Team Vision for System-Level Design Phase
- What we planned to do?
- Disassemble ACM cylinder when it arrives to gain better understanding of the system we are trying to improve/modify.
- Research current automatic hydraulic cylinders to understand where there is room for improvements.
- Brainstorm possible solutions to current problems.
- Use techniques learned in class such as functional decomposition, morphological tables, and Pugh charts to determine the best solutions to current problems.
- Determine feasibility of chosen design for further development.
- Design system architecture for flow of energy, information, and material for selected concept.
- Define a high-level view of the elements required to build and operate the entire system.
- Update customer requirements, engineering requirements, and risks as necessary.
- Prepare materials for successful system review.
- Plan schedule for next phase.
- What we accomplished?
- Created schedule of team member travel so we all knew when each person would be away and unavailable to work on the project.
- Reviewed all relevant standards (ASTM).
- Researched current automatic hydraulic cylinders to understand where there is room for improvements.
- Reached out to parks to get a better understanding of some of the challenges with current systems.
- Reached out to PLC/ride electronics company to better understand signals to and from control panel and train.
- Discussed possibility of conducting time studies on restraint closing and ride dispatch times.
- Determined multiple options for each component in our system and then determined overall design options.
- Created two functional decompositions, a morphological table, and a Pugh chart. Used the documents to determine best solutions to current problem.
- Began budget analysis and other feasibility studies.
- Designed system architecture for flow of energy, information, and material for selected concept.
- Updated customer requirements, engineering requirements, and risks as necessary.
- Began planning for future prototype testing.
- Prepared materials for successful system review.
- Planned project schedule for next phase.
|Interview Date||Interview Questions||Interview Notes|
|2/9/18||Feb. 9th Park Questions||Feb. 9th Park Answers|
|2/22/18||Electrical Questions for Irvine Ondrey Engineering||Brian Ondrey Response|
Prior to Ride Dispatch
End of Ride Cycle
Research & Benchmarking
|Research Page 1||Research Page 2||Research Page 3||Research Page 4||Research Page 5||Research Page 6||Research Page 7|
The full pdf can be downloaded for viewing here.
Passenger Detection With Sensors
|Research Page 1||Research Page 2||Research Page 3|
Infrared Sensor Options
Ultrasonic Sensor Options
Proximity Sensor Options
Accelerometer Sensor Options
- Motor to drive screw
- Pump to be used in pump system
Concept Development: Morphological Chart
Concept Selection: Pugh Charts
- Selection Criteria
- ASTM Standards - Adheres to all ASTM standards necessary for ride design
- Class 5 Restraint - Is a Class 5 Restraint: a latching restraint device for each individual patron.
- Final Cost - Ending cost is smaller or larger than datum
- Maintenance Cost - Maintenance costs are expected to be more or less than datum
- Reliability - Defined by number of moving parts and likelihood of part failure
- Interface with Current - Likelihood system can fit with footprint of current design
- Movement Speed - Likely to actuate faster or slower than datum
- Movement Precision - Defined as the likelihood system will stop at intended point
- Ability to Withstand Forces - Likelihood system can hold rider in ride against forces created by the ride
- Complexity - Defined by the number of moving parts
- Energy Loss (Heat) - Amount of wasted energy needed (heading a spring)
- Power draw - Amount of total power complete system uses
- Manufacturability - The likelihood the system is able to be manufactured easily
Concept Selection: Designs
We have omitted our potential concept sketches here as our final concept is sensitive information. For those with appropriate permissions, our sketches and more information can be found here.
Feasibility: Prototyping, Analysis, SimulationSome information has also been omitted from this section. Those with appropriate permissions can view the fully disclosed page here.
Preliminary Testing Feasibility Analysis
- RIT Testing
- Preliminary Functional Test
- Preliminary Static Load Test
- Need to find/create testing facility
- ACM Testing
- Full Static Load Test
- Full Dynamic Load Test
- ACM can cover shipping costs
- ~6 day shipping time to send/receive components to/from ACM
- ASTM Standards
- F2291 Design of Amusement Rides and Devices
- F770 Ownership, Operation, Maintenance, and Inspection of Amusement Rides and Devices
- F1193 Quality, Manufacture, and Construction of Amusement Rides and Devices
- F747 Standard Terminology Relating to Amusement Rides and Devices
- Ride throughput study
- Restraint movement time analysis
- Feasibility to improve valve sensor
- Testing electrical system capabilities
- Print section view of manifold
- Figuring out speed of restraint people are most comfortable with
We have hidden our design risks as they disclose information we wish to protect at this time. Those with the proper permissions may find the information here.
Design Review Materials
Because our project review powerpoints contain sensitive info, we have opted to not include them on this page. For those with proper credentials, they can be found here.
Plans for next phase
- Team Plans:
- Take apart hydraulic cylinder from ACM to better understand hydraulic systems as well as to get an idea of how our design improvements can integrate with current hydraulic cylinder systems.
- Finalize system level design (pick one of our two options).
- Begin finding specifications on system components we plan to use for this new system.
- Create drawing of proposed final system.
- Once drawing iterations are complete, create CAD model of proposed system.
- Determine if any other drawings, schematics, flow charts, etc are needed to further convey our design and its intent.
- Create first draft of Bill of Materials.
- Create a test plan for prototype.
- Update risk assessment document.
- Update engineering requirements is necessary.
- Create materials for design review.
- Review completed work and determine remaining work needed to finish detail design work and MSD I.
- Individual Plans:
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