Backup Slides Project Bellerophon 1 Trajectory - Steering

Backup Slides Project Bellerophon 1 Trajectory - Steering

Backup Slides Project Bellerophon 1 Trajectory - Steering Law Function of time Defines the orientation of the launch b vehicle r 1ee 2ee b 3ee Project Bellerophon 2 Model Analysis Launch Vehicle Stage 1 Stage 2 Stage 3 Launch Method Ground Material Propellant Aircraft

Aluminum Cryogenic Steel Storable Titanium Hybrid Balloon Solid 5,616 possible combinations for each payload Project Bellerophon 3 Historical Catastrophic Risk Pegasus Number of Launches 10 20 30 Success of Previous 10 Launches 60.00 % 80.00 % 100.00 % s Our Vehicles Number of Launches Less than 12 Less than 24 24 or greater Project Bellerophon

Success Rate 60.00 % 80.00 % 93.84 % 4 Aircraft Steering Law Parameter Optimization To be optimized 1st Stage: tangent law 2e5% tb2e 2nd Stage: 3 linear sections 2e5% tb2e mid1e=5 deg mid2e=0 deg e2e tclimb Project Bellerophon tb2e 5 Definition of Eccentricity e = c/a b: Semi-Minor Axis c: center to focus a: Semi-Major Axis Project Bellerophon 6 Risk Assessment - Non-Catastrophic Failure Monte Carlo Histograms - 200g Payload

200g Periapsis Altitude Histogram; std = 21.803 km, mean = 437.44 km 200g Eccentricity Histogram; std = 0.0467, mean = 0.438 Project Bellerophon 7 Risk Assessment - Non-Catastrophic Failure Monte Carlo Histograms - 1kg Payload 1kg Periapsis Altitude Histogram; std = 15.774 km, mean = 367.727 km 1kg Eccentricity Histogram; std = 0.041094, mean = 0.173289 Project Bellerophon 8 Risk Assessment - Non-Catastrophic Failure Monte Carlo Histograms - 5kg Payload 5kg Periapsis Altitude Histogram; std = 20.215 km, mean = 516.546 km 5kg Eccentricity Histogram; std = 0.050, mean = 0.445 Project Bellerophon 9 Performance Characteristics - 200 g Payload BALLOON STRUCTURE GONDOLA STRUCTURE Features Minimum volume: Maximum volume: Minimum diameter: Maximum diameter: 3237.7 m3 279,950 m3 18.3547 m 81.1635 m

Features Dimensions: Material: Thickness: Weight: Material: Gas used: Shape: Polyethylene plastic film Helium Spherical Features Propellant type: STRUCTURES Features Length: Stage 1 Stage 2 Stage 3 Diameter: Stage 1 Stage 2 Stage 3 Inert mass: [1] Stage 1 Stage 2 Stage 3 Material: Stage 1 Stage 2 Stage 3 Thickness: [2] Stage 1 Stage 2 Stage 3 Project Bellerophon PROPULSION

0.0037 m 0.0055 m 0.0022 m Stage 1 Stage 2 Stage 3 Propellant amount: Stage 1 Stage 2 Stage 3 Engine type: Stage 1 Stage 2 Stage 3 Thrust: Stage 1 Stage 2 Stage 3 ISP: Stage 1 Stage 2 Stage 3 Expansion ratio: Stage 1 Stage 2 6.024 kg 30.2664 kg 1.2 kg 200 Watts Stage 3 60 NOTES 1. Inert masses include tank, skirt, and nose cone masses. 2. Thickness values pertain to the fuel tanks. 3. Gondola square base width and length. 4. Gondola height. 5. Used for LITVC. 4.9929 m 1.7678 m 0.9874 m

1.3015 m 0.6741 m 0.2721 m 349.477 kg 153.4559 kg 14.8011 kg Al Al Al AVIONICS Features Mass: Stage 1 Stage 2 Stage 3 Total system power: 0.876[3] x 0.876[3] x 3.346[4] m3 Aluminum 0.04 m 177.188 kg H2O2 & HTPB HTPB/AP/Al & H 2O2[5] HTPB/AP/AL 1462.00 kg 566.64 kg 37.26 kg Hybrid Solid Solid 34045.3 N 8782.6 N 625 N 352.3 seconds 309.3 seconds 309.3 seconds 60 60 10 Performance Characteristics - 1 kg Payload

BALLOON STRUCTURE GONDOLA STRUCTURE Features Minimum volume: Maximum volume: Minimum diameter: Maximum diameter: 2,197.9 m3 190,040 m3 16.1312 m 71.3312 m Features Dimensions: Material: Thickness: Weight: Material: Gas used: Shape: Polyethylene plastic film Helium Spherical Features Propellant type: STRUCTURES Features Length: Stage 1 Stage 2 Stage 3 Diameter: Stage 1 Stage 2 Stage 3 Inert Mass: [1] Stage 1

Stage 2 Stage 3 Material: Stage 1 Stage 2 Stage 3 Thickness: [2] Stage 1 Stage 2 Stage 3 Project Bellerophon PROPULSION 0.0032 m 0.0046 m 0.0024 m Stage 1 Stage 2 Stage 3 Propellant amount: Stage 1 Stage 2 Stage 3 Engine type: Stage 1 Stage 2 Stage 3 Thrust: Stage 1 Stage 2 Stage 3 ISP: Stage 1 Stage 2 Stage 3 Expansion ratio: Stage 1 Stage 2 6.024 kg 30.2664 kg

1.2 kg 200 Watts Stage 3 60 NOTES 1. Inert masses include tank, skirt, and nose cone masses. 2. Thickness values pertain to the fuel tanks. 3. Gondola square base width and length. 4. Gondola height. 5. Used for LITVC. 4.1555 m 1.4816 m 1.0554 m 1.1264 m 0.5669 m 0.2900 m 97.0893 kg 30.6403 kg 5.8567 kg Al Al Al AVIONICS Features Mass: Stage 1 Stage 2 Stage 3 Total system power: 1[3]x1[3]x3.849[4] m3 Aluminum 0.04 m 227.114 kg H2O2 & HTPB HTPB/AP/Al & H 2O2[5] HTPB/AP/Al 947.9 kg 336.92 kg 45.09 kg

Hybrid Solid Solid 21435.5 N 6052.4 N 743.4 N 352.3 seconds 309.3 seconds 309.3 seconds 60 60 11 Performance Characteristics - 5 kg Payload Project Bellerophon 12 200 g Failure Project Bellerophon 13 1 kg Failure Project Bellerophon 14 John Tsohas Table 200 g Payload Stage mprop/(mi+mprop) V/stage mstage/GLOM Isp

1 80.7% 3,808 m/s (32%) 70.11% 352.2s 2 78.69% 4,358 m/s (37%) 27.87% 309.3s 3 71.57% 3,740 m/s (31%) 2.02% 309.3s 1 kg Payload 1 77.11% 3,818 m/s (39%) 70.48% 352.2s 2 74.3%

3,211 m/s (32%) 25.97% 309.3s 3 72.7% 2,864 m/s (29%) 3.55% 309.3s 5 kg Payload 1 83% 3,211 m/s (32%) 78.95% 352.2s 2 79.44% 3,963 m/s (39%) 20.2% 309.3s 3 71.76% 2,978 m/s (29%)

0.85% 309.3s mstage/GLOM Isp Saturn V Stage mprop/(mi+mprop) 1 94.09% 75.83% 265-310s 2 92.04% 16.28% 421s 3 44.81% 7.89% 421s V/stage Ariane 5 ECA 1 86.28%

71.81% 250-275s 2 93.17% 24.00% 434s 3 44.31% 4.19% 446s Project Bellerophon 15 John Tsohas Table II Prop mass fraction 3rd stage Payload mass fraction Payload mass fraction (3rd Stage) 200 g 0.0038 0.0077% 0.38% 1 kg 0.016

0.05733% 1.64% 5 kg 0.0935 0.07949% 9.35% Prop mass fraction 3rd stage Payload mass fraction Payload mass fraction (3rd Stage) Saturn V 0.0354 3.91% 49.6% Ariane 4 0.0186 2.06% 1.64% Payload Vehicle Project Bellerophon 16

Recently Viewed Presentations

  • AIE (Alliance for International Education) 11th World ...

    AIE (Alliance for International Education) 11th World ...

    AIE (Alliance for International Education) 11th World Conference, 'Rethinking International Education: Values and Relevance', International School of Geneva / École Internationale de Genève (Ecolint), Geneva, Switzerland, 18-20 October 2019. International education philosophies with polymath prospects and planetary potentials?
  • Budgeting: Making the Most of Your Money

    Budgeting: Making the Most of Your Money

    Assignment 2-1 How am I Doing? Compare your spending log from Unit 1 with your financial plan. How well your current spending habits represents your financial goals? If not what type of budget (spending plan) are we going to have...
  • Welcome Volunteers

    Welcome Volunteers

    Welcome to our school !!!!!As a first time Waverley volunteer, we ask that you please read through this presentation to familiarize your self with our procedures. After completing your read through, please print out and complete the Confidentiality and return...
  • Emergence of Wireless Pole Attachments in Chelan County

    Emergence of Wireless Pole Attachments in Chelan County

    Emergence of Wireless Pole Attachments in Chelan CountyTri-Commission Presentation. March 28, 2017. Overview. Wireless industry growth. What are wireless attachments. Implications for local governments in Chelan County. Strategic considerations/Next steps. ... Utility Pole Example. Streetlight ...
  • I/O - Binghamton

    I/O - Binghamton

    Recap: Busses Fundamental tool for designing and building computer systems divide the problem into independent components operating against a well defined interface processor, memory, I/O compose the components efficiently Shared collection of wires command, address, data Communication path between multiple...
  • Life above 70cm?

    Life above 70cm?

    Examples 70, 23, 13 & 3 cm. GPS locking etc. Typical transverter: Block diagram 3 cm with Gunn diodes The old way; using gun diodes or even Klystrons for wideband FM working. Simple to build with 30 MHz IF. Generally...
  • 2.5.2.G1 Receiving from Family, Friends & Non-Profits 2.5.2.G1

    2.5.2.G1 Receiving from Family, Friends & Non-Profits 2.5.2.G1

    Funded by a grant from Take Charge America, Inc. to the Norton School of Family and Consumer Sciences Take Charge America Institute at the University of Arizona 2.5.2.G1 You can benefit from non-profits in two primary ways…
  • Cassini-Huygens Mission to Saturn 3rd Anniversary

    Cassini-Huygens Mission to Saturn 3rd Anniversary

    Outline Question is where on Europa should we land to find material that is least radiation-processed? Lessons from Saturn images show persistent "plasma bull's eye" centered on trailing apex and lens feature around leading apex due probably to energetic electrons...