Many vibrating energy harvesters convert elastic or strain energy to electricity, while the energy of the structure is mainly distributed between potential and kinetic energies. The focus of the present work is on maximizing energy harvesting of the structure through the optimal energy absorption of its mechanical energy. The collision mechanism is used for this purpose. Primary piezoelectric harvester on the main structure and secondary piezoelectric harvester utilizing impact force in the form of harvesting beam used for this purpose. The results show that there is a significant increase in energy absorption and bandwidth. The effect of different geometrical and mechanical parameters on the system's efficiency is investigated. Experimental validation is presented to evaluate the theoretically obtained results. The presented mechanism gives up to 80 times improvement in the harvested power.

许多振动能量收集器将弹性或应变能转换为电能，而结构的能量主要分布在势能和动能之间。当前工作的重点是通过机械能的最佳能量吸收来最大化结构的能量收集。碰撞机制用于此目的。主体上的初级压电收割机和次级压电收割机利用了用于此目的的收集梁形式的冲击力。结果表明，能量吸收和带宽显着增加。研究了不同几何和机械参数对系统效率的影响。提出了实验验证，以评估理论上获得的结果。