- Key Questions
- Functional Decomposition
- Concept Development
- Feasibility Analysis
- Engineering Requirements
- Morphological Chart
- Concept Selection
- Systems Architecture
- Risk Assessment
- Plans for Next Phase
Entering System Design Phase
- How can we utilize vertical space? – Open
- Can we re-purpose the SureHands Lift (only hydraulic cylinder remaining)? – Closed
- What can we benchmark against? – Closed
- What U.S. safety codes, ergonomic, and human factor standards/regulations do we need to adhere to? – Open
- How can we utilize mechanical advantage? – Closed
- Can we address/help grant tracking? – Not yet addressed
During/Exiting System Design Phase
- How do we manage a storage facility with many different equipment storage needs? – Closed
- How do we utilize the loft and ladder? – Open
- How do we store the adapted bicycles? – Open
- How do we store the golf carts? – Open
- How do we make loading and unloading the truck easier? – Open
- How do we want to address the working SureHands Hoyer Lift? – Open
The Functional Decomposition can be accessed here - Functional Decomposition
The Benchmarking document can be accessed here - Benchmarking
Initial List of IdeasAccessing Loft:
- Build a Catwalk
- Rolling/Portable Stairs
- Ladder Lift Assist
- Tree-stand/Platform Ladder
- Remove Loft
- Platform with Step Ladder
- Bike Racks
- Single Pulleys
- Pulleys from Ceiling
- Hooks on Wall
- Tilt N' Store
- Swing Rack
Golf Cart Storage:
- Golf Carts on Floor (Single Layer)
- Double Layer Storage - Golf carts driven up ramp
- Double Layer Storage - Golf carts pulled up ramp with winch
- Platform - Store golf carts under and smaller/lighter items above
Platform with Elevator
Ladder Lift Assist
Tilt N' Store
The Engineering Requirements can be accessed here - Engineering Requirements
Tilt N' StoreWhat type of pulley setup would we need to create in order to improve the Mechanical Advantage on our Tilt N' Store design concept? How can we do this at minimal cost?
- We will use a winch device to pull the ropes on the pulley; therefore, we are looking for a pulley setup that will provide a load force that is <100lbs.
- Upper Bound on the weight lifted is 450lbs.
- System is set up to pull straight up and down.
- Lifted Weight needs to travel 7 feet.
- Rope is 5/8 inches thick
- All Cost presented represent an upper bound.
- This is an upper bound measurements on cost. In reality, we may be able to replace pulleys with a double pulley (but this will increase some of our reaction forces, which means we will need stronger pulleys and connections).
- At this upper bound price, we can build two of these pulley systems (excluding the cost of the frame and the fact that we already have 6-8 pulleys available) for approximately $275, using Design 3.
- Alternatively, we may be able to use a chain hoist/block instead of individual pulleys. This would provide a greater Mechanical Advantage but could require more design considerations. However, a chain hoist/block may eliminate the need for large amounts of rope.
2-Level Golf Cart StorageCan golf carts be stored on a 2-level system?
- Carts can weigh up to 900 lbs including cart, batteries, and operator
- Use largest dimensions and treat cart like a rectangular prism for analysis
- Clearance height of 6' set to allow for operator to drive cart under platform without hitting their head
- Largest allowable ramp angle of 20 degrees up from the horizontal
- Apparatus to lift cart would be costly and not reasonable for purchase
- 16' of ramp takes up a lot of space on the already limited floor space
- Ramp would require significant supports along length
- If ramp was removable, it would need to be able to be stored somewhere
- Extra space would need to be considered for operator to get down after parking the cart
Sarah's SectionCan we reduce the physical demand of loading/unloading the truck? How can we do this at minimal cost?
- Needs to be able to lift up to 300 lbs.
- Require employees to lift less than 50 lbs.
- Setup time should be less than 5 minutes.
- Allow for efficient loading/unloading of truck.
The Truck Lift Feasibility Analysis can be accessed here - Truck Lift Feasibility Analysis
Safe Lifting LimitsHow safe are the current lifting methods? If they are unsafe, what weight limit should we set?
- The employee will be predominately lifting or lowering, therefore the NIOSH lifting equation will give us accurate results.
- The employees are all in good (normal) physical health for their age and gender.
- All tasks are single tasks, not multitasks, therefore a single task job analysis worksheet can be used.
- We currently do not have enough data or measurements to complete the worksheet.
- The following needs to be acquired to complete the
- Load constant (LC)
- Horizontal multiplier (HM)
- Vertical multiplier (VM)
- Distance multiplier (DM)
- Asymmetric multiplier (AM)
- Coupling multiplier (CM)
- Frequency multiplier (FM)
The Morphological Chart can be accessed here - Morphological Chart
|Cheap / Low Cost||Cost to build and maintain the solution|
|Safe / Follows Regulations||Is the solution likely to harm the employees or does it follow safety regulations?|
|Easy Implementation||Difficulty for the team to design and build the solution|
|Easy Accessibility||Difficulty for SportsNet to access the equipment utilizing the solution|
|Two Semester Time Frame||Is it feasible for the solution to be implemented in 2 semesters?|
|Adaptable (Future Growth)||Difficultly to change or move the solution to allow for more equipment|
|Easy to Maintain / Sustainable||The amount of maintenance or effort needed for the solution to continue working|
The Pugh Chart document can be accessed here - Pugh Charts
The Facility Layout can be accessed here - Facility Layout
The Spaghetti Diagram can be accessed here - Spaghetti Diagram
The Risk Management Spreadsheet can be accessed here - Risk Management
Plans for Next Phase
The Schedule and Completion Plan can be accessed here - P17708 Schedule
The Individual Contribution chart can be accessed here - Individual Contribution