单自由度简谐受迫振动中，若算得位移放大系数为负值，则表示（）。 -题库考试答案搜索网

单自由度简谐受迫振动中，若算得位移放大系数为负值，则表示（）。

单选题

2021-07-17 22:43

A、体系不可能振动；
B、动位移小于静位移;
C、干扰力频率与自振频率不同步；
D、干扰力方向与位移方向相反。

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正确答案

D

试题解析

标签：土木工程专升本结构力学 2020年下学期期末考试土木工程专升本结构力学练习题期末考试 2020级第一学期期末考试建筑工程技术高起专 2019级第三学期期末考试水利水电工程水利水电建筑工程道路桥梁与渡河工程

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