举一反三
- 已知某系统开环传递函数为 起始角为( )。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/e9cb78c1607943faaf3c22253187890a.png
- 已知某系统开环传递函数为 与虚轴的交点为()。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/e9cb78c1607943faaf3c22253187890a.png
- 已知单位负反馈系统的开环传递函数 是则该系统( )http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/6e047bba6ae74409b1f6610e45001be2.png
- 已知某最小相位系统的开环相频特性为 确定相角裕度为30°时的开环传递函数为( )http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/333ebb35c1be40acaad86070b920d094.png
- 已知某系统的开环传递函数为 其对应的开环幅相曲线为如下图,判断系统的稳定性()http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/c7a7adfda871420a9635bfc33fd0eb48.png
内容
- 0
已知某系统开环传递函数为 有( )条分支,( )条渐近线。[img=792x184]17a3d9c77ad130a.png[/img]
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已知某系统开环传递函数为 有( )条分支,( )条渐近线。[img=792x184]17a3da9adfcc0ec.png[/img]
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某最小相位系统的对数幅频特性曲线如下所示,写出系统的开环传递函数为( )。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/3f0edd0d4518456895320be18a4e5c9b.png
- 3
已知某系统开环传递函数为有()条分支,()条渐近线。 A: 1,1 B: 2,2 C: 3,3 D: 4,4
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图示结构C截面弯矩为<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/4f75b4fba9ff4be1b04a5e100c86c65e.png" /> A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/145877d7a442497f9fe1266fa394ba2e.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/1b6f8295e7bc44b0b8a2bee20e062fc4.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201906/18776e34a7504dfcbe40fbdf73958b14.png" /> D: 0