Revolute-Cylindrical-Cylindrical-Cylindrical linkage optimum dimensional synthesis with static structural loading

2018 ◽  
Vol 233 (1) ◽  
pp. 256-268 ◽  
Author(s):  
Wen-Tzong Lee ◽  
Jose Cosme ◽  
Kevin Russell
Keyword(s):  
Static Loading ◽  
Software Package ◽  
Static Equilibrium ◽  
Optimization Models ◽  
Dimensional Synthesis ◽  
Analysis Software ◽  
Order Branch ◽  
Structural Loading ◽  
Circuit Defects ◽  
Static Torque

General optimization models for the dimensional synthesis of defect-free Revolute-Cylindrical-Cylindrical-Cylindrical linkages with static loading are formulated and evaluated in this work. With these optimization models, Revolute-Cylindrical-Cylindrical-Cylindrical linkage dimensions required to approximate coupler positions or coupler path points while achieving static equilibrium (given coupler loads) within a maximum driver static torque are calculated. These models also include constraints that eliminate order, branch and circuit defects-defects that are common in traditional dyad-based dimensional synthesis. Therefore, the novelty of this work is the development of optimization models that permit the synthesis of order, branch and circuit defect-free Revolute-Cylindrical-Cylindrical-Cylindrical motion and path generators that also achieve static equilibrium within a maximum specified driver torque magnitude for specified coupler loads. This work conveys both the benefits and drawbacks realized when implementing these optimization models on a personal computer using the commercial mathematical analysis software package Matlab.

On RCCC Linkage Motion Generation With Defect Elimination for an Indefinite Number of Precision Positions

2017 ◽  
Vol 9 (6) ◽  
Author(s):  
Wen-Tzong Lee ◽  
Jose Cosme ◽  
Kevin Russell
Keyword(s):  
Optimization Model ◽  
Software Package ◽  
Dimensional Synthesis ◽  
Motion Generation ◽  
Analysis Software ◽  
Order Branch ◽  
Indefinite Number ◽  
Cylindrical Joint ◽  
Circuit Defects ◽  
Defect Elimination

A general optimization model for the dimensional synthesis of defect-free revolute-cylindrical-cylindrical-cylindrical joint (or RCCC) motion generators is formulated and demonstrated in this work. With this optimization model, the RCCC dimensions required to approximate an indefinite number of precision positions are calculated. The model includes constraints to eliminate order branch and circuit defects—defects that are common in dyad-based dimensional synthesis. Therefore, the novelty of this work is the development of a general optimization model for RCCC motion generation for an indefinite number of precision positions that simultaneously considers order, branch, and circuit defect elimination. This work conveys both the benefits and drawbacks realized when implementing the optimization model on a personal computer using the commercial mathematical analysis software package matlab.

On the evaluation of a general model for optimum revolute cylindrical cylindrical cylindrical path generation

2018 ◽  
Vol 42 (2) ◽  
pp. 156-163
Author(s):  
Wen-Tzong Lee ◽  
Jose Cosme ◽  
Kevin Russell
Keyword(s):  
Personal Computer ◽  
Mathematical Analysis ◽  
Optimization Model ◽  
Software Package ◽  
Path Generation ◽  
Dimensional Synthesis ◽  
Analysis Software ◽  
Order Branch ◽  
Circuit Defects ◽  
Defect Elimination

A general optimization model for the dimensional synthesis of defect free revolute cylindrical cylindrical cylindrical (RCCC) joint path generators is formulated, implemented and evaluated in this work. With this optimization model, RCCC dimensions required to approximate precision points are calculated. The model includes constraints to eliminate order, branch and circuit defects, which are common in dyad-based dimensional synthesis. Therefore, the originality of this work is the development of a general optimization model for RCCC path generation that simultaneously considers order, branch, and circuit defect elimination. This work demonstrates both the benefits and drawbacks realized when implementing the optimization model on a personal computer using the commercial mathematical analysis software package Matlab.

Modeling And Optimization Of The Construction Organization's Production Program

2020 ◽  
pp. 49-56
Keyword(s):  
Software Package ◽  
Target Function ◽  
Optimization Models ◽  
Labor Resource ◽  
Production Program ◽  
Construction Organizations ◽  
Source Data ◽  
Labor Resources ◽  
Construction Organization ◽  
Planning Production

In the article, the author considers the problems of complex algorithmization and systematization of approaches to optimizing the work plans of construction organizations (calendar plans) using various modern tools, including, for example, evolutionary algorithms for "conscious" enumeration of options for solving a target function from an array of possible constraints for a given nomenclature. Various typical schemes for modeling the processes of distribution of labor resources between objects of the production program are given, taking into account the array of source data. This data includes the possibility of using the material and technical supply base (delivery, storage, packaging) as a temporary container for placing the labor resource in case of released capacity, quantitative and qualification composition of the initial labor resource, the properties of the construction organization as a counterparty in the contract system with the customer of construction and installation works etc. A conceptual algorithm is formed that is the basis of the software package for operational harmonization of the production program ( work plans) in accordance with the loading of production units, the released capacities of labor resources and other conditions stipulated by the model. The application of the proposed algorithm is most convenient for a set of objects, which determines the relevance of its implementation in optimization models when planning production programs of building organizations that contain several objects distributed over a time scale.

New Features and Advanced Applications of Siroquant: A Personal Computer XRD Full Profile Quantitative Analysis Software Package

1991 ◽  
Vol 35 (A) ◽  
pp. 49-55 ◽  
Author(s):  
J.C. Taylor ◽  
R.A. Clapp
Keyword(s):  
Particle Size ◽  
Quantitative Analysis ◽  
Powder Diffraction ◽  
Personal Computer ◽  
Software Package ◽  
Original Description ◽  
Analysis Software ◽  
Full Profile ◽  
Phase Quantification ◽  
Advanced Applications

AbstractSIROQUANT is a suite of personal ccmputer programs which runs on an IBM-compatible 386 or 486 personal computer, and gives phase quantification of mineral samples hy Rietveld refinement using the full XRD profile. Eight phases can be quantified in a mineral with the 640 K RAM version and 11 in the EM version.New features have been added since the original description was written (J.C. Taylor, Powder Diffraction, 6, 2, 1991) including calculations of amorphous percentages using spiked samples, particle size calculations, use of “measured” as well as calculated patterns as standards, pre-programmed refinement “Stages” with different variables in each stage, and improved menus.Some advanced applications of the system using these new features are described.

scholarly journals Using CCD’s in Introductory-Level College Astronomy Laboratories

1990 ◽  
Vol 105 ◽  
pp. 142-144
Author(s):  
Thomas J. Balonek
Keyword(s):  
Dark Current ◽  
Software Package ◽  
Multiple Access ◽  
Ccd Camera ◽  
Analysis Software ◽  
Camera System ◽  
Black And White ◽  
Standard Data ◽  
College Astronomy ◽  
Cooled Ccd

Our university recently purchased a liquid-nitrogen-cooled CCD camera system (from Photometrics Ltd., Tucson, Arizona) which has been installed on our campus’ 40-cm multiple access (Cassegrain/Newtonian) telescope. Images are reduced online at the observatory using Photometrics’ microcomputer-based analysis software package, which includes operations for standard data acquisition and initial stages of data reduction — including corrections for bias, dark current, and flat fielding. Images are displayed on a 256-level-gray-scale black and white monitor. Additional post-processing can be done either on the CCD system’s computer at the observatory or on IBM-AT/PC’s located both at the observatory and in the laboratory.

Using of Validated Software for Uncertainty Analyses Tools in Accredited Laboratories

2008 ◽  
Vol 381-382 ◽  
pp. 599-602 ◽  
Author(s):  
O. Velychko
Keyword(s):  
Uncertainty Analysis ◽  
Software Package ◽  
International Standards ◽  
Measuring Instruments ◽  
Analysis Software ◽  
Testing Laboratories ◽  
Software Packages ◽  
Uncertainty Of Measurements ◽  
Accredited Laboratories ◽  
Uncertainty Analyses

According to international standards the accredited calibration and testing laboratories are required to use reliable measuring instruments and to estimate an uncertainty of measurements. The variety of software tools and the different approaches taken will almost certainly ensure that for each laboratory there is a software package which will meet the needs. In this paper, several a software packages are made according to their validation for comparison. Briefly general principles of validating uncertainty analysis software packages are described. Briefly used validation methods are described.

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