成考院校在线答案
- 2022-09-12 [判断] <p class="MsoNormal" style="text-align:left; ">5、<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">传递函数只与系统结构参数有关,与输出量、输入量无关。</span><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">( )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal">12、<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">在自动控制系统中,用来描述系统内在规律的数学模型有许多不同的形式,在以单输入、单输出系统为研究目标的经典控制理论中,常用的模型有微分方程传递函数、动态结构图、频率特性等。</span><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">( )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="text-align:left; ">37、<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">最大超调量只决定于阻尼比</span><span style="font-family:Microsoft Yahei; font-style:italic; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="14" height="22" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgcbk06.files/kzgcbk063295.png"></span>,<span style="font-family:Microsoft Yahei; font-style:italic; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="13" height="21" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgcbk06.files/kzgcbk063319.png"></span>越小,最大超调量越大。<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">( )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal">4、<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">控制系统的构成不同,故其数学模型也不同。</span><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">( )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal">10、<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">在随动(伺服)控制系统中,系统的输入、输出已知,而系统的结构未知。</span><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">( )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="text-align:left; ">3、<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">惯性环节的时间常数越大,则系统的快速性越好。</span><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">( )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="text-align:left; ">16、<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">闭环传递函数中积分环节的个数决定了系统的类型。</span><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">( )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal">32、<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">在控制系统的时域性能指标中,最大超调量</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "><img width="27" height="25" src="http://wljy.whut.edu.cn//uploadfiles/word/kzgcbk05.files/kzgcbk05458.png"></span>衡量的是系统的稳定性指标。<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">( )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal">26、<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">用劳斯表判断连续系统的稳定性,当它的第一列系数全部为正数,系统是稳定的</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">。</span><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">( )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="text-align:left; ">20、<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">一阶系统的单位阶跃响应曲线会有超调。</span><span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">( )</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "> <o:p></o:p></span></p>