Gordon mckinzie 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

一、航空航天技术 1 材料 2 力学 3 制造

Aircraft Lateral Dynamics Using a procedure similar to the longitudinal case, we can develop the equa tions of motion for the lateral dynamics

Aircraft Dynamics First note that it is possible to develop a very good approximation of a key motion of an aircraft(called the Phugoid mode) using a very simple balance between the kinetic and potential energies Consider an aircraft in steady, level fight with speed Uo and height ho The motion is perturbed slightly so that

UPTO NoW HAVE CONJSI DERED PROBLEMS RELEVANT To THE RIGID BO0Y OYNAMICS THAT ARE IMPORTANT To AEROSPACE VEHICLES USED A BODy FRAME THAT ROTATES WITH THE VEHICLE ANOTHER TMPORTANT CLASS oF PRoBLEMS FoR Bo DIES SUCH AS GyRoscofes ROToR WITH HIGH SPIN RATE ESSENTIALY MASSLESS FRAME

◼ 成本的概念 ◼ 短期成本曲线 ◼ 短期产量曲线和短期成本曲线 ◼ 长期总成本 ◼ 长期平均成本与长期边际成本

◼ 基数效用论与边际效用分析法 ◼ 序数效用论与无差异曲线分析法 ◼ 收入效应与替代效应

本章要讨论的问题: 一、什么是西方经济学 二、现代西方经济学的由来和演变 三、西方经济学企图解决的两个问题

高速切削(HSM或HSC)是二十世纪九十年代迅速走向实际应用的先进加工技术,通常 指高主轴转速和高进给速度下的立铣,国际上在航空航天制造业、模具加工业、汽车零件加 工、以及精密零件加工等得到广泛的应用。高速铣削可用于铝合金、铜等易切削金属和淬火 钢、钛合金、高温合金等难加工材料,以及碳纤维塑料等非金属材料

《工程中的概率方法》Section5Article6