TY - GEN
T1 - OPTIMIZATION OF AN AUTOMOTIVE STRUCTURE SUBJECT TO HARMONIC EXCITATION
AU - Garcia, Arnoldo
AU - Lumsdaine, Arnold
AU - Yao, Ying
N1 - Publisher Copyright:
© 1999 American Society of Mechanical Engineers (ASME). All rights reserved.
PY - 1999
Y1 - 1999
N2 - Optimization theory has been used to obtain solutions to a variety of engineering problems involving beam vibration. In this study, the objective is to design a structure that uses the minimum amount of material. The structure examined is a beam undergoing coupled bending and torsion, as is common in automotive structure beams. The objective of this study is to minimize the weight of an automotive structure subject to harmonic excitation. The automotive structure is modeled with beam elements in I-DEAS, a computer-aided engineering and finite element software. For each given length, its cross-sectional area is optimized by a discrete finite element method. In addition, a bracket was modeled in conjunction with the automotive structure. Although the optimal design of beams undergoing forced harmonic loading is available in the literature, to the authors' knowledge, optimal design of such structures including an intermediate support have not been considered. The placement of the bracket was also treated as a design parameter by varying its location and size in the optimization process. Results show that the total mass after optimization had a mass reduction of 91% when compared to the original weight.
AB - Optimization theory has been used to obtain solutions to a variety of engineering problems involving beam vibration. In this study, the objective is to design a structure that uses the minimum amount of material. The structure examined is a beam undergoing coupled bending and torsion, as is common in automotive structure beams. The objective of this study is to minimize the weight of an automotive structure subject to harmonic excitation. The automotive structure is modeled with beam elements in I-DEAS, a computer-aided engineering and finite element software. For each given length, its cross-sectional area is optimized by a discrete finite element method. In addition, a bracket was modeled in conjunction with the automotive structure. Although the optimal design of beams undergoing forced harmonic loading is available in the literature, to the authors' knowledge, optimal design of such structures including an intermediate support have not been considered. The placement of the bracket was also treated as a design parameter by varying its location and size in the optimization process. Results show that the total mass after optimization had a mass reduction of 91% when compared to the original weight.
UR - http://www.scopus.com/inward/record.url?scp=85122954759&partnerID=8YFLogxK
U2 - 10.1115/IMECE1999-0201
DO - 10.1115/IMECE1999-0201
M3 - Conference contribution
AN - SCOPUS:85122954759
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 217
EP - 222
BT - Noise Control and Acoustics
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 1999 International Mechanical Engineering Congress and Exposition, IMECE 1999
Y2 - 14 November 1999 through 19 November 1999
ER -