scholarly journals Logic Simulator:Sequential Logic Minimization

1994 ◽  
pp. 45-59
Author(s):  
Mohamed Othman ◽  
Bambang Sunaryo Suparjo
Keyword(s):  
Computer Aided Design ◽  
State Table ◽  
Logic Minimization ◽  
Computer Aided ◽  
Minimum Solution ◽  
Sequential Logic ◽  
Closure Function ◽  
Cad Tool ◽  
Aided Design

Computer Aided Design (CAD) is a tool that comprises of a program written in Turbo Pascal ver 5.0. This CAD tool is use to minimize the states of synchronous sequential logic automatically. In completely specified case, it will give a minimum solution but in the incomplete case, it does not guarantee to produce a minimum solution. Keywords: state-table, compatible tree, maximal compatible(MC), closure function.

A NUMERICAL SIMULATION INVESTIGATION OF THE HYDRODYNAMIC MOTIONS OF A SHIP ADVANCING IN WAVES

2021 ◽  
Vol 156 (A4) ◽  
Author(s):  
D C Lo ◽  
D T Su ◽  
J T Lin
Keyword(s):  
Computer Aided Design ◽  
Degrees Of Freedom ◽  
Fluid Dynamic ◽  
Wave Interaction ◽  
Six Degrees Of Freedom ◽  
Ship Model ◽  
Computer Aided ◽  
Cad Tool ◽  
Aided Design ◽  
Wave Incidence

This study establishes a relationship diagram of the ship-wave interaction under a ship advancing in waves. A finite difference method based on volume of fluid (VOF) principles was used to simulate the hydrodynamic motions of a ship advancing in waves. A ship model was constructed using a computer aided design (CAD) tool. The computational fluid dynamic (CFD) technique was used to calculate the hydrodynamic motions effect of a ship sailing in waves at varying angles of incidence. This study investigates a number of significant related parameters, such as the speed of the ship model, the various wave incidence angles, the wave height, and the navigation time. A chart is also used to show the flow field, and changes in the six degrees of freedom motion and continually compare changes in the drag force.

SPICE MODEL FOR COMPUTER-AIDED DESIGN OF BIOPOTENTIAL AMPLIFIER

2004 ◽  
Vol 16 (03) ◽  
pp. 151-156 ◽  
Author(s):  
YUN-LI LIU ◽  
DONG-LONG LIN ◽  
YUE-DER LIN
Keyword(s):  
Computer Aided Design ◽  
Electrode Impedance ◽  
External Interference ◽  
Proposed Model ◽  
Computer Aided ◽  
Biopotential Amplifier ◽  
Cad Tool ◽  
Power Line Interference ◽  
Aided Design ◽  
Distinct Features

There are many different kinds of biopotential signal. These signals are tiny in amplitude and the measurement is easily corrupted by external interference. For these reasons, the design of high-quality biopotential amplifier is usually an empirical task. To make the design of biopotential amplifier more efficient, this study proposes a simulation model for bioelectric signal measurement such that the design task can be achieved thoroughly by powerful computer-aided design (CAD) tool. The proposed model has two distinct features, one is the simulated biopotential signal is used for the genesis of biosignal, and the other one is the skin-electrode impedance is replaced by its corresponding equivalent circuit, which is a complex RC network. To verify the feasibility of the proposed model, an ECG amplifier is designed in Spice-related CAD tool and is implemented for ECG recording. From the results, the amplifier characteristics agree well between the simulated and the implemented circuit. Besides, the effect due to the commonly encountered power-line interference during biopotential measurement can be reasonably evaluated in the proposed model.

A Computer-Aided Design Tool in Java for Planar Gripper Design

2004 ◽  
Vol 4 (1) ◽  
pp. 43-48 ◽  
Author(s):  
Mike Tao Zhang ◽  
Ken Goldberg
Keyword(s):  
Computational Efficiency ◽  
Computer Aided Design ◽  
Design Tool ◽  
Java Applet ◽  
Physical Experiments ◽  
Computer Aided ◽  
Cad Tool ◽  
Aluminum Part ◽  
Aided Design ◽  
Final Orientation

We describe an Internet-based CAD tool that automatically designs gripper jaws that will rotate a given rigid convex polygonal part from a selected stable resting orientation to a desired final orientation to facilitate insertion or assembly. In this paper we describe the CAD algorithm, its Java implementation, and improvements that relax input specifications and improve computational efficiency. We illustrate with physical experiments using a machined aluminum part and the resulting gripper as designed by the CAD tool. We also consider cases where a solution may not exist and derive a class of triangular parts that cannot be rotated with the planar grippers. The CAD tool, implemented as a Java applet, is available online at www.ieor.berkeley.edu/∼goldberg/sa-gripper/.

scholarly journals Computer Aided Design and Analysis of Tapping Tool with Diametrical flexibility

2017 ◽  
Vol 7 (2 (S)) ◽  
pp. 226
Author(s):  
Satish Bahale ◽  
Amit Shende
Keyword(s):  
Computer Aided Design ◽  
Metal Cutting ◽  
Longitudinal Axis ◽  
Rotational Energy ◽  
Machined Surface ◽  
Machine Shop ◽  
Computer Aided ◽  
Cutting Operation ◽  
Cad Tool ◽  
Aided Design

Tapping operation which refers to production of internal threads forms an integral part of any machine shop and it is intended to provide semi permanent fastening to the components of product so as to lend themselves for repairs and replacements. Though various methods of internal threading are available such as internal threading by milling, grinding or forming but internal threading by metal cutting which employs a tapping tool is indeed the mostly used for products where accuracy forms the base of evaluation. Last few decades have seen the growth of automobile industries and has resulted in development of its allied operations of which tapping is one of the crucial operation performed. The conventional tapping operation which surely involves rotating the tool and feeding past the pre drilled hole to create the contours called as internal threads and this is followed by withdrawal of tapping tool by reversing it with aid of rotational energy. The present paper attempts to design and analyze a tapping tool which will have no requirement of reversing of tool at the end of cutting operation which is essentially done by changing the design of conventional solid tap. The solid tapping tool is divided into two parts along the longitudinal axis and a mechanism is prompted to give the two parts actuation which would shrink at the end of cutting operation to be dragged out of hole without damaging the machined surface and providing the diametrical flexibility to engulf other diameters to be machined. This tapping tool with diametrical flexibility is designed in CAD tool named as CATIA V5 and efficiently analyzed by using FEA technique which is the working phenomenon for ANSYS.

APPréCIE: A Computer Package for the Simulation and Design of Mechanical Grippers

1993 ◽  
Author(s):  
Clément M. Gosselin ◽  
Sylvain Lemieux
Keyword(s):  
Computer Aided Design ◽  
Practical Problem ◽  
Input Output ◽  
Large Database ◽  
Dimensional Changes ◽  
Computer Aided ◽  
Cad Tool ◽  
Aided Design ◽  
Robotic Applications ◽  
Simulation Package

Abstract This paper presents a simulation package developed for the computer-aided design of simple mechanical grippers. The program includes a relatively large database of gripper architectures which can be accessed interactively by the designer. The kinematic analysis of each of the generic architectures has been performed symbolically at the programming stage and explicit expressions of the input-output equations as well as the velocity relationships have been coded. This provides an accurate and fast interactive response. The kinematic dexterity and the gripping index can be plotted and are updated automatically when dimensional changes are made. Finally, a graphic animation of the grippers is available. An example is given here to illustrate the application of the design package to a practical problem. This CAD tool could be of great help in the context of the design of mechanical grippers which is one of the key challenges in advanced robotic applications.

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