亚洲一区欧美在线,日韩欧美视频免费观看,色戒的三场床戏分别是在几段,欧美日韩国产在线人成

穴盤育苗精密播種裝置壓電振動臺特性分析與試驗
CSTR:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

高等學校博士學科點專項科研基金資助項目(20103227120010)、江蘇省農(nóng)機三項工程資助項目(NJ2010-17)和江蘇大學現(xiàn)代農(nóng)業(yè)裝備與技術(shù)省部共建教育部重點實驗室開放基金項目(NZ2008-05)


Analysis and Experiment on Characteristic of Piezoelectric Vibration Table for Precision Tray Seeding Device
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 圖/表
  • |
  • 訪問統(tǒng)計
  • |
  • 參考文獻
  • |
  • 相似文獻
  • |
  • 引證文獻
  • |
  • 資源附件
  • |
  • 文章評論
    摘要:

    利用壓電元件的逆壓電效應設計了一種用于精密播種蔬菜、花卉、林木等微小種子的壓電振動臺,在外加電場的作用下使壓電振動驅(qū)動系統(tǒng)產(chǎn)生機械微位移,經(jīng)位移放大機構(gòu)放大后驅(qū)動種子盤振動,使種子盤上的種子產(chǎn)生有利于吸種盤吸種的“沸騰”運動。建立了壓電振動臺數(shù)學模型,研究分析了壓電振動臺的動、靜態(tài)特性并進行了試驗。試驗結(jié)果表明:當外加電壓為90~110 V時,壓電驅(qū)動系統(tǒng)具有較強的驅(qū)動能力,振幅達1.31 mm,機械系統(tǒng)振動響應頻率在13~55 Hz之間,且頻寬可調(diào)(共振頻率為25 Hz);壓電振動臺具有良好的動態(tài)特性和較好的播種性能,滿足精密播種的農(nóng)藝要求。

    Abstract:

    A piezoelectricity vibration table was designed for seeding precisely the small size of seeds of some vegetables, trees, flowers, etc. The piezoelectric vibration driving system produced the mechanical micro displacements with the applied electric field. The micro-displacements amplified by the amplification mechanism drove the seed dish vibrating and produced the boiling movement beneficial to suck seeds. The mathematical model of piezoelectric vibration was established. The static and dynamic state properties of the variation table were analyzed and experienced. The experimental results showed that the piezoelectric vibration system had a higher drive capacity with 90~110V electric voltage. Vibration amplitude achieved 131mm, vibration frequency was at 13~55Hz and adjustable (resonant frequency of 25Hz). The piezoelectric vibration table has better characteristics and higher seeding performances. It runs smoothly and meets the agronomic demands for precise tray seeding. 

    參考文獻
    相似文獻
    引證文獻
引用本文

陳書法,張石平,李耀明.穴盤育苗精密播種裝置壓電振動臺特性分析與試驗[J].農(nóng)業(yè)機械學報,2012,43(8):66-70. Chen Shufa, Zhang Shiping, Li Yaoming. Analysis and Experiment on Characteristic of Piezoelectric Vibration Table for Precision Tray Seeding Device[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(8):66-70.

復制
分享
文章指標
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2012-07-24
  • 出版日期:
文章二維碼