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Daimler Wind Tunnel Project
AssociatesCapstone Team- Andre Nylund- Chris Grewell- Craig Lechtenberg- Fadel Al Jutail- Matt Melius- Mufeed Yacoub
Team Advisor- Dr. Raul Bayoán Cal
Our CustomersExternal Customers- Daimler Trucks North America
- Matt Markstaller- Carlos Cosme- Bruno Banceu
Internal Customers- Portland State University- Faryar Etesami- Capstone Team
Matt Markstaller
Daimler’s Wind TunnelTunnel Details• The 12,000 sq. ft. facility
can accommodate a full sized Freightliner cab that is mated to a mock-up box trailer.
• Wind speeds up to 65 mph
by 10, 250 hp industrial blower fans.
• 30ft long test section
26 ft
21 ft
Tunnel cross-sectional area of 550 ft2
Daimler’s Wind TunnelTesting Ability• Pressure sensitive floor for
calculating trucks drag coefficient.
• Rotating floor panel to test various angles of attack
• Smoke wand for flow visualization
Current Smoke Testing Methods
• Smoke wand enters test section through hole in side of tunnel• Wand is manually extended to desired position
Issues with Current Smoke Testing Equipment
• Smoke wand placement is limited by the length of the wand
Smoke wand range
Issues with Current Smoke Testing Equipment
• Smoke wand placement is limited by the length of the wand
• Wand is manually held from outside the tunnel then angled into position, requiring extra personal to perform testing
Issues with Current Smoke Testing Equipment
• Smoke wand placement is limited by the length of the wand
• Wand is manually held from outside the tunnel then angled into position, requiring extra personal to perform testing
• Manual control makes repeatable testing of an area difficult
Issues with Current Smoke Testing Equipment
• Smoke wand placement is limited by the length of the wand
• Wand is manually held from outside the tunnel then angled into position, requiring extra personal to perform testing
• Manual control makes repeatable testing of an area difficult
• Flexibility of current wand reduces accuracy of smoke placement during testing
Mission Statement• Improve smoke testing methods
- Increase the testable area within the wind tunnel
- Increase stability of the system
- Deliver smoke to location of interest accurately
- Electronically controlled system to eliminate human error
- Provide these requirements while maintaining negligible aerodynamic impact to test region
- Delivery of final product by June,16th
PDS Criteria • Two axis motion
– 20’ Horizontal travel– 17’ Vertical travel
PROJECTED AREA
14’
8.5’
TARGET AREA
17’
14.5’
PDS Criteria • Two axis motion
– 20’ Horizontal travel– 17’ Vertical travel
• Zero residual impact when not in use– Removes itself form wind tunnel completely when not in use
• Aerodynamic Profile– 2-4’ separation between support structure and smoke delivery location
(based off structure size)
5.5’
Door Transition
PDS Criteria • Two axis motion
– 20’ Horizontal travel– 17’ Vertical travel
• Zero residual impact when not in use– Removes itself form wind tunnel completely when not in use
• Aerodynamic Profile– 2-4’ separation between support structure and smoke delivery location
(based off structure size)
• Remote controlled electronically – No physical interaction for system to operate
• Accuracy– ± 0.5” Resolution
Mile Stones• Concept selection – February 24th
• Detailed design completion – April 28th
• Fabrication completion – May 31st
• Product delivery – June 16th
Risk• Missing delivery date
• Contractors failure to implement team design
• Non-function product due to design errors
Risk Assessment
Countermeasure - Well thought out PDS and
project plan
- Sufficient documentation and walkthrough installation with design team
- Budget time for design testing and changes
Questions