Conference Publication Details
Mandatory Fields
Constantinou, P;Roy, S
15TH INTERNATIONAL CONFERENCE ON MICRO AND NANOTECHNOLOGY FOR POWER GENERATION AND ENERGY CONVERSION APPLICATIONS (POWERMEMS 2015)
A non-linear 3D printed electromagnetic vibration energy harvester
2015
January
Validated
1
()
Optional Fields
This paper describes a novel electromagnetic energy harvester that exploits the low flexural modulus of ABS and comprises of a nonlinear mechanism to enhance the generated power and bandwidth. The device is printed using desktop additive manufacturing techniques (3D printing) that use thermoplastics. It has a 'V' spring topology and exhibits a softening spring non-linearity introduced through the magnetic arrangement, which introduces a monostable potential well. A model is presented and measurements correspond favourably. The produced prototype generates a peak power of approximately 2.5mW at a frame acceleration of 1g and has a power bandwidth of approximately 1.2 -> 1.5Hz and 3.5 -> 3.9Hz during up and down sweeps respectively. The device has a power density of 0.4mW/cm(3) at a frame acceleration of 1g and a density of 0.04mW/cm(3) from a generated power of 25 mu W at 0.1g.
10.1088/1742-6596/660/1/012092
Grant Details