comprehensive design i design i --mech 4240 mech 4240
TRANSCRIPT
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Comprehensive Comprehensive Design I Design I -- MECH 4240MECH 4240
Final Fall 2008Final Fall 2008Final Fall 2008Final Fall 2008Eric Kamber
Harry GoodenJosh Westmoreland
Billy Rigdon
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� Overview� Projects◦ Body and Panel Mounting◦ Exhaust◦ Hood Array Stage 1◦ Hood Array Stage 2◦ Belly Pans◦ Door & Trunk Hinges
OutlineOutline
◦ Door & Trunk Hinges◦ Firewall
� Conclusion
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� Overview� Projects◦ Body and Panel Mounting◦ Exhaust◦ Hood Array Stage 1◦ Hood Array Stage 2◦ Belly Pans◦ Door & Trunk Hinges
OutlineOutline
◦ Door & Trunk Hinges◦ Firewall
� Conclusion
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� Effectively Solve Design Problems With Major Systems in the Car and Get Main Systems of Car in Basic Working Order
� Finish Design of Many Subsystems
� Test Car Under Basic Driving Conditions and Get a Baseline of Data
� Effectively Communicate with Present
Overview Overview Goals for SemesterGoals for Semester
� Effectively Communicate with Present Team Members and Provide the Future Good Records
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� Engine Remount
� Steering Assembly
�All completed and tested successfully
OverviewOverviewMidterm OverviewMidterm Overview
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� Overview� Projects◦ Body and Panel Mounting◦ Exhaust◦ Hood Array Stage 1◦ Hood Array Stage 2◦ Belly Pans◦ Door & Trunk Hinges
OutlineOutline
◦ Door & Trunk Hinges◦ Firewall
� Conclusion
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� Non-Permanent Mounting
� Isolation
� Minimal Parts
� Ability to Adjust Position
� Back Panel Will Have Special Needs
Body and Panel MountingBody and Panel MountingDesign ConsiderationsDesign Considerations
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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Body and Panel MountingBody and Panel MountingDesign Design –– ConfigurationsConfigurations
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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Body and Panel MountingBody and Panel MountingDesign Design –– LocationsLocations
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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Body and Panel MountingBody and Panel MountingDesign Design –– Location ChangesLocation Changes
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� Belly Pans◦ Similar Mounting To Body Shell
◦ Leading and Trailing Edge Will Need Special Consideration Due to distance from frame
Body and Panel MountingBody and Panel MountingOther PanelsOther Panels
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� Overview� Projects◦ Body and Panel Mounting◦ Exhaust◦ Hood Array Stage 1◦ Hood Array Stage 2◦ Belly Pans◦ Door & Trunk Hinges
OutlineOutline
◦ Door & Trunk Hinges◦ Firewall
� Conclusion
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� Guide exhaust so that it does not enter Passenger cabin.
� Avoid overheating any (i.e. cables, tubing, etc.)◦ Will use a fiberglass insulation wrap
� Use tubing and muffler that was provided by Wolf Muffler
ExhaustExhaustConsiderationsConsiderations
by Wolf Muffler
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� Straight down, beside engine◦ Shortest, easiest route
◦ Possibility of exhaust entering the car while idling
� Wheel well◦ Short, but complicated route
�Rear of Vehicle
ExhaustExhaustConceptsConcepts
�Rear of Vehicle◦ Longest route, directs fumes the best
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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ExhaustExhaustFabricationFabrication
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� Overview� Projects◦ Body and Panel Mounting◦ Exhaust◦ Hood Array Stage 1◦ Hood Array Stage 2◦ Belly Pans◦ Door & Trunk Hinges
OutlineOutline
◦ Door & Trunk Hinges◦ Firewall
� Conclusion
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� Current Hood Deployment System
� Key Components: Linear Actuator and Track Assembly
Array DeploymentArray DeploymentStage 1Stage 1–– Current SystemCurrent System
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Midterm
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Key Errors:•Positioning of the linear actuator•Improper connection between the tracks and hood support tray
Array DeploymentArray DeploymentIssuesIssues
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Midterm
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� Corrections?◦ New Bushings?
◦ More Rigid Structure?
� New Design For Stage 1◦ Four-Bar Mechanism
◦ Drawer-slider Type Assembly
Array DeploymentArray DeploymentStage 1 RedesignStage 1 Redesign
◦ Drawer-slider Type Assembly
◦ Linear Actuator
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Midterm
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Array DeploymentArray DeploymentFourFour--BarBar
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Midterm
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� 3D Model To be Finished
� Design Confirmed By Presentation to Team
� Drawing package Finished
� Parts Manufactured
� Assembly and Testing
Array DeploymentArray Deployment11stst Stage OutlookStage Outlook
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry GoodenMECH 4240 • Fall 2008 • Midterm
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� 4-Bar Mechanism Design Reconsidered
- Complicated
� Brainstorm… Simple Rotation Required
� Trunk Hinges Utilized for Hood
Array DeploymentArray Deployment11stst Stage Stage –– New DesignNew Design
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008
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� Consideration of Design
- Constraints of Area
- Proper Alignment with Body
- Proper Selection of Slides
- Attachment Points
- Operation for Success
Array DeploymentArray Deployment11stst Stage Stage –– New DesignNew Design Josh Westmoreland • Eric
Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Midterm
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� Assembly Design and Connections
- Hinge to Drawer Slides
- Drawer Slides to Array Tray
- Array Tray to Hood
Array DeploymentArray Deployment11stst Stage Stage –– New DesignNew Design Josh Westmoreland • Eric
Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Midterm
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� Drawer Slides Selected and Purchased
Array DeploymentArray Deployment11stst Stage Stage –– New DesignNew Design Josh Westmoreland • Eric
Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Midterm
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� Installation and Performance
- Primary Installation is Complete
- Initial Testing Commenced
Array DeploymentArray Deployment11stst Stage Stage –– New DesignNew Design Josh Westmoreland • Eric
Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Midterm
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Array DeploymentArray Deployment11stst Stage Stage –– New DesignNew Design
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� Future Considerations
- Body Alignment
- Spring Mechanisms
- Stabilization of System
- Refinement of System
Array DeploymentArray Deployment11stst Stage Stage –– New DesignNew Design
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� Overview� Projects◦ Body and Panel Mounting◦ Exhaust◦ Hood Array Stage 1◦ Hood Array Stage 2◦ Belly Pans◦ Door & Trunk Hinges
OutlineOutline
◦ Door & Trunk Hinges◦ Firewall
� Conclusion
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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Array Deployment Array Deployment 22ndnd Stage MechanismStage Mechanism
� Two motors mounted to the bottom hood piece.� Two arms which twist to open the top hood piece and reveal the solar panels.
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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Array Deployment Array Deployment 22ndnd Stage MechanismStage Mechanism
� Two motors mounted to the bottom hood piece.� Two arms which twist to open the top hood piece and reveal the solar panels.
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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Array Deployment Array Deployment DimensionsDimensions
**Calculations Can Be Found In the Report**
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� IM-15 GEARMOTORS
� Torque rating: Up to 1,250 oz. in.
� Weight: 14 to 21 ounces depending on ratio and motor
� Gears: Precision manufactured and heat treated for reliable performance and long life
� Shaft: Precision-ground No. 416 nitrided stainless steel
Array Deployment Array Deployment
Motor InformationMotor Information
� Backlash: Varies with ratio but average backlash is 3°
� Gear inertia: 1.2 x 10-5 oz. in. sec.2 @ input max
� Cover: Steel housing, zinc plate
� Mounting flange: Die-cast zinc
� Bearings: Motor output shaft is supported by life-lubricated sleeve bearings
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� The maximum torque needed is 79.3Nm. @ initial opening point.
� The current motors (409A6051-2) have a maximum torque of 68.59 Nm, which is not ample power to open the hood.
� The new motors (409AXXXX) have roughly three times more power, which is more than enough power.
Array DeploymentArray DeploymentGlobe Motors 409A SeriesGlobe Motors 409A Series
Torque @ 409A6051-2 409AXXXX
2.4 rpm 1.91 Nm 5.8 Nm
1.4 rpm 28.57 Nm 87.27 Nm
0.15 rpm 68.59 Nm 207.04 Nm
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� New Motors Have Been Delivered
� They have been mounted and tested.
� The initial test had some malfunctions.
Array DeploymentArray Deployment22ndnd Stage ProgressStage Progress
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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Problems Found While Testing� The shaft was not strong enough for the amount of torque applied
� The pins holding the arm to the shaft either broke or deformed.
� The motors were not strong enough to lift the hood on their own.
Array DeploymentArray Deployment22ndnd Stage Progress (Testing)Stage Progress (Testing)
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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Solutions for Testing Problems
� A stronger shaft was purchased
� The shaft was welded to the collar
� A 1/8” hole was drilled through the arm and shaft, a steel rod was inserted for more
Array DeploymentArray Deployment22ndnd Stage Progress (Solution)Stage Progress (Solution)
shaft, a steel rod was inserted for more rigidity
� These solutions should solve the torque loss issue
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� Overview� Projects◦ Body and Panel Mounting◦ Exhaust◦ Hood Array Stage 1◦ Hood Array Stage 2◦ Belly Pans◦ Door & Trunk Hinges
OutlineOutline
◦ Door & Trunk Hinges◦ Firewall
� Conclusion
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� The progress on the belly pans is at a stand still and will continue next semester.
� This is due to the body not being mounted and the belly pans must be aligned to the body before being mounted.
� The next step are displayed on the following slides.At this time the belly pans have had the
Belly PansBelly PansPlan For Next SemesterPlan For Next Semester
� At this time the belly pans have had the initial cuts made and are ready to move on to the final cut and to be mounted.
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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Mounting Brackets� Same bracket system as the rest of the
body
� Slider system for easy mounting and placement
Flush Mounting System� Using a pin mounted to the corners of the
car on the belly pan pieces to hold it at the correct position.
Belly PansBelly PansMountingMounting
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� This is the arrangement of the three pieces from front to back
Belly PansBelly PansLayout of PiecesLayout of Pieces
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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Belly PansBelly PansMounting PositionsMounting Positions
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� Overview� Projects◦ Body and Panel Mounting◦ Exhaust◦ Hood Array Stage 1◦ Hood Array Stage 2◦ Belly Pans◦ Door & Trunk Hinges
OutlineOutline
◦ Door & Trunk Hinges◦ Firewall
� Conclusion
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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Door HingeDoor HingeJosh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden
MECH 4240 • Fall 2008 • Final
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Door Hinge locationDoor Hinge locationJosh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden
MECH 4240 • Fall 2008 • Final
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Trunk HingeTrunk HingeJosh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden
MECH 4240 • Fall 2008 • Final
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Trunk Hinge LocationTrunk Hinge LocationJosh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden
MECH 4240 • Fall 2008 • Final
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� Overview� Projects◦ Body and Panel Mounting◦ Exhaust◦ Hood Array Stage 1◦ Hood Array Stage 2◦ Belly Pans◦ Door & Trunk Hinges
OutlineOutline
◦ Door & Trunk Hinges◦ Firewall
� Conclusion
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� Will prevent heat from motors from entering cabin
� Provide a sound dampening barrier between the occupants and the diesel engine
� Consist of eight sections
- 4 inner, 4 outer
FirewallFirewallDesign ConceptsDesign Concepts
- 4 inner, 4 outer
� Carbon Fiber Insulation
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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Interior Firewall Cut OutInterior Firewall Cut OutJosh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden
MECH 4240 • Fall 2008 • Final
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� Overview� Projects◦ Body and Panel Mounting◦ Exhaust◦ Hood Array Stage 1◦ Hood Array Stage 2◦ Belly Pans◦ Door & Trunk Hinges
OutlineOutline
◦ Door & Trunk Hinges◦ Firewall
� Conclusion
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� Solving Engineering Design Issues In Almost Every Major System
� Next Steps:◦ Finish Troubleshooting Major issues
◦ Finish Redesign of Components
◦ Repair and Test Drive Systems
◦ Create, Install and Test New System Designs
ConclusionConclusion
◦ Create, Install and Test New System Designs
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final
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� Projects◦ Body Mounting - Josh
◦ Belly Pan Mounting - Eric
◦ Engine Mounting - Josh
◦ Front Array Deployment
� Stage 1 – Harry
� Stage 2 - Eric
Questions?Questions?Responsibilities Responsibilities
◦ Steering Assembly - Billy
◦ Door & Trunk Hinges - Billy
◦ Firewall- Billy
Josh Westmoreland • Eric Kamber • Billy Rigdon • Harry Gooden MECH 4240 • Fall 2008 • Final