J—50拖拉机噪声测量及排气消声器的设计

Noise measuring and exhaust muffler designing for a J-50 tractor

该文叙述了对J-50拖拉机进行噪声测量.并依据噪声评价曲线确定理论消声量,根据理论计算,设计了J-50拖拉机主机和起动机排气消声器.

This article describes the noise measurement of the J-50 tractor, and decides the theoretical noise elimination value according to the noise evaluation curve. From the calculation. the authors design the main engine's muffler and the starter's exhaust muffler of J-50 tractor.