An Analysis of Drill Geometry for Optimum Drill Design by Computer. Part II—Computer-Aided Design

1970 ◽  
Vol 92 (3) ◽  
pp. 657-666 ◽  
Author(s):  
S. Fujii ◽  
M. F. DeVries ◽  
S. M. Wu
Keyword(s):  
Computer Program ◽  
Computer Aided Design ◽  
Cutting Planes ◽  
Orthogonal Cutting ◽  
Design Parameters ◽  
Twist Drill ◽  
Grinding Parameters ◽  
Computer Aided ◽  
Aided Design ◽  
Drill Design

In Part II, a computer program that aids in the design of a twist drill is described, based on the analysis presented in Part I. A true drill and a “computer-designed” drill having identical design and grinding parameters are compared in orthogonal cutting planes. The effects of the design parameters on drill geometry are investigated utilizing the computer program.

Computer Aided Design and Grinding for Helical Drill Points

2008 ◽  
Vol 389-390 ◽  
pp. 205-210 ◽  
Author(s):  
Ping Zou ◽  
Xin You Li ◽  
Yu Tang ◽  
Xu Lei Yang
Keyword(s):  
Computer Aided Design ◽  
Simulation System ◽  
Geometric Parameters ◽  
Aluminum Sheet ◽  
Design Parameters ◽  
Drilling Performance ◽  
Grinding Parameters ◽  
Computer Aided ◽  
Drill Point ◽  
Aided Design

In this paper, a Drill Point Simulation System (DPSS) which is being developed at Northeastern University is presented. By means of DPSS, the geometric models of the helical drill points were shown after inputting their design parameters. Then, the grinding parameters of the helical drill points were produced. According to the grinding parameters, the helical drill points were ground by the SD helical drill point grinder which was developed at Northeastern University. Furthermore, drilling tests were performed on aluminum sheet workpieces to investigate drilling performance of the helical drill points. In addition, the relationships between the geometric parameters of helical drill points and their grinding parameters also were derived.

Computer Aided Automotive Interior Design for Kansei Engineering

2011 ◽  
Vol 130-134 ◽  
pp. 504-507 ◽  
Author(s):  
Li Hong Zhu ◽  
Han Zhao ◽  
Xiao Chen Yin ◽  
Li Jun Zhu ◽  
Liang Zhang
Keyword(s):  
Interior Design ◽  
Automotive Industry ◽  
Computer Aided Design ◽  
Design Parameters ◽  
Kansei Engineering ◽  
Computer Aided ◽  
Quantitative Analysis Method ◽  
Aided Design ◽  
Industry Trends ◽  
Automotive Interior

Nowadays, the development of automotive industry trends more personalized and profuse product alternatives. Kansei Engineering has been applied to interior design for customer satisfaction based on ergonomic technology in the paper. The computer aided design automotive interior system includes two subsystems: one is Computer-aided Sensation Survey Subsystem and the other is Computer-aided Automobile Interior Design Subsystem. Mathematical statistics and quantitative analysis method are adopted to establish quantified relationship between product perceptual image and design parameters.

Computer Aided Design of Classic External Geneva Mechanism

2014 ◽  
Vol 1036 ◽  
pp. 662-667
Author(s):  
Iulian Stǎnǎşel ◽  
Florin Blaga ◽  
Traian Buidoş
Keyword(s):  
Computer Program ◽  
Computer Aided Design ◽  
Input Data ◽  
3D Model ◽  
Calculated Data ◽  
Computer Aided ◽  
Precise Movement ◽  
Measurement Devices ◽  
Aided Design ◽  
Intermittent Motion

Geneva mechanism is used as a mechanism for transforming rotary motion into intermittent motion and is able to achieve a precise movement and its lock, which makes it usable in many areas, particularly in timer devices, measurement devices, feed mechanisms, positioning mechanisms, pick-up and transport machinery, textile machinery etc. The studied literature showed that, although it has long been known, this mechanism is still interesting for contemporary researchers. The present paper proposes a method of synthesis and a computer-aided kinematic and dynamic analysis for this mechanism. Based on input data, it was developed a computer program that computes the dimensions of components of Geneva mechanism and determines velocity acceleration and displacement of Geneva wheel. The dimensional calculated data were also used to obtain 3D model of the mechanism.

Computer Aided Design for High Mechanical Efficiency of Wolfrom Type Speed Reducers

1994 ◽  
Author(s):  
Cosmin Orlandea ◽  
Ovidiu Tataru
Keyword(s):  
Computer Program ◽  
Computer Aided Design ◽  
Mechanical Efficiency ◽  
Reduction Ratio ◽  
Transmission Ratio ◽  
Physical Size ◽  
Computer Aided ◽  
Transmission Reduction ◽  
High Torque ◽  
Aided Design

Abstract Wolfrom type planetary speed reducers are complex planetary transmissions, formed of three simple planetary mechanisms that have the same carrier H. The main characteristic of this kind of reducers is the large transmission reduction ratio (usually by a factor of 100 ... 300), obtained with a relatively small sized reducer. Generally, high transmission ratio reducers have the capability to output high torque. Considering the fact that their physical size is small, there are high normal loads between the teeth of the component gears and in the bearings, increasing the internal losses of the system. The object of this paper is to help the designer of this type of speed reducers to find the limits of the transmission ratio corresponding to an acceptable mechanical efficiency and size. We have expressed all the relations as functions of only three variables (z1, a and δ), that best define the integer type of relations involved in this paper. Based on these relations, we have created a computer program to optimize the value of the total mechanical efficiency of the planetary train.

Computer Aided Design of Bucket Type Elevators and Belt Conveyors

1992 ◽  
Author(s):  
Birol Kilkis ◽  
S. Selçuk Sager
Keyword(s):  
Computer Program ◽  
Granular Materials ◽  
Computer Aided Design ◽  
Transportation Systems ◽  
Design Tool ◽  
The Other ◽  
Bulk Materials ◽  
Computer Aided ◽  
Belt Conveyors ◽  
Aided Design

Abstract One of the most effective transportation systems especially for bulk materials is continuous conveyors. They enable to transport materials quickly, economically and with rather simple means of handling. On the other hand for transportation needs involving steep grades and elevations, bucket type elevators are suitable especially for granular materials. In this study a computer program has been developed in order to provide a computer aided design tool for both bucket type elevators and belt conveyors. Operation of the program is interactive. Thus, some critical decisions during the design can be made by the designer, himself. The program has been written in BASIC programming language for Macintosh Plus personal computers. It can be also used in Macintosh II computers. The computer program standardizes all design results and the design conforms the relevant TSE, DIN and ISO standards. All standard tables used in the program, are available in the database. The database can be easily edited and updated. A design report can also be obtained at the end of the design as well as the screen output of the design session.

scholarly journals Computer Aided Design of Adjustable Thin Film Resistors

1980 ◽  
Vol 7 (1-3) ◽  
pp. 77-81
Author(s):  
Marcel Francois
Keyword(s):  
Thin Film ◽  
Computer Program ◽  
Computer Aided Design ◽  
Input Data ◽  
Film Resistor ◽  
Thin Film Resistor ◽  
Computer Aided ◽  
Thin Film Resistors ◽  
Aided Design

A computer program has been developed, which calculates any adjustable thin film resistor from simple input data (electrical, geometrical, positional, orientational), punched on “input cards”. The “output cards”, which contain the coordinates, are fed to a numerically controlled draughting machine, which produces either an intermediate ink-on-paper drawing or the final cut-and-strip artwork. Our CAD method proceeds in several steps, offering all the permitted solutions and providing for designer's options.

Computer-Aided Design of X-Ray Microtomographic Scanners

2014 ◽  
Vol 1033-1034 ◽  
pp. 1327-1330 ◽  
Author(s):  
V.I. Syryamkin ◽  
E.N. Bogomolov ◽  
M.S. Kutsov
Keyword(s):  
Computer Aided Design ◽  
Three Dimensional ◽  
Design Parameters ◽  
Optical Elements ◽  
X Ray ◽  
X Ray Imaging ◽  
Functional Scheme ◽  
Computer Aided ◽  
Neural Network System ◽  
Aided Design

The article is to study the development of computer-aided design of X-ray microtomography - the device for investigating the structure and construction three-dimensional images of organic and inorganic objects on the basis of shadow projections. This article provides basic information regarding CAD of X-ray microtomography and a scheme consisting of three levels. The article also shows basic relations of X-ray computed tomography, the generalized scheme of a X-ray microtomographic scanner. The methods of X-ray imaging of the spatial microstructure and morphometry of materials are described. The main characteristics of an X-ray microtomographic scanner, the X-ray source, X-ray optical elements and mechanical components of the positioning system are shown. The block scheme and software functional scheme for intelligent neural network system of analysis of the internal microstructure of objects are presented. The method of choice of design parameters of CADof X-raymicrotomography is aimed at improving the quality of design and reduce of costs of it. It is supposed to reduce the design time and eliminate the growing number of engineers involved in development and construction of X-ray microtomographic scanners.

Computer-Aided Design of Compact Helical Gear Sets

1989 ◽  
Vol 111 (2) ◽  
pp. 285-289 ◽  
Author(s):  
C. S. Jog ◽  
S. S. Pande
Keyword(s):  
Computer Aided Design ◽  
Design Strategy ◽  
Helix Angle ◽  
Helical Gear ◽  
Optimization Techniques ◽  
Design Parameters ◽  
Gear Design ◽  
Computer Aided ◽  
Bending Stresses ◽  
Aided Design

This paper presents the design strategy for the Computer-Aided Design (CAD) of compact helical gear sets. Using optimization techniques, fundamental gear design parameters such as the number of teeth on the pinion, helix angle, and diametral pitch (or module) are selected subject to constraints on bending stresses, contact stresses, and involute interference limits for both standard and nonstandard gearing. The CAD procedure is illustrated with the help of a design example.

scholarly journals Optimizing body design of a computer-assisted manual press

2019 ◽  
Vol XXII (2) ◽  
pp. 169-176
Author(s):  
Turof M.
Keyword(s):  
Computer Program ◽  
Computer Aided Design ◽  
Solid Modeling ◽  
Computer Aided Engineering ◽  
Computer Assisted ◽  
Computer Aided ◽  
Complex Program ◽  
Body Design ◽  
Aided Design ◽  
Microsoft Windows

This paper proposes a simplified design of a press body manually using a model consisting of a double symmetrical frame flush. Both Mathcad and Solidworks programs were used to determine the dimensions and drawings. MathCad is a very complex program, but also very useful for engineers, researchers, mathematicians, students, teachers, and all those who use math. Mathcad is a much better way to perform and manage engineering calculations, making them easy to achieve, understand, verify, communicate, and logically follow. SolidWorks is a solid modeling computer-aided design (CAD) and computer-aided engineering (CAE) computer program that runs on Microsoft Windows.

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