design optimization of mechatronic systems

... support design This discussion will be followed by a consideration of systems, components, and subsystems The basic nature of thermal systems will be outlined, and examples of different types of systems ... modeling of systems is a particularly important aspect of design, though it is often neglected Modeling is presented with a wide range of physical examples and a discussion of the types of approximations ... application of these ideas to the optimization of thermal systems is reiterated with examples of actual, practical systems The material presented in this textbook is the outcome of many years of teaching...

Ngày tải lên: 27/06/2014, 17:20

... support design This discussion will be followed by a consideration of systems, components, and subsystems The basic nature of thermal systems will be outlined, and examples of different types of systems ... modeling of systems is a particularly important aspect of design, though it is often neglected Modeling is presented with a wide range of physical examples and a discussion of the types of approximations ... application of these ideas to the optimization of thermal systems is reiterated with examples of actual, practical systems The material presented in this textbook is the outcome of many years of teaching...

Ngày tải lên: 27/06/2014, 17:20

... creative design of thermal systems and for the evaluation of the designs obtained The development of a workable, or acceptable, design, one which satisfies the requirements and constraints of the ... modeling of systems is a particularly important aspect of design, though it is often neglected Modeling is presented with a wide range of physical examples and a discussion of the types of approximations ... capstone design course, often alternated with a design course on mechanical systems Invariably, optimization is an important element in such courses because of the crucial need to optimize systems...

Ngày tải lên: 06/08/2014, 15:20

... support design This discussion will be followed by a consideration of systems, components, and subsystems The basic nature of thermal systems will be outlined, and examples of different types of systems ... given company is closely linked with the design and optimization of new processes and systems and optimization of existing ones Consequently, the subject of design, which had always been important, ... However, many of the basic concepts presented here are also applicable to other types of systems such as Design and Optimization of Thermal Systems those arising in different fields of engineering,...

Ngày tải lên: 06/08/2014, 15:20

... overall focus of the book is on the design of thermal systems, which may range from very simple systems consisting of a small number of parts to complex systems that have a large number of components ... domain of acceptable designs is generally obtained The evaluation of the designs requires detailed information on the performance of the system Because of the complexity of most practical thermal systems, ... AND SCOPE OF THE BOOK This book focuses on the design and optimization of thermal systems, several examples of which have been given in the preceding section The importance of thermal systems in...

Ngày tải lên: 06/08/2014, 15:20

... on/off mechanism is often used with the designed thermal system to maintain the desired temperature levels 58 Design and Optimization of Thermal Systems 2.2 CONCEPTUAL DESIGN At the very core of ... design Simulation of the system Evaluation of different designs Iteration and obtaining an acceptable design Optimization of the system design Automation and control Communicating the final design ... requirements of the system and to design the system to achieve these, rather than consider every desired feature of the system 50 Design and Optimization of Thermal Systems Specifications The system designed...

Ngày tải lên: 06/08/2014, 15:20

... position in the design process Optimization is of particular importance in thermal systems because of the strong dependence of cost and output on system design Usually, the optimal design is not ... 2.23 Locations of different sensors for safety and control in Example 2.4 90 Design and Optimization of Thermal Systems 2.3.7 COMMUNICATING THE DESIGN The communication of the final design to the ... Royalties are paid, usually as a percentage of the profit, to the holders of the patent A fixed sum of money may also be 94 Design and Optimization of Thermal Systems 74 10 19 47 31 29 44 18 46 49...

Ngày tải lên: 06/08/2014, 15:20

... mixture of 63% tin and 37% lead has a melting point of 183 C and a mixture of 10% tin and 90% lead has a melting range of 275 to 302 C Additions of silver 106 Design and Optimization of Thermal Systems ... the usefulness of a CAD system However, because of the complexity of typical thermal systems and processes, such CAD systems are often limited to the design of relatively simple systems and equipment ... 118 Design and Optimization of Thermal Systems (c) Extrusion of aluminum from a heated cylindrical block, of diameter 15 cm at a temperature of 600 K, to a rod of diameter cm at the rate of 0.2...

Ngày tải lên: 06/08/2014, 15:20

... Thermal Systems 3.1 INTRODUCTION 3.1.1 IMPORTANCE OF MODELING IN DESIGN Modeling is one of the most crucial elements in the design and optimization of thermal systems Practical processes and systems ... models that are of interest in the design and optimization of thermal systems These are: Analog models Mathematical models Physical models Numerical models Modeling of Thermal Systems 129 3.2.1 ... approximation of a heated body undergoing convective cooling 142 Design and Optimization of Thermal Systems The applicability of the lumped body approximation is based on the ratio of the convective...

Ngày tải lên: 06/08/2014, 15:20

... design of such heat exchangers are discussed in Chapter 152 Design and Optimization of Thermal Systems Example 3.3 In the design of a hot water storage system, it is given that a steady flow of ... shapes Physical modeling is of particular importance in the design of thermal systems because of the complexity of the transport processes that arise in typical practical systems In many cases, it ... convective cooling at the 162 Design and Optimization of Thermal Systems outer surface of the furnace should lower the temperatures Thus, the results from the solution of the governing equations...

Ngày tải lên: 06/08/2014, 15:20

... This chapter discusses the modeling of thermal systems, a crucial element in the design and optimization process Because of the complexity of typical thermal systems, it is necessary to simplify ... significant error in the results The method of 196 Design and Optimization of Thermal Systems least squares, which minimizes the sum of the squares of the differences between the data and the ... material Modeling of Thermal Systems 181 property data, such as the thermodynamic properties of a substance, in terms of equations that form part of the mathematical model of the system There...

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... different design possibilities as 207 208 Design and Optimization of Thermal Systems well as a variety of operating conditions Different designs may thus be evaluated to choose an acceptable design ... 218 Design and Optimization of Thermal Systems Number of iterations 200 100 opt 1.0 1.5 2.0 Relaxation factor FIGURE 4.3 Typical variation of the number of iterations needed for convergence of ... available for solving sets of linear algebraic equations In the Gauss-Jordan elimination method, which is a variation of the 216 Design and Optimization of Thermal Systems Gaussian elimination...

Ngày tải lên: 06/08/2014, 15:20

... value of 10 –4 was found to be adequate The relaxation factor was varied from 1.0 to 2.0 and the number of iterations needed 238 Design and Optimization of Thermal Systems 600 = 10–4 Number of iterations ... triangular elements 244 Design and Optimization of Thermal Systems commonly used for thermal processes and systems is Galerkin’s method (Jaluria and Torrance, 2003) The ultimate result of applying the ... the correct solution System of Nonlinear Algebraic Equations The mathematical modeling of thermal systems frequently leads to sets of nonlinear equations The solution of these equations generally...

Ngày tải lên: 06/08/2014, 15:20

... existing systems Investigate sensitivity of the design to different variables Evaluation of Design Evaluation of different designs is an extremely important use of simulation because several designs ... different designs for selection of an acceptable design Study system behavior under off -design conditions Determine safety limits for the system Determine effects of different design variables for optimization ... means of this model 4.4.1 IMPORTANCE OF SIMULATION System simulation is one of the most important elements in the design and optimization of thermal systems Since experimentation on a prototype of...

Ngày tải lên: 06/08/2014, 15:20

... simulation of simpler systems with available analytical and experimental results 284 Design and Optimization of Thermal Systems Comparison of results from simulation of existing systems with experimental ... the use of simulation to evaluate different designs and for optimization of the system However, the application of simulation to investigate off -design conditions, to modify existing systems ... Validation of mathematical model Validation of numerical schemes Validation of the numerical models for system parts Physical behavior of the simulated system Comparison of results from simulation of...

Ngày tải lên: 06/08/2014, 15:20

... of the system Evaluation of the design Selection of an acceptable design Optimization of the design follows the determination of a domain of acceptable designs and is not included here Most of ... circuitry 304 Design and Optimization of Thermal Systems Library of Previous Designs Any industry involved with the design of systems and equipment would generally develop many successful designs over ... temperature profiles in an enclosed body of water for two inflow/outflow configurations at different values of dimensionless time 314 Design and Optimization of Thermal Systems Acceptable Design of a...

Ngày tải lên: 06/08/2014, 15:20

... of the convective problem are available for use in designing these systems The following example illustrates the use of the preceding analysis for the design of a heat exchanger Example 5.7 Design ... simulation, and design of these systems A few examples of thermal systems in manufacturing were discussed in earlier chapters and a few others will be considered in the presentation on optimization ... the following example, we shall 324 Design and Optimization of Thermal Systems discuss the design process for a typical system employed for thermal processing of materials The problem is taken...

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... with respect to optimization 5.4.7 DESIGN OF COMPONENTS VERSUS DESIGN OF SYSTEMS Throughout this chapter, we have focused on thermal systems, ranging from small systems consisting of only two or ... Acceptable Design of a Thermal System 351 move the fluid The design of such fluid flow systems generally involves the following two considerations: Selection of fluid flow equipment Design of the ... been said about the design of components, even though each system obviously consists of a number of components and the design of the system is often closely coupled with that of the components...

Ngày tải lên: 06/08/2014, 15:20

... value of money in decision making 388 Design and Optimization of Thermal Systems 6.2.4 EFFECTIVE INTEREST RATE It is often convenient and useful to express the compounded interest in terms of an ... specified period of time Therefore, the future worth (FW) of P after n years with an interest rate of i, compounded yearly or m times yearly, 392 Design and Optimization of Thermal Systems are given, ... the iterative redesign process and to study the convergence characteristics are also discussed 374 Design and Optimization of Thermal Systems In order to illustrate the coupling of the different...

Ngày tải lên: 06/08/2014, 15:20

... value of money; the second involves the relevance of economic considerations in the design of thermal systems Therefore, calculations of present and future worth of lumped amounts as well as of ... function have the same time period of operation, a comparison may conveniently be made on the basis of the present worth of 414 Design and Optimization of Thermal Systems all costs Then, initial ... stages of the design process and could affect the choice of conceptual design, components, materials, geometry, dimensions, and other design variables Costs are very important in design and often...

Ngày tải lên: 06/08/2014, 15:20