Quantum Physics


Spring and Gravity Laws of Vibration Energy Harvesting

Authors: Emmanuel F.C. Chimamkpam

Usual theory has it that large power is only attained by using large mass in harvesting of vibration energy. But can a heavy harvester be displaced at all or meaningfully under small vibration sources? Large mass means large materials with high costs, less ease of transportation and high difficulty of integration into portable technologies. Herein, a theory is proposed and validated for power as inversely proportional to mass but directly proportional to the stiffness of spring, meaning that large mass is not always needed. A further concept is established that more local gravity gives higher power but on condition that mass, spring stiffness and displacement amplitude of vibration source remain unchanged. Nonlinear multi-phase power spectrum arises when displacement amplitude of a vibration source is constant, whereas linear single-phase spectrum is the result when this amplitude fluctuates in non-zero gravity. All theoretical findings concur with results of real-life applications, giving new design pathways for high performance harvesters.

Comments: 15 pages of texts/equations and 11 pages of figures. DOI:10.5281/zenodo.3530639

Download: PDF

Submission history

[v1] 2019-11-15 06:15:04

Unique-IP document downloads: 10 times

Vixra.org is a pre-print repository rather than a journal. Articles hosted may not yet have been verified by peer-review and should be treated as preliminary. In particular, anything that appears to include financial or legal advice or proposed medical treatments should be treated with due caution. Vixra.org will not be responsible for any consequences of actions that result from any form of use of any documents on this website.

Add your own feedback and questions here:
You are equally welcome to be positive or negative about any paper but please be polite. If you are being critical you must mention at least one specific error, otherwise your comment will be deleted as unhelpful.

comments powered by Disqus