首页/ 题库 / [单选题]平面机构的平衡问题中,对“动不平衡”描述的答案

平面机构的平衡问题中,对“动不平衡”描述正确的是( ) 。 

单选题
2021-09-01 16:44
A、 只要在一个平衡面内增加或出去一个平衡质量即可获得平衡 
B、 动不平衡只有在转子运转的情况下才能表现出来 
C、&#8194;静不平衡针对轴尺寸较小的转子(转子轴向宽度b与其直径D之比b/D<0.2)&#8194;
D、&#8194;使动不平衡转子的质心与回转轴心重合可实现平衡&#8194;
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正确答案
B

试题解析

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