光学精密工程
光學精密工程
광학정밀공정
OPTICS AND PRECISION ENGINEERING
2009年
6期
1262-1266
,共5页
压电能量采集器%静电能量采集器%复合式能量采集器%微机电系统
壓電能量採集器%靜電能量採集器%複閤式能量採集器%微機電繫統
압전능량채집기%정전능량채집기%복합식능량채집기%미궤전계통
piezoelectric power generator%capacitive power generator%hybrid micro power generator%MEMS
介绍了一种结合了压电式能量采集与静电式能量采集原理的复合式振动能量采集器.其结构通过有限元分析软件的优化设计,得到了期望的低频共振频率.为了预测这个复合式振动能量采集器的性能,建立了解析模型,在此基础上使用MATLAB/SIMULINK进行了数值模拟.模拟结果显示,在某些特定的频率范围内,这种复合式振动能量采集器能够提供比其他两种能量采集器更高的输出功率.对于固有频率为282 Hz的器件结构,仿真发现复合式设计的输出功率可达4.85 μW,两倍于电容式设计的输出功率2.11 μW.
介紹瞭一種結閤瞭壓電式能量採集與靜電式能量採集原理的複閤式振動能量採集器.其結構通過有限元分析軟件的優化設計,得到瞭期望的低頻共振頻率.為瞭預測這箇複閤式振動能量採集器的性能,建立瞭解析模型,在此基礎上使用MATLAB/SIMULINK進行瞭數值模擬.模擬結果顯示,在某些特定的頻率範圍內,這種複閤式振動能量採集器能夠提供比其他兩種能量採集器更高的輸齣功率.對于固有頻率為282 Hz的器件結構,倣真髮現複閤式設計的輸齣功率可達4.85 μW,兩倍于電容式設計的輸齣功率2.11 μW.
개소료일충결합료압전식능량채집여정전식능량채집원리적복합식진동능량채집기.기결구통과유한원분석연건적우화설계,득도료기망적저빈공진빈솔.위료예측저개복합식진동능량채집기적성능,건립료해석모형,재차기출상사용MATLAB/SIMULINK진행료수치모의.모의결과현시,재모사특정적빈솔범위내,저충복합식진동능량채집기능구제공비기타량충능량채집기경고적수출공솔.대우고유빈솔위282 Hz적기건결구,방진발현복합식설계적수출공솔가체4.85 μW,량배우전용식설계적수출공솔2.11 μW.
A hybrid vibration-powered microgenerator has been presented by combining the structures of piezoelectric generator and electrostatic generator,and the structure of the microgenerator is optimized by a Finite Element Method(FEM)to obtain the desired low resonant frequency. Then,an analytic model is established to predict the behavior of the hybrid power-generator and a MATLAB/SIMULINK is utilized for the numerical simulation. The simulated results reveal that the hybrid power-generator has a higher output power than those of two energy harvesting mechanisms at a special resonant frequency. For a resonant frequency of 282 Hz, the simulation result shows the output power from the hybrid mechanism is 4.85 μm,which doubles 2.11 μW from the original capacitive mechanism.
