Al-Qadisiyah Journal for Engineering Sciences

Study of 3D-printed honeycomb orientation on vibration energy harvesting

Document Type : Research Paper

Authors

Nicholas T. Yong 1, 2
Choon L. Hoo 3

1 School of Engineering and Physical Sciences, Heriot-Watt University Malaysia, 62200 Putrajaya, Malaysia.

2 ARRK Asia, Block E-10-01, Oasis Ara Damansara, Jalan PJU 1A/7, Ara Damansara, 47301 Petaling Jaya, Malaysia.

3 School of Engineering, Faculty of Engineering and Technology, Sunway University, Malaysia.

https://doi.org/10.30772/qjes.2025.165746.1764
Abstract
With the advances in technology, sustainable renewable energy implementation in many applications is becoming important, such as in wireless sensors. Vibration energy harvesting can convert environmental mechanical vibration into useful energy. Honeycomb core structure has shown promising results in cantilever dynamic vibration. However, there is a limited study on its structural variation. This research focuses on different beam thicknesses and angle orientations of 3D-printed hexagonal core structures to improve vibrational cantilever energy harvesting. The beam thickness was studied at 4 mm, 6 mm, and 8 mm with a re-oriented honeycomb core at 0° and 30°. The test rig was modelled as a mass-spring system. The model was simulated for modal analysis and power generation with piezoelectric. The natural frequencies and vibration amplitudes were compared between simulation and experimentation with a vibrational shaker machine and a data acquisition device. The results showed that the 30° honeycomb core has better dynamical amplitudes and energy harvesting as compared to the conventional 0° honeycomb core beam. The different beam thicknesses affect the beam stiffness and, therefore, vary the vibrational amplitude and generated power. The 30° core with lower thickness was found to have the highest power generation due to the better distribution of stress along the beam.

Keywords

Hexagonal
Fused Deposition Modeling
Cantilever Beam
Thickness
Natural Frequency
Crossmark
Subjects
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Al-Qadisiyah Journal for Engineering Sciences
Volume 19, Issue 2
Summer 2026
Pages 164-169

  • Receive Date 05 May 2025
  • Revise Date 18 February 2026
  • Accept Date 06 June 2026

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