Liangfen Du (杜良芬)

Liangfen Du (杜良芬)

Assistant Professor at Hong Kong Polytechnic Univeristy

Research

Research Projects

  1. Principle Investigator: A novel acoustic metagrating barrier for traffic noise reduction. (Environment and Conservation Fund, HKD 760,592.)
  2. Principle Investigator: Outgoing Visit to University College London. (PAIR International Collaboration Scheme, HKD 21,606.9)
  3. Co-Investigator: Upgrading BEEE laboratory facilities to enable advanced researches through improved Safety, Security and Sustainability. (BEEE Safety Research Fund, HKD 1.5M, HKD 0.3M awarded to Dr. DU.)
  4. Principle Investigator: Traffic noise reduction enabling natural ventilation using ultracompact acoustic metagratings. (PolyU (UGC) Start-up Fund for New Recruits, HKD 1,000,000.)
  5. Main investigator: Meta-surface based broadband ultrasonic deep-subwavelength imaging (MOE AcRF Tier 2, SGD 832,128)
  6. Main investigator: Enhancing aural comfort in Singapore Homes through NUS-CDL Smart Green Home Test-Bedding Studies (NUS – CDL joint grant, SGD 298,000)

Publications (Google Scholar)

  1. Zichao Guo, Liangfen Du, Zirui Yang, Kexin Zeng, Ziping Lei, Zhonggang Wang, Zhendong Li, and Zheng Fan. Switchable Bidirectional Sound Absorption Via Exceptional Point Modulation in Acoustic Metastructures with Interleaved Resonator Coupling. Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2024 : e08951.
  2. Tong Zhou, Liangfen Du. Multi-frequency acoustic wave control using acoustic meta-gratings. The 31th International Congress on Sound and Vibration, 2025 . Incheon, Korea, July 5-11.
  3. Xiangyu Wang, Liangfen Du, Zhenbang Liu, Mingyang Li, Yiwei Weng, Zhixin Liu, Yi Wei Daniel Tay, Zheng Fan, Teck Neng Wong, Ming Jen Tan. 3D cementitious composites printing with pretreated recycled crumb rubber: mechanical and acoustic insulation properties. Virtual and Physical Prototyping, 2024 , 19(1) : e2399787.
  4. Johanna Kay Ann Tan, Liangfen Du, Siu-Kit Lau. 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, 2024 , 155(2) : 1570-1582-4287.
  5. Liangfen Du, Zheng Fan. Anomalous refraction of acoustic waves using double layered acoustic gratings. The 52th Inter-Noise, 2023 . Tokyo, Japan, August 20-23.
  6. Liangfen Du, Abhishek Saini, Zeqing Sun, Jian Chen, Zheng Fan. Experimental validation of acoustic focusing by a double layered acoustic grating. The 29th International Congress on Sound and Vibration, 2023 . Prague, the Czech republic, July 09-13.
  7. Liangfen Du, Abhishek Saini, Zeqing Sun, Jian Chen, Zheng Fan. Acoustic focusing by a double layered acoustic grating. Journal of Sound and Vibration, 2023 , 561 : 117830.
  8. Alexandru Crivoi, Liangfen Du, Zheng Fan. Ventilated acoustic meta-barrier based on layered Helmholtz resonators. Applied Acoustics, 2023 , 205 : 109263.
  9. Liangfen Du, Zheng Fan. Acoustic focusing of an acoustic metasurface based on surface coupling approach. The 28th International Congress on Sound and Vibration, 2022 . Singapore, July 24-28.
  10. Jian Chen, Zeqing Sun, Liangfen Du, Zheng Fan. Enhanced acoustic imaging with evanescent amplification. The 28th International Congress on Sound and Vibration, 2022 . Singapore, July 24-28.
  11. Liangfen Du, Siu-Kit Lau, Siew Eang Lee. Prediction of noise reduction of ventilation window by surface impedance approach. Applied Acoustics, 2021 , 175 : 107851.
  12. Liangfen Du, Siu-Kit Lau, Siew Eang Lee, Martin Konrad Danzer. Experimental study on noise reduction and ventilation performances of sound-proofed ventilation window. Building and Environment, 2020 , 181 : 107105.
  13. Goran Pavić, Liangfen Du. Modelling of a closed acoustical space by the boundary reconstruction approach. Forum Acusticum 2020 (FA 2020), 2020 . December 7-11.
  14. Goran Pavić, Liangfen Du. Experimental identification of surface acoustic impedance. Biennial ISMA conference on Noise and Vibration Engineering (ISMA 2020), 2020 . KU Leuven, Belgium, September 7-9.
  15. Liangfen Du, Goran Pavić, Siu-Kit Lau, Siew Eang Lee. Virtual experimental study on sound prediction in multiple connected spaces by surface coupling approach. The 49th Inter-Noise, 2020 . Soeul, Korea, August 23-26.
  16. Liangfen Du, Siu-Kit Lau, Siew Eang Lee. Experimental study on sound insulation of ventilation partitions. Journal of Acoustics, 2019 , 1 : 1-13.
  17. Liangfen Du, Siu-Kit Lau, Siew Eang Lee. Experimental study on sound transmission loss of plenum windows. The Journal of the Acoustical Society of America, 2019 , 146(6) : EL489-EL495.
  18. Liangfen Du, Siu-Kit Lau, Siew Eang Lee. Sound insulation of ventilation partitions with different Configurations. The 48th Inter-Noise, 2019 . Madrid, Spain, June 16-19.
  19. Liangfen Du, Goran Pavić. Modelling of multiply connected sound spaces by the surface coupling approach. The Journal of the Acoustical Society of America, 2019 , 146(6) : 4273-4287.
  20. Goran Pavić, Liangfen Du. Coupling of sound spaces by plane surface harmonics and its application to sound source characterization. Journal of Sound and Vibration, 2019 , 440 : 1-22.
  21. Liangfen Du, Goran Pavić. Experimental characterization of air-borne sound sources via surface coupling. Applied Acoustics, 2018 , 134 : 97-109.
  22. Goran Pavić, Liangfen Du. Coupling of sound spaces by the surface impedance approach. The 8th Congress of the Alps Adria Acoustics Association, 2018 . Zagreb, Croatia, September 20-21.
  23. Goran Pavić, Liangfen Du. Modelling of multi-connected acoustical spaces by the surface impedance approach. The 45th Inter-Noise, 2016 . Hamburg, Germany, August 21-24.
  24. Liangfen Du, Goran Pavić. Experimental demonstration of sound prediction by source characterization. The 44th Inter-Noise, 2015 . San Francisco, USA, August 9-12.
  25. Liangfen Du, Goran Pavić. Characterisation of sound sources by plane surface harmonics. Proceeding of Noise and Vibration – Emerging technologies (NOVEM2015), 2015 . Dubrovnik, Croatia, April 13-15.
  26. Liangfen Du, Goran Pavić. Acoustical source-receiver interfacing using the patch impedance approach. Conference of French Acoustic, 2014 . Poitiers, France, April 22-25. (Oral presentation in French)