我院202振动疲劳实验室,承担着电涡流激振技术和激振器的科研任务,其叶片振动辐射出强烈噪声,影响着工作人员的健康。我们对此进行了治理。 叶片振动的噪声源主要有两个:1.高速激振2967赫与铝平板叶片(140× 60× 41)发生共振,剪切周围静止空气引起空气扰动而发出的尖叫噪声;2. Vibration fatigue laboratory in our hospital 202, bear the eddy current excitation technology and exciter scientific research tasks, the blade vibration radiation a strong noise, affecting the health of staff. We have done this. There are two main noise sources for blade vibration: 1. The high-frequency excitation 2967 Hz resonates with the aluminum flat blade (140 × 60 × 41) and scream noise caused by the air disturbance caused by still air around the shear is cut;