通过理论计算与试验分析相结合的方法,确定X型坦克座舱内的主要噪声源为行动部分引起的车体振动激励的噪声,鉴别出了发动机与风扇的噪声基频。在信号分析过程中采用功率谱分析法和相关分析法。 Through the combination of theoretical calculation and experimental analysis, the main noise source in the tank of X-tank is determined as the noise caused by the vibration excitation of the vehicle body and the noise fundamental frequency of the engine and fan is identified. In the signal analysis process using power spectrum analysis and correlation analysis.