1 Stachiw, T., Khouli, F., Langlois, R. G., Afagh, F. F., and Ricciardi, J. (March 12, 2021). “A Computationally Low-Cost Method for Capturing Airframe Flexibility Effects in Landing Dynamic Simulations.” ASME. J. Comput. Nonlinear Dynam. April 2021; 16(4): 041004. https://doi.org/10.1115/1.4050242 Link
2 D. Kyrollos, T. Stachiw, R. Langlois, J. Green, “Injury Risk and Comfort Assessment Applied to Ambulance Transport”, 7th International Conference of Control, Dynamic Systems, and Robotics, 2020. doi: 10.11159/cdsr20.156 Link
3 S. Fadaei Naeini, A. Mazidi, F. Afgah and R. Langlois, “Flutter Stability Analysis of Parked Floating Wind Turbine Blades,” in Progress in Canadian Mechanical Engineering, vol. 3, Charlottetown, P.E.I., June 2020 Link
4 A. R. Schock and R. G. Langlois, “Simulation of Shipboard Operations for Skid-equipped Rotary-wing Aircraft,” in Progress in Canadian Mechanical Engineering, vol. 3, Charlottetown, P.E.I., June 2020 Link
5 T. A. Stachiw, F. Khouli, R. G. Langlois, and F. F. Afagh, “The Use of an Inerter in an Aircraft Landing Gear Suspension for Improved Passenger and Crew Comfort at Touchdown,” in AIAA SciTech 2020, Orlando, FL, 2020, AIAA-2020-1681. doi: 10.2514/6.2020-1681
6 T. A. Stachiw, F. Khouli, R. G. Langlois, and F. F. Afagh, “The Effect of Airframe Flexibility on Dynamic Landing Gear Loads,” presented at CASI AERO 2019, Laval, QC, 2019. Link
7 Zuneid Ala; Fred Afagh; Robert Langlois; 2017; “Efficient Identification of Naval High Speed Craft Shock Mitigation Seat Modal Parameters From Drop-test Data”; ASME Journal of Dynamic  Systems, Measurement, and Control, Vol. 139, pp 031009 (1-10). PDF
8 Khouli, F. F. Afagh, and R. G. Langlois,“Design, Simulation, and Experimental Results for Highly Flexible Rotors in a Ship Airwake”, AIAA – Journal of Aircraft, Vol. 53, Issue 1, January 2016, pp. 262-275. Link
9 Matthew Bourassa, Bruce Burlton, Fred Afagh, Rob Langlois; 2015; “Exploiting Lunisolar Perturbations Using the Grazing Method: An Orbit Control Strategy for a Satellite in a Critically-Inclined Highly Eccentric Orbit around the Earth”; Acta Astronautica, vol. 115,  pp. 71-81 Link
10 Matthew Bourassa, Bruce Burlton, Fred Afagh, Rob Langlois; 2015; “Switch Points for Highly Eccentric Orbits: Modelling the Occurrences of Sign Changes in the Rate of Change of the Eccentricity”; Acta Astronautica,  vol. 111,  pp. 270-282. Link
11 Bourassa, Matthew; Burlton, Bruce; Langlois, Robert; Fred Afagh; 2014, “Exploring Lunisolar Perturbations Using the Grazing Method: An Orbit Control Strategy For A Satellite In A Critically-Inclined Highly Eccentric Orbit Around The Earth”; Proceedings of 65th International Astronautical Congress, IAC-14-C1.5.2, Toronto, Canada; 15 pages. Link
12 Gurwinder Kaur; Robert Langlois; Fred Afagh; 2014, “Mechanical Energy Expenditure While Maintaining Postural Stability In Shipboard Motion Environments Pt II: Results”; Proceedings of the International Conference of Control, Dynamic Systems, and Robotics, Paper No. 110; Ottawa, Ontario, Canada, May;15-16 2014; pp. 110-1 to 110-8.
13 Gurwinder Kaur; Fred Afagh; Robert Langlois; 2014, “Mechanical Energy Expenditure While Maintaining Postural Stability In Shipboard Motion Environments Pt I: Methodology”; Proceedings of the International Conference of Control, Dynamic Systems, and Robotics, Paper No. 108; Ottawa, Ontario, Canada, May ;15-16 2014; pp. 108-1 to 108-6. Link
14 Wall, A.S.; Zan, S.J.; Langlois, R.G. and Afagh, F.F.; 2013; “Correlated Turbulence Modelling: An Advancing Fourier Series Method”; Journal of Wind Engineering and Industrial Aerodynamics; vol 123, Part A; pp155-162. PDF
15 Bourassa, Matthew; Burlton, Bruce; Afagh, Fred; Langlois, Robert; 2013, “Switch Points For Highly Eccentric Orbits: Modelling The Occurrences Of Sign Changes In the Rate Of Change Of The Eccentricity”; Proceedings of 64th International Astronautical Congress, IAC-13-C1.9.9, Beijing, China; 14 pages. Link
16 Riazi, Mohammad; Afagh, Fred F.; Langlois, Robert G.; 2013, “Blade Sailing Phenomenon Modelling For Feedback Control”; Proceedings of 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference and Co-located Event, AIAA 2013-1715, Boston, USA; 20 pages.
17 Khouli, A. S. Wall, F. F. Afagh, and R. G. Langlois,“Influence of Ship Motion on the Aeroelastic Response of a Froude-scaled Maritime Rotor System”, Journal of Ocean Engineering, Vol. 54, , November 2012, pp. 170-181. Link
18 Riazi, Mohammad; Langlois, Robert G.; Afagh, Fred F.; 2012; “Aerodynamic Modelling of the Blade Sailing Phenomenon for Active Control”; Proceedings of International Conference on Mechanical Engineering and Mechatronics, Paper No 198, Ottawa, Canada; pp198(1) – 198(8). Link
19 Bourassa, M.; Burlton, B.; Afagh, F.; Langlois, R; 2012; “Modelling Luni-Solar Perturbations Acting on Highly Eccentric Earth-Orbiting Satellites”; Proceedings of Canadian Aeronautics and Space Institute (CASI) ASTRO 2010 Conference, Quebec City, Canada; 7 pages.
20 Khouli, J. Griffiths, F. F. Afagh, and R. G”. Langlois,“Actuation of Slender Thin-Wall Anisotropic Open Cross-Section Beams Based on Asymptotically-Correct Vlasov Theory,” Journal of Intelligent Material Systems and Structures, Vol. 21, No. 5, 2010, pp. 529-540.
21 Khouli, F. F. Afagh, and R. G. Langlois,“Application of the first order generalized-alpha method to the solution of an intrinsic geometrically exact model of rotor systems”, Journal of Computational and Nonlinear Dynamic, Vol. 4, Issue. 1, 2009 Link
22 Khouli, F.; Afagh, F.F.; Langlois, R.G.; 2009; “Control and Reduction of The Blade Sailing Phenomenon During Operation of Helicopters Using the Integral Active Twist Concept”; Proceedings of 8th International Symposium on Marine Engineering- ISME Busan 2009, Busan, Korea; 7 pages. Link
23 Khouli, F.; Wall, A.S.; Langlois, R.G.; Afagh, F.F.; 2009; “Investigation of the Aeroelastic Response of a Froude-Scaled Rotor System to Representative Ship Motion Using a 6DOF Stewart Motion Platform”; Proceedings of Canadian Aeronautics and Space Institute (CASI) AERO 2009 Conference, Ottawa, Canada, 12 pages.
24 Wall, A.S.; Afagh, F.F.; Langlois, R.G.; Zan, S.J.; 2008; “Modelling Helicopter Blade Sailing: Dynamic Formulation and Validation”; Journal of Applied Mechanics, vol. 75, 6, pp. 061004-1 to 061004-10;
25 Wall, A.S.; Khouli, F.; Afagh, F.F.; Langlois, R.G.; Zan, S.J.; 2008; “Modelling Helicopter Blade Sailing: Model Validation Using Experimental Data”; Proceedings of American Helicopter Society (AHS) 64th Annual Forum, AHS2008-000152, Montréal, Québec, Canada; 13 pages. Link
26 Khouli, F.; Wall, A.S.; Langlois, R.G.; Afagh, F.F.; 2008; “Investigation of the Feasibility of a Proposed Hybrid Passive and Active Control Strategy of the Transient Aeroelastic Response of Helicopters During Shipboard Engage and Disengage Operation”; Proceedings of American Helicopter Society (AHS) 64th Annual Forum, AHS2008-000164, Montréal, Québec, Canada; 20 pages.
27 Khouli, R. G. Langlois, and F. F. Afagh,“Analysis of active closed cross-section slender beams based on asymptotically correct thin-wall beam theory”, Smart Materials and Structures, Vol. 16, 2007, pp. 221-229 Link
28 Wall, A. S.; Langlois, R.G.; Afagh, F.F.; 2007; “Modelling Helicopter Blade Sailing: Dynamic Formulation in the Planar Case”; Journal of Applied Mechanics; vol.74, 6, pp 1104-1113. Link
29 RC15 Khouli, F.; Wall, A.S.; Langlois, R.G.; Afagh F.F.; Zan, S.J.; 2007; “Investigation of the Active-Twist Rotor Response of Various Rotor System Configurations during Shipboard Engagement and Disengagement Operations”; Proceedings of 18th International Conference on Adaptive Structures and Technologies, Ottawa, Canada; 10 pages Link
30 Wall, A.S.; Zan, S.J.; Langlois, R.G.; Afagh, F.F.;  2007; “Modelling Helicopter Blade Sailing:  Contributions from Ship Motion and Airwake”; Proceedings of the CASI AERO 2007 Conference, Toronto, Ontario, Canada, 12 pages.
31 Khouli, F.; Afagh, F.F.; Langlois, R.G.; 2006; “Actuation of Slender Thin-Wall Anisotropic open Cross-section beams based on Asymptotically-Correct Vlasov Theory”; Proceedings of 17th International Conference on Adaptive Structures and Technologies, Taipei, Taiwan; pp. 205-212.
This paper was awarded the Conference Scholarship Award.
32 Khouli, F.; Afagh, F.F.; Langlois, R.G.; 2006; “Asymptotically-Correct Structural Modelling of Thin-Walled Anisotropic Closed Cross-Section Rotating Slender Beams”; Proceedings of Advances in Engineering Structures, Mechanics and Construction, University of Waterloo, Waterloo, Canada; pp.537-548.
33 Wall, A.S.; Zan, S.J.; Langlois, R.G.; Afagh, F.F.; 2005; “A Numerical Model for Studying Helicopter Blade Sailing in an Unsteady Airwake”; Proceedings of NATO Symposium on Flow- -Induced Unsteady Loads and the Impact on Military Applications Symposium AVT-123/RSY, Budapest, Hungary; pp. 4/1-4/16.
34 Wall, A.S.; Langlois, R.G.; Zan, S.J.; Afagh, F.F.; 2004; “Development of a Planar Model to Investigate the Effect of Ship Motion and Wind on Non-rotating Helicopter Blade Flapping”; Proceedings of the 3rd CCToMM Symposium on Mechanisms, Machines and Mechatronics, CSME Forum 2004, London, ON, Canada; 9 pages.