Effects of Crack Faults on the Dynamics of Piezoelectric Cantilever-Based MEMS Sensor

Shoaib, Muhammad; Hamid, Nor Hisham; Jan, Mohammad Tariq; Ali, Noohul Basheer Zain

doi:10.1109/jsen.2017.2737044

Cited by 8 publications

(2 citation statements)

References 45 publications

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“…To develop and conduct a suitable diagnostics approach, possible failure modes of the studied actuators must be identified. Therefore, a failure mode and effects analysis (FMEA) was performed based on the literature [18][19][20][21][22][23][24][25][26] and lifetime tests published in [17]. In this FMEA failure modes, causes and effects of the focused actuators are evaluated.…”

Section: Failure Mode and Effects Analysismentioning

confidence: 99%

Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions

Aimiyekagbon,

Bender,

Hemsel

et al. 2024

Electronics

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In applications of piezoelectric actuators and sensors, the dependability and particularly the reliability throughout their lifetime are vital to manufacturers and end-users and are enabled through condition-monitoring approaches. Existing approaches often utilize impedance measurements over a range of frequencies or velocity measurements and require additional equipment or sensors, such as a laser Doppler vibrometer. Furthermore, the non-negligible effects of varying operating conditions are often unconsidered. To minimize the need for additional sensors while maintaining the dependability of piezoelectric bending actuators irrespective of varying operating conditions, an online diagnostics approach is proposed. To this end, time- and frequency-domain features are extracted from monitored current signals to reflect hairline crack development in bending actuators. For validation of applicability, the presented analysis method was evaluated on piezoelectric bending actuators subjected to accelerated lifetime tests at varying voltage amplitudes and under external damping conditions. In the presence of a crack and due to a diminished stiffness, the resonance frequency decreases and the root-mean-square amplitude of the current signal simultaneously abruptly drops during the lifetime tests. Furthermore, the piezoelectric crack surfaces clapping is reflected in higher harmonics of the current signal. Thus, time-domain features and harmonics of the current signals are sufficient to diagnose hairline cracks in the actuators.

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Section: Failure Mode and Effects Analysismentioning

confidence: 99%

Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions

Aimiyekagbon,

Bender,

Hemsel

et al. 2024

Electronics

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“…Vibration signals are often measured and analyzed to extract information about systems, equipment, or structures. This information is utilized for applications such as fault detection [1], equipment performance optimization and preventative maintenance [2], human health monitoring [3], structural health monitoring [4,5], as well as vibration energy harvesting [6]. Due to the extremely weak, primarily low frequency and wide vibration frequency range of the generated vibration signals in earthquake exploration, water pipeline leakage, and bridge structure monitoring industries [7][8][9], vibration sensors with a high sensitivity and wide measurement bandwidth have increasingly significant application potential to ensure the accuracy and reliability of risk assessments and safety monitoring.…”

Section: Introductionmentioning

confidence: 99%

Design and Experimental Evaluation of a Dual-Cantilever Piezoelectric Film Sensor with a Broadband Response and High Sensitivity

Xin,

He,

Zhao

2023

Micromachines

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Cantilever-beam-type PVDF (Polyvinylidene Fluoride) piezoelectric film sensors are commonly utilized for vibration signal detection due to their simple structures and ease of processing. Traditional cantilevered PVDF piezoelectric film sensors are susceptible to the influence of the second-order vibration mode and have a low lateral stress distribution at the free end, which limit their measurement bandwidth and sensitivity. This study is on the design of a dual-cantilever PVDF piezoelectric film sensor based on the principle of cantilevered piezoelectric film sensors. The results of the experiments indicate that, compared to a typical single-arm piezoelectric cantilever beam vibration sensor, the developed sensor has a longer second-order natural frequency that ranges from 112 Hz to 453 Hz, while the first-order natural frequency is maintained at around 12 Hz. This leads to a better ratio of the second-order natural frequency to the first-order natural frequency and a wider frequency response range. At the same time, the sensitivity is increased by a factor of 3.48.

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Vibration analysis of multiple-layer microbeams based on the modified couple stress theory: analytical approach

Rahi

2020

Arch Appl Mech

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Effects of Crack Faults on the Dynamics of Piezoelectric Cantilever-Based MEMS Sensor

Cited by 8 publications

References 45 publications

Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions

Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions

Design and Experimental Evaluation of a Dual-Cantilever Piezoelectric Film Sensor with a Broadband Response and High Sensitivity

Vibration analysis of multiple-layer microbeams based on the modified couple stress theory: analytical approach

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