Design and Development of Vibration based Energy Harvesting for Structural Health Monitoring (WSNs) of Bridges

Energy harvesting is being in the use since the development of the technology of Low powered devices used for various purposes like Structural health monitoring of bridges, various temperature or humidity monitoring devices, Traffic control etc. It is the alternative of battery usage because of cert

Project Title

Design and Development of Vibration based Energy Harvesting for Structural Health Monitoring (WSNs) of Bridges

Project Area of Specialization

Mechatronics Engineering

Project Summary

Energy harvesting is being in the use since the development of the technology of Low powered devices used for various purposes like Structural health monitoring of bridges, various temperature or humidity monitoring devices, Traffic control etc. It is the alternative of battery usage because of certain drawbacks including battery could burst at high temperatures or loads; also it requires a lot of maintenance which will be very costly in terms of work force required. Likewise complex wiring system is not in the option because of the same costly nature, then energy from ambient sources like light, thermal, acoustics, vibrations, wind etc would be of great importance due to their abundance. This work specifically target power required for health monitoring of bridges. In case of wireless sensor nodes (WSNs) used for health monitoring of bridges, only vibrations has the tendency to be utilized as ambient power source. Various sort of vibration based energy harvesters have been reported so far in the literature, including Piezoelectric EH’s, Electromagnetic EH’s, and Electrostatic EH’s. Electrostatic have their own limitations, which will be discussed, so a hybrid sort of Energy harvester is being developed including both electromagnetic and piezoelectric effects. Aero elastic effects will also be introduced using airfoil flutter phenomena to compensate for the situation when there is no traffic and the sole ambient source is wind especially during night. Using this sort of hybrid device main goal is to develop that much energy which is enough for the smooth running of WSNs utilized for Structural health monitoring of bridges.

Project Objectives

• Review of energy harvesting and evaluate the effectiveness to provide innovative device.
• Use design modeling to develop an understanding of the harvesters.
• Finding harmonic response through Ansys.
• Analytical and Numerical comparison.
• Constructing experimental setup.
• Development of different prototype of vibration based harvesters and validates it with other harvesters.
• Characterization of the Harvesters in an optimized way.
• Producing Voltage up to 210mV and Power 360?W for operating micro controller devices(integrated ,remote and embedded sensing systems).

Project Implementation Method

First of all preliminary literature review has done to propose novel design of Harvesters, than CAD model is prepared. After that numerical modeling is done through Ansys software, after that analytical modeling has been done. Now we have to prepare these analysis ready devices. After that experimental setup for these devices has been developed, which will later be utilized for the testing and characterization between different developed harvesters. And finally results will be gathered.

Benefits of the Project

•The successful implementation of this research will be of great help in the field of power harvesting.

•As for the economic significance is concerned, the tools and devices use in this research is optimum cost and easily available.

Ease of construction, availability of testing facilities will be helpful in the significance and practical implication of this research

Technical Details of Final Deliverable

The developed BEHs are cantilever-type and are comprised of a wound coil, permanent magnet, an airfoil, cantilever beam, and a support. Harvesters are characterized in-lab under different vibration levels and are subjected to variable speed air surges.

Final Deliverable of the Project

Hardware System

Core Industry

Energy

Other Industries

Core Technology

Others

Other Technologies

Sustainable Development Goals

Affordable and Clean Energy, Sustainable Cities and Communities, Responsible Consumption and Production, Climate Action

Required Resources

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