OPTIMIZATION METHODOLOGY TO TARGET A VIBRATION SOURCE NATURAL FREQUENCY OF ENERGY HARVESTING CANTILEVER
Published In: 9TH INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): SALLAM A. KOURITEM , KHALED T. MOHAMED , AHMED M. NAGIB ELMEKAWY , HASSAN ELGAMAL
Abstract: Targeting the frequency of a vibrating source efficiently is the main aim of this research. Also, using an intelligent optimization methodology to improve the power output per unit volume of the harvester is considered. Two case studies of engine vibration and car suspension energy harvesting were investigated. The two optimization methodologies were the genetic algorithm (GA) and COMSOL optimization module (BOBYQA solver). Then, a multi-physics COMSOL was utilized to simulate the results of the COMSOL optimization module and MATLAB was applied to simulate the results of the GA optimization methodology. The analytical simulation of GA and literature results were used to verify the COMSOL results. The power per unit volume of the first case study using COMSOL (FEM) was 67.25×10-3 mW/mm3 versus 60.5×10-3 mW/mm3 for analytical (GA). While, the power per volume of the second case study, using COMSOL (FEM) was 93.8 ×10-3 mW/mm3, versus 81.5 mW/mm3 for analytical (GA). From results we can
- Publication Date: 21-Jul-2019
- DOI: 10.15224/978-1-63248-173-3-04
- Views: 0
- Downloads: 0
A CURSORY VIEW OF PLASTIC APPLICATIONS IN FOUR CONSUMPTION SECTORS
Published In: 9TH INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): EMMANUEL BAFFOUR-AWUAH , STEPHEN AKINLABI
Abstract: The challenges and negative externalities associated with the use of plastics have come to greater light as a result of the extensive use and applications of the product. Waste management, sanitation, health and environmental problems are all over constituting nuisance, overshadowing the numerous benefits of plastics in variegated types of consumption sectors. This review paper commences with the negative externalities of plastics. It then delves into the benefits, uses and applications of plastics with particular reference to health, automobile, food packaging and building and construction sectors. The paper observes that negative externalities of plastics can be reduced to the minimum through the use of technology. In designing plastic waste-reduction technologies, one of the biorelated technologies that came into sharp focus, apart from bio-based and biodegradable plastics is biofiber-plastic composite technology. As a relatively new area of study, the paper recommends that both ind
- Publication Date: 21-Jul-2019
- DOI: 10.15224/978-1-63248-173-3-05
- Views: 0
- Downloads: 0