Faculty Advisor: Dr. Han P. Bao Group Leader: Parker Harding Group Members: Christina Toroc Hunter Hughes Deborah C. McHugh
Introduction “The goal of this project is to design a rack to store various sized spools that contain expensive power cables.” Cables supply power to the ships Cable spools are currently stored on the ground They are getting damaged due to the sun, weather, & waterfront activity Safety hazard Disorganized Spools in front are being used more than those in the back
Design Parameters Area 120’ x 84’ Ground is relatively flat; an exception is where the drain is located Maximum height forklift can handle ft Blades 8’x 8” wide x 3” thick, 25K Forklift 15’ long x 8’ wide
Problem Definition Racks need to be adaptable to different sized spools Cables must be stored in the allotted area Forklift will be used to load & unload the rack
Grey & Yellow Spools
Design Details Constructed of structural steel I-beams & square tubing Welded connections 2 levels of storage available Forklift accessible from both sides First in-last out or first in first out spools picking, ensures all spools are utilized
Forklift Attachment
Single Unit Cell
2x2 Structure
Side View of 2x2
Environmental Protection Warehouse Storage Likely means of storage Portable Building Alternative means of storage Polyolefin Covered Shelters 5-8 yr lifetime expectancy Bolted construction, to withstand up to 70 mph winds Can be manufactured to withstand up to 110 mph winds Flame retardant, UV, & mildew treated 5 year pro-rated warranty
Materials Required Cable Storage Rack:
Forklift Blades Accessory:
FEA – Bending Stress – Max: 6,720 psi Factor of Safety: (P) 5.36 (H) 5.80
Connections
FEA - Plate Stress - Max: 14,200 psi Factor of Safety: (P) 2.54
FEA - Displacement - Max:.0695 in
Material Analysis Forklift Assembly: Component Size (in) Length Cut to Size (in) Quantity Needed Each Price (US $) Total Cost (US $) Forklift Sleeve/Rectangular Tubing 10 x 4 x 1/4582$152.46$ Circular RodD= $58.39 Triangular Brace (cut from Plate)3 x 4 4$25.38$ Total Cost for Forklift Assembly$ Cost of Each Component for a 2 x 2 Modular Structure: Component Size (in) Length Cut to Size (in) Quantity Needed Each Price (US $) Total Cost (US $) HSS Column4 x 4 x 1/2989$248.76$2, Plates 10 x 10 x 1 9$45.15$ I-beams8 x $105.08$2, Spool Support4 x 4 x 1/ $203.50$3, Triangular Brace (cut from Plate)3 x 4 36$25.38$ Total Cost for 2 x 2 Structure$9,336.79
Labor Analysis Man day rate (loaded rate) # of workers needed # of days for Project Completion Total Cost of Labor $ $2,244.00
Grand Total Grand Total Cost of Project (for 2x2 modular structure)$11, Components Cost for a New Spool Cost for Cable # of Spools Total Cost for Spools with Cables Spool & Cable Value$700.00$20,0008$165,600.00
Gantt Chart
References "A992 Hot Rolled Wide Flange I-beam." OnlineMetalStore.com. N.p., Web. 23 Mar "American Standard Steel Channels." The Engineering Toolbox. The Engineering Toolbox, n.d. Web. 21 Mar Budynas, Richard G., and J. Keith Nisbett. Shigley's Mechanical Engineering Design. 9th ed. New York, NY: McGraw-Hill, Print. "Galvanized Steel Channel." OnlineMetalStore.com. N.p., Web. 23 Mar "Mechanical/Structural Steel Tubing." OnlineMetalStore.com. N.p., Web. 23 Mar "Services." Southern Comfort Shelters. Southern Comfort Shelters, n.d. Web. 21 Mar "Structural Steel Tubing." Saginaw Pipe. Saginaw Pipe, n.d. Web. 21 Mar "Wide Flange Steel Beams." Saginaw Pipe. Saginaw Pipe, n.d. Web. 21 Mar
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