【摘要】：針對壓電換能器發(fā)電路面存在的技術缺陷,優(yōu)選適用于道路發(fā)電的壓電元件并進行結構改進處理,設計出4種保護措施方案,提出了綜合性能評價指標并確定最優(yōu)保護結構,測試評價了典型面層結構組合小尺寸試件電學輸出效果,開發(fā)制作出能量采集實體電路并探究了其實際應用工作狀態(tài)。結果表明:直徑35mm、厚度0.4mm圓形壓電陶瓷片可滿足發(fā)電路面各項技術要求,結構改進處理方案可有效延長壓電元件使用壽命;D型剛性銅片與橡膠墊組合保護結構為最佳保護措施類型;薄層罩面復合AC-13型發(fā)電路面電學輸出效果最優(yōu),可穩(wěn)定連續(xù)輸出峰值電壓14V、有效輸出功率0.44mW的交流電信號;標準能量采集改進電路可高效完成對道路壓電微能量的轉換和采集功能。
[Abstract]:Aiming at the technical defects of the road surface generated by piezoelectric transducer, the piezoelectric element suitable for road power generation is selected and the structure is improved. Four protection measures are designed, and the comprehensive performance evaluation index is put forward and the optimal protection structure is determined. The electrical output effect of the typical surface structure combined with small size specimen is evaluated, the energy acquisition entity circuit is developed and the practical application state of the circuit is explored. The results show that the diameter of 35mm and thickness of 0.4mm circular piezoelectric ceramic can meet the technical requirements of power generation pavement. The structure improvement scheme can effectively prolong the service life of piezoelectric elements and the combination of D type rigid copper sheet and rubber pad is the best protection measure type, and the electric output effect of TLC-13 composite power generation road surface is the best. Stable output peak voltage of 14 V, effective output power of 0.44 MW AC electrical signal, standard energy acquisition circuit can efficiently complete the road piezoelectric micro-energy conversion and acquisition function.
【作者單位】： 長安大學公路學院;石家莊市交通運輸局;同濟大學道路與交通工程教育部重點實驗室;俄克拉荷馬州立大學土木與環(huán)境工程學院;
【基金】：國家自然科學基金項目(51208045) 中央高�；究蒲袠I(yè)務費專項資金項目(310821162013)
【分類號】：TM619;U416.2
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本文編號：2134329