發(fā)布時(shí)間：2018-01-07 18:22

  本文關(guān)鍵詞：基于三角位移放大機(jī)構(gòu)的壓電制動(dòng)器研究　出處：《壓電與聲光》2017年06期 　論文類型：期刊論文

  更多相關(guān)文章： 壓電制動(dòng)器 微位移放大機(jī)構(gòu) 三角形放大 遲滯效應(yīng) 力學(xué)模型

【摘要】：提出了一種應(yīng)用于壓電制動(dòng)器的微位移放大機(jī)構(gòu),該機(jī)構(gòu)以疊層壓電陶瓷為驅(qū)動(dòng)元件,通過基于三角形放大原理的柔性鉸鏈放大機(jī)構(gòu),放大疊層壓電陶瓷的輸出位移。分析了放大機(jī)構(gòu)的運(yùn)動(dòng)及放大機(jī)理,建立了制動(dòng)系統(tǒng)的力學(xué)模型,并利用ANSYS軟件建立機(jī)構(gòu)有限元模型進(jìn)行仿真,在試制樣機(jī)上對(duì)其輸出特性進(jìn)行了實(shí)驗(yàn)。實(shí)驗(yàn)測(cè)試結(jié)果表明,該機(jī)構(gòu)對(duì)疊層壓電陶瓷輸出位移的放大倍數(shù)為3.2倍,與有限元仿真得到的放大倍數(shù)4倍相近,一階固有頻率為1 814Hz,最大輸出力為44.1N(150V電壓下),且該機(jī)構(gòu)線性良好、分辨率高、遲滯效應(yīng)較小。
[Abstract]:The micro displacement amplification mechanism applied to a piezoelectric actuator, the mechanism of laminated piezoelectric ceramic as driving element by magnifying mechanism with flexible hinges based on triangle amplification principle, output displacement amplification of laminated piezoelectric ceramic is analyzed. And on the mechanism of amplification mechanism movement, established the mechanical model of braking system, and the establishment of finite element model of mechanism simulation using ANSYS software, the prototype of the output characteristics were studied. The experimental results show that, the magnification of laminated piezoelectric ceramic output displacement of the mechanism for 3.2 times, and the finite element simulation of the magnification of 4 is similar to that of the first order natural frequency is 1 814Hz, the maximum output power is 44.1N (150V voltage), and the mechanism of good linearity, high resolution, small hysteresis effect.

【作者單位】： 南京航空航天大學(xué)機(jī)械結(jié)構(gòu)力學(xué)及控制國家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(51575259) 機(jī)械結(jié)構(gòu)力學(xué)及控制國家重點(diǎn)實(shí)驗(yàn)室(南京航空航天大學(xué))自主研究課題資助項(xiàng)目(0315K01) 江蘇省研究生培養(yǎng)創(chuàng)新工程資助項(xiàng)目(KYLX_0236)
【分類號(hào)】：TN384
【正文快照】： 0引言在機(jī)械傳動(dòng)中,摩擦式離合制動(dòng)器是必不可少的機(jī)構(gòu),其利用運(yùn)動(dòng)之間的摩擦力傳遞扭矩和運(yùn)動(dòng),這類裝置的工作特點(diǎn)是要盡可能多地輸出制動(dòng)力矩,同時(shí)使用盡可能小的驅(qū)動(dòng)功率、消耗較少的能量且產(chǎn)生不大的位移。在工業(yè)制動(dòng)器和汽車制動(dòng)器領(lǐng)域通常需要較大的力矩,對(duì)精度和功耗等，

本文編號(hào)：1393713