Design and Performance Evaluation of a Bio-Inspired Hybrid Energy Harvester for Sustainable Power Generation in Biomedical Devices

Abstract

This increased application of the biomedical devices that are self-sustaining has stimulated the urgent requirement to have an efficient and miniaturised energy harvesting system. The paper is a design and performance analysis of a bio-inspired hybrid energy harvester that incorporates piezoelectric and triboelectric principles in the sustained power output under biomechanical movement. The system is inspired by the dynamics of natural musculoskeletal system and uses flexible biocompatible materials and micro structured surfaces to make the best use of energy conversion efficiency. Simulations Multiphysics simulations: at the optimization of the material choice, structural geometry and load problems, optimization is carried out with the help of finite element analysis (FEA). The hybrid configuration has been experimentally proven to provide a 45 percent higher output power than the conventional single-mode harvesters. The suggested system is also discussed to be compatible with the low-power biomedical sensors: ECG and glucose monitoring unit, as it could be operated in real-time, and without battery. The paper is a research that integrates biomechanics, materials science, and renewable energy engineering to open the door to sustainable self-powered healthcare technologies.