<p>Vibration energy harvesting (VEH) has become a key technology to deal with the power supply issues in structural health monitoring (SHM) for civil and transportation infrastructure in the long run. It helps in minimizing reliance on wireless sensors which require batteries. This article studies recent progress in VEH systems, prioritizing piezoelectric, electromagnetic, triboelectric and hybrid methods. Also, the goal of this study is to operate within low-frequency vibrations generally 1–82&#xa0;Hz of bridges, railways and structures. This article has shown a microwatts power generation to more significant outputs like 0.66 <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\text{W}\)</EquationSource> <EquationSource Format="MATHML"><math> <mtext>W</mtext> </math></EquationSource> </InlineEquation> for electromagnetic, 6.69 <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(\text{W}\)</EquationSource> <EquationSource Format="MATHML"><math> <mtext>W</mtext> </math></EquationSource> </InlineEquation> for triboelectric and up to 10.9 <InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(\text{W}\)</EquationSource> <EquationSource Format="MATHML"><math> <mtext>W</mtext> </math></EquationSource> </InlineEquation> for a parametric generator in rail tracks, track harvesters and bridges. Advanced nonlinear designs and negative stiffness inertial amplifiers have proved critical, expanding operational bandwidth and achieving up to 99.97% higher power output than conventional harvesters under weak excitations. Field deployments have successfully validated these technologies, powering networks of wireless accelerometers, strain and displacement sensors for over a year continuously. The reviewed works confirm the viability of VEH to enable fully autonomous, self-powered and intelligent SHM systems, with some harvesters also functioning as self-sensing units for real-time condition assessment.</p>

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A review of vibration energy harvesting applications, performance factors and deployment challenges

  • Abdullah Al Hasan,
  • Md. Abdullah,
  • Mahmoud E. Khater

摘要

Vibration energy harvesting (VEH) has become a key technology to deal with the power supply issues in structural health monitoring (SHM) for civil and transportation infrastructure in the long run. It helps in minimizing reliance on wireless sensors which require batteries. This article studies recent progress in VEH systems, prioritizing piezoelectric, electromagnetic, triboelectric and hybrid methods. Also, the goal of this study is to operate within low-frequency vibrations generally 1–82 Hz of bridges, railways and structures. This article has shown a microwatts power generation to more significant outputs like 0.66 \(\text{W}\) W for electromagnetic, 6.69 \(\text{W}\) W for triboelectric and up to 10.9 \(\text{W}\) W for a parametric generator in rail tracks, track harvesters and bridges. Advanced nonlinear designs and negative stiffness inertial amplifiers have proved critical, expanding operational bandwidth and achieving up to 99.97% higher power output than conventional harvesters under weak excitations. Field deployments have successfully validated these technologies, powering networks of wireless accelerometers, strain and displacement sensors for over a year continuously. The reviewed works confirm the viability of VEH to enable fully autonomous, self-powered and intelligent SHM systems, with some harvesters also functioning as self-sensing units for real-time condition assessment.