Uncertainty Propagation in Integrated Airframe–Propulsion System Analysis for Hypersonic Vehicles

Air-breathing hypersonic vehicles are based on an airframe-integrated scramjet engine. The elongated forebody that serves as the inlet of the engine is subject to harsh aerothermodynamic loading, which causes it to deform. Unpredicted deformations may produce unstart, combustor chocking, or structural failure due to increased loads. An uncertainty quantification framework is used to propagate the effects of aerothermoelastic deformations on the performance of the scramjet engine. A loosely coupled airframe-integrated scramjet engine is considered. The aerothermoelastic deformations calculated for an assumed trajectory and angle of attack are transferred to a scramjet engine analysis. Uncertainty associated with deformation prediction is propagated through the engine performance analysis. The effects of aerodynamic heating and aerothermoelastic deformations at the cowl of the inlet are the most significant. The cowl deformation is the main contributor to the sensitivity of the propulsion system performance...

[1]  Gene H. Golub,et al.  Calculation of Gauss quadrature rules , 1967, Milestones in Matrix Computation.

[2]  Ramon Chase,et al.  The Quest for Hypersonic Flight with Air-Breathing Propulsion , 2008 .

[3]  David B. Doman,et al.  Nonlinear Longitudinal Dynamical Model of an Air-Breathing Hypersonic Vehicle , 2007 .

[4]  Ranjan Ganguli,et al.  Material uncertainty propagation in helicopter nonlinear aeroelastic response and vibration analysis , 2008 .

[5]  Sean M. Torrez,et al.  New Method for Computing Performance of Choked Reacting Flows and Ram-to-Scram Transition , 2013 .

[6]  Randall T. Voland,et al.  X-43A Hypersonic vehicle technology development , 2006 .

[7]  Russell M. Cummings,et al.  Fifty years of hypersonics: where we've been, where we're going , 2003 .

[8]  Ronald S. Fry,et al.  A Century of Ramjet Propulsion Technology Evolution , 2004 .

[9]  A. Henckels,et al.  Manipulation of Shock/Boundary-Layer Interactions in Hypersonic Inlets , 2001 .

[10]  Michael A. Bolender,et al.  Modeling Unsteady Heating Effects on the Structural Dynamics of a Hypersonic Vehicle , 2006 .

[11]  Peter K. Shih,et al.  Thermostructural concepts for hypervelocity vehicles , 1991 .

[12]  Alain Wagner,et al.  Systems Challenges for Hypersonic Vehicles , 1997 .

[13]  Anthony S. Pototzky,et al.  Impact of Aeroelastic-P ropulsive Interactions on Flight Dynamics of a Hypersonic Vehicle , 1995 .

[14]  L Hunt James,et al.  NASA''s Dual-Fuel Airbreathing Hypersonic Vehicle Study , 1996 .

[15]  S. C. Dixon,et al.  Materials and structures for hypersonic vehicles , 1989 .

[16]  Jack J. McNamara,et al.  Studies on Fluid-Thermal-Structural Coupling for Aerothermoelasticity in Hypersonic Flow , 2010 .

[17]  Matthew Fotia,et al.  Reduced-Order Modeling of Two-Dimensional Supersonic Flows with Applications to Scramjet Inlets , 2010 .

[18]  William H. Heiser,et al.  Hypersonic Airbreathing Propulsion , 1994 .

[19]  Srikanth Sridharan,et al.  Modeling and Control of Scramjet-Powered Hypersonic Vehicles: Challenges, Trends, & Tradeoffs , 2008 .

[20]  David K. Schmidt,et al.  Flight dynamics and control of elastic hypersonic vehicles - Modeling uncertainties , 1994 .

[21]  R. L. Bisplinghoff,et al.  Some Structural and Aeroelastic Considerations of High-Speed Flight The Nineteenth Wright Brothers Lecture , 1956 .

[22]  Richard Hallion.  The History of Hypersonics: Or, 'Back to the Future: Again and Again' , 2005 .

[23]  Douglas J. Dolvin,et al.  Hypersonic International Flight Research and Experimentation (HIFiRE) Fundamental Sciences and Technology Development Strategy , 2008 .

[24]  Ahsan Iqbal,et al.  Dual-fuel vehicle airframe and engine structural integration , 1996 .

[25]  Karthik Duraisamy,et al.  Uncertainty quantification and error estimation in scramjet simulation , 2011 .

[26]  Bryan Glaz,et al.  Uncertainty Propagation in Hypersonic Aerothermoelastic Analysis , 2010 .

[27]  L Blosser Max,et al.  Parametric Weight Comparison of Current and Proposed Thermal Protection System (TPS) Concepts , 1999 .

[28]  Chris L. Pettit,et al.  Uncertainty Quantification in Aeroelasticity: Recent Results and Research Challenges , 2004 .

[29]  Baris Fidan,et al.  Flight Dynamics and Control of Air-Breathing Hypersonic Vehicles: Review and New Directions , 2003 .

[30]  G. Iaccarino,et al.  Risk assessment of scramjet unstart using adjoint-based sampling methods , 2012 .

[31]  J. Friedman.  Multivariate adaptive regression splines , 1990 .

[32]  William L. Ko,et al.  Combined compressive and shear buckling analysis of hypersonic aircraft sandwich panels , 1992 .

[33]  Sean M. Torrez,et al.  Rapid Analysis of Scramjet and Linear Plug Nozzles , 2012 .

[34]  M. Eldred,et al.  Comparison of Non-Intrusive Polynomial Chaos and Stochastic Collocation Methods for Uncertainty Quantification , 2009 .

[35]  Carlos E. S. Cesnik,et al.  Hypersonic Vehicle Flight Dynamics with Coupled Aerodynamics and Reduced-order Propulsive Models , 2010 .

[36]  Leslie Gong,et al.  Thermostructural Analysis of Unconventional Wing Structures of a Hyper-X Hypersonic Flight Research Vehicle for the Mach 7 Mission , 2001 .

[37]  Sean M. Torrez,et al.  Scramjet Engine Model MASIV: Role of Mixing, Chemistry and Wave Interaction , 2009 .

[38]  Michael K. Smart,et al.  Experimental testing of a hypersonic inlet with rectangular-to-elliptical shape transition , 1999 .

[39]  Peretz P. Friedmann,et al.  Aeroelastic and Aerothermoelastic Behavior in Hypersonic Flow , 2008 .

[40]  Stephan Staudacher,et al.  Probabilistic Aspects of Scramjet Design , 2009 .

[41]  John Dugundji,et al.  Similarity Laws for Aerothermoelastic Testing , 1962 .

[42]  Matthew Fotia,et al.  Preliminary Design Methodology for Hypersonic Engine Flowpaths , 2009 .