![]() ![]() The influence of the two-stage system valve operation has been analyzed by studying the acoustics data and engine output characteristics. ![]() The acoustical and fluid-dynamical performance of the silencer is characterized by transmission loss and pressure drop data. A technical description of the design and manufacturing of the prototype silencer is given and technological issues are discussed. It has been demonstrated that the micro-perforated elements can successfully be used to achieve high attenuation of IC-engine noise in strictly limited circumstances. In this paper a novel design for a cruiser type motorcycle silencer, based on micro-perforated elements, is presented. Additionally, the silencer is designed as a two-stage system that provides an optimal solution for a variety of exploitation conditions. Similarly to fibrous materials the micro-perforated materials have been proved to provide effective sound absorption in a wide frequency range. Micro perforated elements are innovative acoustic solutions,which silencing effect is based on the dissipation of the acoustic wave energy in a pattern of sub-millimeter apertures. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |