Computer-aided design of molecular machines: Techniques, paradigms and difficulties

2021 ◽  
Author(s):  
Haohao Fu ◽  
Xueguang Shao ◽  
Wensheng Cai
Keyword(s):  
Computer Aided Design ◽  
Molecular Machines ◽  
The Past ◽  
Wide Range ◽  
Computer Aided ◽  
Aided Design

With the development in the past decade, molecular machines, which achieve specific tasks by responsing to external stilmuli, are gradually regarded as powerful tools for a wide range of applications,...

Study on Application of CAD Used in Visual Advertising Design

2014 ◽  
Vol 571-572 ◽  
pp. 768-771
Author(s):  
Jun Liu
Keyword(s):  
Computer Aided Design ◽  
Television Advertising ◽  
Paper Study ◽  
Application Technology ◽  
Visual Effects ◽  
3D Technology ◽  
Wide Range ◽  
Computer Aided ◽  
Visual Impact ◽  
Aided Design

The 3D technology currently has in various engineering fields have a wide range of applications, all the 3D visual effects technology can bring us visual impact, the use of 3D technology produced by the television advertising more easily accepted by the audience, this paper study on the 3D computer-aided design advertising design application technology.

Optimization of Heave Motions for a Four Column Semi-Submersible Based on Genetic Algorithm

2018 ◽  
Author(s):  
Suji Zhu
Keyword(s):  
Genetic Algorithm ◽  
Global Optimization ◽  
Computer Aided Design ◽  
Transfer Functions ◽  
Parametric Modelling ◽  
Optimal Solutions ◽  
Global Optimization Algorithm ◽  
The Past ◽  
Computer Aided ◽  
Aided Design

Semi-submersible is designed with low heave motions compared with conventional ships by utilizing the cancelation effects between pontoons and columns. During the past years, continuous efforts have been devoted to reducing the heave amplitudes considering utilizing dry-tree system. Different concepts of semi-submersible have been proposed with favorable heave response. Deep draft semi-submersibles have been proved to be efficient in reducing the heave motions, and the damper structures under the pontoon may also reduce the heave responses significantly. Those concepts are beyond the conventional semi-submersible design, which may bring high costs for fabrication and installations. During computer-aided design and analysis, optimization algorithms are used to search for the optimal hull configuration. However, due to the restrictions of computer capacities, the global optimization algorithm, in some cases, have difficulties in finding out the optimal solutions without the aid from engineering experience. In this paper, the geometry of a ring-pontoon four-column semi-submersible is generated by parametric modelling. The heave transfer functions at center of gravity are calculated using WADAM. Genetic algorithm is used to find the most favorable heave responses. In the end, the parameters that influence the heave motions are summarized and discussed.

Designing Technique Transfer of Dan Kwian Pottery Products

2018 ◽  
Vol 766 ◽  
pp. 40-43
Author(s):  
Chon Yeenang ◽  
Onlamee Kamon In
Keyword(s):  
Computer Aided Design ◽  
Skin Color ◽  
Research Method ◽  
Development Pattern ◽  
Participatory Action ◽  
The Past ◽  
Area 7 ◽  
Computer Aided ◽  
Aided Design ◽  
Cart Model

The development of Dan Kwian pottery products is a research that uses participatory action research methodology and qualitative research method. By selecting a specific sampling in area 7, Dan Chai Community, Dan Kwian District, Muang, Nakhon Ratchasima Province, Thailand. The objective of this research three reasons: 1) the study form and evolution of Dan Kwian pottery products. 2) the development of Dan Kwian pottery products to form individually. 3) To study the satisfaction of entrepreneurs and consumers towards Dan Kwian pottery products. The research found that the model of Dan Kwian pottery products in the past to convey the wisdom of the grandparents emphasize the usefulness rather than beauty. At present, the style of Dan Kwien pottery products has been designed in a popular fashion and computer aided design. The pottery have a variety of uses and beauty than in the past. The Dan kwian pottery product was development pattern to form a new identity. The five models was selected: two cat models, one peacock model, one owl model and one cart model to from fifty models. The researcher was introduced five new pottery products to assess the satisfaction of four entrepreneurs and thirty consumers. It was found that the pattern of the pottery is unique has average of entrepreneurs was 4.75, while the consumer has average of 4.13. The uniqueness of skin color has average of entrepreneurs was 4.75, while the consumer has average of 4.00. The beauty of the new pottery has average of entrepreneurs was 5.00, while the consumer has average 4.27. The useful for function of the pottery has average of entrepreneurs was 5.00, while the consumer has average of 4.70.

Application of Advertising Based on Computer Aided Visual Design

2014 ◽  
Vol 889-890 ◽  
pp. 125-129
Author(s):  
Wei Xiao
Keyword(s):  
Computer Technology ◽  
Computer Aided Design ◽  
Paper Analysis ◽  
Visual Design ◽  
Visual Effects ◽  
Wide Range ◽  
Computer Aided ◽  
Visual Impact ◽  
Technical Features ◽  
Aided Design

The 3D computer technology has a wide range of applications currently, with various engineering fields. All 3D visual effects can bring us visual impact, the use of 3D computer technology produced by advertising more easily accepted by the audience, this paper discuss the 3D computer-aided design advertising and its application. The paper analysis 3D advertising purposes and applications range scale, the application of technical features and style.

Application of Computer-Aided Visual in Advertising Design

2013 ◽  
Vol 475-476 ◽  
pp. 1517-1521
Author(s):  
Qing Gang Yang ◽  
Meng Zhang ◽  
Chang Xiao
Keyword(s):  
Computer Technology ◽  
Computer Aided Design ◽  
Three Dimensional ◽  
Television Advertising ◽  
Application Technology ◽  
Visual Effects ◽  
Wide Range ◽  
Computer Aided ◽  
Visual Impact ◽  
Aided Design

The three-dimensional computer technology currently has in various engineering fields have a wide range of applications, all the three-dimensional visual effects technology can bring us visual impact, the use of three-dimensional computer technology produced by the television advertising more easily accepted by the audience, this thesis in the three-dimensional computer-aided design advertising design application technology.

scholarly journals Computer-aided design system for vibration-frequency density meters

2021 ◽  
pp. 33-39
Author(s):  
Olga Oliynyk ◽  
Yurі Taranenko
Keyword(s):  
Vibration Frequency ◽  
Computer Aided Design ◽  
Free Vibrations ◽  
Operating Conditions ◽  
Design System ◽  
Bending Vibrations ◽  
Software Complex ◽  
Wide Range ◽  
Computer Aided ◽  
Aided Design

The article is devoted to the description of the developed automated design system for vibration-frequency density meters with a demonstration of the wide functionality of the program and interface settings. The development solves the problem of designing vibration-frequency density meters, calculating the quality factor and sensitivity of resonators, which provide the dependence of the frequency of self-oscillations on the controlled density. The lack of clear methodological recommendations for calibration, correction techniques for different methods of mounting the resonator significantly limits the use of vibration-frequency density meters, since the tasks set require special skills, competencies of both developers and personnel during operation. The algorithm of the developed software package is based on the calculation of the amplitude-frequency characteristics of a tubular resonator using a differential equation to determine the frequencies and forms of bending vibrations of a tubular resonator. The software implementation of the developed calculation model makes it possible not only to visualize the shapes, frequency, antinodes and vibration nodes of a tubular resonator of any design and a wide range of materials, but also takes into account the type of fastening, the numerical value of the support stiffness, makes it possible to adjust the placement of supports that meets the operating conditions while visualizing the shapes oscillations, simulate the distribution of sensitivity along the entire measurement range. The developed computer-aided design system has a simple and clear interface, and the absence of the necessary software installation and settings makes the product more accessible in the industrial environment of small enterprises. When using a subroutine for the numerical solution of the equation of free vibrations of a string, the software complex can be used to design string mechanical resonators of vibration-frequency sensors.   Keywords: vibration-frequency density meter; resonator; amplitude and frequency of oscillations; fixing conditions; antinode; sensitivity

scholarly journals The Expression of Architectural Decoration Engineering Design Effect Based on Computer Aided Software

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Gou Zenghui
Keyword(s):  
Engineering Design ◽  
Computer Technology ◽  
Computer Aided Design ◽  
Production Model ◽  
Wide Range ◽  
Computer Aided ◽  
Great Progress ◽  
Original Product ◽  
Knowledge Intensive ◽  
Aided Design

Abstract: In the 21st century,the domestic economic level has been improved rapidly.At the same time, it has made great progress in the field of building decoration engineering. The building decoration industry has the characteristics of a knowledge-intensive, highly comprehensive and large-scale investment. With the progress of society, architectural decoration design tools have also been with the progress in the building decoration engineering computer-aided design of a wide range of popular applications, change the original product design and production model, the formation of a new architectural decoration engineering design model,which is the biggest change in the decoration industry. For example, the computer technology used in architectural design work, the use of computer technology to collect the corresponding reference materials and computer-aided design to replace the traditional hand-painted and soon. Computer graphics softwarehas the advantages of reasonable layout, easy modification and convenient storage. Thus,computer-aided software is applied in the field of architectural decoration engineering design,which drives the design of building decoration engineering to a higher level. The application of computer aided software can fully reflect its important role in the design of architectural decoration engineering.

scholarly journals Numerical Analysis of Semi-Tangential Ogive Bullet

2021 ◽  
Vol 9 (8) ◽  
pp. 1869-1883
Author(s):  
Avinash T
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Numerical Analysis ◽  
Computer Aided Design ◽  
Steady Increase ◽  
The Past ◽  
Computer Aided ◽  
Parametric Studies ◽  
Computational Fluid Dynamics Cfd ◽  
Aided Design

Abstract: The objective of the present study is to design and analyze semi-tangential ogive bullets using simulatation software such as Computer-aided design & Computational Fluid Dynamics (CFD). It is observed that been a quite steady increase in the bullet research design in the past few decades. The nose section of ballistic bullet is the most important part of the design process. Hence design optimizations are achieved by adjusting the bullet's form to improve precision and stability by reducing its drag force. CFD is the study used to verify the findings. Since provides most accurate results. It is observed that present study optimizes the behavior of the at M= 2.5. This present work shows the flow of air around the bullet surface providing pressure & velocity contours at every segment. The Various parametric studies over bullet model are drag co-efficient, ballistic coefficient and turbulence viscosity are plotted’.

Computer-Aided Design Procedure for Laminar Fluidic Systems

1975 ◽  
Vol 97 (4) ◽  
pp. 373-382 ◽  
Author(s):  
T. M. Drzewiecki ◽  
D. N. Wormley ◽  
F. M. Manion
Keyword(s):  
Computer Aided Design ◽  
Design Procedure ◽  
Control System Design ◽  
Static And Dynamic Characteristics ◽  
Laminar Jet ◽  
Wide Range ◽  
Computer Aided ◽  
Fluid Properties ◽  
Rate Sensor ◽  
Aided Design

This paper presents a computer aided procedure for the design of laminar proportional fluid amplifiers and gain blocks. The procedure is based upon a fundamental analysis of the flow regimes in an amplifier. With the aid of a computer, amplifier static and dynamic characteristics, required in control system design, may be determined as a function of geometry and fluid properties. The procedure is illustrated and evaluated by comparison of predicted design and experimentally measured performance. The procedure has been applied to individual elements designed by three different organizations, multistage gain blocks, and laminar jet rate sensor preamplifiers. The results of the procedure are shown to be quite accurate over a wide range of amplifier geometries (eleven different amplifiers with aspect ratio from 0.25 to 3 – a range of 12 to 1 – and nozzle sizes from 0.5 to 10 mm) and operating fluids (both air and oil). Experimental measurements were within 10 percent of the design predictions for amplifier gains, operating resistances, and bandwidth for all examples investigated.

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