Yinhang Ma
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Yinhang Ma has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
- Fujun Yang
School of Civil Engineering, Southeast University, Nanjing, China
1 shared publication - Hanyang Jiang
Department of Engineering Mechanics, Southeast University, Nanjing 211189, China
1 shared publication - Meiling Dai
School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China
1 shared publication - Nan Tao
Department of Engineering Mechanics, Southeast University, Nanjing 211189, China
1 shared publication
Latest Publications
- Open Access
- 19 July 2018
- Published by MDPI AG in Proceedings
- Vol. 2 (8) , 539
Investigation on Non-Linear Vibration Response of Cantilevered Thin Plates with Crack Using Electronic Speckle Pattern Interferometry
The time-averaged electronic speckle pattern interferometry (ESPI) is employed to measure the frequencies and mode shapes of thin, cantilevered plates with root-slit. The first 12 order linear resonance frequency and mode shape of an intact cantilevered plate is determined by using FEM calculation. The dynamic response of the intact specimen forced by a PZT actuator is measured and its super-harmonic resonance of forced response is investigated experimentally. The results show that the principal mode shape of super-harmonic vibration is similar to its natural modal. In contrast to linear forcing vibration, the threshold of force for super-harmonic resonance is much higher than that of the former. In addition, linear free response of four cantilevered root-slit plates with variation length of slit are analyzed by applying the FEM calculation, and their responses of forcing vibration were measured by using the ESPI method. The validity and accuracy of the numerical prediction are confirmed through experimental studies. The present work shows that the ESPI technique can provide whole-field and real-time measurement for vibration analysis and can also be employed for validation of the FEM calculation.
- 19 July 2018
- Published by MDPI AG in Proceedings
- Vol. 2 (8) , 539
Open AccessInvestigation on Non-Linear Vibration Response of Cantilevered Thin Plates with Crack Using Electronic Speckle Pattern Interferometry
The time-averaged electronic speckle pattern interferometry (ESPI) is employed to measure the frequencies and mode shapes of thin, cantilevered plates with root-slit. The first 12 order linear resonance frequency and mode shape of an intact cantilevered plate is determined by using FEM calculation. The dynamic response of the intact specimen forced by a PZT actuator is measured and its super-harmonic resonance of forced response is investigated experimentally. The results show that the principal mode shape of super-harmonic vibration is similar to its natural modal. In contrast to linear forcing vibration, the threshold of force for super-harmonic resonance is much higher than that of the former. In addition, linear free response of four cantilevered root-slit plates with variation length of slit are analyzed by applying the FEM calculation, and their responses of forcing vibration were measured by using the ESPI method. The validity and accuracy of the numerical prediction are confirmed through experimental studies. The present work shows that the ESPI technique can provide whole-field and real-time measurement for vibration analysis and can also be employed for validation of the FEM calculation.