BACHELOR OF MECHANICAL ENGINEERING (HONS)
COMPONENT DESIGN
JUNE 2020 SEMESTER
INDIVIDUAL PROJECT
TITLE: CRANE DESIGN
SUBMISSION / DUE DATE: OCTOBER 10, 2020
LECTURER:
Student Name ID Number
, ABSTRACT
This report consists of design analysis of jib crane used on truck. The design is based on
reference geometry and is set a maximum load of 150 kg. The design consideration which
emphasized on assumptions and uncertainties are outlined. This include the effect of weldments
and bolts to the nearby member as well as the vibration factor as the crane will be operating on
a moving truck. The design methodology of each components starting from the boom to the
hoist cylinder is addressed with framework calculations and weldments as well as bolts are
analysed. The design factor is set to be 3.0 minimum as addressed by Crane Manufacturers
Association of America (CMAA). To standardize the calculations, all formulas are taken from
Shingley’s Mechanical Engineering Design textbook. The components are modelled and
simulated by using SolidWorks 2018.
i
, CONTENTS
ABSTRACT……………………………………………………………………………………i
1.0 INTRODUCTION……………………………………………………………………..2
1.1 THEORETICAL BACKGROUND…………………………………………...4
2.0 DESIGN CONSIDERATIONS……………………………………………………….6
3.0 DESIGN OF CRANE…………………………………………………………………8
3.1 OVERVIEW…………………………………………………………………..8
3.2 FRAMEWORK ANALYSIS………………………………………………….9
3.3 DESIGN OF BOOM…………………………………………………………11
3.4 DESIGN FOR REPEATED LOAD………………………………………….13
3.5 WELDMENTS……………………………………………………………….13
3.6 BOLTS……………………………………………………………………….15
3.7 HOIST MECHANISM……………………………………………………….15
4.0 REFERENCES……………………………………………………………………….18
APPENDIX A………………………………………………………………………………..19
APPENDIX B………………………………………………………………………………..22
APPENDIX C………………………………………………………………………………..23
APPENDIX D………………………………………………………………………………..25
, 1.0 INTRODUCTION
Cranes in general are made to lifting certain loads that are not possible to be lifted easily with
bare hand. There are many types of cranes powered by drives, hydraulic or electricity in today’s
world serving various purposes and applications which include construction, manufacturing
processes, towing and small uses of lifting items to ease the working procedures. One of the
widest known application of the small-serving crane is called jib crane and can be used either
with mobile roller, fixed support or on the back of a pickup truck. Figure 1.1 below shows the
jib crane used on a truck.
Figure 1.1: Jib crane on a truck used for lifting the steel bars
Upon designing the jib crane or any crane in general, the first aspect of safety is the main key
area to focus on. The crane must be workable which means that it is able to lift the assigned
load range without toppling or failing anywhere on the components of the crane. The small jib
crane might not consist of so many components like the heavy-duty construction cranes but the
main working components are mere same and should be included into design analysis. This
includes the base of the crane, the boom or main section, boom hoist or lifting cylinder, boom
tip which is connected with the load line and hook as well as the supporting components such
as counterweight and boom hinge. See Figure 1.2 for the labelled components.
2
COMPONENT DESIGN
JUNE 2020 SEMESTER
INDIVIDUAL PROJECT
TITLE: CRANE DESIGN
SUBMISSION / DUE DATE: OCTOBER 10, 2020
LECTURER:
Student Name ID Number
, ABSTRACT
This report consists of design analysis of jib crane used on truck. The design is based on
reference geometry and is set a maximum load of 150 kg. The design consideration which
emphasized on assumptions and uncertainties are outlined. This include the effect of weldments
and bolts to the nearby member as well as the vibration factor as the crane will be operating on
a moving truck. The design methodology of each components starting from the boom to the
hoist cylinder is addressed with framework calculations and weldments as well as bolts are
analysed. The design factor is set to be 3.0 minimum as addressed by Crane Manufacturers
Association of America (CMAA). To standardize the calculations, all formulas are taken from
Shingley’s Mechanical Engineering Design textbook. The components are modelled and
simulated by using SolidWorks 2018.
i
, CONTENTS
ABSTRACT……………………………………………………………………………………i
1.0 INTRODUCTION……………………………………………………………………..2
1.1 THEORETICAL BACKGROUND…………………………………………...4
2.0 DESIGN CONSIDERATIONS……………………………………………………….6
3.0 DESIGN OF CRANE…………………………………………………………………8
3.1 OVERVIEW…………………………………………………………………..8
3.2 FRAMEWORK ANALYSIS………………………………………………….9
3.3 DESIGN OF BOOM…………………………………………………………11
3.4 DESIGN FOR REPEATED LOAD………………………………………….13
3.5 WELDMENTS……………………………………………………………….13
3.6 BOLTS……………………………………………………………………….15
3.7 HOIST MECHANISM……………………………………………………….15
4.0 REFERENCES……………………………………………………………………….18
APPENDIX A………………………………………………………………………………..19
APPENDIX B………………………………………………………………………………..22
APPENDIX C………………………………………………………………………………..23
APPENDIX D………………………………………………………………………………..25
, 1.0 INTRODUCTION
Cranes in general are made to lifting certain loads that are not possible to be lifted easily with
bare hand. There are many types of cranes powered by drives, hydraulic or electricity in today’s
world serving various purposes and applications which include construction, manufacturing
processes, towing and small uses of lifting items to ease the working procedures. One of the
widest known application of the small-serving crane is called jib crane and can be used either
with mobile roller, fixed support or on the back of a pickup truck. Figure 1.1 below shows the
jib crane used on a truck.
Figure 1.1: Jib crane on a truck used for lifting the steel bars
Upon designing the jib crane or any crane in general, the first aspect of safety is the main key
area to focus on. The crane must be workable which means that it is able to lift the assigned
load range without toppling or failing anywhere on the components of the crane. The small jib
crane might not consist of so many components like the heavy-duty construction cranes but the
main working components are mere same and should be included into design analysis. This
includes the base of the crane, the boom or main section, boom hoist or lifting cylinder, boom
tip which is connected with the load line and hook as well as the supporting components such
as counterweight and boom hinge. See Figure 1.2 for the labelled components.
2
