振动式蓝莓采摘的机理分析与仿真

为改变中国蓝莓人工采摘状况,实现高丛蓝莓的机械化采摘,该文研究了高丛蓝莓的采摘机理,并对所建立的数学模型进行仿真分析。首先分析蓝莓振动采摘机理,建立蓝莓植株采摘物理模型,推导得出动力学方程,采用数学物理微分方程求解得到蓝莓树枝稳态受迫振动输出解及采摘惯性力。运用MATLAB软件仿真分析蓝莓树枝稳态受迫振动时域仿真曲线及采摘力幅频特性仿真曲线,并进行了蓝莓采摘试验,试验数据与仿真结果一致：仿真结果满足蓝莓采摘条件的采摘频率为14～16rad/s,较优的采摘频率为15rad/s,该频率下的采摘效率为913颗/min,采摘生果率为2.99%,采摘果实损坏率为2.86%,未采净率为3.17%,机采人采...

Full description

Saved in:
Bibliographic Details
Published in农业工程学报 Vol. 29; no. 12; pp. 40 - 46
Main Author 王海滨 郭艳玲 鲍玉冬 耿雷
Format Journal Article
LanguageChinese
Published 东北林业大学工程技术学院,哈尔滨,150040%东北林业大学机电工程学院,哈尔滨,150040%黑龙江科技学院机械工程学院,哈尔滨,150027 2013
Subjects
农业机械
振动
机械化采摘
角速度
高丛蓝莓
高丛蓝莓
agricultural machinery
high-bush blueberry
振动
机械化采摘
angular velocity
mechanization picking
角速度
vibrations
农业机械
Online AccessGet full text
ISSN1002-6819
DOI10.3969/j.issn.1002-6819.2013.12.006

Cover

More Information
Summary:为改变中国蓝莓人工采摘状况,实现高丛蓝莓的机械化采摘,该文研究了高丛蓝莓的采摘机理,并对所建立的数学模型进行仿真分析。首先分析蓝莓振动采摘机理,建立蓝莓植株采摘物理模型,推导得出动力学方程,采用数学物理微分方程求解得到蓝莓树枝稳态受迫振动输出解及采摘惯性力。运用MATLAB软件仿真分析蓝莓树枝稳态受迫振动时域仿真曲线及采摘力幅频特性仿真曲线,并进行了蓝莓采摘试验,试验数据与仿真结果一致：仿真结果满足蓝莓采摘条件的采摘频率为14～16rad/s,较优的采摘频率为15rad/s,该频率下的采摘效率为913颗/min,采摘生果率为2.99%,采摘果实损坏率为2.86%,未采净率为3.17%,机采人采效率比为10.14。研究结果可为高丛蓝莓采摘机的研制提供参考。
Bibliography:Recently,the blueberry was served as the king of fruits,and people have been paying more attention to the health care effect,economic and medicinal value of the blueberry.Planting the blueberry is a new economic growth point in agriculture and forestry.The demand for blueberry exceeds the supply in the international market with high-speed growth demand.However,the blueberries are harvested depending entirely on hand picking in China with serious losses,and the picking cost accounts for 50%-70% of the total blueberry production cost.The old harvesting method restricts the widespread popularization and planting of blueberries.Research on blueberry picking machines and blueberry picking mechanisms is in its infancy in China.The price of blueberry picking machines is high.An experiment was conducted to change the artificial harvesting status of the blueberry,realize the mechanization of a high-bush blueberry-picking tool,and establish the theoretical guidance and design basis for the blueberry-picking machine for
ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2013.12.006