西南大学22年9月0933 机械工程控制基础在线作业资料非答案

admin · 发表于 2023-4-4 09:10:34

答案来源：www.ybaotk.com0933 机械工程控制基础

1.[单选题] 在反馈控制系统中，【 】。

答案资料下载请参考
说明

A.系统阶次越高，系统稳定误差越大

B.系统型次越高，增益越大，系统稳定误差越小

C.系统阶次越高，增益越大，系统稳定误差越小

D.系统型次越高，增益越大，系统稳定误差越大

2.[单选题] 某系统的运动微分方程为<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/15/202011151605454291692090860.png" title="202011151605454291692090860.png" alt="image.png"/>，该系统是（ ）。

A.线性定常系统

B.非线性时变系统

C.非线性系统

D.线性时变系统

3.[单选题] 某系统的开环传递函数为<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/15/202011151605451217447098484.png" title="202011151605451217447098484.png" alt="image.png"/>，该系统为（ ）。

A.0型系统

B.都不是

C.Ⅰ型系统

D.Ⅱ型系统

4.[单选题] 为提高二阶欠阻尼系统相对稳定性，可（ ）。

A.减小ξ

B.加大<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605539323281099033.png" title="202011161605539323281099033.png" alt="image.png"/>

C.减小<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605539289390075561.png" title="202011161605539289390075561.png" alt="image.png"/>

D.加大ξ

5.[单选题] 开环控制系统是指系统中没有【 】。

A.反馈回路

B.积分环节

C.惯性环节

D.支路

6.[单选题] 用以稳定控制系统，提高控制性能的元件，称为系统的（ ）。

A.给定元件

B.比较元件

C.校正元件

D.反馈元件

7.[单选题] 某反馈控制系统的系统方框图如图所示，则该系统的开环传递函数为【 】。

<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605535044508067945.png" title="202011161605535044508067945.png" alt="image.png"/>

A.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605535084619090199.png" title="202011161605535084619090199.png" alt="image.png"/>

B.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605535150500075181.png" title="202011161605535150500075181.png" alt="image.png"/>

C.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605535103395056500.png" title="202011161605535103395056500.png" alt="image.png"/>

D.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605535126098032664.png" title="202011161605535126098032664.png" alt="image.png"/>

8.[单选题] 某系统的传递函数为<img width="88" height="41" src="data:image/png;base64,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"/>，则影响系统时间响应快速性的因素是（ ）。

A.K

B.K和T

C.输入信号大小

D.T

9.[单选题] 某系统的传递函数为<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605456515539066524.png" title="202011161605456515539066524.png" alt="image.png"/>，则影响系统时间响应快速性的因素是（ ）。

A.都不是

B.T

C.K

D.K和T

10.[单选题] 以下关于方框图说法错误的是（ ）。

A.方框图中，每条线段上描述的是系统中传递的信号

B.方框图是系统的一种模型表述

C.方框图中每个方框中描述的系统某个环节的传递函数

D.方框图的标注上，每条线段上不能用信号的时域形式进行表述

11.[单选题] 线性定常二阶系统的闭环增益加大，（ ）。

A.对系统的动态性能没有影响

B.峰值时间提前

C.超调量愈大

D.系统的快速性愈好

12.[单选题] 比例环节的对数相频特性<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605538654943094960.png" title="202011161605538654943094960.png" alt="image.png"/>为（ ）。

A.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605538747487023399.png" title="202011161605538747487023399.png" alt="image.png"/>

B.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605538725636098594.png" title="202011161605538725636098594.png" alt="image.png"/>

C.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605538706525011682.png" title="202011161605538706525011682.png" alt="image.png"/>

D.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605538765364099341.png" title="202011161605538765364099341.png" alt="image.png"/>

13.[单选题] 二阶微分环节的传递函数是【 】。

A.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/15/202011151605441543013016346.png" title="202011151605441543013016346.png" alt="image.png"/>

B.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/15/202011151605441523876068084.png" title="202011151605441523876068084.png" alt="image.png"/>

C.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/15/202011151605441505963076472.png" title="202011151605441505963076472.png" alt="image.png"/>

D.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/15/202011151605441485685085945.png" title="202011151605441485685085945.png" alt="image.png"/>

14.[单选题] 延时环节<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605613960450081112.png" title="202011171605613960450081112.png" alt="image.png"/>的相频特性<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605613981390077321.png" title="202011171605613981390077321.png" alt="image.png"/>（ ）。

A.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605614092307029563.png" title="202011171605614092307029563.png" alt="image.png"/>

B.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605614065340006814.png" title="202011171605614065340006814.png" alt="image.png"/>

C.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605614037181084469.png" title="202011171605614037181084469.png" alt="image.png"/>

D.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605614012332024230.png" title="202011171605614012332024230.png" alt="image.png"/>

15.[单选题] 两系统传递函数分别为G1(s)=100/(s+1)、G2(s)=100/(s+10)。调节时间分别为t1和t2，则（ ）。

A.t1< t2

B.t1> t2

C.t1=t2

D.t1≤t2

16.[单选题] 系统方框图如图所示，则该系统的传递函数为（ ）。<img width="236" height="116" align="left" src="data:image/png;base64,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" hspace="12" v:shapes="_x0000_s1031"/>

A.?<img width="93" height="47" src="data:image/png;base64,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"/>

B.?<img width="93" height="47" src="data:image/png;base64,R0lGODlhXQAvAHcAMSH+GlNvZnR3YXJlOiBNaWNyb3NvZnQgT2ZmaWNlACH5BAEAAAAALAMAAgBXACoAhQAAAAAAAB0AAAAAHR0AHR0AMgAAMwAcSAAzWh0zWh1GbDMAADIAHTIAMjMzWzNbgEgcAEceM1ozAFozHVszM0YzRltISF1/f0huf2xGHW5GM25GRn9/XX9uSGaIiIBbM4iIZgECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwECAwb/QIBwSCwaj0YHcslkUprQaLMhrTKp1mzzqe0OlV5kYNzsFA9hyTiAAFSWmHAxgBZ+AkvJcEH39od4S21yAHcPRRlLDGddgUWHSAWEAAKDUpJDGXVWlVmLhAZZoUSbUhKjVguEEKUQa6hFsJpZrESuY7BFC5BeC5Z2AQpLuaUAamtrlqpGjkjLYb5GubFEs6m/ABnTupMDRRBEfEUEjFYSA3FEltufcguwArxCWELtxsVR70QCRBFHmJOQ4QOQztieMeiyHCPT7wi2SUgsFEkA0cqEik0+HCmIcYi/jlI0goTycSSTDGvkFTIppBkAlSxjypxJs6bNgMhy6tzJs6fPy59Ag7q8SbSo0aNIkyr9NtBUMowLHxaJyoRP04x/CgUjdGfTHWFGug75yuQqk6FSSh5BK0aLWSSdjHDUErfIXEpS72Z6a+RUGLVE/EYRnIXvt2+vwoCzldgWYlxlmekMh40skoXIfkUjYplykc5IDIc7si0V6SPPiJTeq9CbLalHAA85900q7ddQRIdD1SHekNVN9AnpzQuWcADED4IVwieAa3MCq8gOHD1PdQAb5tGcPon7koszvcsRj5S8F/OPltqEDZItIfeSHQUBADs="/>

C.?<img width="93" height="47" src="data:image/png;base64,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"/>

D.?<img width="72" height="47" src="data:image/png;base64,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"/>

17.[单选题] 比例环节的对数幅频特性是（ ）。

A.0

B.K

C.-20lgK

D.20lgK

18.[单选题] 用以稳定控制系统，提高控制性能的元件，称为系统的（ ）。

A.校正元件

B.比较元件

C.给定元件

D.反馈元件

19.[单选题] 单位阶跃响应的导数是（ ）。

A.单位斜坡响应

B.都不是

C.单位加速度响应

D.单位脉冲响应

20.[单选题] 伯德图中对数相频特性图上的<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605535619987006143.png" title="202011161605535619987006143.png" alt="image.png"/>线对应于奈奎斯特图上的【 】。

A.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605535799496091407.png" title="202011161605535799496091407.png" alt="image.png"/>

B.负虚轴

C.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605535809268028350.png" title="202011161605535809268028350.png" alt="image.png"/>

D.负实轴

21.[单选题] 按控制系统组成元件的物理性质分，可将系统分为机械控制系统、液压控制系统和【 】等。

A.人工控制系统

B.程序控制系统

C.电气控制系统

D.离散控制系统

22.[单选题] 系统的频域指标<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605616680820037328.png" title="202011171605616680820037328.png" alt="image.png"/>可表征系统的【 】。

A.准确性

B.抗干扰能力

C.稳定性

D.快速性

23.[单选题] 若<img width="31" height="23" src="data:image/png;base64,R0lGODlhHwAXAHcAMSH+GlNvZnR3YXJlOiBNaWNyb3NvZnQgT2ZmaWNlACH5BAEAAAAALAMAAgAaABIAhAAAAAAAAB0AHQAAHR0AMgAAMwAcSB0zWgAzWh1GbDMAADIAHTIAMjMzWzNGbjNbgEgcAEceM1ozHVozAFszM11/f0huf1l/bmxGHX9/XX9uSGaIiIBbM4iIZgECAwECAwVoICCOZGmeaKquLKoE45FK6SIawLQiaLI6Iw2qUCKUBCVbKRAgijhOERM2UjxMPFLUZVKUoCQlyVo0RTG4kreUDgosI58JPoKcxMZI2Y26cgIDX1gtKTxGKDQoDU9NK4smFIQkWSM6IyEAOw=="/>的拉氏变换为<img width="100" height="44" src="data:image/png;base64,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"/>，则<img width="67" height="29" src="data:image/png;base64,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"/>（ ）。

A.?<img width="16" height="41" src="data:image/png;base64,R0lGODlhEAApAHcAMSH+GlNvZnR3YXJlOiBNaWNyb3NvZnQgT2ZmaWNlACH5BAEAAAAALAMABAAJACIAhAAAAAAAAAAAMx0dSAAcSAAzWh0zWh1GbDMAADIAHTIAMjNbgEgcAEceM1ozAFozHUhZf11/f0huf2xGHX9ZSH9/XX9uSGaIiIBbM4BuboiIZgECAwECAwECAwECAwECAwU/ICAiQSCe5xQs6Mm0aAED72zfLHzMZSmcvdJtSCwaAcHkcck8kUwoxelnk8wMswEvQG2pdrDaLNfSijA9wikEADs="/>

B.?<img width="16" height="41" src="data:image/png;base64,R0lGODlhEAApAHcAMSH+GlNvZnR3YXJlOiBNaWNyb3NvZnQgT2ZmaWNlACH5BAEAAAAALAMABAAJACIAhAAAAAAAAAAAMx0dSAAcSB0zWgAzWh1GbDMAADIAHTIAMjNbgEgcAEceM1ozAFozHUhZf11/f0huf2xGHX9ZSH9/XX9uSGaIiIBbM4BuboiIZgECAwECAwECAwECAwECAwU+ICAiQSCe5ySgaMKK1iuLU7nK5nzIzsyWAYJvSCwaRcBk6chsnki5U+MUfRl4voVsIHvIJjLMKUYF3mrJawgAOw=="/>

C.?1

D.?∞

24.[单选题] 某系统的传递函数为<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605612716656081811.png" title="202011171605612716656081811.png" alt="image.png"/>，则其相频特性为（ ）。

A.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605612770025042112.png" title="202011171605612770025042112.png" alt="image.png"/>

B.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605612752711059009.png" title="202011171605612752711059009.png" alt="image.png"/>

C.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605612815771046980.png" title="202011171605612815771046980.png" alt="image.png"/>

D.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605612792300074576.png" title="202011171605612792300074576.png" alt="image.png"/>

25.[单选题] 系统的静态加速度误差系数Ka定义为（ ）。

A.?<img width="88" height="29" src="data:image/png;base64,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"/>

B.?<img width="88" height="29" src="data:image/png;base64,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"/>

C.?<img width="101" height="31" src="data:image/png;base64,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"/>

D.?<img width="95" height="29" src="data:image/png;base64,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"/>

26.[单选题] 某反馈控制系统的传递函数为<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605535333176009114.png" title="202011161605535333176009114.png" alt="image.png"/>，则系统的极点为【 】。

A.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605535448551057838.png" title="202011161605535448551057838.png" alt="image.png"/>

B.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605535383363084667.png" title="202011161605535383363084667.png" alt="image.png"/>

C.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605535408857061303.png" title="202011161605535408857061303.png" alt="image.png"/>

D.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605535426358064323.png" title="202011161605535426358064323.png" alt="image.png"/>

27.[单选题] 外界干扰信号一般作用在（ ）。

A.执行机构

B.测量装置

C.控制对象

D.控制器

28.[单选题] 控制系统中，（ ）。

A.系统阶次越高，系统稳定误差越大

B.系统阶次越高，增益越大，系统稳定误差越小

C.系统型次越高，增益越大，系统稳定误差越小

D.系统型次越高，增益越大，系统稳定误差越大

29.[单选题] <img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605534600214023422.png" title="202011161605534600214023422.png" alt="image.png"/>的拉氏变换为【 】。

A.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605534618455067381.png" title="202011161605534618455067381.png" alt="image.png"/>

B.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605534653100004215.png" title="202011161605534653100004215.png" alt="image.png"/>

C.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605534671975096563.png" title="202011161605534671975096563.png" alt="image.png"/>

D.<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605534635716034649.png" title="202011161605534635716034649.png" alt="image.png"/>

30.[单选题] 典型欠阻尼二阶系统超调量大于5％，则其阻尼的范围为（ ）。

A.0<ξ<0.707

B.ξ>1

C.1>ξ>0.707

D.0<ξ<1

31.[主观填空题] 奈奎斯特图是在复平面内用不同频率的矢量端点轨迹来表示系统的 。

A.

32.[主观填空题] 某系统的稳态斜坡误差为一非零常数，则此系统是 型系统。

A.

33.[主观填空题] 频率特性的表示方法有奈奎斯特图、 和尼柯尔斯图。

A.

34.[主观填空题] 当系统为Ⅱ型系统时，其奈氏图起始于相位角为 的无穷远处，其渐近线为一条平行于实轴的直线。

A.

35.[主观填空题] 若<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/18/202011181605635665710053003.png" title="202011181605635665710053003.png" alt="image.png"/>，则<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/18/202011181605635682381067153.png" title="202011181605635682381067153.png" alt="image.png"/> 。

A.

36.[主观填空题] 积分环节的对数相频特性为<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/18/202011181605629369727019742.png" title="202011181605629369727019742.png" alt="image.png"/> 。

A.

37.[主观填空题] 二阶欠阻尼系统的上升时间、峰值时间和调整时间等指标，反映系统的 。

A.

38.[主观填空题] 降低系统开环增益，可增加系统的幅值裕量和相位裕量，从而 系统的稳定性。

A.

39.[主观填空题] 若负反馈控制系统的前向通道传递函数为<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/15/202011151605455281481054463.png" title="202011151605455281481054463.png" alt="image.png"/>，反馈传递函数为<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/15/202011151605455297946052200.png" title="202011151605455297946052200.png" alt="image.png"/>，则系统的闭环传递函数为 。

A.

40.[主观填空题] 某系统的稳态加速度误差为一非零常数，则此系统是 型系统。

A.

41.[主观填空题] 若系统传递函数的所有零点和极点均在s平面的左半平面内，则该系统称为 ；若系统传递函数有零点或极点在s平面的右半平面内，则该系统称为非最小相位系统。

A.

42.[主观填空题] 大多数控制系统均要求满足稳态精度和相对稳定性，其中稳态精度由系统的 决定，而相对稳定性由相位裕量和幅值裕量来决定。

A.

43.[主观填空题] 系统方框图是系统中各环节的功能和信号流向的 表示方法。

A.

44.[主观填空题] 二阶微分环节的传递函数为 。

A.

45.[主观填空题] 当二阶系统特征方程的根为不相等的负实根时，系统的阻尼比为 。

A.

46.[主观填空题] 单位加速度函数的数学表达式为<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/18/202011181605629779292067536.png" title="202011181605629779292067536.png" alt="image.png"/> 。

A.

47.[主观填空题] 二阶系统的典型环节是 。

A.

48.[主观填空题] 某Ⅰ型系统的开环增益为K，该系统在单位斜坡信号作用下，其稳态误差为 。

A.

49.[主观填空题] 频域性能指标是根据 控制系统的性能要求制定的。

A.

50.[主观填空题] 延时环节的传递函数是 。

A.

51.[主观填空题] 已知象函数为<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605457273011070658.png" title="202011161605457273011070658.png" alt="image.png"/>，则<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/16/202011161605457288965056310.png" title="202011161605457288965056310.png" alt="image.png"/>的初值为 。

A.

52.[主观填空题] 某环节的传递函数为<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/18/202011181605629009372083953.png" title="202011181605629009372083953.png" alt="image.png"/>，该环节是 。

A.

53.[主观填空题] 大多数控制系统均要求满足稳态精度和相对稳定性，其中稳态精度由系统的开环增益决定，而相对稳定性由相位裕量和 来决定。

A.

54.[主观填空题] 某系统的脉冲响应函数为<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605601718252090435.png" title="202011171605601718252090435.png" alt="image.png"/>，则该系统的传递函数为 。

A.

55.[主观填空题] 当系统的输入和输出已知时，求系统结构与参数的问题，称为 。

A.

56.[主观填空题] 控制系统的时间响应曲线从零时刻出发第一次达到并永远保持在某一允许的误差范围所需要的时间称为 。

A.

57.[主观填空题] 当输入与输出均已知时，求系统的结构与参数，以建立系统的数学模型，即 。

A.

58.[主观填空题] 积分环节的对数幅频特性曲线为在<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/15/202011151605448991685052679.png" title="202011151605448991685052679.png" alt="image.png"/>处过零分贝线，且斜率为 的直线。

A.

59.[主观填空题] 稳态误差与开环传递函数、 和输入信号的形式有关。

A.

60.[主观填空题] 已知<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/18/202011181605638281898021553.png" title="202011181605638281898021553.png" alt="image.png"/>，其拉氏反变换<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/18/202011181605638297116082749.png" title="202011181605638297116082749.png" alt="image.png"/> 。

A.

61.[问答题] 绘制系统伯德图的步骤有哪些？

A.

62.[问答题] 控制系统的典型环节主要有哪几种？

A. 福建大学答案

63.[问答题] 时间响应由哪两部分组成？各部分的定义是什么？

A.

64.[问答题] 传递函数的特点有哪些？

A.

65.[问答题] 已知某系统的传递函数为<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/14/202011141605347814312092928.png" title="202011141605347814312092928.png" alt="image.png"/>，试用劳思判据判断该系统的稳定性。

A.

66.[问答题] 单位反馈控制系统的开环传递函数为<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605615907816069133.png" title="202011171605615907816069133.png" alt="image.png"/>，试求

（1）系统的闭环传递函数；

（2）系统的阻尼比<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605615926953081804.png" title="202011171605615926953081804.png" alt="image.png"/>和无阻尼自然频率<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605615946243073628.png" title="202011171605615946243073628.png" alt="image.png"/>；

（3）<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605615971052078581.png" title="202011171605615971052078581.png" alt="image.png"/>时的调整时间<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605616031507016387.png" title="202011171605616031507016387.png" alt="image.png"/>。

A.

67.[问答题] 由质量、弹簧和阻尼器组成的某机械控制系统的传递函数为<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605613247750053303.png" title="202011171605613247750053303.png" alt="image.png"/>。已知质量<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605613269835092095.png" title="202011171605613269835092095.png" alt="image.png"/>，K为弹簧刚度，B为阻尼系数。若外力<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605613294363021767.png" title="202011171605613294363021767.png" alt="image.png"/>，由实验测得稳态输出<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/17/202011171605613319043034025.png" title="202011171605613319043034025.png" alt="image.png"/>，试求K和B各为多少？

A.

68.[问答题] 已知某控制系统在输入信号<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/15/202011151605446588922055601.png" title="202011151605446588922055601.png" alt="image.png"/>的作用下，测得系统的输出响应为<img src="http://zuoye.eduwest.com/resourcefile/uploadFiles/file/questionImgs2018/2020/11/15/202011151605446619784012573.png" title="202011151605446619784012573.png" alt="image.png"/>，试求在初始条件为零时，该系统的传递函数。

A.

附件由
整理，转载注明雅宝答案网

答案来源：www.ybaotk.com

西南大学22年9月0933 机械工程控制基础在线作业资料非答案

本帖子中包含更多资源

天涯海角也要找到Ni：西南大学22年9月0933 机械工程控制基础在线作业资料非答案

相关帖子

浏览过的版块

QQ微信同步：1144766066。

服务

网站

战略合作