MOOC Mechanical Engineering Design(北京交通大学)1003367012 最新慕课完整章节测试答案
Chapter 1 Basic principle of mechanical and electronic system
文章目录
Basic principle of mechanical and electronic system
1、单选题：
In mechanical design, what the design must achieve is .
选项：
A: physical size
B: principle
C: function requirements
D: mechanism
答案: 【 function requirements】
2、单选题：
In concept design, we can check the feasible solution by .
选项：
A: experiments
B: analysis
C: Synthesis
D: production
答案: 【 analysis】
3、单选题：
The of mechanical parts can be generated according to the dimensional and tool-path information in the model.
选项：
A: manufacture
B: Shape
C: function
D: prototype
答案: 【 manufacture】
4、多选题：
There is normally an order to how functions occur with flowing in and out.
选项：
A: nuclear
B: energy
C: materials
D: information
答案: 【 energy;
materials;
information】
5、多选题：
The concept design contains the activities including .
选项：
A: function modeling
B: behavior modeling
C: structure modeling
D: assessment and decision-making
答案: 【 function modeling ;
behavior modeling;
structure modeling;
assessment and decision-making】
6、多选题：
SAE Cycle of Systems Engineering includes .
选项：
A: synthesis
B: simulation
C: analysis
D: evaluation
答案: 【 synthesis;
analysis ;
evaluation】
7、判断题：
In mechanical engineering design, we usually calculate before defining.
选项：
A: 正确
B: 错误
答案: 【 错误】
8、判断题：
We can decompose the whole function into sub-functions and multilevel sub-functions by function deformation in the concept design.
选项：
A: 正确
B: 错误
答案: 【 正确】
9、判断题：
Iteration, moving from any step back to any previous step, is required within entire process,
选项：
A: 正确
B: 错误
答案: 【 正确】
10、填空题：
The of applying the various techniques and scientific principles for the purpose of defining a device is mechanical engineering design.
答案: 【 process】
11、填空题：
A system is a collection of that are organized for common purpose.
答案: 【 components##%_YZPRLFH_%##parts】
12、填空题：
The is a carrier that is able to conduct the required behaviors and predetermined functions.
答案: 【 structure】
Chapter 2 Design of mechatronic system
Design of mechatronic system
1、单选题：
In NC Machine System, PLC is .
选项：
A: actuator
B: controller
C: sensor
D: power
答案: 【 controller】
2、单选题：
The field of Mechatronics is intersection of mechanical, electrical, and .
选项：
A: computer science
B: system design
C: electricity technology
D: robot science
答案: 【 computer science】
3、单选题：
The motor is used as in the mechatronic system.
选项：
A: support
B: sensor
C: actuator
D: controller
答案: 【 actuator】
4、多选题：
The design of mechatronic product is based on .
选项：
A: control theory
B: information theory
C: mechanism theory
D: system theory
答案: 【 control theory;
information theory ;
system theory】
5、多选题：
Main components in mechatronic system include .
选项：
A: mechanical structure
B: sensors
C: power source
D: microcontroller
答案: 【 mechanical structure;
sensors;
power source;
microcontroller】
6、判断题：
Detail Function of mechatronic system includes power, sense, control, action, support.
选项：
A: 正确
B: 错误
答案: 【 正确】
7、判断题：
Information theory studies the quantification, storage, and communication of continuous signal.
选项：
A: 正确
B: 错误
答案: 【 错误】
8、判断题：
Machine theory is for defining the architecture, modules, interfaces, and data for a system to satisfy specified requirements.
选项：
A: 正确
B: 错误
答案: 【 错误】
9、填空题：
The essential characteristic of mechatronics is .
答案: 【 intelligent】
10、填空题：
Human interfaces and design is important for application of mechatronic system.
答案: 【 software】
Chapter 3 Precision machine design
Precision machine design
1、单选题：
When we design support for screw, which is mostly suitable for high rigidity, high speed, high precision screw drive system?
选项：
A: double push-simply supported mode
B: single push-single push mode
C: double push-double push mode
D: double push-free mode
答案: 【 double push-double push mode】
2、单选题：
The parameter indicate the diameter of the cylinder enveloped by the ball center when the ball and the thread roller path are under theoretical contact angle.
选项：
A: minimum diameter
B: ball diameter
C: maximum diameter
D: nominal diameter
答案: 【 nominal diameter】
3、单选题：
which one is not the way to reduce transmission error for mechanical trasmission chain?
选项：
A: reduce the weight of the parts
B: increase the precision of the parts
C: design reasonable transmission chain
D: adapt the clearance elimination mechanism
答案: 【 reduce the weight of the parts】
4、单选题：
Which result is not caused by viscous damping increment?
选项：
A: increase the steady state error
B: slow the response
C: attenuate the amplitude of vibration
D: increase the natural frequency
答案: 【 increase the natural frequency】
5、单选题：
How can we reduce the moment of inertia?
选项：
A: raise transmision stiffness
B: choose the best transmission ratio
C: use transmission parts with low friction
D: eliminate the clearance of transmission chain
答案: 【 choose the best transmission ratio】
6、单选题：
Which indicates the variation between the actual value of the output shaft rotation angle and the theoretical value?R