1.路政管理概述 2.路政管理机构和人员 3.公路路产、路权管理 4.公路超限运输管理 5.公路建筑控制区管理 6.公路“三乱”的治理 7.高速公路清障工作

6.1飞机总体参数的多学科设计优化 6.1.1多学科设计优化的基本概念 飞机总体设计是一个复杂的系统工程,覆盖了多个学科的内容 ,例如空气动力学、结构学,推进理论,控制论等。 多学科设计优化是一种解决大型复杂工程系统设计过程中耦合 与权衡问题,同时对整个工程进行综合优化设计的有效方法

一、定额产生与发展 二、定额在现代管理中的地位 三、我国工程建设定额在工程价格形成中的作用

高效生物反应器的特点： (1) 传质和传热性能好； (2) 结构密封、防杂菌污染； (3) 设备简单、维修方便；(4) 生产能力高 (5) 能耗低； (6)检测控制系统完善； (7) 易放大； (8)生产安全

Fall 2001 16.313-1 Introduction Root locus methods have Advantages k Good indicator if transient response k Explicity shows location of all closed-loop poles Trade-offs in the design are fairly clear Disadvantages k Requires a transfer function model(poles and zeros) k Difficult to infer all performance metrics k Hard to determine response to steady-state(sinusoids

16.31 Feedback Control State-Space Systems What are state-space models? Why should we use them? and how do we develop a state-space mode( &ased in classical control design How are they related to the transfer functions What are the basic properties of a state-space model, and how do we analyze these?

In going from the state space model i(t)=A.(t)+ Bu(t y(t)= Ca(t)+ Du(t) to the transfer function G(s)=C(sI -A)-B+D need to form the inverse of the matrix(sI- A)-a symbolic inverse- not easy at all For simple cases, we can use the following

State-Space Systems What are the basic properties of a state-space model, and how do we analyze these? e Time Domain Interpretations System Modes Copyright 2001 by Jonathan How

State-Space Systems e Ful-state feedback Control How do we change the poles of the state-space system? Or, even if we can change the pole locations Where do we change the pole locations to? How well does this approach work?

Interpretations With noise in the system, the model is of the form =AC+ Bu+ Buw, y= Ca +U And the estimator is of the form =Ai+ Bu+L(y-9,y=Ci e Analysis: in this case: C-I=[AT+ Bu+Buw-[Ac+ Bu+L(y-gI A(-)-L(CI-Ca)+B