| 摘要 |
本发明揭露一种可调整频率之减音系统，其可调整频率之手段系以音场数学模型为基础，搭配四埠传输矩阵进行推导并配合最佳化运算，以进行调音机构之结构设计，并调整吸音体之填装位置以适应特定之噪音频率，然此减音系统可依特定噪音频率来组装相对应特定噪音频率之调音机构，以形成组立式之调音系统，以达到不影响排风冷却系统之压损、减低减音系统之重量及控制环境之噪音等目的。;The invention discloses a frequency-adjustable noise suppression system. Based on a theoretical acoustic model, the frequency adjustment method incorporates with a four-pole transfer matrix to conduct an optimal derivation to build up the structure of the tuning mechanism. The goal is to adjust the sound absorbing body for filling position to suit specific noise frequency. To meet the demand of processing noise emitted from different sources, a composite tuning system is formed by assembling tuning mechanisms of the corresponding frequencies. Thus, the presented noise suppression system is able to achieve the goal of light weight, low back pressure of the ventilation system, and environmental noise control. |
