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Full-Text Articles in Engineering
Numerical Optimization Of A Three-Chamber Muffler Hybridized With A Side Inlet And A Perforated Tube By Sa Methodm, Min-Chie Chiu
Numerical Optimization Of A Three-Chamber Muffler Hybridized With A Side Inlet And A Perforated Tube By Sa Methodm, Min-Chie Chiu
Journal of Marine Science and Technology
Research on new techniques of multi-chamber mufflers equipped with a side inlet and an internal non-perforated tube has been well addressed and developed; however, the research work of multi-chamber mufflers in conjunction with side inlet and internal perforated tubes which may efficiently increase the acoustical performance is rare. Therefore, the main purpose of this paper is to not only analyze the sound transmission loss (STL) of three-chamber side mufflers with a perforated tube but also to optimize their best design shape under a limited space. In this paper, both the generalized decoupling technique and plane wave theory in solving the …
Shape Optimization Of One-Chamber Mufflers With Perforated Intruding Tubes Using A Simulated Annealing Method, Ying-Chun Chang, Min-Chie Chiu, Wang-Chuan Liu
Shape Optimization Of One-Chamber Mufflers With Perforated Intruding Tubes Using A Simulated Annealing Method, Ying-Chun Chang, Min-Chie Chiu, Wang-Chuan Liu
Journal of Marine Science and Technology
It has been noted that the application of high performance, compact mufflers is the future for modern factories where place is at a premium. However, as research on mufflers equipped with extended tubes has been exhausted, and frankly at the juncture, shown to be inadequate (unsuitable), attention has turned to mufflers conjugated with perforated intruding tubes which can dramatically increase acoustical performance. Therefore, the focus of this paper is not only to analyze the sound transmission loss (STL) of a one-chamber open-ended perforated muffler but also to optimize the best design shape within a limited space. In this paper, the …
Shape Optimization Of One-Chamber Mufflers With Reverse-Flow Ducts Using A Genetic Algorithm, Min-Chie Chiu
Shape Optimization Of One-Chamber Mufflers With Reverse-Flow Ducts Using A Genetic Algorithm, Min-Chie Chiu
Journal of Marine Science and Technology
Shape optimization on mufflers within a limited space is essential for industry where the equipment layout is occasionally tight and the available space for a muffler is limited for maintenance and operation purposes. To proficiently enhance the acoustical performance within a constrained space, the selection of an appropriate acoustical mechanism and optimizer becomes crucial. A one-chamber muffler hybridized with reverse-flow ducts which can visibly increase the acoustical performance is rarely addressed; therefore, the main purpose of this paper is to numerically analyze and maximize the acoustical performance of this muffler within a limited space. In this paper, the four-pole system …