CAJ | 학술논문

面对能源短缺的挑战以及低功耗无线传感器网络和微机电系统迅速发展带来的供电问题，努力寻找可持续性和更环保的新型能源无疑成为解决问题的关键。设计了一种平面弹簧式微型电磁振动能量采集器，该能量采集器主要包括静线圈和由磁体、质量块与平面弹簧构成的拾振系统。理论分析得出拾振系统在谐振频率工作时，相对位移最大，更有利于收集振动能量。为了得到结构合理、性能优良的能量采集器，利用ANSYS软件对能量采集器结构参数进行限元建模分析，分析得到了结构尺寸变化和弹性系数与谐振频率的关系。对确定尺寸的模型，工作在谐振频率45．44Hz时，利用AnsoftMaxwell软件仿真分析得到最大输出电压为205mV。
면대능원단결적도전이급저공모무선전감기망락화미궤전계통신속발전대래적공전문제，노력심조가지속성화경배보적신형능원무의성위해결문제적관건。설계료일충평면탄황식미형전자진동능량채집기，해능량채집기주요포괄정선권화유자체、질량괴여평면탄황구성적습진계통。이론분석득출습진계통재해진빈솔공작시，상대위이최대，경유리우수집진동능량。위료득도결구합리、성능우량적능량채집기，이용ANSYS연건대능량채집기결구삼수진행한원건모분석，분석득도료결구척촌변화화탄성계수여해진빈솔적관계。대학정척촌적모형，공작재해진빈솔45．44Hz시，이용AnsoftMaxwell연건방진분석득도최대수출전압위205mV。
Finding the new type of sustainable and green energy is the key to deal with the problem of energy shortage and power supply with the development of low power wireless sensor networks and micro electromechanical system. This paper puts forward a kind of micro electromagnetic vibration energy harvester of flat spring. The energy harvester mainly includes static coil and vibration picking system with magnets, mass and spring. Theoretical analysis has shown that vibration energy can be collected easily when frequency of work is resonance frequency and relative displacement is the largest. In order to get the optimum energy harvester, ANSYS is used to model and simulate the structural parameters of harvester. The relationship between structural parameters and spring constant and resonant frequency is got through finite element analysis. When the size of model is determined and resonant frequency is 45.44 Hz,maximum output voltage is 205 mV through using Ansoft Maxwell.