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

控釋肥顆粒群仿真接觸參數(shù)標(biāo)定與試驗
CSTR:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

國家自然科學(xué)基金項目(32201682),、山東省重點研發(fā)計劃項目(2022CXGC020706)、財政部和農(nóng)業(yè)農(nóng)村部:國家現(xiàn)代農(nóng)業(yè)產(chǎn)業(yè)技術(shù)體系項目(CARS-27),、泰安市揭榜掛帥項目(2021-004)和泰安市科技型中小企業(yè)創(chuàng)新能力提升工程項目(2022TATSGC012)


Simulated Contact Parameters Calibration and Experiment of Controlled-release Fertilizer Particles
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:

    接觸參數(shù)影響控釋肥顆粒離散元仿真結(jié)果,。為了精準(zhǔn)模擬控釋肥顆粒力學(xué)行為與運動規(guī)律,本文基于離散元法對控釋肥顆粒的接觸參數(shù)進行標(biāo)定與試驗,。首先,,建立控釋肥離散元基礎(chǔ)模型,并利用臺架和仿真試驗相結(jié)合的方法,,在EDEM中對控釋肥顆粒與PVC板之間接觸參數(shù)進行標(biāo)定,。其次,通過碰撞彈跳試驗,、斜面滑移試驗和斜面滾動試驗測得控釋肥顆粒與PVC板之間的碰撞恢復(fù)系數(shù),、靜摩擦因數(shù)和滾動摩擦因數(shù)分別為0.539、0.507和0.105,。最后,,通過堆積試驗、最陡爬坡試驗和正交旋轉(zhuǎn)組合試驗,,得到控釋肥顆粒間的碰撞恢復(fù)系數(shù),、靜摩擦因數(shù)和滾動摩擦因數(shù)分別為0.38、0.25和0.09,,并通過無底圓筒提升試驗和排肥臺架試驗進行驗證。試驗結(jié)果表明,,堆積角實際值與仿真結(jié)果的相對誤差為1.54%,,排肥量實際值與仿真結(jié)果4種轉(zhuǎn)速下的相對誤差分別為4.38%、4.23%,、4.41%,、4.36%,所標(biāo)定的控釋肥接觸參數(shù)精準(zhǔn)有效,,可為控釋肥離散元仿真提供數(shù)據(jù)和模型支撐,。

    Abstract:

    The contact parameters affect the discrete element simulation results of controlled-release fertilizer particles. In order to accurately simulate the mechanical behavior and motion law of controlled-release fertilizer particles, the contact parameters of controlled-release fertilizer particles were calibrated and experimented based on the discrete element method. Firstly, the basic model of controlled-release fertilizer discrete elements was established, and the contact parameters between controlled-release fertilizer particles and PVC panels were calibrated in EDEM by combining bench and simulation experiment. Secondly, the collision recovery coefficient, static friction factor and rolling friction factor between controlled-release fertilizer particles and PVC plate were measured by collision bounce experiment, slope slip experiment and inclined rolling experiment to be 0.539, 0.507 and 0.105, respectively. Finally, through the accumulation experiment, the steepest climbing experiment and the orthogonal rotation combination experiment, the collision recovery coefficient, static friction factor and rolling friction factor between controlled-release fertilizer particles were obtained as 0.38, 0.25 and 0.09, respectively, and verified by bottomless cylinder lifting experiment and fertilizer discharge bench experiment. The experiment results showed that the relative error between the actual value of the accumulation angle and the simulation result was 1.54%, and the relative error between the actual value of the discharge amount and the simulation result at the four speeds was 4.38%, 4.23%, 4.41% and 4.36%, respectively, and the contact parameters of the calibrated controlled-release fertilizer were accurate and effective, which can provide data and model support for the simulation of controlled-release fertilizer discrete elements.

    參考文獻
    相似文獻
    引證文獻
引用本文

張宏建,陳修波,李宏立,田園,范國強,許珺爍,劉雙喜,王金星.控釋肥顆粒群仿真接觸參數(shù)標(biāo)定與試驗[J].農(nóng)業(yè)機械學(xué)報,2024,55(6):80-90. ZHANG Hongjian, CHEN Xiubo, LI Hongli, TIAN Yuan, FAN Guoqiang, XU Junshuo, LIU Shuangxi, WANG Jinxing. Simulated Contact Parameters Calibration and Experiment of Controlled-release Fertilizer Particles[J]. Transactions of the Chinese Society for Agricultural Machinery,2024,55(6):80-90.

復(fù)制
分享
文章指標(biāo)
  • 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:2023-10-24
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2024-06-10
  • 出版日期:
文章二維碼