R Lang &
Associates
Aviation
The concept of flying has
taken root only within the past 120 years or so,
when the Wright brothers were credited for the
first controlled manned flight in 1903 at Kitty
Hawk, NC. It has since grown into a full-fledged system of
transportation, some marveling over the direction it has taken
in providing routine flights around the world in luxury
airliners.
The development of commercial aviation
has occasionally pointed to a concern regarding
the safety of large jetliners carrying numerous
passengers. It has experienced numerous trials incurring devastation
from
ice, wind, volcanic ash, and birds. Although the
absolute design of today's aircraft may still be less
than one-hundred percent settled,
statistically it is ten times safer than taking
a train, and nineteen times safer than driving a
car.
The design and development of
aircraft involve many branches of engineering and applied
science. It is primarily composed of an airframe, various
flight systems, and a powerplant. The airframe may be a
designed of aluminum alloys, titanium, and composites as a means
to reduce weight. Major studies involving mathematical
models are used to determine flight loads on an aircraft which
in turn provide information for yet another mathematical study
of determining the internal loads, or stresses. Further
stress analysis is then incorporated to
determine all the remaining pathways of forces
until every remaining structural member, bolt, and rivet has
been
accounted for.
Mathematical modeling is a
term used in trade, derived from a complex field
of numerical methods. Numerical methods, or
numerical analysis, has its origins since the
days of Gauss and Newton. It has progressed
through the efforts of mathematicians and
engineers into workable and impressive
mathematical modeling techniques, one of these
which is called the Finite Element Method. During
the process of carrying out this method,
calculations in the thousands are made using a
math-based microprocessor, or modern day
computer.