Problem 1 (Scissor jack. Assume static loading) Design a scissor jack for a typical vehicle. • • Specify design considerations/requirements (weight to be lifted, initial position, final position, safety factor, etc.) Specify dimensions and select material for all members. Use the same design channel (Ex. U-channel) for the 4 major members. Consider buckling if the member is under compression. Specify thread dimension (including engagement length) for the center/horizontal member. 1. Scissor Jack (25 pts) 1.1 Free body diagram (1pts) (Front and Side view) *Schematic drawings must include clean lines (if hand drawn) and dimensions shown/indicated and Force/Moments. *Additional Solidworks, or other 3D model software can be used will give (2 bonus point for each problem) 1.2 Assumptions, Restrictions, Weight, and Stress Capacity (1pts) 1.3 Specific Material and Geometry/Dimensions (2pts) (Cross-sectional Area, Rod, Beam, etc) 1.4 Formulas used, Specific Analysis used, and discussion on why they were chosen (5pts) (neat representation of calculations, Tables, Figures, etc) Analysis - - - Static (ductile/brittle) Fatigue Buckling (long, short, crooked, eccentric) Mohr Circle Considerations - - Beam and Shaft/Bar Column and Cylinder Tolerance and Fit Fasteners and Spring 1.5 Results and discussion (10pts) (Results represented in a table) (Summery of design - compare to pre-existing) Answers to specific questions Discussion of load - what type of vehicle can it handle safely (Design factor used in discussion on why a design was chosen. NOTE N > 3, but should not be too high. That would be poor design. Not all the problems/equipment need to be able to handle every vehicle option. Just a range.) 1.6 Appendix 1.6.1 Reference/Citation: Websites, Charts, Standards, Textbook, etc (1pts) (show in table) 1.6.2 Include ALL hand calculations (clean images (no blurry or at an angle), process clearly shown) (5pt) Repeat format for other problems 2. Spring loaded hydraulic Jack or Lift 3. Trolley Crane 4. Hitch Design
Problem 1 (Scissor jack. Assume static loading) Design a scissor jack for a typical vehicle. • • Specify design considerations/requirements (weight to be lifted, initial position, final position, safety factor, etc.) Specify dimensions and select material for all members. Use the same design channel (Ex. U-channel) for the 4 major members. Consider buckling if the member is under compression. Specify thread dimension (including engagement length) for the center/horizontal member. 1. Scissor Jack (25 pts) 1.1 Free body diagram (1pts) (Front and Side view) *Schematic drawings must include clean lines (if hand drawn) and dimensions shown/indicated and Force/Moments. *Additional Solidworks, or other 3D model software can be used will give (2 bonus point for each problem) 1.2 Assumptions, Restrictions, Weight, and Stress Capacity (1pts) 1.3 Specific Material and Geometry/Dimensions (2pts) (Cross-sectional Area, Rod, Beam, etc) 1.4 Formulas used, Specific Analysis used, and discussion on why they were chosen (5pts) (neat representation of calculations, Tables, Figures, etc) Analysis - - - Static (ductile/brittle) Fatigue Buckling (long, short, crooked, eccentric) Mohr Circle Considerations - - Beam and Shaft/Bar Column and Cylinder Tolerance and Fit Fasteners and Spring 1.5 Results and discussion (10pts) (Results represented in a table) (Summery of design - compare to pre-existing) Answers to specific questions Discussion of load - what type of vehicle can it handle safely (Design factor used in discussion on why a design was chosen. NOTE N > 3, but should not be too high. That would be poor design. Not all the problems/equipment need to be able to handle every vehicle option. Just a range.) 1.6 Appendix 1.6.1 Reference/Citation: Websites, Charts, Standards, Textbook, etc (1pts) (show in table) 1.6.2 Include ALL hand calculations (clean images (no blurry or at an angle), process clearly shown) (5pt) Repeat format for other problems 2. Spring loaded hydraulic Jack or Lift 3. Trolley Crane 4. Hitch Design
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
Related questions
Question
Design a scissor jack for a typical vehicle.
• Specify design considerations/requirements (weight to be lifted, initial position, final position, safety factor,
etc.)
• Specify dimensions and select material for all members. Use the same design channel (Ex. U-channel) for
the 4 major members. Consider buckling if the member is under compression. Specify thread dimension
(including engagement length) for the center/horizontal member
Transcribed Image Text:Problem 1 (Scissor jack. Assume static loading)
Design a scissor jack for a typical vehicle.
•
•
Specify design considerations/requirements (weight to be lifted, initial position, final position, safety factor,
etc.)
Specify dimensions and select material for all members. Use the same design channel (Ex. U-channel) for
the 4 major members. Consider buckling if the member is under compression. Specify thread dimension
(including engagement length) for the center/horizontal member.
Transcribed Image Text:1. Scissor Jack (25 pts)
1.1 Free body diagram (1pts)
(Front and Side view)
*Schematic drawings must include clean lines (if hand drawn) and dimensions shown/indicated and
Force/Moments.
*Additional Solidworks, or other 3D model software can be used will give (2 bonus point for each
problem)
1.2 Assumptions, Restrictions, Weight, and Stress Capacity (1pts)
1.3 Specific Material and Geometry/Dimensions (2pts)
(Cross-sectional Area, Rod, Beam, etc)
1.4 Formulas used, Specific Analysis used, and discussion on why they were chosen (5pts)
(neat representation of calculations, Tables, Figures, etc)
Analysis
-
-
-
Static (ductile/brittle)
Fatigue
Buckling (long, short, crooked, eccentric)
Mohr Circle
Considerations
-
-
Beam and Shaft/Bar
Column and Cylinder
Tolerance and Fit
Fasteners and Spring
1.5 Results and discussion (10pts)
(Results represented in a table)
(Summery of design - compare to pre-existing)
Answers to specific questions
Discussion of load - what type of vehicle can it handle safely (Design factor used in discussion on why
a design was chosen. NOTE N > 3, but should not be too high. That would be poor design. Not all the
problems/equipment need to be able to handle every vehicle option. Just a range.)
1.6 Appendix
1.6.1
Reference/Citation: Websites, Charts, Standards, Textbook, etc (1pts)
(show in table)
1.6.2 Include ALL hand calculations (clean images (no blurry or at an angle), process clearly shown)
(5pt)
Repeat format for other problems
2. Spring loaded hydraulic Jack or Lift
3. Trolley Crane
4. Hitch Design
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