【摘要】 实验在模拟无人机转子动力特性实验台上。试件选用等截面光轴加单盘组成的转子。为了试验稳妥，有意使临界转速值尽量降低，故采用一端刚支，另一端用了刚性弱的鼠笼弹支。串联刚性Ｋ＝２２００ｋｇ／ｃｍ。试验结果见图１。图１几个影响通过临界因素的典型极值曲线从图１...更多还原

【Abstract】 Abstract Several limits,which obstruct the rotor from passing through the critical rotational speed,have been investigated experimentally.The results indcate that if one of the vibration parameters rises to a certain level,standing state will come into being as the rotational speed approaches critical value.At this moment,even if the driving power continues rising,only the value of vibration will gain a sharp increase,but the rotational speed won′t.In such case,there is not only the trouble that rotational speed can′t pass through critical value,but also the danger that the shaft will be broken at any time or even worse accident will take place.更多还原