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