scholarly journals Optimal design of an optical length of a rod with the given mass

2007 ◽  
Keyword(s):  
Optimal Design ◽  
Optical Length ◽  
The Given

scholarly journals THE STATIC OPTIMIZATION TASK OF OPTIMAL DESIGN OF NONLINEAR ELECTRONIC SCHEME

2019 ◽  
pp. 109-115
Author(s):  
Didmanidze Ibraim ◽  
Donadze Mikheil
Keyword(s):  
Optimal Design ◽  
Optimality Criteria ◽  
Pareto Optimal Solutions ◽  
Optimal Solutions ◽  
Design Task ◽  
Optimization Task ◽  
Minimum Capacity ◽  
Optimal Values ◽  
The Given ◽  
Selection Of

The article deals with such an important selection of the elements of electronic scheme of the given configuration, when the certain requirements of technical task are satisfied and at the same time the selected optimality criteria reach the extreme value. The gives task has been solved by the method of one-criterion optimization, in particular, the method of center gravity. To formalize the given scheme we have compiled a mathematical model of optimization, which considers the requirements of technical task. The optimal design task of the presented electronic scheme was brought to the task of multi criteria optimization. The computational experiments have been resulted in the Pareto-optimal solutions, from which there was selected a compromise on that corresponds to the minimum capacity, required by the scheme. According to the optimal values of resistors, we have conducted a computerized analysis of the transient process of the given electronic scheme with the help of a computer program Electronics Workbench.

scholarly journals Methodology of technological and operational factors accounting in the process of complex optimal design of microand nanodevices manufactured using group technologies

2018 ◽  
Vol 224 ◽  
pp. 02094
Author(s):  
Sergey Meshkov
Keyword(s):  
Optimal Design ◽  
Group Technology ◽  
Design Stage ◽  
Time To Failure ◽  
Serial Production ◽  
Operation Conditions ◽  
Optimal Balance ◽  
Operational Factors ◽  
The Given ◽  
Production Conditions

The problem of providing key quality indicators (indicators of purpose, manufacturability, reliability) of micro-and nanodevices at the design stage is considered. The limitations imposed by a group technology production on methods ensuring serial production availability and reliability of micro- and nanodevices are described. The design of micro-and nanodevices methodology that allows to ensure the optimal balance between serial production availability in the given production conditions and time to failure in the specified operation conditions under given restrictions on the device purpose indicators by taking into account the technological and operational factors is described.

Considerations for Finding the Optimal Design Parameters for a Novel Pole Climbing Robot

2008 ◽  
Author(s):  
Gabriel Goldman ◽  
Dennis Hong
Keyword(s):  
Optimal Design ◽  
Central Body ◽  
Design Parameters ◽  
Future Research ◽  
Climbing Robot ◽  
Serial Chain ◽  
Allowable Range ◽  
The Given ◽  
Selection Of ◽  
Do So

HyDRAS (Hyper-redundant Discrete Robotic Articulated Serpentine) is a novel serpentine robot comprising a serial chain of actuated universal joints for climbing structures such as poles or scaffoldings. To do so, it wraps its body around the structure in a helical shape, and rotates its body along its own central body axis to roll up the structure. This paper presents a method and considerations for selecting the optimal design parameters for the development of HyDRAS. The geometry equations derived in this paper will allow for a parametric approach that will aid in the selection of the appropriate design parameters such as module length, module diameter, helical pitch, and allowable range of motion for the given task of climbing pole like structures. Several examples are used to illustrate the method. The results obtained will be used in the analysis of the mechanical advantage of the mechanism and future research on the motion planning of HyDRAS.

scholarly journals Optimal Design of Three-Link Planar Manipulators Using Grashof's Criterion

Robotics ◽  
2013 ◽  
pp. 595-607
Author(s):  
Sarosh H. Patel ◽  
Tarek Sobh
Keyword(s):  
Optimal Design ◽  
Simple Algorithm ◽  
Work Piece ◽  
Performance Parameters ◽  
Simple Assumption ◽  
Planar Manipulators ◽  
Closed Chain ◽  
And Performance ◽  
Task Placement ◽  
The Given

The design of robotic manipulators is dictated by a set of pre-determined task descriptions and performance parameters. These performance parameters are often defined in terms of workspace dexterity, manipulability, and accuracy. Many serial manipulator applications require that the manipulator have full dexterity about a work piece or a pre-defined trajectory, that is, to approach the given point within the workspace with all possible orientations about that point. Grashof's criterion defines the mobility of four-link closed chain mechanisms in relation to its link lengths. A simple assumption can convert a three-link serial manipulator into a four-link closed chain so that its mobility can be studied using Grashof's criterion. With the help of Grashof's criterion, it is possible not only to predict and simulate the mobility of a manipulator during its design, but also to map and identify the fully-dexterous regions within its workspace. Mapping of the dexterous workspace is helpful in efficient task placement and path planning. Next, the authors propose a simple algorithm using Grashof's criterion for determining the optimal link lengths of a three-link manipulator, in order to achieve full dexterity at the desired regions of the workspace. Finally, the authors test the generated design by applying joint angle limitations.

Optimal design of optical length in low turbidity measurement system with wavelength 1310 nm and 1550 nm

2014 ◽  
Author(s):  
Hui-bin Cao ◽  
Jian-guo Liu ◽  
Hua-qiao Gui ◽  
Jie Wang ◽  
Huan-qin Wang
Keyword(s):  
Optimal Design ◽  
Measurement System ◽  
Optical Length ◽  
Turbidity Measurement

Study on Optimal Design of Case Ejector Mechanism of Tank Autoloader Based on Kinematical Simulation

2013 ◽  
Vol 312 ◽  
pp. 191-195
Author(s):  
Ya Ning Chen
Keyword(s):  
Optimal Design ◽  
Simulation Model ◽  
Computer Technology ◽  
Transmission Factor ◽  
Modern Computer ◽  
Linkage Design ◽  
Novel Method ◽  
The Given ◽  
Modern Computer Technology ◽  
Kinematical Simulation

To make optimal design of case ejector mechanism easier and more efficiency, a novel method based on kinematical simulation and combining modern computer technology with the features of traditional linkage design is presented. By analyzing transmission state of double-rocker mechanism of ejector, establishing a kinematical simulation model and determining the appropriate data of the mechanism, a designer could easily design a case ejector satisfying all the requirements on movement or trajectory in the given conditions. Meanwhile, the transmission factor of the mechanism is highly increased. The results from optimal design of the case ejector of certain type of tank show that the transmission factor of the mechanism is increased by 58.4%.

Optimal Design of Three-Link Planar Manipulators Using Grashof’s Criterion

2012 ◽  
pp. 70-83 ◽  
Author(s):  
Sarosh R. Patel ◽  
Tarek Sobh
Keyword(s):  
Optimal Design ◽  
Simple Algorithm ◽  
Work Piece ◽  
Performance Parameters ◽  
Simple Assumption ◽  
Planar Manipulators ◽  
Closed Chain ◽  
And Performance ◽  
Task Placement ◽  
The Given

The design of robotic manipulators is dictated by a set of pre-determined task descriptions and performance parameters. These performance parameters are often defined in terms of workspace dexterity, manipulability, and accuracy. Many serial manipulator applications require that the manipulator have full dexterity about a work piece or a pre-defined trajectory, that is, to approach the given point within the workspace with all possible orientations about that point. Grashof’s criterion defines the mobility of four-link closed chain mechanisms in relation to its link lengths. A simple assumption can convert a three-link serial manipulator into a four-link closed chain so that its mobility can be studied using Grashof’s criterion. With the help of Grashof’s criterion, it is possible not only to predict and simulate the mobility of a manipulator during its design, but also to map and identify the fully-dexterous regions within its workspace. Mapping of the dexterous workspace is helpful in efficient task placement and path planning. Next, the authors propose a simple algorithm using Grashof’s criterion for determining the optimal link lengths of a three-link manipulator, in order to achieve full dexterity at the desired regions of the workspace. Finally, the authors test the generated design by applying joint angle limitations.

Numerical and Analytical Investigations of Nonlinear Synthesis Problems of Antenna with the Flat Radiating Aperture

2016 ◽  
Vol 7 ◽  
pp. 18 ◽  
Author(s):  
Petro Olexandrovych Savenko
Keyword(s):  
Optimal Design ◽  
Review Article ◽  
Two Dimensional ◽  
Nonlinear Integral Equations ◽  
Energy Characteristics ◽  
Nonlinear Spectral Problem ◽  
Set Of Points ◽  
The Given ◽  
Branching Solutions ◽  
Specific Synthesis

The review article contains results of researches of the synthesis problems of radiating systems with incomplete input information arising in particular during optimal design of radio, acoustic or other types of radiating systems (RS) by the given requirements to energy characteristics of radiated field. In mathematical terms, these tasks are reduced to study and nume­rical solution of one class of two-dimensional nonlinear integral equations of Hammerstein type that depend on two real para­meters. It was established that a characteristic feature of this class of equations is nonuniqueness and the branching (or bifur­cation) of existing solutions. Methods of solving two-parametric nonlinear spectral problem, which is necessary to finding the set of points of branching are proposed. Algorithms and numerical methods for the finding of branching solutions are built and founded. Numerous examples of specific synthesis problems are presented.

Personal Problem Solving of Partners in Divorce Proceedings

2015 ◽  
Vol 36 (1) ◽  
pp. 82-103 ◽  
Author(s):  
Tereza Soukupova ◽  
Petr Goldmann
Keyword(s):  
Gender Differences ◽  
Problem Solving ◽  
Thematic Apperception Test ◽  
Scoring Systems ◽  
Personal Control ◽  
Personality Characteristics ◽  
Personal Problem ◽  
Thematic Apperception ◽  
And Gender ◽  
The Given

Abstract. The Thematic Apperception Test is one of the most frequently administered apperceptive techniques. Formal scoring systems are helpful in evaluating story responses. TAT stories, made by 20 males and 20 females in the situation of legal divorce proceedings, were coded for detection and comparison of their personal problem solving ability. The evaluating instrument utilized was the Personal Problem Solving System-Revised (PPSS-R) as developed by G. F. Ronan. The results indicate that in relation to card 1, men more often than women saw the cause of the problem as removable. With card 6GF, women were more motivated to resolve the given problem than were men, women had a higher personal control and their stories contained more optimism compared to men’s stories. In relation to card 6BM women, more often than men, used emotions generated from the problem to orient themselves within the problem. With card 13MF, the men’s level of stress was less compared to that of the women, and men were more able to plan within the context of problem-solving. Significant differences in the examined groups were found in those cards which depicted significant gender and parental potentials. The TAT can be used to help identify personality characteristics and gender differences.

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