XML Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Pasandidehpor M, Shariyat M. Multi-objective design optimization for crash safety of a vehicle with a viscoelastic body and wide tapered multi-cell energy absorber using DOE method . IJAE. 2017; 7 (3)
URL: http://www.iust.ac.ir/ijae/article-1-411-en.html

Abstract:   (50 Views)
Due to the extensive use of cars and progresses in the vehicular industries, it has become
necessary to design vehicles with higher levels of safety standards. Development of the computer
aided design and analysis techniques has enabled employing well-developed commercial finiteelement-based
crash
simulation
computer
codes,
in
recent
years.
The
present
study
is
an
attempt

to
optimize
behavior
of
the
structural
components
of
a
passenger
car
in
a
full-frontal
crash
through

including
three
types
of
energy
absorptions:
(i)
structural
damping
of
the
car
body,
(ii)
viscoelastic

characteristics
of
the
constituent
materials
of
the
bumper,
and
(iii)
a
proposed
wide
tapered
multicell

energy absorber. The optimization technique relies on the design of experimental (DOE)
method to enables finding the absolute extremum solution through the response surface method
(RSM) in MINITAB software. First, the car is modeled in PATRAN and meshed in ANSA
software. Then, the full-scale car model is analyzed in ABAQUS/CAE software. The optimization
has been accomplished through a multi-objective function to simultaneously, maximize the
observed energy and minimize the passenger’s deceleration. Results are verified by the
experimental results and effects of using non-equal importance coefficients for the absorbed
energy and passenger’s deceleration in the multi-objective function are also evaluated. Influence
of the optimized parameters on the frontal crash behavior of the vehicle body structure and
passenger’s deceleration is investigated, too
     
Type of Study: Research | Subject: General
Received: 2017/10/4 | Accepted: 2017/10/4 | Published: 2017/10/4

Add your comments about this article : Your username or email:
Write the security code in the box

© 2015 All Rights Reserved | International Journal of Automotive Engineering

Designed & Developed by : Yektaweb