噪声与振动控制
譟聲與振動控製
조성여진동공제
NOISE AND VIBRATION CONTROL
2013年
4期
131-137
,共7页
声学%四极子参数%扩张室式消声器%内插管消声器%穿孔管消声器%SIDLAB
聲學%四極子參數%擴張室式消聲器%內插管消聲器%穿孔管消聲器%SIDLAB
성학%사겁자삼수%확장실식소성기%내삽관소성기%천공관소성기%SIDLAB
acoustics%four-port parameter%expansion chamber muffler%intubation muffler%perforated tube muffler%SIDLAB
针对不同类型的矿用汽车为消声器的预留空间不同，分别讨论长径比、扩张比、穿孔率、内插管长等参数对抗性消声器的选型影响。利用SIDLAB软件对各参数组合下的抗性消声器的传递损失和压力损失分别进行计算。研究表明：上述参数的变化对最大消声量、去除通过频率都有较大影响，穿孔管消声器能够达到理想的消声效果，当一端内插扩张腔长度的1/2，另一端内插1/4时，效果最佳。针对某290 t矿用汽车为消声器的预留空间的特点，通过压力损失和传递损失比较，为该矿用汽车设计了适宜的消声器。
針對不同類型的礦用汽車為消聲器的預留空間不同，分彆討論長徑比、擴張比、穿孔率、內插管長等參數對抗性消聲器的選型影響。利用SIDLAB軟件對各參數組閤下的抗性消聲器的傳遞損失和壓力損失分彆進行計算。研究錶明：上述參數的變化對最大消聲量、去除通過頻率都有較大影響，穿孔管消聲器能夠達到理想的消聲效果，噹一耑內插擴張腔長度的1/2，另一耑內插1/4時，效果最佳。針對某290 t礦用汽車為消聲器的預留空間的特點，通過壓力損失和傳遞損失比較，為該礦用汽車設計瞭適宜的消聲器。
침대불동류형적광용기차위소성기적예류공간불동，분별토론장경비、확장비、천공솔、내삽관장등삼수대항성소성기적선형영향。이용SIDLAB연건대각삼수조합하적항성소성기적전체손실화압력손실분별진행계산。연구표명：상술삼수적변화대최대소성량、거제통과빈솔도유교대영향，천공관소성기능구체도이상적소성효과，당일단내삽확장강장도적1/2，령일단내삽1/4시，효과최가。침대모290 t광용기차위소성기적예류공간적특점，통과압력손실화전체손실비교，위해광용기차설계료괄의적소성기。
According to the different reserved spaces for mufflers of different types of mineral trucks, influences of the parameters of length to diameter ratio, expansion ratio, perforation rate etc. on type selection of resistance mufflers were discussed respectively. The transmission loss and the pressure loss of the resistance mufflers with different combination of the parameters were computed by using SIDLAB software. It shows that the change of parameters has a great influence on the maximum value of the noise reduction and the removal of the passing frequency of the mufflers. The perforated tube muffler can achieve the most ideal silencing effect. When one end of the tube inserts into the expansion cavity with a half of the length of the cavity, and the other insets with a quarter of the length of the cavity, the muffler can have the best effect of noise elimination. Finally, a suitable muffler for a 290 t mineral truck was designed according to the requirements of its reserved space, transmission loss and pressure loss.
