ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

小型電動(dòng)割草機(jī)刀盤變形試驗(yàn)分析與仿真
CSTR:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號(hào):

基金項(xiàng)目:


Simulation of Minitype Grass Trimmer’s Cutter Deformation
Author:
Affiliation:

Fund Project:

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

    割草機(jī)刀盤的旋轉(zhuǎn)變形是導(dǎo)致其產(chǎn)生機(jī)械振動(dòng)噪聲的主要因素之一。利用高速數(shù)碼攝像機(jī)分別拍攝了割草機(jī)刀盤在無保護(hù)端蓋和有保護(hù)端蓋狀態(tài)下的旋轉(zhuǎn)變形圖像，獲得了刀盤的高速旋轉(zhuǎn)變形曲線,，分析了產(chǎn)生變形的原因,；并在試驗(yàn)的基礎(chǔ)上建立了刀盤的有限元模型，通過ANSYS分析軟件,，模擬了刀盤的徑向變形情況,，分析了徑向變形與刀盤結(jié)構(gòu)和電動(dòng)機(jī)轉(zhuǎn)速之間的關(guān)系。減小刀盤大孔面積能使刀盤最大徑向位移減小(在12.000r/min時(shí),，減小約30%),；維持電動(dòng)機(jī)轉(zhuǎn)速在8.000r/min左右，可使最大徑向位移不超過0.2mm,，刀盤運(yùn)轉(zhuǎn)平穩(wěn),。

    Abstract:

    The cutter’s rotating deformation plays an important role which caused the vibration noise of grass trimmer. Highspeed video camera was applied to get the deformation images of grass trimmer’s cutter with protecting cover and without it. The tendencies and reasons of deformation were proposed. The finite element model of cutter based on experiment was established, the radial deformation was simulated by ANSYS, and the relations of the radial deformation between the cutter structure and rotational speed were analyzed. Reducing the area of big hole in the cutter could decrease the maximum radial deformation (in 12.000r/min, the value decreased by about 30%); Maintaining the motor speed at 8.000r/min around could control the maximum radial deformation below 0.2mm and keep a smooth moving. 

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

單春賢,邵 霞,劉 濤,楊敏官.小型電動(dòng)割草機(jī)刀盤變形試驗(yàn)分析與仿真[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2010,41(12):80-. Shan Chunxian, Shao Xia, Liu Tao, Yang Minguan. Simulation of Minitype Grass Trimmer’s Cutter Deformation[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(12):80-.

復(fù)制
分享
文章指標(biāo)
  • 點(diǎn)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:
  • 出版日期:
文章二維碼