皮皮学，免费搜题
登录
搜题
【单选题】
多自由度系统【图片】，【图片】为比例阻尼模型。按无阻尼情况求得各阶主振型，并构成模态矩阵【图片】。则在模态叠加法的解法过程中A.
作物理空间到模态空间的变换 可将原方程解耦为 的形式。
B.
由在模态空间中的微分方程 得到频响函数 ，则该多自由度系统的频响函数矩阵可以表示为
C.
如果采用归一化的模态矩阵，即满足 。初始条件 模态空间内表达为
D.
若外力 为一个在 自由度上施加的单位激励 ，则系统的稳态响应可以表示为 这里 为频响函数矩阵。
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】Parallelism is regularly used to( ).
A.
list facts, ideas and s etc. in order to achieve certain rhetorical effect
B.
compare one thing with another
C.
summarize
D.
introduce the main idea at the beginning
【简答题】A．They should show both the good and bad sides of the house. B．The man should take as many pictures as possible. C．They are better to be taken by professionals. D．All of them should show the best aspe...
【多选题】Parallelism makes the sentence _________.
A.
difficult to read
B.
thought-provoking
C.
clearer
D.
easier to read
【简答题】A．They should show both the good and bad sides of the house. B．The man should take as many pictures as possible. C．They are better to be taken by professionals. D．All of them should show the best aspe...
【单选题】Parallelism appears in the following forms except ______.
A.
lookahead, pipelining, data parallelism
B.
vectorization, concurrency, partitioning
C.
simultaneity, overlapping, replication
D.
multitasking, miniturization, digitalisation
【单选题】both sides accept the agreement a lasting peace be established in this region.
A.
Should, will
B.
Unless, would
C.
Only if, will
D.
If only, would
相关题目：
参考解析：
知识点：
题目纠错 0
发布
