ISSN:1061-3773    

DOI:10.1002/cae.6180030102

出版商:John Wiley&Sons, Inc.    

年代:1995

数据来源: WILEY

摘要:

AbstractThis article describes a user‐friendly C/C++/Windows‐based program which simulates and graphically displays a Bank‐to‐Turn (BTT) missile in pursuit of an evading target. Traditionally, students and practicing engineers must conduct extensive simulations to develop insight about such a complex “system.” In this article, an educational PC graphics program which significantly expedites this process is described. The program is organized into three modules: (1) A program‐user interface provides interactive mouse‐keyboard‐driven pull‐down menus to adjust engagement parameters. (2) A simulation module generates engagement data from a system of nonlinear differential equations modeling the missile, the autopilot, various guidance laws, and target maneuvers. (3) A graphics module uses the data to update the encounter on the screen. The program can be linked with MATLAB macros for purposes of analysis. A help/instruct facility assists users with program features and concepts. Sample missile‐target engagements are presented to demonstrate the utility of the program as an educational tool and as a tool for the analysis, design, and evaluation of missile guidance and control systems. In short, the program has proven itself as a useful educational tool for students studying feedback and control systems and as an excellent vehicle for introducing students to modeling, simulation, and graphical visualization

ISSN:1061-3773    

DOI:10.1002/cae.6180030103

出版商:John Wiley&Sons, Inc.    

年代:1995

数据来源: WILEY

摘要:

AbstractReported here is a National Science Foundation sponsored effort to develop computer animations to enhance lectures in the dynamics course that is part of most undergraduate engineering curricula. Data gathered and problems encountered in the course of the development process are presented, as is a summary of the individual software modules developed.

ISSN:1061-3773    

DOI:10.1002/cae.6180030104

出版商:John Wiley&Sons, Inc.    

年代:1995

数据来源: WILEY

摘要:

AbstractThis article shows how TK Solver's unique ability to “backsolve” system of linear and nonlinear equations can contribute to condensing and clarifying problem solutions. Beyond this, TK can be used as a complete knowledge management environment in which equations, tabular data, and design rules are made easily accessible and usa

ISSN:1061-3773    

DOI:10.1002/cae.6180030105

出版商:John Wiley&Sons, Inc.    

年代:1995

数据来源: WILEY

摘要:

AbstractThis article discusses the relationships among the different graphical projection techniques used by engineers and architects. These relationships are examined in the context of the transformation matrices that are employed to generate such projections on the computer. The report shows that the transformations that produce parallel (isometric and orthographic) and perspective projections can be derived as special cases of a transformation matrix that produces a three‐point perspective view. For this reason, the latter transformation matrix is referred to here as the “universal transformation matrix.” A better understanding of the different projection techniques, and the relationships among them, emerges from the recognition that all parallel and perspective transformations may be written as special cases of a single, general transformation m

ISSN:1061-3773    

DOI:10.1002/cae.6180030106

出版商:John Wiley&Sons, Inc.    

年代:1995

数据来源: WILEY

摘要:

AbstractThis article presents a method for describing microprocessors that allows a single simulator to support many microprocessors. The article begins with a discussion of the importance of flexible simulation software, then describes a current implementation. Specific educational applications and advantages are also discussed.

ISSN:1061-3773    

DOI:10.1002/cae.6180030107

出版商:John Wiley&Sons, Inc.    

年代:1995

数据来源: WILEY

摘要:

AbstractThis article presents a computer package that can be used in the minimization of logic functions. The package is a practical tool for teaching digital design and other related courses. The inputs to this program are the number of switching variables and the switching function to be minimized. The function is introduced in the form of minterms or in the form of a switching expression. The user may choose any of three methods to perform the minimization process: algebraic manipulation using theorems, the Karnaugh map, and the Quine—McCluskey methods. The program starts the minimization gradually until an optimal expression is reached. The user can visualize the steps of the procedure used in the particular minimization technique. Thus, the package provides several possibilities for minimizing certain functions and then selects the best approach among them which employs the minimum number of gates for the gate‐level drawing of the funct

ISSN:1061-3773    

DOI:10.1002/cae.6180030108

出版商:John Wiley&Sons, Inc.    

年代:1995

数据来源: WILEY

摘要:

AbstractComputer algebra systems such as Maple, Mathematica, and MACSYMA are readily available for a wide range of PCs and workstations. Many college campuses have site licenses for these software tools and make them widely available to students through PC labs, across networks, and on time‐sharing systems. In addition, student versions of these software tools are widely available at nominal cost. Computer algebra systems provide sophisticated computational support and are intuitive to use. In this article we describe how we use Maple to support an upper‐division undergraduate course teaching elementary queueing theory. We discuss the significant enhancement added by using Maple for this coursework. We present the traditional approach to this material (i.e., deriving the closed form solutions for a specific queueing model), then we show how we approach the material using numerical solutions based on the general equations for steady state probabilities for a Poisson Birth‐Death process. We present several examples and discuss the strengths of our app

ISSN:1061-3773    

DOI:10.1002/cae.6180030109

出版商:John Wiley&Sons, Inc.    

年代:1995

数据来源: WILEY