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

Welding: Principles and Applications (MindTap Course List)

8th Edition

ISBN:9781305494695

Author:Larry Jeffus

Publisher:Larry Jeffus

Chapter22: Welding Joint Design And Welding Symbols

Section: Chapter Questions

Problem 4R: Sketch a V-grooved butt joint, and label all of the joint's dimensions.

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