Computer Aided Design of the Thermal Environment

1989 ◽  
Vol 33 (8) ◽  
pp. 512-516 ◽  
Author(s):  
Kenneth C. Parsons
Keyword(s):  
Human Factors ◽  
Computer Aided Design ◽  
Thermal Environment ◽  
Human Response ◽  
Thermal Environments ◽  
Human Thermal Comfort ◽  
Computer Aided ◽  
Computer Based ◽  
Aided Design

The use in design, of knowledge and understanding of human thermal comfort, heat stress and cold stress, is often complex and time consuming. A computer based system (IBM-PC) was developed to allow human factors practitioners to assess and manipulate knowledge, data and simulations of human response to thermal environments, thus allowing computer aided design. A description of the system, its design and development and examples of its use are provided. The role of such systems in design and assessment should be considered by human factors practitioners.

scholarly journals Kinematic Modeling and Simulation of Human Arm Reach

2021 ◽  
Author(s):  
Mehrdad Zafari
Keyword(s):  
Computer Aided Design ◽  
Kinematic Modeling ◽  
Repetitive Tasks ◽  
Human Arm ◽  
Computer Aided ◽  
Computer Based ◽  
Human Operators ◽  
Aided Design ◽  
Workspace Design ◽  
Significant Attention

Modeling the human arm and calculation of the human arm reach are important for designing workspaces. An appropriate workspace design would reduce musculoskeletal disorders and wrist injuries in repetitive tasks. Among different human arm workspace designs and reach calculations, computer-based methods have recently attracted significant attention. This is because conventional experimental methods do not provide sufficient flexibility for interactive design modifications and integration of different aspects for workspace design. Despite advances in computer-aided design, many computer-based methods still rely on mock-ups and experimental set-ups. In this work, a computer-aided method is investigated for predicting the human arm reach. The kinematic modeling convention of Denavit-Hertenberg is adopted for formulating the reach. Simulation results are provided to demonstrate the effectiveness of the method. The methodology enables visualization of the reach volume of the human arm and could be easily adjusted for different human operators.

scholarly journals Kinematic Modeling and Simulation of Human Arm Reach

2021 ◽  
Author(s):  
Mehrdad Zafari
Keyword(s):  
Computer Aided Design ◽  
Kinematic Modeling ◽  
Repetitive Tasks ◽  
Human Arm ◽  
Computer Aided ◽  
Computer Based ◽  
Human Operators ◽  
Aided Design ◽  
Workspace Design ◽  
Significant Attention

Modeling the human arm and calculation of the human arm reach are important for designing workspaces. An appropriate workspace design would reduce musculoskeletal disorders and wrist injuries in repetitive tasks. Among different human arm workspace designs and reach calculations, computer-based methods have recently attracted significant attention. This is because conventional experimental methods do not provide sufficient flexibility for interactive design modifications and integration of different aspects for workspace design. Despite advances in computer-aided design, many computer-based methods still rely on mock-ups and experimental set-ups. In this work, a computer-aided method is investigated for predicting the human arm reach. The kinematic modeling convention of Denavit-Hertenberg is adopted for formulating the reach. Simulation results are provided to demonstrate the effectiveness of the method. The methodology enables visualization of the reach volume of the human arm and could be easily adjusted for different human operators.

Computer-Aided Laboratory Work to “Mechanism and Machine Science” Course

2007 ◽  
Author(s):  
Valentina V. Kuzlyakina ◽  
Marina V. Nagaeva
Keyword(s):  
Computer Aided Design ◽  
Laboratory Work ◽  
State University ◽  
Design Elements ◽  
Computer Aided ◽  
Teachers And Students ◽  
Structure Editor ◽  
Computer Based ◽  
Visual Structure ◽  
Aided Design

Laboratory work is an important element in engineering training, which should correspond to up-to-date tendencies in computer-based technologies in design, production, maintenance and preserving mechanisms. Computer-based laboratory work consists of 16 assignments. Seven assignments are carried out on laboratory stands, the remainder are provided on PC, using programs like “Visual Structure Editor”, “DYNAMO”, “APM Win Machine”. The system Visual Structure Editor (VSE) is designed by specialists of “Machine Mechanics and Computer-Aided Design” department, of the Maritime State University named after adm.G.I.NEVELSKOY, Vladivostok, under the direction of prof. Valentina V. Kuzlyakina. The system APM (Automated Projecting of Mechanism) is designed by the research-and-production centre “APM” under the direction of prof.V.Shelofast, from the city of Korolyov, Moscow area. These systems are multifunctional. They allow project different mechanical systems at the stage of structural and parametrical synthesis, carry out strength calculations and design elements of machines and mechanisms. They are good in operation. Teachers and students easily master the systems. Laboratory works with computer support allow students to pass from a concrete object to modeling on a PC, and to solve complex engineering tasks during the education process.

Computer aided design of organic superbases: the role of intramolecular hydrogen bonding

2002 ◽  
Vol 26 (10) ◽  
pp. 1329-1334 ◽  
Author(s):  
Borislav Kovačević ◽  
Zvonimir B. Maksić ◽  
Robert Vianello ◽  
Miljenko Primorac
Keyword(s):  
Hydrogen Bonding ◽  
Computer Aided Design ◽  
Intramolecular Hydrogen Bonding ◽  
Computer Aided ◽  
Intramolecular Hydrogen ◽  
Aided Design

scholarly journals The Role of 3D Printing and Computer Aided Design in Medicine at Healthcare Systems during Emergence of COVID-19

2020 ◽  
Vol 3 (8) ◽  
pp. 33-39
Author(s):  
Manas Chakraborty ◽  
Indranil Chatterjee ◽  
Toumica Ghosh ◽  
Sanchari Chatterjee ◽  
Suman Kumar Nath ◽  
...  
Keyword(s):  
3D Printing ◽  
Computer Aided Design ◽  
Healthcare Systems ◽  
Computer Aided ◽  
Aided Design

Integration of Measurements and Maneuvering Technologies Used to Modify Caisson

1993 ◽  
Vol 9 (03) ◽  
pp. 181-187
Author(s):  
Joseph Krulikowski ◽  
Peter Sparacino ◽  
Anthony Giordano
Keyword(s):  
Computer Aided Design ◽  
Design System ◽  
Accurate Data ◽  
Design Information ◽  
Large Structures ◽  
Final Assembly ◽  
Computer Aided ◽  
Computer Based ◽  
Dry Dock ◽  
Aided Design

The modification of the caisson in a dry dock is in many ways more difficult than conventional ship modifications. This is because of the accuracy required, location of the measurements, and the size of the structure. The development of computer-based multi-headed electronic theodolite systems made it possible to extract accurate data on large structures. These data were formatted so they could be input directly into a computer-aided design system. The multi-headed electronic theodolite system was used to transfer new design information directly to the structure. The caisson structure was modified and moved safely into position with the aid of a water castor system for final assembly. Final dimension checks verified the accuracy of the system.

scholarly journals 3-D simulation of posterior fossa reduction in Chiari I

2016 ◽  
Vol 74 (5) ◽  
pp. 405-408 ◽  
Author(s):  
Yvens Barbosa Fernandes ◽  
Pedro Fábio Mendonça Perestrelo ◽  
Pedro Yoshito Noritomi ◽  
Roger Neves Mathias ◽  
Jorge Vicente Lopes da Silva ◽  
...  
Keyword(s):  
Posterior Fossa ◽  
Computer Aided Design ◽  
3D Model ◽  
Normal Values ◽  
Volumetric Change ◽  
Computer Aided ◽  
Chiari I ◽  
Design Software ◽  
Aided Design

ABSTRACT We proposed a 3D model to evaluate the role of platybasia and clivus length in the development of Chiari I (CI). Using a computer aided design software, two DICOM files of a normal CT scan and MR were used to simulate different clivus lengths (CL) and also different basal angles (BA). The final posterior fossa volume (PFV) was obtained for each variation and the percentage of the volumetric change was acquired with the same method. The initial normal values of CL and BA were 35.65 mm and 112.66º respectively, with a total PFV of 209 ml. Ranging the CL from 34.65 to 29.65 – 24.65 – 19.65, there was a PFV decrease of 0.47% – 1.12% – 1.69%, respectively. Ranging the BA from 122.66º to 127.66º – 142.66º, the PFV decreased 0.69% – 3.23%, respectively. Our model highlights the importance of the basal angle and clivus length to the development of CI.

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