design of control systems ppt
DESIGN OF FLUID SYSTEMS pptx
... 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
Tài liệu The Design Of Manufacturing Systems P1 pptx
... 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
Tài liệu The Design Of Manufacturing Systems P2 pptx
... 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. ã Use of features in conceptual assembly design systems that enable design at various levels of abstraction and in multiple functional viewpoints. ã 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
QUASILINEAR CONTROL: Performance Analysis and Design of Feedback Systems with Nonlinear Sensors and Actuators pot
... 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
Tài liệu The Design Of Manufacturing Systems P2 docx
... 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
Tài liệu Integration and Automation of Manufacturing Systems pptx
... Computer Aided/Automated Design - Design geometry, dimensions, etc. CAE - Analysis of the design done in the CAD system for stresses, flows, etc. (often described as part of CAD) CAM - Computer ... list of some of the more important directories follows with a brief description of each. Most users have their home directories under the ’/home’ directory. Most of the other directories are of ... Control of all the machine tools in the FMS. Both CNC and DNC functions can be incorporated into a single FMS. - Computer control of the materials handling system - Monitoring - collection of...
Ngày tải lên: 25/01/2014, 12:20
Tài liệu The Design Of Manufacturing Systems P1 docx
... 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
Design of hydraulic systems for lift truck
... 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