【摘要】 基于能量流理论提出了识别结构噪声源的分析方法。推导了利用两点线性加速度传感器测量能量流的互谱表达式。对测量过程中出现的主要误差进行了分析，提出了相应的减少误差的措施。通过试验验证了测量方法的精度及识别结构噪声的主要过程。更多还原

【Abstract】 An analysis method is proposed to identify structure borne sound source based on vibrational energy flow theory. The cross spectrum expression of energy flow is deduced when two linear accelerometers are arrayed to measure energy flow. Major error sources and method of their reduction are provided. The accuracy of measurement is verified by an experiment and a main procedure to identify structure borne sound source is provided.更多还原