科启达公司射频IC回收 天津河东区回收晶振光耦
科启达公司射频IC回收 天津河东区回收晶振光耦
回收威纶 :威纶通人机界面MT510系列,MT6070系列,MT810系列,TK6070系列触摸屏等回收信捷: XC1,XC2,XC3,14R/T16R/T24R/T32R/T42R/T/48/60R/T回收台达: DVP16/DVP24/DVP32/DVP40/DVP58/DVP60/ES200R另高价回收IC、晶振、连接器、二三极管、钽电容、继电器专业回收工控自动化气动产品,工厂拆机,设备淘汰,工程剩余货,流水线返修器件,闲置货全回收
欢迎来电联系 陈姐
风振动是指当0.5~10m/s的稳定风速吹向输电导线时,在输电导线的背风侧产生上下交替的卡门漩涡,引起上下交变力作用于输电导线上,使导线产生垂直振动。当导线以某频率f0振动以后,气流将受到导线振动的控制,使导线背后的旋涡表现为良好的顺序性,其频率也为f0。当风速在一定范围内变化时,导线的振动频率和旋涡频率都维持在f0,这种现象导致导线在垂直平面内发生谐振,形成上下有规律的波浪状往复运动,即产生了导线微风振动。
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