Using Response Surface for Searching the Nearly Optimal Parameters Combination of the Foam Concrete Muffler.

ABSTRACT: A car muffler is a device to improve car noise emission. Some conventional mufflers use layers of glass fiber as a material to absorb noise. However, filling glass fiber is an environmentally unfriendly work, mainly manually filling with chop strand fiber. This research selected a composite material of glass fiber and foam concrete to replace chop strand fiber to avoid this hazard and maintain the muffler's good noise reduction performance. A response surface methodology with a two-way factorial experimental design repeated the center point twice is performed. The density of the foamed concrete and the weight of the glass fiber is being considered in order to determine the nearly optimal combination of the values in two factors. The response variable is the loudness sensation in Sone of th

SUBMITTER: Lin TH 

PROVIDER: S-EPMC9692282 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature