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本文简单叙述内燃机噪声分析中传递函数的定义及应用,着重叙述内燃机静态和动态传递函数的测定及信号处理方法。这是在内燃机振动噪声试验研究中值得引起注意的新技术,是传递函数在噪声源识别中进一步应用的基础和前提。
This article briefly describes the definition and application of the transfer function in the noise analysis of an internal combustion engine, and focuses on the determination and signal processing methods of the static and dynamic transfer functions of an internal combustion engine. This is a new technique which is worthy of attention in the experiment of vibration noise of internal combustion engine. It is the basis and precondition of further application of transfer function in noise source identification.