Related Publications

• Bae, J. S., and Jung, S. N., "Closed-Form Analysis of Thin-Walled Composite Beams Using Mixed Variational Approach," Aerospace, No. 10, Vol. 9, Oct. 2022.

• Jung, S. N., Kim, C. J., Ko, J. W. and Kim, C. W., "Theory of Thin-walled, Pretwisted Composite Beams with Elastic Couplings," Advanced Composite Materials, Vol. 18, No. 2, 2009, pp. 105-119.

• Jung, S. N., and Park, I. J., "Theory of Thin-walled Composite Beams with Single and Double-cell Sections," Composites Part B: Engineering, Vol. 38, Mar. 2007, pp. 182-192.

• Jung, S. N., and Park, I. J., "A Simple Mixed-Based Approach for Thin-walled Composite Blades with Two-cell Sections," Journal of Mechanical Science & Technology, Vol. 19, No. 11, 2005, pp. 2016-2024.

• Jung, S. N., and Park, I. J., "Structural Behavior of Thin and Thick-walled Composite Blades with Multi-cell Sections," AIAA Journal, Vol. 43, No. 3, Mar. 2005, pp. 572-581.

• S. N. Jung, I. J. Park, E. S. Shin, and I. Chopra, "A Study on Assessment of Composite Couplings for Helicopter Rotor Blades with Multi-cell Sections," International Journal of Aeronautical and Space Sciences, Vol. 4, No. 1, May 2003, pp. 9-18.

• Jung, S. N. and Lee, J. Y., "Closed-Form Analysis of Thin-Walled Composite I-Beams Considering Non-Classical Effects," Composite Structures, Vol. 60, No. 1, Apr. 2003, pp. 9-17.

• Jung, S. N., Nagaraj, V. T., and Chopra, I., "Refined Structural Model for Thin- and Thick-Walled Composite Rotor Blades," AIAA Journal, Vol. 40, No. 1, Jan. 2002, pp. 105-116.

• Jung, S. N., Nagaraj, V. T., and Chopra, I., "Refined Structural Dynamics Model for Composite Rotor Blades," AIAA Journal, Vol. 39, No.2, Feb. 2001, pp. 339-348.

• Jung, S. N., Nagaraj, V. T., and Chopra, I, "Assessment of Composite Rotor Blade Modeling Techniques," Journal of the American Helicopter Society, Vol. 44, No. 3, July 1999, pp. 188-205.

◎ Finite Element-based 2D Blade Cross-sectional Analysis Program: KSEC2D

Related Publications:

• Dhadwal, M., and Jung, S. N., "Free-edge stress evaluation of laminated composites using a novel multifield variational beam formulation," Composite Structures, Vol. 233, Article 111705, Feb. 2020.

• Dhadwal, M., and Jung, S. N., "Generalized Multifield Variational Formulation with Interlaminar Stress Continuity for Multilayered Anisotropic Beams," Composites Part B: Engineering, Vol. 168, July 2019, pp. 476-487.

• Dhadwal, M., and Jung, S. N., "Multifield Variational Sectional Analysis for Accurate Stress Computation of Multilayered Composite Beams," AIAA Journal, Vol. 57, No. 4, Apr. 2019, pp. 1702-1714.

• Dhadwal, M., and Jung, S. N., "Effect of Three-dimensional Warping on Stiffness Constants of Closed Section Composite Beams," International Journal of Aeronautical and Space Sciences, Vol. 18, No. 3, Sept. 2017, pp.467-473.

• Dhadwal, M., and Jung, S. N., "On Boundary Effects Due To Nonuniform Shear and Torsional Warping for Open Section Anisotropic Beams," Composite Structures, Vol. 161, Feb. 2017, pp. 350-361.

• Dhadwal, M., and Jung, S. N., "Refined Sectional Analysis with Shear Center Prediction for Nonhomogeneous Anisotropic Beams with Nonuniform Warping," Meccanica, Vol. 51, No. 8, Aug. 2016, pp. 1839-1867

• Park, I. J. and Jung, S. N., "General Purpose Cross-section Analysis Program for Composite Rotor Blades," International Journal of Aeronautical and Space Sciences, Vol. 10, No. 2, Nov. 2009, pp. 77-85.

◎ Validation of HART II Rotor Test Data

Related Publications:

• You, Y. H., Sa, J. H., Park, J. S., Park, S. H., and Jung, S. N., "Modern Computational Fluid Dynamics/Structural Dynamics Simulation for a Helicopter in Descent," Journal of Aircraft, Vol. 50, No. 5, Sept. 2013, pp. 1450-1464.

• Park, J. S., Sa, J. H., Park, S. H., You, Y. H., and Jung, S. N., "Loosely-coupled Multibody Dynamics-CFD Analysis for a Rotor in Descending Flight," Aerospace Science and Technology, Vol. 29, No. 1, Aug. 2013, pp. 262-276.

• Jung, S. N., Sa, J. H., You, Y. H., Park, J. S., and Park, S. H., "Loose Fluid-Structure Coupled Approach for a Rotor in Descent Incorporating Fuselage Effects," Journal of Aircraft, Vol. 50, No. 4, July 2013, pp. 1016-1026

• Smith, M. J., Lim, J. W., van der Wall, B. G., Baeder, J. D., Biedron, R. T., Boyd, Jr, D. D., Jayaraman, B., Jung, S. N., and Min, B. Y., "The HART II International Workshop: An Assessment of the State of the Art in CFD/CSD Prediction," CEAS Aeronautical Journal, Vol. 4, No. 4, Dec. 2013, pp. 345-372

• van der Wall, B. G., Lim, J. W., Smith, M. J., Jung, S. N., Bailly, J., Baeder, J. D., and Boyd, Jr, D. D., "The HART II International Workshop: An Assessment of the State-of-the-art in Comprehensive Code Prediction," CEAS Aeronautical Journal, Vol. 4, No. 3, July 2013, pp. 223-252

• Jung, S. N., You, Y. H., Kim, J W., Sa, J. H., Park, J. S., and Park, S. H., "Correlation of Aeroelastic Responses and Structural Loads for a Rotor in Descending Flight," Journal of Aircraft, Vol. 49, No. 2, Mar.-Apr. 2012.

• Park, J. S., and Jung, S. N., "Comprehensive Multibody Dynamics Analysis for Rotor Aeromechanics Predictions in Descending Flight," Aeronautical Journal, Vol. 116, No. 1176, Mar. 2012, pp. 229-249

• Park, J. S., Jung, S. N., You, Y. H., Park, S. H., and Yu, Y. H., "Validation of Comprehensive Dynamics Analysis Results for a Rotor in Descending Flight," Aircraft Engineering and Aerospace Technology, Vol. 83, No. 2, Apr. 2011, pp. 75-84.

• Park, J. S., Jung, S. N., Park, S. H., and Yu, Y. H., "Correlation Study of a Rotor in Descending Flight using DYMORE with a Freewake Model," Journal of Mechanical Science and Technology, Vol. 24, No. 8, 2010, pp. 1583-1594

• You, Y. H., Park, J. S., Jung, S. N., and Kim, D. H., "Comprehensive Code Validation on Airloads and Aeroelastic Responses of the HART II Rotor," International Journal of Aeronautical and Space Sciences, Vol. 11, No. 2, June 2010, pp. 145-153.

◎ Validation of HART I Rotor Test Data

Related Publications:

• You, Y. H., Na, D. H., and Jung, S. N., "Improved Rotor Aeromechanics Predictions using a Fluid-Structure Interaction Approach," Aerospace Science and Technology, Vol. 73, No. 2, Feb. 2018, pp. 118-128.

• You, Y. H., Na, D. H., and Jung, S. N., "Data Transfer Schemes in Rotorcraft Fluid-Structure Interaction Predictions," International Journal of Aerospace Engineering, Vol. 2018, Article ID 3426237, Mar. 2018.

• Na, D. H., You, Y. H., and Jung, S. N., "Comprehensive Aeromechanics Predictions on Air and Structural Loads of HART I Rotor," International Journal of Aeronautical and Space Sciences, Vol. 18, No. 1, Mar. 2017, pp. 165-173.

◎ Measurement of Blade Properties: HART I, HART II, STAR Blades

Related Publications:

• Jung, S. N., You, Y. H., Lau, B., Johnson, W., and Lim, J. W., "Evaluation of Rotor Structural and Aerodynamic Loads Using Measured Blade Properties," Journal of the American Helicopter Society, Vol. 58, No. 4, Oct. 2013, pp. 1-12.

• Jung, S. N., and Lau, B., “Determination of HART I Rotor Blade Structural Properties by Laboratory Testing," NASA CR-2012-216039, Aug. 2012.

• Jung, S. N., You, Y. H., Dhadwal, M., Riemenschneider, J., and Hagerty, B., "Study on Blade Property Measurement and Its Influence on Air/Structural Loads," AIAA Journal, Vol. 53, No. 11, 2015

• Jung, S. N., M. Dhadwal, Kim, Y. W., Kim, J. H., and Riemenschneider, J., "Cross-section Constants of Composite Blades Using Computed Tomography Technique and Finite Element Analysis," Composite Structures, Vol. 129, Oct. 2015, pp. 132-142

• Ahn, J. H., Hwang, H. J., Jang, S., Jung, S. N., Kalow, S., and Keimer, R., "X-ray Computed Tomography Method for Macroscopic Structural Property Evaluation of Active Twist Composite Blades," Aerospace, Vol. 8, Nov. 2021.

◎ Development of RTB (Rotor Track & Balance) Software

Related Publications:

• Lee, S. H., Kim, C. J., Jung, S. N., You, Y. H., and Kim, O. C., “Study on Non-linear Modeling and Genetic Algorithm Application for Rotor Track and Balance Parameter Optimization,” Journal of the Korean Society for Aeronautical and Space Sciences, Vol. 44, No. 11, Nov. 2016, pp. 989-996

◎ Optimum Structural Design of Composite Rotor Blades

Related Publications:

• Manoj, K. D., Jung, S. N., and Kim, C. J., "Advanced Particle Swarm Assisted Genetic Algorithm for Constrained Optimization Problems," Computational Optimization and Applications, Vol. 53, No. 3, July 2014, pp. 781-806

• You, Y. H., Jung, S. N., and Kim, C. J., “Optimal Deployment Schedule of an Active Twist Rotor for Performance Enhancement and Vibration Reduction in High-speed Flights,” Chinese Journal of Aeronautics, Vol. 30, No. 4, Aug. 2017, pp. 1427-1440.

• Manoj, K. D., Lim, K. B., Jung, S. N., and Kim, T. J., "Particle Swarm Assisted Genetic Algorithm for Optimal Design of Flexbeam Sections," International Journal of Aeronautical and Space Sciences, Vol. 14, No. 4, Dec. 2013, pp. 341-349.

◎ Development of Rotorcraft Aeromechanics Analysis System