1 First Presentations We will have the second half of the individual presentations today. Taken from

2 First Presentations The set of Individuals presentations today. Taken from

3 First Group Presentations We’ll start the group presentations Thursday Taken from

4 First Group Presentations We’ll start the group presentations Thursday with groups 6, 5 & 4 Taken from

5 First Group Presentations We’ll start the group presentations Thursday with groups 6, 5 & 4 Taken from

6 First Group Presentations We’ll start the group presentations Thursday with groups 6, 5 & 4 I’d like to to follow the SAE grading document precisely Taken from

7 First Group Presentations We’ll start the group presentations Thursday with groups 6, 5 & 4 I’d like to to follow the SAE grading document precisely Taken from What I mean is that you should have slides with exactly these titles, in their order and only talk about the things they list.

8 SAE Aero Design East Technical Presentation by: The Flying None The Catholic University of America Washington, DC SAE Aero Design East April 11, 2014 Marietta, Georgia

9 Technical Approach Our team … Taken from

10 Vehicle Sizing, Lift & Drag 175” Weight budget CG just behind CL Main gear position Drag budget and drag as a function of speed Taken from

11 Configuration High, mid or low wing, why? Tail configuration, Payload Landing gear style and Taken from

12 Stability & Control Drag center and tail design Taken from

13 Weight Buildup Weight Budget Weight distribution Taken from

14 Propulsion Taken from

15 Performance Analysis Taken from Take off analysis

16 Performance Analysis Taken from Crouse analysis

17 Stress Analysis Taken from Hard landing

18 Material Selection Taken from Because it’s cheep Because it’s light

19 Trade Studies Taken from

20 Empirical Results Taken from

21 Project Plan / Schedule Taken from

22 Flight Testing Taken from Show DC flight tests

23 Conclusions Taken from The Design meet the requirements

24 First Presentations Aim for 7 minutes of presentation and focus on design and how the design was translated into a prototype Taken from

25 First Presentations Aim for 7 minutes of presentation and focus on design and how the design was translated into a prototype You should have no less that 14 PowerPoint slides Taken from

26 First Presentations Aim for 7 minutes of presentation and focus on design and how the design was translated into a prototype You should have no less that 14 PowerPoint slides Taken from

27 First Presentations Aim for 7 minutes of presentation and focus on design and how the design was translated into a prototype You should have no less that 14 PowerPoint slides There should be figures on all slides Taken from

28 First Presentations Aim for 7 minutes of presentation and focus on design and how the design was translated into a prototype You should have no less that 14 PowerPoint slides There should be figures on all slides… And use your plane Taken from

29 Skip the Embellished Slide Template Taken from

30 Skip the Embellished Slide Template Taken from

31 Skip the Embellished Slide Template Taken from

32 Skip the Embellished Slide Template Taken from

33 Skip the Embellished Slide Template Taken from

34 Skip the Embellished Slide Template Taken from

35 Skip the Embellished Slide Template Taken from

36 Skip the Embellished Slide Template Taken from They add nothing

37 Focus on Facts Taken from

38 The Tyranny of Facts Focus on Facts But Facts aren’t enough Taken from

39 The Tyranny of Facts Focus on Facts But Facts aren’t enough Include context… why the facts matter. Taken from

40 The Tyranny of Facts Focus on Facts But Facts aren’t enough Include context… why the facts matter. Examples of facts without context: The lift coefficient is 1.2 which is high The density of Balsa (or Paulownia) is 160 kg/m 3 (or 350 kg/m 3 ) Taken from

41 Pace and Speed Plan and rehearse your words Taken from

42 Pace and Speed Plan and rehearse your words Talk fast and cover as much ground as you possibly can in 7 minutes Taken from

43 Pace and Speed Plan and rehearse your words Talk fast and cover as much ground as you possibly can in 7 minutes You audience will get it. Taken from

44 Pace and Speed Plan and rehearse your words Make an outline on layout how many minutes for each section 1)Who am I and what the &*%$ am I talking about ½ minute 2)Premise statement ½ minute 3)Design objectives1 minute 4)Details of fuselage design 2 minutes 5)Discussion of how system effects and is 2 minutes incorporated in to full plane 6) Conclusion showing proof design meets objective 1 minute Taken from

45 Pace and Speed Plan and rehearse your words Make an outline on layout how many minutes for each section 1)Who am I and what the &*%$ am I talking about ½ minute 2)Premise statement ½ minute 3)Design objectives1 minute 4)Details of fuselage design 2 minutes 5)Discussion of how system effects and is 2 minutes incorporated in to full plane 6) Conclusion showing proof design meets objective 1 minute Taken from Have a timer during your talk

46 Pace and Speed Plan and rehearse your words Make an outline on layout how many minutes for each section 1)Who am I and what the &*%$ am I talking about ½ minute 2)Premise statement ½ minute 3)Design objectives1 minute 4)Details of fuselage design 2 minutes 5)Discussion of how system effects and is 2 minutes incorporated in to full plane 6) Conclusion showing proof design meets objective 1 minute Taken from Have a timer during your talk And use it

47 What to Include Talk about How you made design decisions and show the fabricated result Taken from

48 What to Include Talk about How you made design decisions and show the fabricated result Taken from

49 What to Include Talk about How you made design decisions and show the fabricated result Taken from

50 What to Include Talk about How you made design decisions and show the fabricated result Taken from

51 What to Include Talk about How you made design decisions and show the fabricated result Taken from

52 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis Input: requirements & constraints

53 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis Input: requirements & constraints Open loop system

54 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis Input: requirements & constraints This is not the design process Open loop system

55 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis Input: requirements & constraints This is not the design process Open loop system

56 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis Input: requirements & constraints Question: does design meet goals?

57 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis Input: requirements & constraints Question: does meet goals? if no

58 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis Input: requirements & constraints if no Question: does meet goals?

59 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis Input: requirements & constraints if no Question: does meet goals?

60 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis Input: requirements & constraints if no Question: does meet goals? +

61 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis + Input: requirements & constraints if no Question: does meet goals? Cycle until requirements and constraints are met and the answer is yes

62 Close the Loop You must use your analysis to refine your design through several cycles and then show that you met objectives. design analysis + Input: requirements & constraints output: design output: proof design meets goals Question: does meet goals? If yes Now you have a complete design

63 What to Include Talk about How you made design decisions and show the fabricated result Taken from

64 What to Include Talk about How you made design decisions and show the fabricated result List of design goals for the full plane and each subsystem Remember that the design requirements drive the design Taken from

65 What to Include Talk about How you made design decisions and show the fabricated result List of design goals for the full plane and each subsystem SAE wants you to should a design evolution Taken from

66 What to Include Talk about How you made design decisions and show the fabricated result List of design goals for the full plane and each subsystem SAE wants you to should a design evolution Lots of SolidWorks drawings of your plane or subsystem Taken from

67 What to Include Talk about How you made design decisions and show the fabricated result List of design goals for the full plane and each subsystem SAE wants you to should a design evolution Lots of SolidWorks drawings of your plane or subsystem Taken from Detail drawings Overall drawings

68 What Not to Include No need to discuss safety issues How you used your time Where you found or purchased items “because Don thought it would work” “because Don had one ” Common knowledge General theory Taken from

69 What Not to Include No need to discuss safety issues How you used your time Where you found or purchased items “because Don thought it would work” “because Don had one ” Common knowledge General theory No gesticulation to describe a mechanical system Taken from

70 Be Ready Don’t look helpless Taken from

71 Be Ready Don’t look helpless Be ready to go Taken from

72 Writing & Presentation Issues I have posted my document on writing “Writing issues for engineers”. I consider this a work in progress. There is a “First Draft Check List” in the “Writing issues for engineers” document. Please use after you finish your first draft is assembled for all documents to be turned in for this class. There is a separate section of this documents for presentations

Writing & Presentation Issues Will the reader or recipient know what it is? Identify your document with a descriptive title and an introductory sentence. Your document must have your name, the date, the assignment, and a title. Get in the habit of using a premade title pages for MS Word and PowerPoint Use mine as a template if you like 73 Issue 1: Information Rich Title Pages

Writing & Presentation Issues Make sure that your reader can quickly find the section he or she is looking for. If you are covering more then one topic, each topic needs to have a titled section. 74 Issue 2: Separate Different Topics

Writing & Presentation Issues Use logical sections and subsections Title each so that so that the content is obvious 75 Issues 1&2 Corollary: Sections Titles

76 Writing & Presentation Issues Issue 2: Will the reader or recipient know what it is? Identify your document with a descriptive title and an introductory sentence.

77 Color and other embellishments Color, you can use color but your document but figures should work in B&W if possible. Hyperlinks, you should use them but the web address must appear in a footnote or the reference section. Animations, movies and sound files can be helpful but can also be trouble. Be aware that some of your readers will not be able to access them.

78 Writing & Presentation Issues I have posted my document on writing “Writing issues for engineers”. There is a “First Draft Check List” in the “Writing issues for engineers” document. Please use after you finish your first draft is assembled for all documents to be turned in for this class. There is a separate section of this documents for presentations

Information Rich Title Page Will the reader or recipient know what it is? Identify your document with a descriptive title and an introductory sentence. Your document must have your name, the date, the assignment, and a title. Get in the habit of using a premade title pages for MS Word and PowerPoint Use mine as a template if you like 79

Separate Different Topics Make sure that your reader can quickly find the section he or she is looking for. If you are covering more then one topic, each topic needs to have a titled section. 80

Section Titles Use logical sections and subsections Title each so that so that the content is obvious 81

Section Titles Use logical sections and subsections Title each so that so that the content is obvious “Introduction” is not a good subsection title for the introduction “Analysis” is not a good subsection title of the analysis section 82

83 Color and other embellishments Color, you can use color but your document but figures should work in B&W if possible. Hyperlinks, you should use them but the web address must appear in a footnote or the reference section. Animations, movies and sound files can be helpful but can also be trouble. Be aware that some of your readers will not be able to access them.

84 Refine Documentation Each member of the group should be sure that you bring ALL electronic files everyday SolidWorks drawings

85 Documentation Each member of the group should be sure that you bring all electronic files everyday SolidWorks drawings Excel budget and receipts Taken from

86 Documentation Each member of the group should be sure that you bring all electronic files everyday SolidWorks drawings Excel budget, must be this version or have this information Taken from

87 Documentation Each member of the group should be sure that you bring all electronic files everyday SolidWorks drawings Excel budget, must be this version or have this information Item(s) Date of purchase Supplier Date received Total cost (items + shipping and anything else) Who’s credit was used Name of the receipt pdf file One line per transaction Taken from

88 Documentation Please bring all your electronic files everyday SolidWorks drawings Excel budget Taken from It’s best to use the document that I started

89 Documentation Please bring all your electronic files everyday SolidWorks drawings Excel budget Taken from It’s best to use the document that I started It’s on the class web page

90 Design Support Documents Taken from 1)Gantt chart A timeline with milestones, component delivery dates, estimated dates of the completions of sub-tasks. This can be a separate Excel document. 2) Weight and drag budget A document that lists target, design and as-build weight and location for all components on the plane. Specifically state what are estimates and what was calculated in SolidWorks and what was measured as-built. Include the coordinates of the CGs for all subsystem. The coordinates must be in a defined, single coordinate system and include a figure that shows the plane, coordinate system and centers. This should be in the main MS Word document.

91 Design Support Documents Taken from 3) Cost budget & parts inventory A list of all component parts you will include in your plane. You should have links to data sheets. The budget should include all planed expenditures and all money spent by your group related to the project. This is can be a summary of a separate Excel spread sheet. You must save all receipts. 4) Toolbox inventory A specific list of all tools, bolts and any other hardware with sized. Do not include this in the Excel document. This should be in the main MS Word document. 5) Safety protocols Read the new School of Engineering Safety document and write a statement that indicates that you have read and will comply with all points of the School of Engineering Safety. This document must be signed by all team members.

92 Design Support Documents Taken from 3) Cost budget & parts inventory A list of all component parts you will include in your plane. You should have links to data sheets. The budget should include all planed expenditures and all money spent by your group related to the project. This is can be a summary of a separate Excel spread sheet. You must save all receipts. 4) Toolbox inventory A specific list of all tools, bolts and any other hardware with sized. Do not include this in the Excel document. This should be in the main MS Word document. 5) Safety protocols Read the new School of Engineering Safety document and write a statement that indicates that you have read and will comply with all points of the School of Engineering Safety. This document must be signed by all team members. Plus send Ken your SolidWorks

93 Group Purchases Taken from We need to purchase: charger Charge level indicator

94 SAE Reports Taken from Please don’t resubmit last semesters reports

95 Materials and Purchasing It is very import that we straighten the budget today Taken from

96 Materials and Purchasing It is very import that we straighten the budget today Taken from

97 Materials and Purchasing It is very import that we straighten the budget today

98 Materials and Purchasing It is very import that we straighten the budget today

99 Materials I can cut materials for you to any dimension, exactly to the dimensions you give me.

100 Expediency Be sure you are making design decisions based on engineering principles. Please don’t Taken from

101 Materials Ask Ken to bring specific material you need Taken from Ken

102 Materials and Purchasing It is very import that we straighten the budget today There are problems with the credit card MNEY

103 Materials and Purchasing It is very import that we straighten the budget today There are problems with the credit card The card problems include the lost receipts from this class MNEY

104 Materials and Purchasing Hong right away to schedule time She is nicer that I am and will help you

105 Flight Testing Jim and Ed want to test Tuesday, Feb 25 Taken from That’s 7 days off

106 Flight Testing I’m hoping that Ken will schedule and do the technical inspection and taxi tests with you Taken from …and you have to do the taxi test and technical inspection before the flight test SMTWThFS Today Flight Test SAE Deadline May 1 I’m still working on this but the big issues is

107 Machine Shop Please work with Don, Hong or anyone that has built things Show them sketches of ideas and be open to new ideas This will make it easier for you Taken from

108 Machine Shop Please work with Don, Hong or anyone that has built things Show them sketches of ideas and be open to new ideas Simplify your design Settle on the details Taken from

109 Assignment 2 Fix assignment 1 A number of groups did not submit assignment 2 or didn’t really update anything Taken from

110 Assignment 2 Fix assignment 1 Toolbox Please just list what you need to carry to the airfield. Glue that take overnight to dry is probably not appropriate for that list but cyanoacrylate glue (Superglue) is You should know what each screw is for Taken from

111 Assignment 2 Fix assignment 1 Toolbox Please just list what you need to carry to the airfield. Glue that take overnight to dry is probably not appropriate for that list but cyanoacrylate glue (Superglue) is You should know what each screw is for Please don’t list random items Taken from

112 Assignment 2 Fix assignment 1 Toolbox Please just list what you need to carry to the airfield. Glue that take overnight to dry is probably not appropriate for that list but cyanoacrylate glue (Superglue) is You should know what each screw is for Please don’t list random items ¼” screws Taken from

113 Assignment 2 Fix assignment 1 Toolbox Please just list what you need to carry to the airfield. Glue that take overnight to dry is probably not appropriate for that list but cyanoacrylate glue (Superglue) is You should know what each screw is for Please don’t list random items ¼” screws, a hammer Taken from

114 Assignment 2 Fix assignment 1 Toolbox Please just list what you need to carry to the airfield. Glue that take overnight to dry is probably not appropriate for that list but cyanoacrylate glue (Superglue) is You should know what each screw is for Please don’t list random items ¼” screws, a hammer, weed wacker Taken from

115 Assignment 2 Fix assignment 1 Toolbox Please just list what you need to carry to the airfield. Glue that take overnight to dry is probably not appropriate for that list but cyanoacrylate glue (Superglue) is You should know what each screw is for Please don’t list random items ¼” screws, a hammer, weed wacker Taken from

116 Assignment 2 Fix assignment 1 Toolbox Please just list what you need to carry to the airfield. Ask Jason, Hong, Ken or me what you really need Taken from

117 Money Lets start with the group that has the most people here Taken from

118 Money Thanks for the help resolving the credit card issues Taken from

119 Flight Testing Jim and Ed want to test Monday, Feb 24 Taken from

120 Flight Testing Jim and Ed want to test Monday, Feb 24 Taken from SMTWThFS 6 Today Flight Test I’m still working on this but the big issues is

121 Flight Testing Jim and Ed want to test Monday, Feb 24 Taken from …and you have to do the taxi test and technical inspection before the flight test I’m still working on this but the big issues is SMTWThFS 6 Today tech insp taxi test Flight Test

122 So Given the Calendar Work with Ken, Hong, Don, and Me Taken from

123 Flight Test I would like you to make all the arrangements regarding getting up to the airfield Tuesday. Taken from

124 Money Thanks for the help resolving the credit card issues Today we can start with group ? Taken from

125 Myths and Truths Myths Gorilla Glue is no stronger than ordinary carpenters glue Taken from

126 Myths and Truths Myths Gorilla Glue is no stronger than ordinary carpenters glue You can make a part bigger then the travel range of the CNC machine Taken from

127 Myths and Truths Myths Gorilla Glue is no stronger than ordinary carpenters glue You can make a part bigger then the travel range of the CNC machine Ken brought enough wood for everyone Taken from Ken

128 Myths and Truths Myths Gorilla Glue is no stronger than ordinary carpenters glue You can make a part bigger then the travel range of the CNC machine Ken brought enough wood for everyone Purchase always come through as hoped Taken from

129 Myths and Truths Truths Round holes are easier to make then not round holes Taken from

130 Myths and Truths Truths Round holes are easier to make then not round holes Hong needs some sleep Taken from

131 You need to know where the CG is Weighted averages. x y

132 Mass and Aerodynamic Centers Weighted averages. x y

133 Mass and Aerodynamic Centers Weighted averages. Pick an origin x y

134 Mass and Aerodynamic Centers Weighted averages. Pick an origin, make a table x y componentMass (kg)x-location (cm) engine fuselage2.175 Wing2.327 Front landing gear Rear landing gear Fuel tank0.338 Radio reciever0.257 tail Payload Total

135 Mass and Aerodynamic Centers Weighted averages. Pick an origin, make a table x y componentMass (kg)x-location (cm) engine fuselage2.175 Wing2.327 Front landing gear Rear landing gear Fuel tank0.338 Radio reciever0.257 tail Payload Total cm

136 Mass and Aerodynamic Centers Each component that is exposed to the exterior flow Has a net drag force that acts on that component The magnitude of that force is 51.2 cm These drag forces occur at specific locations These location must be determined Once you have them x z

137 Mass and Aerodynamic Centers Each component that is exposed to the exterior flow Has a net drag force that acts on that component The magnitude of that force is x z 51.2 cm These drag forces occur at specific locations These location must be determined Once you have them

138 Mass and Aerodynamic Centers x z 51.2 cm Once you have them… DRAW A FREE BODY DIAGRAM

139 Mass and Aerodynamic Centers Once you have them Then sum forces and moments mg thrust Wing drag tail drag fuselage drag

140 Mass and Aerodynamic Centers Once you have them Then sum forces and moments mg thrust Wing drag tail drag fuselage drag x z

141 Mass and Aerodynamic Centers Once you have them Then sum forces and moments mg thrust Wing drag tail drag fuselage drag x z

142 Mass and Aerodynamic Centers Once you have them Then sum forces and moments mg thrust Wing drag tail drag fuselage drag x z

143 Mass and Aerodynamic Centers Once you have them Then sum forces and moments mg thrust Wing drag tail drag fuselage drag x z

144 Mass and Aerodynamic Centers This summing for moments is precisely the same as the weighted average x z 51.2 cm componentNet drag (N)z-location (cm) x-location (cm fuselage Wing Front landing gear Rear landing gear tail Total40.7

145 You MUST include this information This summing for moments is precisely the same as the weighted average x z 51.2 cm componentNet drag (N)z-location (cm) x-location (cm fuselage Wing Front landing gear Rear landing gear tail Total40.7 So have a figure with YOUR plane, a coordinate system, and the location of the centers

146 Design to Meet Objectives The objectives are requirements and constraints Requirements and constraints are separate Requirements: what you are expecting from the full system or subsystem Constraints: what you are stuck with They must be specific

147 Design to Meet Objectives The objectives are requirements and constraints Requirements and constraints are separate Requirements: what you are expecting from the full system or subsystem Constraints: what you are stuck with They must be specific Landing gear must be strong enough

148 Design to Meet Objectives The objectives are requirements and constraints Requirements and constraints are separate Requirements: what you are expecting from the full system or subsystem Constraints: what you are stuck with They must be specific Landing gear must be strong enough Must remain elastic for 3 f/s vertical fall will transferring less that a 2 g impulse to the fuselage

Requirements and Constraints There MUST be requirements and constraints for the plane itself Every subsystem MUST have bulletined requirements and constraints listed separately The should have numbers and be specific

Fuselage Requirements Hold: 4 cell battery (based on 6 minute flight) z57 model radio receiver (with link to data sheet) 27 lbs payload at plane’s unloaded CG and wing’s CL Removable wing mount able to transfer 42 lbs from wing to fuselage. Engine mount within ± ½ in of current estimate of plane’s aerodynamic center Transfer 2 x planes full weight (84 lbs) to landing gear … Support 2.5 lb horizontal force generated by tail with rudder at full deployment …

151 ME 442 Senior Project Week 3 Dr. Joseph Vignola Pangborn G43, Phone , Tuesdays & Thursdays, 9:35-12:25 AM, Pangborn G43 Office Hours: Tuesdays, 1:00-2:00 PM

Week 3 Build

Week 3 Please your t-shirt size to Ms. Hicks and Nicole Bull Today I would like to see Excel budgets