Feasibility study of performing experimental modal analysis with oblique impact testing using various oblique impact directions

Autor: Shin Yee Khoo, Yee Cheng Lian, Zhi Chao Ong, Zubaidah Ismail, Siamak Noroozi

Publikováno v: Alexandria Engineering Journal, Vol 59, Iss 1, Pp 457-473 (2020)

Oblique impact excitation has been introduced in Experimental Modal Analysis (EMA), with the great advantage of reducing the conventional EMA’s testing time by a factor of three. One major constraint of this technique is the investigation of the ef

Externí odkaz: https://doaj.org/article/dd39a5e61aee434eab73e8498d87adc9

Enhancement of Energy Harvesting Performance by a Coupled Bluff Splitter Body and PVEH Plate through Vortex Induced Vibration near Resonance

Autor: Wei Ken Chin, Zhi Chao Ong, Keen Kuan Kong, Shin Yee Khoo, Yu-Hsi Huang, Wen Tong Chong

Publikováno v: Applied Sciences, Vol 7, Iss 9, p 921 (2017)

Inspired by vortex induced vibration energy harvesting development as a new source of renewable energy, a T-shaped design vibration energy harvester is introduced with the aim of enhancing its performance through vortex induced vibration at near reso

Externí odkaz: https://doaj.org/article/97ddd91ec2914cf6988724fef7538af9

Stress enhancement of a trapezoidal bridge piezoelectric transducer in high force environment

Autor: Zhi Chao Ong, Ming Foong Soong, Shin Yee Khoo, Su Xian Long

Publikováno v: Ferroelectrics. 573:23-41

The substrates in Trapezoidal Bridge piezoelectric transducer will shield most of the stress, causing unutilised low stress regions of PZT and lower power output. Thus, this paper presents an impro...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6117b8cb77b6faf230a4f172f2aab3cf
https://doi.org/10.1080/00150193.2021.1890461

An inconsistent phase selection assessment for harmonic peaks elimination in operational modal testing

Autor: Zhi Chao Ong, Zubaidah Ismail, Hong Cheet Lim, Shin Yee Khoo, Anders Brandt

Publikováno v: Ong, Z C, Lim, H C, Brandt, A, Ismail, Z & Khoo, S Y 2019, ' An inconsistent phase selection assessment for harmonic peaks elimination in operational modal testing ', Archive of Applied Mechanics, vol. 89, no. 12, pp. 2415-2430 . https://doi.org/10.1007/s00419-019-01584-3

An improvement on modal analysis technique is always exacerbated by the limitation on both operational modal analysis (OMA) and experimental modal analysis (EMA). In a recent year, a novel method was introduced named impact-synchronous modal analysis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4bacd69ead48f770898620a80397432
https://doi.org/10.1007/s00419-019-01584-3

A review of operational modal analysis techniques for in-service modal identification

Autor: Fahad Bin Zahid, Shin Yee Khoo, Zhi Chao Ong

Publikováno v: Journal of the Brazilian Society of Mechanical Sciences and Engineering. 42

Vibrations are the root cause of many mechanical and civil structure failures. Dynamic characteristics of a structure must be extracted to better understand structural vibrational problems. Modal analysis is used to determine the dynamic characterist

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7592a8b168b68ae446c4b9cc87425067
https://doi.org/10.1007/s40430-020-02470-8