Int J Automot Technol Search

CLOSE


International Journal of Automotive Technology > Volume 8(3); 2007 > Article
International Journal of Automotive Technology 2007;8(3): 337-342.
MULTI-OBJECTIVE OPTIMIZATION OF THE INNER REINFORCEMENT FOR A VEHICLE'S HOOD CONSIDERING STATIC STIFFNESS AND NATURAL FREQUENCY
S. H. CHOI, S. R. KIM, Jaeyong Park, Han Seog Young
Hanyang University
ABSTRACT
A multi-objective optimization technique was implemented to obtain optimal topologies of the inner reinforcement for a vehicle's hood simultaneously considering the static stiffness of bending and torsion and natural frequency In addition, a smoothing scheme was used to suppress the checkerboard patterns in the ESO method. Two models with different curvature were chosen in order to investigate the effect of curvature on the static stiffness and natural frequency of the inner reinforcement. A scale factor was employed to properly reflect the effect of each objective function. From several combinations of weighting factors, a Pareto-optimal topology solution was obtained. As the weighting factor for the elastic strain efficiency went from 1 to 0, the optimal topologies transmitted from the optimal topology of a static stiffness problem to that of a natural frequency problem. It was also found that the higher curvature model had a larger static stiffness and natural frequency than the lower curvature model. From the results, it is concluded that the ESO method with a smoothing scheme was effectively applied to topology optimization of the inner reinforcement of a vehicle's hood.
Key Words: Multi-objective optimization, Static stiffness, Natural frequency, Smoothing scheme, Inner reinforcement of a vehicle's hood, Topology optimization
TOOLS
Preview  Preview
Full text via DOI  Full text via DOI
Download Citation  Download Citation
  Print
Share:      
METRICS
1,066
View
10
Download
Related article
MULTI-OBJECTIVE OPTIMIZATION OF POWERTRAIN COMPONENTS FOR ELECTRIC VEHICLES USING A TWO-STAGE ANALYSIS MODEL  2020 December;21(6)

Editorial Office
21 Teheran-ro 52-gil, Gangnam-gu, Seoul 06212, Korea
TEL: +82-2-564-3971   FAX: +82-2-564-3973   E-mail: manage@ksae.org
About |  Browse Articles |  Current Issue |  For Authors and Reviewers
Copyright © The Korean Society of Automotive Engineers.                 Developed in M2PI
Close layer
prev next