4.The sound tranfer loss of 2 kind of muffler structures are calculated, then tested and verified on the double sound transferrer random exciting exhaust muffler testing rig.
利用此种矩阵,计算了两种结构传递损失,并在双传随机激励试验台上进行了试验验证。
5.By using this method, the effects of various parameters on the performance of the exhaust muffler and a variation law are clear and all the indexes of the new muffer are improved.