式+螺旋桨 汽油机等容循环(OTTO循环) 柴油机—等压循环(Disel循环) 做功特点: (1)进气量小 (2)各冲(过)程在同一汽缸内按序完成(个体作业”)→功率(生产率)受限

Manager, New Aircraft Development United Airlines I joined United Airlines in 1967 and am presently Manager of New Aircraft Development, a post I have held since 1987. Assignments at United have included Manager of Operational Engineering, Factory Representative at Douglas (our first DC-10 deliveries), Manager of Fuel and Performance Control, Manager of Flight Standards and

Spring 2003 Lagrange's equations Joseph-Louis lagrange 1736-1813 http://www-groups.dcs.st-and.ac.uk/-history/mathematicians/lagranGe.html Born in Italy. later lived in berlin and paris Originally studied to be a lawyer Interest in math from reading halleys 1693 work on

EROSPACE DYNAMiCS EXAMPLE: GWE ACCELERATIoN of THE TIP 0F认ERU0毛R人TM5Hc人AF LDk小 G For A650LUT # CCELER升T10 N UTH RES/∈ct T0wE工NERT1 AL FRAME (∈ TH IN THiS CASE)