喷雾机喷杆有限元模态分析与试验
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摘要
针对喷杆喷雾机在田间正常作业时由于路面凹凸不平所引起的喷杆振动问题,对一种五段式喷杆进行了研究。利用Pro-E建立了该喷杆的三维几何模型,并采用ANSYS对该喷杆的有限元模型进行模态分析,求解出喷杆的前8阶固有频率和模态阵型,结果显示:前6阶固有频率均在10Hz以下,喷杆容易发生共振。通过锤击法对该喷杆进行模态试验,对比有限元试验与模态试验,结果发现:喷杆前8阶共振频率差均小于10%,各阶振型所对应的模态置信准则都大于0.8,验证了理论分析的准确性。此次有限元分析可为喷杆的进一步优化设计和动力学分析提供理论依据。
In order to solve the problem of rod vibration caused by uneven pavement,a five-stage spray rod was studied in this paper. First,the three-dimensional geometric model of the boom was established in Pro-E software. And then it was imported into ANSYS Workbench and a modal analysis of finite element model of the boom was made. The first 8 natural frequencies and modal shapes of the spray rod were calculated. It was discovered that the first 6 natural frequencies were all below 10 Hz and resonance was easy to occur in the boom. Finally,took the modal test of the spray rod by hammering method and compared the test results with the computational modal test results,which showed that the resonance frequency deviation of the first 8 modes of the spray bar were all less than 10%,the corresponding modal assurance criterion was greater than 0. 8 and can verify the accuracy of theoretical analysis. This modal analysis provided a theoretical basis for further optimization design and dynamic analysis for the boom.
In order to solve the problem of rod vibration caused by uneven pavement,a five-stage spray rod was studied in this paper. First,the three-dimensional geometric model of the boom was established in Pro-E software. And then it was imported into ANSYS Workbench and a modal analysis of finite element model of the boom was made. The first 8 natural frequencies and modal shapes of the spray rod were calculated. It was discovered that the first 6 natural frequencies were all below 10 Hz and resonance was easy to occur in the boom. Finally,took the modal test of the spray rod by hammering method and compared the test results with the computational modal test results,which showed that the resonance frequency deviation of the first 8 modes of the spray bar were all less than 10%,the corresponding modal assurance criterion was greater than 0. 8 and can verify the accuracy of theoretical analysis. This modal analysis provided a theoretical basis for further optimization design and dynamic analysis for the boom.
引文
[1]王立军,孙文峰,陈宝昌,等.喷杆式喷雾机的研究[J].农机化研究,2008(7):63-65.
[2]贾卫东,张磊江,燕明德,等.喷杆喷雾机研究现状及发展趋势[J].中国农机化,2013(4):19-22.
[3]王帅.国内植保机械发展探析[J].农业科技与装备,2012(9):42-43.
[4]刘丰乐,张晓辉,马伟伟,等.国外大型植保机械及施药技术发展现状[J].农机化研究,2010,32(3):246-248.
[5]李洪霞.喷杆式喷雾机使用调整及故障排除[J].农民致富之友,2015(9):182-182.
[6]王松林,赵春江,王秀.喷杆高度调节系统设计与试验[J].农机化研究,2014,36(8):161-164.
[7]陈志刚,吴春笃,杨学军.喷杆喷雾雾量的分布均匀性[J].江苏大学学报:自然科学版,2008,29(6):465-468.
[8]Langenakens J J,Clijmans L,Ramon H,et al.The Effects of Vertical Sprayer Boom Movements on the Uniformity of Spray Distribution[J].Journal of Agricultural Engineering Research,1999,74(3):281-291.
[9]Nation H J.The dynamic behavior of field sprayer booms[J].Journal of Agriculture Engineering Research,1982,27(1):61-70.
[10]陈晨,薛新宇,顾伟,等.喷雾机喷杆结构形状及截面尺寸优化与试验[J].农业工程学报,2015,31(9):50-56.
[11]张际先.喷雾机喷臂悬架性能的动态分析[J].农业机械学报,1996(S1):138-142.
[12]何耀杰,邱白晶,杨亚飞,等.基于有限元模型的喷雾机喷杆弹性变形分析与控制[J].农业工程学报,2014,30(6):28-36.
[13]杨明亚,杨涛,汤本金,等.ANSYS在数控机床模态分析中的应用[J].中国制造业信息化,2006,35(17):40-43.
[14]王宇,刘凯,林永龙.ANSYS软件在结构模态分析中的应用[J].机电工程技术,2013(9):38-40.
[15]陆爽,孙明礼,丁金福,等.ANSYSWorkbench13.0有限元分析从入门到精通[M].北京:机械工业出版社,2012:186-187.
[16]郑文鑫,方文熙,张德晖,等.基于CATIA的烟秆清理机机架模态分析[J].福建农机,2014(1):29-31.
[17]刘选伟,金亮,王景立.基于ANSYS Workbench的深松机机架模态分析[J].农机化研究,2015,37(5):29-31.
[18]孙康,王军锋.刮板式花生脱壳机机架的模态分析[J].农机化研究,2013,35(6):66-69.
[19]刘晓燕,杜宏睿,李新荣.基于ANSYSWorkbench的环锭细纱机机架材料研究[J].纺织器材,2016,43(S1):6-8.
[20]杨俊哲.基于Workbench多倾角型振动筛的模态分析[J].煤炭学报,2012(S1):240-244.
[21]Clijmans L,Ramon H,de Baerdemaeker J.Structural modification effects on the dynamic behavior of an agricultural tractor[J].Transactions of the ASAE,1998,41(1):5-10.
[22]Kennes P,Anthonis J,Clijmans L,et al.Construction of a portable test rig to perform experimental modal analysis on mobile agricultural machinery[J].Journal of Sound and Vibration,1999,228(2):421-441.
[23]刘丰乐,张晓辉,马伟伟,等.国外大型植保机械及施药技术发展现状[J].农机化研究,2010,32(3):246-248.
[24]段勇军,顾吉丰,平丽浩,等.雷达天线座模态分析与试验研究[J].机械设计与制造,2010(2):214-216.
[25]陈黎卿,陈无畏,王钰明,等.智能四驱汽车分动器壳体有限元分析与模态试验[J].中国机械工程,2013,24(16):2168-2172.
[26]苏忠亭,徐达,杨明华,等.基于模态试验的某火炮身管有限元模型修正[J].振动与冲击,2012,31(24):54-59.
[2]贾卫东,张磊江,燕明德,等.喷杆喷雾机研究现状及发展趋势[J].中国农机化,2013(4):19-22.
[3]王帅.国内植保机械发展探析[J].农业科技与装备,2012(9):42-43.
[4]刘丰乐,张晓辉,马伟伟,等.国外大型植保机械及施药技术发展现状[J].农机化研究,2010,32(3):246-248.
[5]李洪霞.喷杆式喷雾机使用调整及故障排除[J].农民致富之友,2015(9):182-182.
[6]王松林,赵春江,王秀.喷杆高度调节系统设计与试验[J].农机化研究,2014,36(8):161-164.
[7]陈志刚,吴春笃,杨学军.喷杆喷雾雾量的分布均匀性[J].江苏大学学报:自然科学版,2008,29(6):465-468.
[8]Langenakens J J,Clijmans L,Ramon H,et al.The Effects of Vertical Sprayer Boom Movements on the Uniformity of Spray Distribution[J].Journal of Agricultural Engineering Research,1999,74(3):281-291.
[9]Nation H J.The dynamic behavior of field sprayer booms[J].Journal of Agriculture Engineering Research,1982,27(1):61-70.
[10]陈晨,薛新宇,顾伟,等.喷雾机喷杆结构形状及截面尺寸优化与试验[J].农业工程学报,2015,31(9):50-56.
[11]张际先.喷雾机喷臂悬架性能的动态分析[J].农业机械学报,1996(S1):138-142.
[12]何耀杰,邱白晶,杨亚飞,等.基于有限元模型的喷雾机喷杆弹性变形分析与控制[J].农业工程学报,2014,30(6):28-36.
[13]杨明亚,杨涛,汤本金,等.ANSYS在数控机床模态分析中的应用[J].中国制造业信息化,2006,35(17):40-43.
[14]王宇,刘凯,林永龙.ANSYS软件在结构模态分析中的应用[J].机电工程技术,2013(9):38-40.
[15]陆爽,孙明礼,丁金福,等.ANSYSWorkbench13.0有限元分析从入门到精通[M].北京:机械工业出版社,2012:186-187.
[16]郑文鑫,方文熙,张德晖,等.基于CATIA的烟秆清理机机架模态分析[J].福建农机,2014(1):29-31.
[17]刘选伟,金亮,王景立.基于ANSYS Workbench的深松机机架模态分析[J].农机化研究,2015,37(5):29-31.
[18]孙康,王军锋.刮板式花生脱壳机机架的模态分析[J].农机化研究,2013,35(6):66-69.
[19]刘晓燕,杜宏睿,李新荣.基于ANSYSWorkbench的环锭细纱机机架材料研究[J].纺织器材,2016,43(S1):6-8.
[20]杨俊哲.基于Workbench多倾角型振动筛的模态分析[J].煤炭学报,2012(S1):240-244.
[21]Clijmans L,Ramon H,de Baerdemaeker J.Structural modification effects on the dynamic behavior of an agricultural tractor[J].Transactions of the ASAE,1998,41(1):5-10.
[22]Kennes P,Anthonis J,Clijmans L,et al.Construction of a portable test rig to perform experimental modal analysis on mobile agricultural machinery[J].Journal of Sound and Vibration,1999,228(2):421-441.
[23]刘丰乐,张晓辉,马伟伟,等.国外大型植保机械及施药技术发展现状[J].农机化研究,2010,32(3):246-248.
[24]段勇军,顾吉丰,平丽浩,等.雷达天线座模态分析与试验研究[J].机械设计与制造,2010(2):214-216.
[25]陈黎卿,陈无畏,王钰明,等.智能四驱汽车分动器壳体有限元分析与模态试验[J].中国机械工程,2013,24(16):2168-2172.
[26]苏忠亭,徐达,杨明华,等.基于模态试验的某火炮身管有限元模型修正[J].振动与冲击,2012,31(24):54-59.
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