There is no effective method to forecast and estimate the hydraulic vibration of hydraulic turbine up to now in the world, much less research in-depth for powerhouse structure resonance excitated by hydraulic disturbance of hydrogenerator set 目前國內(nèi)外尚無完善的水輪機(jī)水力振動預(yù)估方法,而對機(jī)組水力振動引起的廠房結(jié)構(gòu)共振更是未深入研究。
Through analysis the reasons influencing measuring stability have been found out, which are the flexure strain and structure resonance produced by the transmission axle under the function of the gearing-in force of the reduction gear 雖然與傳統(tǒng)的測量方法一致,但經(jīng)過理論分析,得出了這種測量方式機(jī)械結(jié)構(gòu)影響測量穩(wěn)定性的原因,即傳動軸受減速器齒輪嚙合力作用?生的彎曲應(yīng)變和結(jié)構(gòu)諧振對測量精度影響最大。