design of control systems

Ngày tải lên: 01/01/2014, 18:43

... Linearization of LPNI Systems 20 3 Analysis of Reference Tracking in LPNI Systems 66 4 Analysis of Disturbance Rejection in LPNI Systems 114 5 Design of Reference Tracking Controllers for LPNI Systems ... Linearization of LPNI Systems 20 2.1 Stochastic Linearization of Open Loop Systems 20 2.1.1 Stochastic Linearization of Isolated Nonlinearities 20 2.1.2 Stochastic Linearization of Direct Paths of LPNI Systems ... arguments lead to a class of systems that we refer to as Linear Plant/Nonlinear Instrumentation (LPNI). The controllers in feedback systems are often designed to be linear. The main design techniques...

Ngày tải lên: 23/03/2014, 15:20

Ngày tải lên: 08/09/2013, 20:50

... that the designer can easily interact with the system. Ranking of Redesign Alternatives Another area requiring research attention in the context of generation of redesign solutions (design advisor) ... integrated design- manufacturing systems is the incompre- hension of the language of Computer-Aided Manufacturing (CAM) systems by the Computer-Aided Design (CAD) systems. The CAD systems were initially ... ranking of the generated redesign alternatives [Allada, 1997]. One of the important tasks of an automated manufacturability evaluator is to check for any design violations and provide redesign alternatives...

Ngày tải lên: 19/01/2014, 18:20

... at the core of the contents of this volume. This set of volumes consists of seven distinctly titled and well-integrated volumes on the broadly significant subject of computer-aided design, engineering, ... constraints. 1. Limit on the number of expansions of some processes: (1.13) where NEXP(i) is the maximum allowable number of expansions of process i and IЈ is the set of indices for the process whose ... time periods of the planning horizon ( t ϭ 1, NT ). Variables E it Units of expansion of process i at the beginning of period t . P jlt Units of chemical...

Ngày tải lên: 19/01/2014, 18:20

... integrated design- manufacturing systems is the incompre- hension of the language of Computer-Aided Manufacturing (CAM) systems by the Computer-Aided Design (CAD) systems. The CAD systems were initially ... features. • Use of features in conceptual assembly design systems that enable design at various levels of abstraction and in multiple functional viewpoints. • Mechanism to capture the design intent ... minimization of process design from product design, Comput. Aid. Des., 28(5), 321, 1996. Cunningham, J. and Dixon, J., Designing with features: the origin of features, Proceedings of ASME Computers...

Ngày tải lên: 25/01/2014, 13:20

... at the core of the contents of this volume. This set of volumes consists of seven distinctly titled and well-integrated volumes on the broadly significant subject of computer-aided design, engineering, ... time periods of the planning horizon ( t ϭ 1, NT ). Variables E it Units of expansion of process i at the beginning of period t . P jlt Units of chemical ... constraints. 1. Limit on the number of expansions of some processes: (1.13) where NEXP(i) is the maximum allowable number of expansions of process i and IЈ is the set of indices for the process whose...

Ngày tải lên: 25/01/2014, 13:20

Ngày tải lên: 14/03/2014, 19:33

... Spring operated Electrical control Electrical control, proportional Pump, constant volume, one direction of flow Design of Hydraulic Systems for Lift Trucks i CONTENTS ... when designing or redesigning a system. In any hydraulic system, we have to look at not only rigidity of the fluid but also rigidity of the whole system. Bulk Modulus of the fluid is one of the ... restrictor (orifice) variable Flow control, pressure compensated, two-way Flow control, pressure compensated, three-way Design of Hydraulic Systems for Lift Trucks 33 Chapter 3...

Ngày tải lên: 23/03/2014, 11:37

... virtue of its method of operation and the valve may be held off its seat by an accumulation of quite soft deposits. This type of trap is usu- ally supplied pre-set to a specific amount of subcooling. ... 21 TEMPERATURE CONTROL VALVES 22 Manual Controls 22 Self-Acting Controls 22 Pilot Operated Controls 23 Pneumatic Controls 24 Proportional Control Bands 24 STEAM TRAPS AND THE REMOVAL OF CONDENSATE ... Traps First, a definition of a steam trap may be in order to fully understand the function of this piece of equipment. A steam trap is an automatic valve designed to stop the flow of steam so that heat...

Ngày tải lên: 24/03/2014, 10:20

Ngày tải lên: 27/06/2014, 06:20

Ngày tải lên: 07/11/2013, 09:15

... in the theory concerning the design of control systems with multiple saturations. A systematic methodology is introduced to design control systems with multiple saturations ... its control signals. For multivariable systems, a major problem that arises (because of saturations) is the fact that control saturations alter the direction of the control ... problem for MIMO systems. In practice, the saturations are ignored in the first stage of the control design process, and then the final controller is designed using ad-hoc...

Ngày tải lên: 18/02/2014, 10:20

... Startup and Shutdown 1.6 Control System Design Philosophy 1.7 Procedure for Overall Control System Design 1.8 Column Design Philosophy and Control System Design 1.9 Existing Columns-Typical ... 16 Liquid Level Control 16.1 Introduction 16.2 Level Control of Simple Vessels 16.3 Level Control of Overhead Condenser Receiver Via Top- 16.4 Level Control of Overhead Condenser ... pressure control via manipulation of inert gas and vent valves Reduction of signal flow diagram of Figure 17.7 Signal flow diagram for column pressure control via manipulation of inert...

Ngày tải lên: 01/04/2014, 11:24

Ngày tải lên: 08/04/2014, 12:26

Ngày tải lên: 17/10/2013, 19:15

Ngày tải lên: 17/12/2013, 14:15

... Evidence of authorization of all adjustments to payables ledger Payables ledger control account 1. Evidence of review of reconciliation of purchase ledger listing 2. Evidence of authorization of ... Planning of payments, to ensure cash available and discounts taken 9. Cheque books / stationery kept secure Examples of Control Test…cont Documents Test For Credit Note 1. Evidence of matching ... goods are checked in inventory records updated 7. Person made requisition informed of goods arriving Objectives of Control • Purchase only made when there is a genuine need • Value for money is...

Ngày tải lên: 22/12/2013, 15:15

... Specification and design of embedded hardware-software systems, IEEE Design & Test of Computers, pp. 53-67, Spring 1995. [14] DeBardelaben, J. and Madisetti, V., Hardware/software codesign for signal ... Hardware-software cosyn thesis for digital systems, IEEE Design & Test of Computers, Sept. 1993. [10] Kalavade, A. and Lee, E., A hardware-software codesign methodology for DSP applications, IEEE Design ... top-down design process of creating a virtual prototype for hardware and software cospecification, codesign, cosimulation, and coverification of the embedded system. The proposed top-down design...

Ngày tải lên: 25/12/2013, 06:16

Ngày tải lên: 01/01/2014, 17:47