电抗器减振系统计算分析

Analysis on system of vibration reduction in reactor

为了解决某变电站电抗器设备振动噪声过大的问题,采用有限元数值仿真方法,建立了电抗器设备的有限元分析模型,应用ANSYS软件对其进行了模态和谐响应分析,得到了设备产生振动噪声的主要原因,即电抗器基础未能隔振产生并且由低频噪声引起。由此提出了在基座和设备之间增加橡胶隔振器的改进方法,通过与原设备对比分析可以证明,改进的隔振结构减振降噪效果明显。

In order to solve the problem of the equipment noise and vibration in a substation reactor,finite element analysis model of the reactor was established by numerical simulation method.The modal and harmonic response analysis also were completed using ANSYS software.It was concluded that the main reason causing vibration and noise is the basis of the reactor failed to isolating vibration that producing low-frequency noise.Therefore the improved method increasing rubber vibration isolator between the base and equipment was proposed.Comparing with the original equipment,the improved structure shows that reduction effect of vibration and noise is obvious.