Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Machine Design > Machine Design Definition > Flashcards

Machine Design Definition Flashcards

1
Q

is the creation of new and better machines and improving the existing ones

A

Machine Design

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

In designing a machine component, it is necessary to have a good knowledge of many subjects such as

A

Mathematics, Engineering Mechanics, Strength of Materials, Theory of Machines, Workshop Processes and Engineering Drawing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the different types of classification of design?

A

Adaptive Design
Development Design
New Design

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

This type of design needs no special knowledge or skill and can be attempted by designers of ordinary technical training

A

Adaptive design

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The designer only makes minor alternation or modification in the existing designs of the product.

A

Adaptive design

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Adaptive design

A

This type of design needs no special knowledge or skill and can be attempted by designers of ordinary technical training.The designer only makes minor alternation or modification in the existing designs of the product.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

This type of design needs considerable scientific training and design ability in order to modify the existing designs into a new idea by adopting a new material or different method of manufacture.In this case, though the designer starts from the existing design, but the final product may differ quite markedly from the original product.

A

Development design

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Development design

A

This type of design needs considerable scientific training and design ability in order to modify the existing designs into a new idea by adopting a new material or different method of manufacture. In this case, though the designer starts from the existing design, but the final product may differ quite markedly from the original product.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

This type of design needs lot of research, technical ability and creative thinking. Only those designers who have personal qualities of a sufficiently high order can take up the work of this design.

A

New design.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the classifications of New Design?

A

Rational Design
Empirical Design
Industrial Design
Optimum Design

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the other types of design?

A

System Design
Element Design
Computer Aided Design

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

This type of design depends upon mathematical formulae of principle of mechanics.

A

Rational design.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

This design considers the factors such as the forces, motions then include this factors in computations (using the mechanics and dynamics of rigid and deformable bodies) and from the results, design are made

A

Rational design.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

This type of design depends upon mathematical formulae of principle of mechanics.
This design considers the factors such as the forces, motions then include this factors in computations (using the mechanics and dynamics of rigid and deformable bodies) and from the results, design are made.

A

Rational design

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Rational design

A

This type of design depends upon mathematical formulae of principle of mechanics.
This design considers the factors such as the forces, motions then include this factors in computations (using the mechanics and dynamics of rigid and deformable bodies) and from the results, design are made.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Empirical design

A

This type of design depends upon empirical formulae based on the practice and past experience.
Because of experience and continual making of designs, the designer can make designs based from experience and practice. They can predict and assume what will happen to the design.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

This type of design depends upon empirical formulae based on the practice and past experience

A

Empirical design.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Because of experience and continual making of designs, the designer can make designs based from experience and practice. They can predict and assume what will happen to the design.

A

Empirical design

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

This type of design depends upon the production aspects to manufacture any machine component in the industry.
This design is for mass production. It can be influenced by factors as varied as materials, production processes, business strategy, and prevailing social, commercial, or aesthetic attitudes.

A

Industrial design.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Industrial design.

A

This type of design depends upon the production aspects to manufacture any machine component in the industry.
This design is for mass production. It can be influenced by factors as varied as materials, production processes, business strategy, and prevailing social, commercial, or aesthetic attitudes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

This type of design depends upon the production aspects to manufacture any machine component in the industry.

A

Industrial design.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

This design is for mass production. It can be influenced by factors as varied as materials, production processes, business strategy, and prevailing social, commercial, or aesthetic attitudes.

A

Industrial design

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

It is the best design for the given objective function under the specified constraints. It may be achieved by minimizing the undesirable effects.
This design is fitted only on such requirements and cannot be used in other applications. All of the factors considered are just on that specific application and that it cannot be used to other functions. Example, bottle opener.

A

Optimum design

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Optimum design

A

It is the best design for the given objective function under the specified constraints. It may be achieved by minimizing the undesirable effects.
This design is fitted only on such requirements and cannot be used in other applications. All of the factors considered are just on that specific application and that it cannot be used to other functions. Example, bottle opener.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
. It is the best design for the given objective function under the specified constraints. It may be achieved by minimizing the undesirable effects
Optimum design
26
This design is fitted only on such requirements and cannot be used in other applications. All of the factors considered are just on that specific application and that it cannot be used to other functions. Example, bottle opener.
Optimum design
27
. It is the design of any complex mechanical system like a motor car
System design
28
System design
It is the design of any complex mechanical system like a motor car
29
Element design
It is the design of any element of the mechanical system like piston, crankshaft, connecting rod, etc.
30
Computer aided design
This type of design depends upon the use of computer systems to assist in the creation, modification, analysis and optimization of a design.
31
This type of design depends upon the use of computer systems to assist in the creation, modification, analysis and optimization of a design.
Computer aided design
32
It is the design of any element of the mechanical system like piston, crankshaft, connecting rod, etc.
Element design
33
What are the General Considerations in Machine Design?
1.Type of load and stresses caused by the load. 2.Motion of the parts or kinematics of the machine 3.Selection of materials 4.Form and size of the parts. 5.Frictional resistance and lubrication. 6.Convenient and economical features. 7.Use of standard parts. 8.Safety of operation 9.Workshop facilities 10.Number of machines to be manufactured. 11.Cost of construction 12.Assembling
34
Type of load and stresses caused by the load.
The load, on a machine component, may act in several ways due to which the internal stresses are set up.
35
The load, on a machine component, may act in several ways due to which the internal stresses are set up.
Type of load and stresses caused by the load
36
Motion of the parts or kinematics of the machine
The successful operation of any machine depends largely upon the simplest arrangement of the parts which will give the motion required
37
What are the different kinds of motion a part can do?
1.Rectilinear Motion 2.Curvilinear motion 3.Constant Velocity 4.Constant or Variable Acceleration
38
The successful operation of any machine depends largely upon the simplest arrangement of the parts which will give the motion required.
Motion of the parts or kinematics of the machine.
39
includes unidirectional and reciprocating motions
Rectilinear motion
40
Rectilinear motion
includes unidirectional and reciprocating motions
41
includes rotary, oscillatory and simple harmonic
Curvilinear motion
42
Curvilinear motion
includes rotary, oscillatory and simple harmonic
43
Selection of materials
It is essential that a designer should have a thorough knowledge of the properties of the materials and their behavior under working conditions. Some of the important characteristics of materials are: strength, durability, flexibility, weight, resistance to heat and corrosion, ability to cast, welded or hardened, machinability, electrical conductivity, etc.
44
It is essential that a designer should have a thorough knowledge of the properties of the materials and their behavior under working conditions. Some of the important characteristics of materials are: strength, durability, flexibility, weight, resistance to heat and corrosion, ability to cast, welded or hardened, machinability, electrical conductivity, etc.
Selection of materials
45
Form and size of the parts
The form and size are based on judgement. The smallest practicable cross-section may be used, but it may be checked that the stresses induced in the designed cross-section are reasonably safe. In order to design any machine part for form and size, it is necessary to know the forces which the part must sustain. It is also important to anticipate any suddenly applied or impact load which may cause failure.
46
The form and size are based on judgement. The smallest practicable cross-section may be used, but it may be checked that the stresses induced in the designed cross-section are reasonably safe. In order to design any machine part for form and size, it is necessary to know the forces which the part must sustain. It is also important to anticipate any suddenly applied or impact load which may cause failure.
Form and size of the parts
47
Frictional resistance and lubrication
There is always a loss of power due to frictional resistance and it should be noted that the friction of starting is higher than that of running friction. It is, therefore, essential that a careful attention must be given to the matter of lubrication of all surfaces which move in contact with others, whether in rotating, sliding, or rolling bearings.
48
There is always a loss of power due to frictional resistance and it should be noted that the friction of starting is higher than that of running friction. It is, therefore, essential that a careful attention must be given to the matter of lubrication of all surfaces which move in contact with others, whether in rotating, sliding, or rolling bearings.
Frictional resistance and lubrication
49
Convenient and economical features
In designing, the operating features of the machine should be carefully studied. The starting, controlling and stopping levers should be located on the basis of convenient handling.
50
In designing, the operating features of the machine should be carefully studied. The starting, controlling and stopping levers should be located on the basis of convenient handling.
Convenient and economical features
51
Convenient and economical features
The economical operation of a machine which is to be used for production, or for the processing of material should be studied, in order to learn whether it has the maximum capacity consistent with the production of good work
52
Use of standard parts
The use of standard parts is closely related to cost, because the cost of standard or stock parts is only a fraction of the cost of similar parts made to order.
53
The use of standard parts is closely related to cost, because the cost of standard or stock parts is only a fraction of the cost of similar parts made to order.
Use of standard parts
54
Safety of operation
Some machines are dangerous to operate, especially those which are speeded up to insure production at a maximum rate. Therefore, any moving part of a machine which is within the zone of a worker is considered an accident hazard and may be the cause of an injury. It is, therefore, necessary that a designer should always provide safety devices for the safety of the operator. The safety appliances should in no way interfere with operation of the machine.
55
Some machines are dangerous to operate, especially those which are speeded up to insure production at a maximum rate. Therefore, any moving part of a machine which is within the zone of a worker is considered an accident hazard and may be the cause of an injury. It is, therefore, necessary that a designer should always provide safety devices for the safety of the operator. The safety appliances should in no way interfere with operation of the machine.
Safety of operation
56
Workshop facilities
A design engineer should be familiar with the limitations of his employer’s workshop, in order to avoid the necessity of having work done in some other workshop. It is sometimes necessary to plan and supervise the workshop operations and to draft methods for casting, handling and machining special parts.
57
A design engineer should be familiar with the limitations of his employer’s workshop, in order to avoid the necessity of having work done in some other workshop. It is sometimes necessary to plan and supervise the workshop operations and to draft methods for casting, handling and machining special parts.
Workshop facilities
58
Number of machines to be manufactured.
The number of articles or machines to be manufactured affects the design in a number of ways. The engineering and shop costs which are called fixed charges or overhead expenses are distributed over the number of articles to be manufactured.
59
The number of articles or machines to be manufactured affects the design in a number of ways. The engineering and shop costs which are called fixed charges or overhead expenses are distributed over the number of articles to be manufactured.
Number of machines to be manufactured.
60
Cost of construction
The cost of construction of an article is the most important consideration involved in design. In some cases, it is quite possible that the high cost of an article may immediately bar it from further considerations. If an article has been invented and tests of handmade samples have shown that it has commercial value, it is then possible to justify the expenditure of a considerable sum of money in the design and development of automatic machines to produce the article, especially if it can be sold in large numbers.
61
The cost of construction of an article is the most important consideration involved in design. In some cases, it is quite possible that the high cost of an article may immediately bar it from further considerations. If an article has been invented and tests of handmade samples have shown that it has commercial value, it is then possible to justify the expenditure of a considerable sum of money in the design and development of automatic machines to produce the article, especially if it can be sold in large numbers.
Cost of construction
62
Assembling
Every machine or structure must be assembled as a unit before it can function. Large units must often be assembled in the shop, tested and then taken to be transported to their place of service.
63
. Every machine or structure must be assembled as a unit before it can function. Large units must often be assembled in the shop, tested and then taken to be transported to their place of service.
Assembling
64
Recognition of need
First of all, make a complete statement of the problem, indicating the need, aim or purpose for which the machine is to be designed.
65
First of all, make a complete statement of the problem, indicating the need, aim or purpose for which the machine is to be designed.
Recognition of need
66
Synthesis (Mechanisms)
Select the possible mechanism or group of mechanisms which will give the desired motion
67
Select the possible mechanism or group of mechanisms which will give the desired motion
Synthesis (Mechanisms)
68
Analysis of forces
Find the forces acting on each member of the machine and the energy transmitted by each member.
69
Find the forces acting on each member of the machine and the energy transmitted by each member.
Analysis of forces
70
Material selection
Select the material best suited for each member of the machine.
71
Select the material best suited for each member of the machine.
Material selection
72
Design of elements (Size and Stresses
Find the size of each member of the machine by considering the force acting on the member and the permissible stresses for the material used. It should be kept in mind that each member should not deflect or deform than the permissible limit.
73
Find the size of each member of the machine by considering the force acting on the member and the permissible stresses for the material used. It should be kept in mind that each member should not deflect or deform than the permissible limit.
Design of elements (Size and Stresses
74
Modification
Modify the size of the member to agree with the past experience and judgment to facilitate manufacture. The modification may also be necessary by consideration of manufacturing to reduce overall cost.
75
Modify the size of the member to agree with the past experience and judgment to facilitate manufacture. The modification may also be necessary by consideration of manufacturing to reduce overall cost.
Modification
76
Detailed drawing.
Draw the detailed drawing of each component and the assembly of the machine with complete specification for the manufacturing processes suggested.
77
Draw the detailed drawing of each component and the assembly of the machine with complete specification for the manufacturing processes suggested.
Detailed drawing.
78
Production.
The component, as per the drawing, is manufactured in the workshop.
79
The component, as per the drawing, is manufactured in the workshop.
Production.

Machine Design (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions