害驳请搔廉高灸杰从蝗错趴临
对应课程:点击查看
起止时间:2021-08-05到2021-10-31
更新状态:已完结
Chapter 2： Free Vibration of Single-Degree-of-Freedom Systems Quiz one
1、 Stiffness increases when the natural frequency (); The mass increases when the natural frequency ().
A:increase increase
B:decrease increase
C:increase decrease
D:decrease decrease
答案: decrease increase
2、 The theoretical basis of using energy method to find the natural frequency of the system is ().
A:Theorem of moment of momentum
B:The kinetic energy theorem
C:Law of conservation of mechanical energy
D:The momentum theorem
答案: Law of conservation of mechanical energy
3、 For the following free vibration system, which one decays the fastest ().
A:Undamped system
B:Underdamped system
C:Critical damping system
D:Overdamped system
答案: Critical damping system
4、 The amplitude of an undamped system varies with time. ()
A:正确
B:错误
答案: 正确
5、 The maximum acceleration of the simplified harmonic vibration of a spring mass system is a, and the natural frequency of the system is ω. What is the maximum velocity of the system ? ()
答案: a/ω
Chapter 3： Harmonically Excited Vibration of SDOF systems Quiz two
1、 The response of an undamped system under resonance will be () ?
A:very large
B:infinity
C:zero
D:very small
答案: infinity
2、 The frequency of beating is () ?
A:ωn-ω
B:ωn
C:ω
D:2ωn
答案: ωn-ω
3、 The complex frequency response, H(iω), is defined by () ?
A:X/F0
B:kX/F0
C:XF0
D:F0/kX
答案: kX/F0
4、 The magnification factor is also known as _____ factor.
答案: amplification
5、 The phenomenon of _____ can occur when the forcing frequency is close to the natural frequency of the system.
答案: resonance
Chapter 4： Vibration Under General Forcing Condition Quiz three
1、 If a system is subjected to a suddenly applied nonperiodic force, the response will be_?
A:periodic
B:transient
C:steady
D:zero
答案: transient
2、 The equation of motion of a system subjected to base excitation, y(t), is given by
A:
B:
上方为免费预览版答案，如需购买完整答案，请点击下方红字：
为了方便下次阅读，建议在浏览器添加书签收藏本网页
添加书签方法：
1.电脑按键盘的Ctrl键+D键即可收藏本网页
2.手机浏览器可以添加书签收藏本网页
点击浏览器底部菜单-【添加书签】-收藏本网页
点击浏览器底部菜单-【书签/历史】-可查看本网页
获取更多慕课答案，欢迎在浏览器访问我们的网站：
http://mooc.mengmianren.com
注：请切换至英文输入法输入域名，如果没有成功进入网站，请输入完整域名：http://mooc.mengmianren.com/
我们的公众号
打开手机微信，扫一扫下方二维码，关注微信公众号：萌面人APP
本公众号可查看各种网课答案，还可免费查看大学教材答案
点击这里，可查看公众号功能介绍
APP下载
APP功能说明
1.可查看各种网课答案
点击【萌面人官网】，可查看知到智慧树，超星尔雅学习通，学堂在线等网课答案
点击【中国大学慕课答案】，可查看mooc慕课答案
2.可一键领取淘宝/天猫/京东/拼多多无门槛优惠券
如图所示，点击对应图标即可领取淘宝/天猫/京东/拼多多无门槛优惠券
穆蛙簇嘶玲踩虐洪笛陌来停挫