Team Introduction Competition Background Current Situation - - PowerPoint PPT Presentation

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 Team Introduction  Competition Background  Current Situation  Project Goals  Stakeholders  Use Scenario  Customer Needs  Engineering Requirements  Constraints  Project Plan  Risk Analysis  Questions

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 Christopher Jones - Aeronautical Engineer  Matthew Zielinski - Aeronautical Engineer  Ronald Manning - Aeronautical Engineer  Dominic Myren: Aeronautical Engineer – Project Manager  Marc Protacio : Aeronautical Engineer – Team Leader

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 An event that challenges engineering students in the United States

and internationally through the design, build, and test of an aircraft

 Three Classes:

• Regular – The standard class we are interested in
• Advanced – Extra challenge for experienced teams
• Micro – A new class focusing on small scale craft

 The goal is to build an aircraft to carry a greater weight than others

while following a set of restrictions and generating accurate engineering documentation

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 RIT Aero Design Club has been absent from the competition since

2008

• Prior to 2008, RIT had been inconsistent in participating in the

competition annually

 Lacking…

• Experienced veterans to lead/guide the club
• Aeronautical engineering experience/knowledge
• Full commitment as students are on co-op for parts of the year
• Funding

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 Deliverables

• A functional finished aircraft designed and built to SAE Aero standards
• Comprehensive documentation of design, build, and testing methods and processes

 Jumpstart the Aero Club

• Build competence through sharing experience from the present Senior Design project
• Desired State: Aero Design club is able to compete in the SAE Aero Competition

annually and be competitive

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 SAE Aero Organization – Primary Customer  RIT Aero Design Club  MSD I Team Members  Dr. Kolodziej – Faculty Guide  RIT Aerospace Engineering Faculty  Potential Sponsors  Rochester Institute of Technology

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 Fly aircraft according to SAE Aero Regular Class Competition mission

requirements

Competition Use Scenaro MSD Team Pilot Load aircraft with payload Thrust engine Deploy flaps and rotate elevator (-) Climb to cruise altitude Trim aircraft: Use rudder,elevator and ailerons Eliminate engine thrust, deploy flaps, rotate elevator (-) Land aircraft Stop aircraft

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Importance Key: 3=must have, 2=nice to have, 1=preference only

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Importance Key: 9 = Critical 3 = Moderate 1 = Insignificant *Note: All engineering requirements derived from SAE Aero rules are deemed critical as failing to meet the target values will result in penalization or disqualification.

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Risk Category Cause Effect L S I Method for Mitigation or Remediation Owner (Team leader assumes partial

• wnership of all risks)

1 Inability to meet the design tolerances and specified size limits Technical Manufacturing Disqualification 2 3 6

• 1. Ask Aero Design Club about their current manufacturing capabilities.
• 2. Intentionally design aircraft dimensions less than the upper size limit given by the rules.
• 3. Make tolerances relatively large.

Ron

2 Not enough initial funding Resource MSD Budget Inability to fully build aircraft 1 3 3

• 1. Research supplies that may not be of the highest quality but will still perform the required job.
• 2. Try to ask for more funding and justify the additional money with valid reasons.
• 3. If strength of materials is of concern, research less costly materials with the same properties needed.
• 4. Ensure that manufacturing is done carefully so as to avoid needing to purchase more materials when mistakes are made.

Chris

3 Structures may fail Technical Safety Aerodynamics loads in flight Damaged Aircraft 1 3 3

• 1. Perform extensive mechanics of solids analysis, both theoretical and with finite element analysis software in

conjunction with computational fluid dynamics software.

• 2. Add an adequate factor of safety when choosing materials based on strength.
• 3. Fabricate spare aircraft parts/assemblies.

Dom

4 Aircraft may not fly Technical Poor design Inability to perform competition

• bjective

1 3 3

• 1. Perform extensive aerodynamics and flight dynamics analysis, both theoretical and with flight simulation and

computational fluid dynamics software.

• 2. Perform wind tunneling testing to compare/contrast pressure distributions obtained through CFD.

Dom/Ron

5 Aircraft may not take-off within required distance Technical Inability to acquire required lift in time Inability to perform competition

• bjective

1 3 3

• 1. Ensure Wing is sized to provide initial adequate lift using theoretical calculations and include a sizing factor of safety.

Ensure elevator is adequately sized to provide adequate pitching moment using theoretical calculations and a sizing factor

• f safety.
• 2. Ensure elevator deflection angle range is adequate using theoretical calculations and an angle range factor of safety.
• 3. Ensure flaps are adequately sized to provide additional lift assist using theoretical calculations and a sizing factor of

safety.

• 4. Ensure flap deflection angle range is adequate using theoretical calculations and an angle range factor of safety.
• 5. Ensure engine provides adequate thrust to get aircraft to the required initial velocity by testing the thrust capability of

the engine on a test stand.

Matt

6 Aircraft may not land within the required distance Technical Inability to decelerate aircraft while trimmed and having proper attitude. Inability to perform competition

• bjective

1 3 3

• 1. Have discussion with pilot to discuss required landing velocity and ensure that he/or she plans to obtain that

requirement when approaching the land.

• 2. Make sure elevator and flaps are adequately sized and have adequate angular range, as discussed previously when

taking-off, to trim aircraft during landing.

• 3. Make sure rudder is adequately sized and has sufficient angular deflection capability to remove any sideslip angle,

using theoretical calculations and applying a factor of safety.

Matt

7 Aircraft may not be able to carry a “competitive” payload Technical Poor design Fail to impress stakeholders 1 2 2

• 1. Research previous winning aircrafts and the payloads that they were able to carry.
• 2. Design the aircraft to carry more than that payload, and include a factor of safety in the lifting capability.
• 3. Test aircraft to ensure the designed payload weight is carried prior to competition.

Dom/Ron

8 Aircraft may not be designed and built within the required time frame Technical Manufacturing Inability to compete/ showcase aircraft 3 3 9

• 1. Develop Gantt scheduling chart and follow it strictly.
• 2. Include a scheduling factor of safety (allocate extra time for tasks) to account for problems experienced and mistakes

made in the process.

Chris

9 Bad flight conditions Rsource Poor weather Poor aircraft performance 1 1 1

• 1. Test aircraft in a variety of weather scenarios to give pilot experience flying with poor flight conditions.

Chris

10 Poor controllability of aircraft during flight Technical Safety Design is too stable Poor maneuverability and possibily safety hazard 1 3 3

• 1. Properly size control surfaces using theoretical calculations and a sizing factor of safety.
• 2. Ensure control surface deflection angle range is adequate using theoretical calculations and an angle range factor of

safety.

• 3. Allow pilot adequate time to test the aircraft so that he or she is comfortable flying it.
• 4. Make sure control surfaces do not have excessive slop.

Chris

11 Electronics may fail Resource Safety Bad connections, poor equipment, unfamiliarity with electronics integration, battery failure and/or fire Need for electronics repair or replacement, safety hazard 2 3 6

• 1. Purchase spare electronic components.
• 2. Inspect/test electronics prior to flight.
• 3. Consult with Aero Design Club about electronics integration
• 4. Follow electrical component safety procedures

Refer to previous SAE Aero design reports

Matt

12 Engine may not be able to provide adequate thrust Technical Resource Poor engine choice

• r under-performing

engine Inability to obtain required velocity 1 3 3

• 1. Calculate required thrust using theoretical calculations and ensure that a thrust factor of safety is implemented.
• 2. Test the thrust capability of the engine on a test stand.

Matt

13 Lack of aeronautical engineering knowledge amongst team members Technical Resource RIT curriculum Difficulties in design process, inability to meet deadlines 3 3 9

• 1. Consult with textbooks regarding aeronautical engineering theory as well as aircraft design methods.
• 2. Refer to previous SAE Aero design reports to learn about design methods used.
• 3. Assemble team members that are in the “Aero” option.

Dom

14 Lack of aircraft

manufacturing knowledge amongst team members

Technical Resource RIT curriculum Difficulties in design process, inability to meet deadlines

3 3

9

• 1. Consult with aero club for manufacturing help.
• 2. Consult with previous SAE Aero technical report for manufacturing guidelines and hints.

Ron

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 Comments  Concerns  Complaints