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Safety Analysis of an Airship Which Loses Lifting Gas from the Hull
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 30, 2018 by SAE International in United States
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This study investigates the physical phenomena that affect a high-altitude airship in the presence of lifting gas losses from the hull. General atmospheric thermodynamics and basic physical principles are adopted to describe the behavior of an airship with envelope failures that generate buoyant gas dispersion or depressurisation phenomena. Overpressure that could grant to maintain some controllability during a large part of the descent is assessed by mean of the thermodynamic model of the envelope in the presence of gas losses. Optimisation of the inflation parameters is provided and the conditions for avoiding dangerous crashes on the ground and the potential recovery of a damaged vehicle, people and its payload. In particular, the requirements for a slow depressurisation is computed by the equilibrium with the atmosphere and then how can it be possible to sustain controlled navigation are determined. A key factor for security relates directly to the capability of preserving some airship balloon overpressure for the longest time possible. This condition can extend much the range of control. Complete forfeit conditions will be determined to demonstrate that airship cannot be anymore controllable below 20% of the initial altitude at which the failure has started.
In some cases, specific manoeuvres could allow configuring the deflated balloon as a parachute, if coupled with adequate safety systems. This research about safety conditions will also be useful for designing safety systems. A general guideline for safety systems has been defined showing that airship if well created and well governed in emergency conditions will be much safer than any other aerial vehicle.
CitationTrancossi, M., Pascoa, J., and Cannistraro, G., "Safety Analysis of an Airship Which Loses Lifting Gas from the Hull," SAE Technical Paper 2018-01-1954, 2018, https://doi.org/10.4271/2018-01-1954.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
- CORDIS , Multibody Advanced Airship for Transport, CORDIS (Community Research and Development Information Service), European Commission, Brussels, 2011 http://cordis.europa.eu/search/index.cfm?fuseaction=proj.document&PJ_LANG=EN&PJ_RCN=12149444&pid=8&q=1DBC26FEDA78A901E7C4E7F31040F180&type=adv.
- CORDIS , MAAT Project - Multibody Advanced Airship for Transport - Has Started, CORDIS Wire, CORDIS (Community Research and Development Information Service), European Commission, Brussels, 2011, http://cordis.europa.eu/wire/index.cfm?fuseaction=article.Detail&rcn=28667.
- Dumas, A., Trancossi, M., Madonia, M., and Giuliani, I. , “Multibody Advanced Airship for Transport,” SAE Technical Paper 2011-01-2786 , 2011, doi:10.4271/2011-01-2786.
- Dumas, A., Madonia, M., Giuliani, I., and Trancossi, M. , “MAAT Cruiser/Feeder Project: Criticalities and Solution Guidelines,” SAE Technical Paper 2011-01-2784 , 2011, doi:10.4271/2011-01-2784.
- Topping, D. . In: Eric Brothers , editor. When Giants Roamed the Sky. (Akron, OH, University of Akron Press, 2001).
- Whale, G. , British Airships, Past/Present/Future (London: Blackmask Online, 2002).
- Ridley-Kitts, D.G. , Military, Naval and Civil Airships since 1783: The History and Development of the Dirigible Airship in Peace and War (UK: The History Press, 2012).
- Vogt, C.W. , “Performance Capability of a Damaged Lighter-Than-Air Vehicle,” MS thesis, Department of Aeronautics and Astronautics, Graduate School of Engineering and Management, Air Force Institute of Technology, 2006.
- Khoury, G.A. and Gillett, J.D. , Air Ship Technology (Cambridge University Press, 1999).
- Mueller, J.B., Paluszek, M.A., and Zhao, Y. , “Development of an Aerodynamic Model and Control Law Design for a High Altitude Airship,” “Unmanned Unlimited” Technical Conference Workshop and Exhibit, AIAA-2004-6479, Chicago IL, Sept. 20-23, 2005.
- Kreider, J.F. , “Mathematical Modeling of High Altitude Balloon Performance,” AIAA 5th Aerodynamic Deceleration Systems Conference, AIAA-75-1385, Albuquerque, NM, Nov 17-19, 1975.
- Zucker, R.D. and Biblarz, O. , Fundamentals of Gas Dynamics Second Edition (Wiley Books, 2002).
- Bohren, C.F. and Albrecht, B.A. , Atmospheric Thermodynamics (New York: Cambridge University Press, 1998).
- Moran, M. and Shapiro, H. , Fundamentals of Engineering Thermodynamics Fourth Edition (Wiley, 2000).
- VV.AA., “U.S. Standard Atmosphere,” OAA, NASA, USAF, U.S. Government Printing Office, 1976, Washington, DC NOAA-S/T 76-1562. Part 1, 1976.
- Campbell, G.S. and Lahey, R. , “A Survey of Serious Aircraft Accidents Involving Fatigue Fracture,” International Journal of Fatigue 6(1):25-30, 1984.
- Bigün, E.S. , “Risk Analysis of Catastrophes Using experts’ Judgements: An Empirical Study on Risk Analysis of Major Civil Aircraft Accidents in Europe,” European Journal of Operational Research 87(3):599-612, 1995.
- Bristow, J.W. and Irving, P.E. , “Safety Factors in Civil Aircraft Design Requirements,” Engineering Failure Analysis 14(3):459-470, 2010.
- Ren, Y. and Xiang, J. , “A Comparative Study of the Crashworthiness of Civil Aircraft with Different Strut Configurations,” International Journal of Crashworthiness 15(3):321-330, 2010.
- Tiffany, C.F., Gallagher, J.P., Babish, I.V., and Charles, A. , “Threats to Aircraft Structural Safety Including a Compendium of Selected Structural Accidents/Incidents,” No. ASC-TR-2010-5002, 2010.
- Wang, X.L. and Shan, X.X. , “Shape Optimization of Stratosphere Airship,” Journal of Aircraft 43(1):283-286, 2006.
- Dumas, A., Madonia, M., Trancossi, M., and Vucinic, D. , “Propulsion of Photovoltaic Cruiser-Feeder Airships Dimensioning by Constructal Design for Efficiency Method,” SAE Int. J. Aerosp. 6:273-285, 2013, doi:10.4271/2013-01-2303.
- Trancossi, M., Dumas, A., Madonia, M., Pascoa, J. et al. , “Fire-Safe Airship System Design,” SAE Int. J. Aerosp. 5(1):11-21, 2012, doi:10.4271/2012-01-1512.
- Trancossi, M., Dumas, A., and Madonia, M. “Energy and Mission Optimization of an Airship by Constructal Design for Efficiency Method,” ASME International Mechanical Engineering Congress and Exposition, American Society of Mechanical Engineers, 2013, 2013, V001T01A021-V001T01A021.
- Trancossi, M., Dumas, A., and Madonia, M. , “Optimization of Airships with Constructal Design for Efficiency Method,” SAE Technical Paper 2013-01-2168 , 2013, doi:10.4271/2013-01-2168.
- Deckker, B.E.L. , “Compressible Flow through Square Edge Rectangular Orifices,” Proceedings of the Institution of Mechanical Engineers 192(1):277-288, 1978.
- Deckker, B.E.L. and Chang, Y.F. , “Paper 19: Slow Transient Compressible Flow through Orifices,” Proceedings of the Institution of Mechanical Engineers, Conference Proceedings 182(8):175-183, 1967.
- Lewitt, E.H. , The Rigid Airship; a Treatise on the Design and Performance (London: New York Sir I. Pitman & Sons, 1925).
- Allen, H. , “Pilot Killed Goodyear Blimp Plunges Ground Flames in Germany,” Daily Mail, 2011 http://www.dailymail.co.uk/news/article-2002935/Pilot-killed-Goodyear-blimp-plunges-ground-flames-Germany.html.
- Croft, J. , “Goodyear Blimp ‘Overloaded’ in Germany Crash,” Aviation Week and Space Technology, 2013 http://aviationweek.com/awin/goodyear-blimp-overloaded-germany-crash.
- Pant, R. , “A Methodology for Determination of Baseline Specifications of a Non-rigid Airship,” AIAA’s 3rd Annual Aviation Technology, Integration, and Operations (ATIO) Forum, 2003, 6830.
- VV.AA., “EASA Type Certificate EASA.AS.001”, EASA - European Aviation Safety Agency, 5, 2014. https://www.easa.europa.eu/sites/default/files/dfu/EASA-TCDS-AS.001_Zeppelin_LZ_N07--100-05-05082014.pdf
- Dumas, A., Trancossi, M., and Madonia, M. , “Effect of Altitude and Temperature on Volume Control of an Hydrogen Airship,” ASME International Mechanical Engineering Congress and Exposition: Fluids and Heat Transfer, Parts A, B, C, and D 7:499-512, 2012, doi:10.1115/IMECE2012-87575.