The acoustic field with convex parameters widely exists in the engineering practice. The vertex method and the anti-optimization method are not considered as appropriated approaches for the response analysis of acoustic field with convex parameters. The shortcoming of the vertex method is that the local optima out of vertexes cannot be identified. The disadvantage of the anti-optimization method is that the analytical formulation of response may be not obtained. To analyze the acoustic field with convex parameters efficiently and effectively, a first-order convex perturbation method (FCPM) and a second-order convex perturbation method (SCPM) are presented. In FCPM, the response of the acoustic field with convex parameters is expanded with the first-order Taylor series. In SCPM, the response of the acoustic field with convex parameters is expanded with the second-order Taylor series neglecting the nondiagonal elements of Hessian matrix. The variational bounds of the expanded responses in FCPM and SCPM are yielded by the Lagrange multiplier method. The accuracy and efficiency of FCPM and SCPM are investigated by numerical examples.
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August 2014
Research-Article
Response Analysis of Acoustic Field With Convex Parameters
Baizhan Xia,
Baizhan Xia
State Key Laboratory of Advanced Design
and Manufacturing for Vehicle Body,
and Manufacturing for Vehicle Body,
Hunan University
,Changsha, Hunan 410082
, China
Search for other works by this author on:
Dejie Yu
Dejie Yu
1
State Key Laboratory of Advanced Design
and Manufacturing for Vehicle Body,
e-mail: djyu@hnu.edu.cn
and Manufacturing for Vehicle Body,
Hunan University
,Changsha, Hunan 410082
, China
e-mail: djyu@hnu.edu.cn
1Corresponding author.
Search for other works by this author on:
Baizhan Xia
State Key Laboratory of Advanced Design
and Manufacturing for Vehicle Body,
and Manufacturing for Vehicle Body,
Hunan University
,Changsha, Hunan 410082
, China
Dejie Yu
State Key Laboratory of Advanced Design
and Manufacturing for Vehicle Body,
e-mail: djyu@hnu.edu.cn
and Manufacturing for Vehicle Body,
Hunan University
,Changsha, Hunan 410082
, China
e-mail: djyu@hnu.edu.cn
1Corresponding author.
Contributed by the Noise Control and Acoustics Division of ASME for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received June 28, 2013; final manuscript received April 26, 2014; published online June 2, 2014. Assoc. Editor: Liang-Wu Cai.
J. Vib. Acoust. Aug 2014, 136(4): 041017 (12 pages)
Published Online: June 2, 2014
Article history
Received:
June 28, 2013
Revision Received:
April 26, 2014
Citation
Xia, B., and Yu, D. (June 2, 2014). "Response Analysis of Acoustic Field With Convex Parameters." ASME. J. Vib. Acoust. August 2014; 136(4): 041017. https://doi.org/10.1115/1.4027631
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