Optimization of Damping Treatment in the Car Design Process Using Advanced Simulation Techniques

1995 ◽  
Author(s):  
Hinne Bloemhof
Keyword(s):  
Design Process ◽  
Simulation Techniques

scholarly journals Barriers for Virtual Assessment of Structural Robustness

2019 ◽  
Author(s):  
Tim Brix Nerenst ◽  
Martin Ebro ◽  
Morten Nielsen ◽  
Tobias Eifler ◽  
Kim Lau Nielsen
Keyword(s):  
Finite Element Analysis ◽  
Design Process ◽  
Robust Design ◽  
Element Analysis ◽  
Material Parameters ◽  
Simulation Techniques ◽  
Combined Use ◽  
Mechanical Products ◽  
Sensitivity Studies ◽  
Substantial Effort

Abstract Simulation techniques such as Finite Element Analysis (FEA) have substantially contributed to reducing the time and cost of developing new mechanical products over the last decades. However, FEA is primarily carried out on the nominal geometry, i.e. not considering the variation in geometrical and material parameters that originates from either the production or use-cases. This can lead to either overly conservative or overly optimistic designs, which in turn leads to unnecessary cost and/or unforeseen product failures. Despite the introduction of commercial FEA tool packages (such as 3DX/Abaqus/ANSYS etc.) that enables designers and engineers to combine FEA and Robust Design (RD) methods, performing sensitivity studies to identify robustness issues is rarely conducted in a systematic manner. The objective of this study is to identify the barriers for why the combined use of FEA and robust design techniques are not a standard part of the design process. The study concludes on identified barriers and that combining FEA and RD will require a substantial effort, however create significant value and enhance the design process.

Image Analysis of Intramembrane Particles in Freeze-Fractured Biomembranes Using Computer Simulation Techniques

1975 ◽  
Vol 33 ◽  
pp. 214-215
Author(s):  
D.J. Benefiel ◽  
R.S. Weinstein
Keyword(s):  
Membrane Proteins ◽  
Freeze Fracture ◽  
Integral Membrane Proteins ◽  
Systematic Evaluation ◽  
Intramembrane Particles ◽  
Modeling Methods ◽  
Simulation Techniques ◽  
Freeze Fracture Electron Microscopy ◽  
Fracture Electron ◽  
Computer Simulation Techniques

Intramembrane particles (IMP or MAP) are components of most biomembranes. They are visualized by freeze-fracture electron microscopy, and they probably represent replicas of integral membrane proteins. The presence of MAP in biomembranes has been extensively investigated but their detailed ultrastructure has been largely ignored. In this study, we have attempted to lay groundwork for a systematic evaluation of MAP ultrastructure. Using mathematical modeling methods, we have simulated the electron optical appearances of idealized globular proteins as they might be expected to appear in replicas under defined conditions. By comparing these images with the apearances of MAPs in replicas, we have attempted to evaluate dimensional and shape distortions that may be introduced by the freeze-fracture technique and further to deduce the actual shapes of integral membrane proteins from their freezefracture images.

Σ =13 tilt grain boundary in silicon bicrystal

1990 ◽  
Vol 48 (4) ◽  
pp. 562-563
Author(s):  
M.J. Kim ◽  
Y.L. Chen ◽  
R.W. Carpenter ◽  
J.C. Barry ◽  
G.H. Schwuttke
Keyword(s):  
Grain Boundary ◽  
Grain Boundaries ◽  
Rotation Axis ◽  
Czochralski Method ◽  
High Resolution Electron Microscopy ◽  
Image Simulation ◽  
Simulation Techniques ◽  
Resolution Electron ◽  
The Common ◽  
Tilt Grain Boundary

The structure of grain boundaries (GBs) in metals, semiconductors and ceramics is of considerable interest because of their influence on physical properties. Progress in understanding the structure of grain boundaries at the atomic level has been made by high resolution electron microscopy (HREM) . In the present study, a Σ=13, (510) <001>-tilt grain boundary in silicon was characterized by HREM in conjunction with digital image processing and computer image simulation techniques.The bicrystals were grown from the melt by the Czochralski method, using preoriented seeds. Specimens for TEM observations were cut from the bicrystals perpendicular to the common rotation axis of pure tilt grain boundary, and were mechanically dimpled and then ion-milled to electron transparency. The degree of misorientation between the common <001> axis of the bicrystal was measured by CBED in a Philips EM 400ST/FEG: it was found to be less than 1 mrad. HREM was performed at 200 kV in an ISI-002B and at 400 kv in a JEM-4000EX.

Investigating the Value of Process Books in the Design Process Using Cognitive Load Theory

2013 ◽  
Author(s):  
Lori B. Stone ◽  
Abigail Lundquist ◽  
Stefan Ganchev ◽  
Nora Ladjahasan
Keyword(s):  
Cognitive Load ◽  
Design Process ◽  
Cognitive Load Theory ◽  
Load Theory

Developing design literacy through brand-based artefacts

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Catarina LELIS
Keyword(s):  
Empirical Study ◽  
Focus Groups ◽  
Design Process ◽  
Basic Design ◽  
Willingness To Participate ◽  
Socially Responsible ◽  
Interaction Structure ◽  
Functional Prototype ◽  
High Willingness

The brand is a powerful representational and identification-led asset that can be used to engage staff in creative, sustainable and developmental activities. Being a brand the result of, foremost, a design exercise, it is fair to suppose that it can be a relevant resource for the advancement of design literacy within organisational contexts. The main objective of this paper was to test and validate an interaction structure for an informed co-design process on visual brand artefacts. To carry on the empirical study, a university was chosen as case study as these contexts are generally rich in employee diversity. A non-functional prototype was designed, and walkthroughs were performed in five focus groups held with staff. The latter evidenced a need/wish to engage with basic design principles and high willingness to participate in the creation of brand design artefacts, mostly with the purposeof increasing its consistent use and innovate in its representation possibilities, whilst augmenting the brand’s socially responsible values.

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