Sunday, 14 April 2013

Computer Engineering Structures


A. Not Just A Tool 
Which means that the computer is a tool that counters the first
developed for the fields of science and engineering. Only now has
growing increasingly distant, not only counters, but also writers,
painter, and entertainers with video and sound governance, as well as others.
Associated with construction or structural engineering, or rather structural
Computer engineering is the main task of the counter as
The initial purpose tools created, that of the origin of the word to compute.
However, in contrast with a previous count, the computer turns
change the mindset of the workings of engineers in performing structural analysis.
If the previous tradition, in order to understand the behavior of structures with
true, it must understand the methods of calculation manual
done, but with the availability of computers for analysis of the structure, then
without knowing the methods used, engineers can easily and
quickly obtain the desired results. In addition, various structural models
can easily be made, including the necessary mathematical manipulations.
Even so, there is no guarantee that it all makes
engineers can understand the behavior of the actual structure due to the
need to 
(a) understand the basic assumptions of the analysis, 

(b) understand the behavior of the structuretrue; 

(c) able to model the structure and validation results.
To the field of computer engineering is a very useful tool, for
competent users, it can produce a deeper understanding
about the field of engineering problems, in which traditional techniques
previously unable or difficult to get.


B. Basic Principles of Structural Modeling

Modeling the structure of data is numerical (mathematical) represent
real structure is used as input computer data. MacLeod (1990)
should propose the structure modeling are:
1. Do not be too complicated than necessary. If the model can be made
simple but representative, then generally it will be useful.

2. In relation to the above, in modeling sometimes need some
stages of the model. There is a whole (macro model) and other
in certain parts of the course but more detail (micro-models). Do not
willing to make the overall model accuracy
same for every desired detail 

3. Is simple model but still representative, it is necessary to know
behavior of the real structure. What factors are primary, secondary or
can be ignored. There is no guarantee that a lot of factors, the results
the better (lower bound theorem). Example, if the calculated bending deformation
the truss structure (truss), the trunk needs to size
are more likely to withstand axial and bending at the same time (more wasteful).

4. Do not immediately believe the computer output, unless it has been
validation-validation conducted a careful and rigorous (a priori).

5. Although there has been a rigorous validation-validation, do not be too trusting
first. View the assumptions used in the modeling analysis,
whether it is logical and represents real structural conditions (alert).

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