Liangfen Du (杜良芬)

Liangfen Du (杜良芬)

Assistant Professor at Hong Kong Polytechnic Univeristy

Research

Research Projects

  1. Principal Investigator: Ultracompact programmable acoustic grating for broadband noise insulation with airflow passage. (Hong Kong Research Grants Council / Early Career Scheme)
  2. Co-Investigator: Pilot investigation of lung inflammatory and remodelling responses to traffic-related PM₂.₅ and noise co-exposure in mice. (PolyU Start-up Fund for RAPs under the Strategic Hiring Scheme)
  3. Principal Investigator: A novel acoustic metagrating barrier for traffic noise reduction. (Environment and Conservation Fund)
  4. Principal Investigator: Outgoing Visit to University College London. (PAIR International Collaboration Scheme)
  5. Co-Investigator: Upgrading BEEE laboratory facilities to enable advanced researches through improved Safety, Security and Sustainability. (BEEE Safety Research Fund)
  6. Principal Investigator: Traffic noise reduction enabling natural ventilation using ultracompact acoustic metagratings. (PolyU (UGC) Start-up Fund for New Recruits)
  7. Main investigator: Meta-surface based broadband ultrasonic deep-subwavelength imaging (MOE AcRF Tier 2)
  8. Main investigator: Enhancing aural comfort in Singapore Homes through NUS-CDL Smart Green Home Test-Bedding Studies (NUS – CDL joint grant)

Publications (Google Scholar)

  1. Ma, K., Du, J., Lian, H., Jia, X., Liu, Y., Du, L. (2026). Modeling and nonlinear dynamic behavior analysis of a rotational self-powered dynamic absorber for crankshaft torsional vibration. Applied Mathematical Modelling, 162, 117180.
  2. Du, L., Tai, J., Yang, X., Fan, Z. (2026). Ultracompact programmable acoustic grating for broadband and wide-angle focusing. Journal of Sound and Vibration, 642, 119968.
  3. Jia, H.-T., Tang, X.-L., Ma, T.-X., Du, L., Wang, Y.-S. (2026). Majorana-like bound states in phononic crystal topological cavities for energy harvesting of flexural waves. Smart Materials and Structures, 35(5), 055012.
  4. Guo, Z., Du, L., Yang, Z., Zeng, K., Lei, Z., Wang, Z., Li, Z., Fan, Z. (2025). Switchable bidirectional sound absorption via exceptional point modulation in acoustic metastructures with interleaved resonator coupling. Advanced Science, 12(44), e08951.
  5. Zhou, T., Du, L. (2025). Multi-frequency acoustic wave control using acoustic meta-gratings. The 31th International Congress on Sound and Vibration. Incheon, Korea, July 5-11.
  6. Wang, X., Du, L., Liu, Z., Li, M., Weng, Y., Liu, Z., Tay, Y. W. D., Fan, Z., Wong, T. N., Tan, M. J. (2024). 3D cementitious composites printing with pretreated recycled crumb rubber: mechanical and acoustic insulation properties. Virtual and Physical Prototyping, 19(1), e2399787.
  7. Tan, J. K. A., Du, L., Lau, S.-K. (2024). Optimization of single-channel active noise control performance in a plenum window using the surface impedance approach. The Journal of the Acoustical Society of America, 155(2), 1570-1582.
  8. Du, L., Fan, Z. (2023). Anomalous refraction of acoustic waves using double layered acoustic gratings. The 52th Inter-Noise. Tokyo, Japan, August 20-23.
  9. Du, L., Saini, A., Sun, Z., Chen, J., Fan, Z. (2023). Experimental validation of acoustic focusing by a double layered acoustic grating. The 29th International Congress on Sound and Vibration. Prague, the Czech republic, July 09-13.
  10. Du, L., Saini, A., Sun, Z., Chen, J., Fan, Z. (2023). Acoustic focusing by a double layered acoustic grating. Journal of Sound and Vibration, 561, 117830.
  11. Crivoi, A., Du, L., Fan, Z. (2023). Ventilated acoustic meta-barrier based on layered Helmholtz resonators. Applied Acoustics, 205, 109263.
  12. Du, L., Fan, Z. (2022). Acoustic focusing of an acoustic metasurface based on surface coupling approach. The 28th International Congress on Sound and Vibration. Singapore, July 24-28.
  13. Chen, J., Sun, Z., Du, L., Fan, Z. (2022). Enhanced acoustic imaging with evanescent amplification. The 28th International Congress on Sound and Vibration. Singapore, July 24-28.
  14. Du, L., Lau, S.-K., Lee, S. E. (2021). Prediction of noise reduction of ventilation window by surface impedance approach. Applied Acoustics, 175, 107851.
  15. Du, L., Lau, S.-K., Lee, S. E., Danzer, M. K. (2020). Experimental study on noise reduction and ventilation performances of sound-proofed ventilation window. Building and Environment, 181, 107105.
  16. Pavić, G., Du, L. (2020). Modelling of a closed acoustical space by the boundary reconstruction approach. Forum Acusticum 2020 (FA 2020). December 7-11.
  17. Pavić, G., Du, L. (2020). Experimental identification of surface acoustic impedance. Biennial ISMA conference on Noise and Vibration Engineering (ISMA 2020). KU Leuven, Belgium, September 7-9.
  18. Du, L., Pavić, G., Lau, S.-K., Lee, S. E. (2020). Virtual experimental study on sound prediction in multiple connected spaces by surface coupling approach. The 49th Inter-Noise. Soeul, Korea, August 23-26.
  19. Du, L., Lau, S.-K., Lee, S. E. (2019). Experimental study on sound insulation of ventilation partitions. Journal of Acoustics, 1, 1-13.
  20. Du, L., Lau, S.-K., Lee, S. E. (2019). Experimental study on sound transmission loss of plenum windows. The Journal of the Acoustical Society of America, 146(6), EL489-EL495.
  21. Du, L., Lau, S.-K., Lee, S. E. (2019). Sound insulation of ventilation partitions with different Configurations. The 48th Inter-Noise. Madrid, Spain, June 16-19.
  22. Du, L., Pavić, G. (2019). Modelling of multiply connected sound spaces by the surface coupling approach. The Journal of the Acoustical Society of America, 146(6), 4273-4287.
  23. Pavić, G., Du, L. (2019). Coupling of sound spaces by plane surface harmonics and its application to sound source characterization. Journal of Sound and Vibration, 440, 1-22.
  24. Du, L., Pavić, G. (2018). Experimental characterization of air-borne sound sources via surface coupling. Applied Acoustics, 134, 97-109.
  25. Pavić, G., Du, L. (2018). Coupling of sound spaces by the surface impedance approach. The 8th Congress of the Alps Adria Acoustics Association. Zagreb, Croatia, September 20-21.
  26. Pavić, G., Du, L. (2016). Modelling of multi-connected acoustical spaces by the surface impedance approach. The 45th Inter-Noise. Hamburg, Germany, August 21-24.
  27. Du, L., Pavić, G. (2015). Experimental demonstration of sound prediction by source characterization. The 44th Inter-Noise. San Francisco, USA, August 9-12.
  28. Du, L., Pavić, G. (2015). Characterisation of sound sources by plane surface harmonics. Proceeding of Noise and Vibration – Emerging technologies (NOVEM2015). Dubrovnik, Croatia, April 13-15.
  29. Du, L., Pavić, G. (2014). Acoustical source-receiver interfacing using the patch impedance approach. Conference of French Acoustic. Poitiers, France, April 22-25. (Oral presentation in French)