The Noise Vibration Harshness (NVH) behavior of engines is one of the predominant factors for market acceptance of vehicles. To reach this goal it is necessary to reduce the absolute noise level and also the noise level in specific frequency ranges. The design of radiating structures for minimal sound radiation is a multidisciplinary problem that involves complex objective functions and expensive computations. In this paper, genetic algorithm is used as a promising tool for numerical optimization of such problems. The objective of the study is to determine effective, general design methods for determining the optimal design of thin parts of I.C. engine that minimizes the total radiated acoustic power. Variable attached discrete masses are considered. Acoustic response is minimized either at a single frequency or first five natural frequencies. Radiated sound power is calculated using a boundary element method, in conjunction with a finite element solver ANSYS for the solution of the structural acoustical problem.
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ASME 2003 Internal Combustion Engine and Rail Transportation Divisions Fall Technical Conference
September 7–10, 2003
Erie, Pennsylvania, USA
Conference Sponsors:
- Internal Combustion Engine Division and Rail Transportation Division
ISBN:
0-7918-4161-8
PROCEEDINGS PAPER
Genetic Algorithms for the Vibroacoustic Optimization of the Thin Parts of I.C. Engine Available to Purchase
Xiaolong Deng,
Xiaolong Deng
Huazhong University of Science and Technology, Wuhan, Hubei, China
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Zongjie Zhang,
Zongjie Zhang
Huazhong University of Science and Technology, Wuhan, Hubei, China
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Chunpeng Sun,
Chunpeng Sun
Huazhong University of Science and Technology, Wuhan, Hubei, China
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Shaohe Li
Shaohe Li
Huazhong University of Science and Technology, Wuhan, Hubei, China
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Xiaolong Deng
Huazhong University of Science and Technology, Wuhan, Hubei, China
Zongjie Zhang
Huazhong University of Science and Technology, Wuhan, Hubei, China
Chunpeng Sun
Huazhong University of Science and Technology, Wuhan, Hubei, China
Shaohe Li
Huazhong University of Science and Technology, Wuhan, Hubei, China
Paper No:
ICEF2003-0750, pp. 83-92; 10 pages
Published Online:
January 22, 2009
Citation
Deng, X, Zhang, Z, Sun, C, & Li, S. "Genetic Algorithms for the Vibroacoustic Optimization of the Thin Parts of I.C. Engine." Proceedings of the ASME 2003 Internal Combustion Engine and Rail Transportation Divisions Fall Technical Conference. Design and Control of Diesel and Natural Gas Engines for Industrial and Rail Transportation Applications. Erie, Pennsylvania, USA. September 7–10, 2003. pp. 83-92. ASME. https://doi.org/10.1115/ICEF2003-0750
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