Cycloid Drives With Machining Tolerances: Part II — Computer-Aided Design

1987 ◽  
Author(s):  
D. C. H. Yang ◽  
J. G. Blanche
Keyword(s):  
Computer Aided Design ◽  
Torque Ripple ◽  
Gear Ratio ◽  
Performance Indices ◽  
Design Synthesis ◽  
Input Shaft ◽  
Crank Angle ◽  
Computer Aided ◽  
And Performance ◽  
Aided Design

Abstract In this paper a computer-aided design package is developed for analyzing cycloid drives with machining tolerance. It is found that both the backlash and the torque ripple are periodic functions of the input crank angle. The frequency is equal to the number of teeth on the ring gear times the input shaft frequency. Also, simple and practical formulas for design synthesis of these types of transmissions are developed with the consideration of tolerance, drive parameters (gear ratio, normalized tooth height and pitch diameter) and performance indices (backlash and torque ripple).

Improving creative self-efficacy and performance through computer-aided design application

2019 ◽  
Vol 31 ◽  
pp. 103-111 ◽  
Author(s):  
Yu-shan Chang ◽  
Mavis Yi-Ching Chen ◽  
Meng-Jung Chuang ◽  
Chia-hui Chou
Keyword(s):  
Self Efficacy ◽  
Computer Aided Design ◽  
Computer Aided ◽  
And Performance ◽  
Creative Self ◽  
Aided Design

VESPER: Visual Exploration of Similarity and Performance Metrics for Computer-Aided Design Repositories

2018 ◽  
Author(s):  
Devarajan Ramanujan ◽  
William Z. Bernstein
Keyword(s):  
Visual Analytics ◽  
Computer Aided Design ◽  
Performance Metrics ◽  
External Validation ◽  
Visual Exploration ◽  
Similarity Metrics ◽  
Report Generation ◽  
Computer Aided ◽  
And Performance ◽  
Aided Design

VESPER (Visual Exploration of Similarity and PERformance) is a visual analytics system for exploring similarity metrics and performance metrics derived from computer-aided design (CAD) repositories. It consists of (1) a data processing module that allows analysts to input custom similarity metrics and performance metrics, (2) a visualization module that facilitates navigation of the design spaces through coordinated, interactive visualizations, and (3) a report generation module that allows analysts to export lifecycle data of selected repository items as well as the input metrics for further external validation. In this paper, we discuss the need, design rationale, and implementation details for VESPER. We then apply VESPER to (1) sustainability-focused exploration of parts, and (2) exploration of tool wear and surface roughness in machined parts.

Computer-Aided Design Synthesis Using Syntactic Solid Modeling

1994 ◽  
Author(s):  
Vassilios E. Theodoracatos ◽  
Xiaogang Guan
Keyword(s):  
Computer Aided Design ◽  
Solid Modeling ◽  
Large Set ◽  
Complex Structures ◽  
Design Synthesis ◽  
Computer Aided ◽  
Grammar Rules ◽  
Small Set ◽  
Definition Of ◽  
Aided Design

Abstract This paper presents a new Computer-Aided Design (CAD) synthesis model which uses Plex Grammar as structural relationship descriptors and NURBS surface representation for constructing standard and non-standard solid entities. Here, the designer uses a syntactic design methodology for early topological and geometrical definition of the structure of concept alternatives resulting from the design process. This syntactic scheme provides the capability of describing a large set of complex structures by using a small set of simple entities. The recursive nature of the grammar and the hierarchical representation of the structure makes the description of complex structures simple and under the direct control of the designer. An object structure constructive tree is generated and subsequently translated into Plex Grammar production rules in order to form an Interconnection Matrix (ICM) expressing. The resulting Plex structure defined in the ICM expresses the topological information among entities which form the specific types of objects. By modifying the Plex grammar rules, various objects with different geometry and topology can easily be reconstructed. Compared to conventional solid modeling techniques, this approach provides more systematic object generation, easy manipulation and modification, control over congruity and the ability to represent sculptured shapes. Several examples of syntactic solid modeling applied in design synthesis will be presented for further usage in downstream applications.

Computer-Aided Design, Synthesis, and Biological Activity Evaluation of Potent Fusion Inhibitors Targeting HIV-1 gp41

2011 ◽  
Vol 7 (4) ◽  
pp. 309-316 ◽  
Author(s):  
Jian Jun Tan ◽  
Bin Zhang ◽  
Xiao Jing Cong ◽  
Lei Fu Yang ◽  
Bin Liu ◽  
...  
Keyword(s):  
Biological Activity ◽  
Computer Aided Design ◽  
Design Synthesis ◽  
Activity Evaluation ◽  
Fusion Inhibitors ◽  
Computer Aided ◽  
Aided Design ◽  
Hiv 1

Computer Aided Engineering in Design

1985 ◽  
Vol 199 (3) ◽  
pp. 145-151 ◽  
Author(s):  
F J Richardson
Keyword(s):  
Computer Aided Design ◽  
Computer Aided Engineering ◽  
Accurate Information ◽  
Engineering System ◽  
Computer Aided ◽  
History Of ◽  
Design Production ◽  
And Performance ◽  
The Cost ◽  
Aided Design

Success of the design process hinges on efficient communication between the various functions involved. Traditionally this communication has been ‘paper based’ with information passing between sales, design, production and manufacture to describe the complete history of the product. This complex interaction between the functions depends on the availability at each stage of the most up-to-date and accurate information. The paper based system has many shortcomings in this respect particularly the inability of the designer to assess interactively the effect of any changes he may make on the cost, delivery, quality and performance of the product. The use of computer aided design as a central part of the computer aided engineering system allows a company greatly to improve communications during a project by giving the engineer a way of providing accurate information more quickly to each adjacent function while receiving feedback on the effectiveness and suitability of the product in a fraction of the time.

Computer-aided design, synthesis and biological assay of p-methylsulfonamido phenylethylamine analogues

2000 ◽  
Vol 10 (19) ◽  
pp. 2153-2157 ◽  
Author(s):  
Hong Liu ◽  
Min Ji ◽  
Hualiang Jiang ◽  
Ligang Liu ◽  
Weiyi Hua ◽  
...  
Keyword(s):  
Computer Aided Design ◽  
Biological Assay ◽  
Design Synthesis ◽  
Computer Aided ◽  
Aided Design
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