【摘要】：針對壓電換能器發(fā)電路面存在的技術(shù)缺陷,優(yōu)選適用于道路發(fā)電的壓電元件并進(jìn)行結(jié)構(gòu)改進(jìn)處理,設(shè)計出4種保護(hù)措施方案,提出了綜合性能評價指標(biāo)并確定最優(yōu)保護(hù)結(jié)構(gòu),測試評價了典型面層結(jié)構(gòu)組合小尺寸試件電學(xué)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(yīng)用工作狀態(tài)。結(jié)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(shù)要求,結(jié)構(gòu)改進(jìn)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(hù)結(jié)構(gòu)為最佳保護(hù)措施類型;薄層罩面復(fù)合AC-13型發(fā)電路面電學(xué)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(biāo)準(zhǔn)能量采集改進(jìn)電路可高效完成對道路壓電微能量的轉(zhuǎn)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(xué)公路學(xué)院;石家莊市交通運輸局;同濟(jì)大學(xué)道路與交通工程教育部重點實驗室;俄克拉荷馬州立大學(xué)土木與環(huán)境工程學(xué)院;
【基金】：國家自然科學(xué)基金項目(51208045) 中央高校基本科研業(yè)務(wù)費專項資金項目(310821162013)
【分類號】：TM619;U416.2
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本文編號：2134329