The Design Of Digital Test Simulator

1992 ◽  
pp. 71-81
Author(s):  
Mohamed Othman ◽  
Bambang Sunaryo Suparjo
Keyword(s):  
Computer Aided Design ◽  
Logic Circuit ◽  
Testability Analysis ◽  
Computer Aided ◽  
Digital Test ◽  
Analysis System ◽  
Aided Design ◽  
Controllability And Observability ◽  
Combinational Logic Circuit ◽  
Pascal Language

Digital Test Simulator is a Computer Aided Design (CAD) tools written in Turbo Pascal language ver. 5.0. It is a gate level simulator to measures the testability values of a combinational logic circuit. It was developed based on the testability analysis system called Computer-Aided MEsurefor LOgic Testability (CAMELOT). The measurement of the testability, controllability and observability for every nodes are based on the topologyical description of the circuit. The final results produced by simulator can be expressed in the form of table and histogram. Comparison of the various nodal testability values allows the areas of poor testability to be readily identified and the inprovement can be done to the circuits to make it more testable. Key Words: Logic circuit; Computer-Aided Design; CAMELOT approach; Digital Test Simulator

A ROBUST INTEGRATED COMPUTER-AIDED DESIGN PACKAGE FOR URBAN DRAINAGE NETWORKS

1994 ◽  
Vol 30 (1) ◽  
pp. 117-120 ◽  
Author(s):  
K. W. Chau ◽  
S. L. Ng
Keyword(s):  
Computer Aided Design ◽  
Water Drainage ◽  
Flow Prediction ◽  
Drainage Networks ◽  
Computer Aided ◽  
Drainage Design ◽  
Drainage Pipe ◽  
Longitudinal Profiles ◽  
Aided Design ◽  
Pascal Language

This paper presents the development and verification of a computer aided design and drafting package for medium sized municipal storm water drainage systems (DRAINAGE). The numerical model, which is designed for use on microcomputers, is written in PASCAL Language and is compiled by PC software TURBO PASCAL version 6.0. The computer package for flow prediction and drainage design applies the Colebrook White Equation and the Rational Method to route pipe flows through tree-type drainage networks, automatically adjusting drainage pipe diameters to fulfil flow requirements and backwater effects. The progrmn outputs are written as DXF files which can be read and displayed readily as drawings of drainage layout plml ,md longitudinal profiles in an AutoCAD environment. DRAINAGE replaces the timeconsuming conventional method for designing stormwater drainage networks. Although the prognun is tailored for application and use in Hong Kong, it can be easily adapted to other situations.

Development and Research of PVT Modules in Computer-Aided Design and Finite Element Analysis Systems

2020 ◽  
pp. 314-342 ◽  
Author(s):  
Vladimir Panchenko ◽  
Valeriy Kharchenko
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Computer Aided Design ◽  
Three Dimensional ◽  
Three Dimensional Model ◽  
Element Analysis ◽  
Computer Aided ◽  
Three Dimensional Models ◽  
Analysis System ◽  
Aided Design

This chapter discusses the simulation of solar photovoltaic thermal modules of planar and concentrator structures in computer-aided design systems KOMPAS 3D and finite element analysis ANSYS. To create photovoltaic thermal modules, a method for designing their three-dimensional models in the computer-aided design system has been developed. To study the thermal regimes of the created three-dimensional models of modules, a method has been developed for visualizing thermal processes, coolant velocity, and flow lines of a cooling agent in a finite element analysis system. As a result of calculations in the finite element analysis system using the developed method, conclusions can be drawn about the feasibility of the design created with its further editing, visualization of thermal fields, and current lines of the radiator cooling agent. As an illustration of the simulation results, a three-dimensional model of a photovoltaic thermal planar roofing panel and an optimized three-dimensional model of a photodetector of a solar concentrator photovoltaic thermal module are presented.

scholarly journals Making a Mesh of Things

2003 ◽  
Vol 125 (09) ◽  
pp. 54-56 ◽  
Author(s):  
Jean Thilmany
Keyword(s):  
Finite Element Analysis ◽  
Computer Aided Design ◽  
Element Analysis ◽  
Entry Level ◽  
Design Engineers ◽  
Computer Aided ◽  
Analysis System ◽  
Aided Design ◽  
Common User ◽  
Load Conditions

Models need to be meshed and made acceptable for analysis before finite element analysis (FEA) can be run. Software providers that make pre-processing applications must keep up with changes in FEA technology to remain competitive. The mesh contains the data on material and structural properties that define how the part will react to certain load conditions. Today's closely integrated computer-aided design (CAD), pre-processing, and FEA applications allow CAD and entry-level FEA technologies to work together within a common user interface and give design engineers a quick, effortless way to see if their designs will meet specifications. Simplifying the FEA programs so a design engineer can use them limits the intricacy of the mesh as well as the depth of analysis. HyperMesh prepares CAD geometries for analysis. The meshed geometries are then exported to Procter & Gamble's customized package analysis system called Virtual Package Simulation. Today, engineers use mesh technologies and attendant FEA programs for an array of analyses. Some are related to manufacturing, but as often as not they've found their way into other industries.

Computer-Aided Design of Bicycles

1991 ◽  
Author(s):  
M. Khosrowjerdi ◽  
Robert C. Azar ◽  
Ali Salehi ◽  
G. H. Nazari
Keyword(s):  
Computer Aided Design ◽  
Post Processing ◽  
Finite Element Program ◽  
Analysis And Design ◽  
Design Engineers ◽  
Pertinent Data ◽  
Computer Aided ◽  
Element Program ◽  
Analysis System ◽  
Aided Design

Abstract Traditional manual designing of bicycles often relies on prototype building and testing and since structural deficiencies often are not obvious until a prototype fails, several build-and-test iterations are usually required before a satisfactory design is obtained. Also, the final design may be less than optimal because of quick fixes inserted at the last minute. However, by utilizing computer-aided design, better bicycles can be designed at smaller investments of time and money. The development and utilization of a DI-3000 based (graphics subroutines developed by Precision Visual), user-friendly, self contained computer aided design package for the analysis and design of bicycle frames and forks are presented. The software, written in Fortran 77 and executable on most passive and active graphics devices, creates the necessary analysis input files for the ANSYS finite element program (developed and marketed by Swanson Analysis System Inc.). These pre and post processing files in conjunction with the ANSYS program are used to determine deflections and stress components. The graphics user interface module of the software allows users to enter bicycle geometry, loading and other pertinent data quickly and efficiently. Tubing configuration and specifications are selected from a data base through the use of cursor-controlled menus. The loading menu presents users with seven different types of realistic and self-consistent loading conditions from which to choose. Computer graphics is also used extensively wherever appropriate to enhance user-computer interaction. Contrasting color and text size are used to explain pictorially as well as visually unfamiliar terminology and to clarify vague sign or orientation conventions, thus, leading to more accurate input. While this package has been designed for instructional purposes, it can also be used by design engineers involved in the design of bicycles to facilitate the creation of ANSYS pre and post processing files.

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