利用模态试验和有限元分析确定材料特性参数的方法
|
摘要
以某型号行星齿轮减速器的箱体前壳零件为研究对象,采用LMS模态测试系统进行锤击法自由模态试验,用模态分析软件LMS Test. Lab对采集到的数据进行处理,识别出零件的前8阶固有频率和阻尼比,根据模态置信准则对得到的模态结果进行验证。结果表明,试验模态参数识别结果可靠。由于箱体具体材料、牌号未知,不能建立准确的有限元模型,而利用数值模拟和试验结合的手段,采用多因子正交试验法制定了试验参数组,最终得到了可靠的材料属性参数。
Taking the front housing of a certain type of planetary gearbox as the research object. At first,by using the LMS modal test system,an impact hammer test on the front housing of gearbox is performed,which is hung with rubber bands to simulate the free boundary conditions. By processing the collected data with LMS Test. Lab software,the first 8 order natural frequencies and damping ratios of the front housing of gearbox are identified. The modal results are verified according to the modal confidence criterion,it turns out that the experimental modal parameters identification results are reliable. Since the specific materials and grades of the cabinet are unknown,the accurate finite element model can't be established. Combining numerical simulation with experimentation,the experimental parameter set is established by using the multi-factor orthogonal test method,and finally the reliable material property parameters of the gearbox are obtained.
Taking the front housing of a certain type of planetary gearbox as the research object. At first,by using the LMS modal test system,an impact hammer test on the front housing of gearbox is performed,which is hung with rubber bands to simulate the free boundary conditions. By processing the collected data with LMS Test. Lab software,the first 8 order natural frequencies and damping ratios of the front housing of gearbox are identified. The modal results are verified according to the modal confidence criterion,it turns out that the experimental modal parameters identification results are reliable. Since the specific materials and grades of the cabinet are unknown,the accurate finite element model can't be established. Combining numerical simulation with experimentation,the experimental parameter set is established by using the multi-factor orthogonal test method,and finally the reliable material property parameters of the gearbox are obtained.
引文
[1]张力.模态分析与实验[M].北京:清华大学出版社,2011:10-11.
[2]朱新龙,熊禾根.基于Romax的减速箱箱体有限元模态分析[J].机械传动,2013,37(2):94-96.
[3]曾孝文,张金梅.箱体结构对减速器振动噪声的影响仿真研究[J].科学技术与工程,2014,14(12):253-256.
[4]单丽君,孙改焕,关天民,等.环板式针摆行星减速器箱体的模态分析[J].机械研究与应用,2007(1):27-28.
[5]戴红娟,周红良.偏曲轴少齿差行星减速器箱体的模态分析[J].机械设计与制造,2010(12):28-29.
[6] ZHOU Jun,SU Jinying. Modal analysis on transmission gear train of planetary reducer[J]. Advanced Materials Research,2012,591/592/593(2):2100-2103.
[7]郭伟强,刘岩,张晓排,等.环板式针摆行星减速器箱体的模态分析[J].噪声与振动控制,2008(3):29-31,80.
[8]张坤,于洋,余晓辉.基于MIMO法的行星齿轮减速器的模态试验[J].船舶力学,2015(11):1377-1384.
[9]张俊,郭凡,谢胜龙.少齿差星轮型减速器的弹性动力学建模与模态分析[J].振动与冲击,2015,34(12):169-175.
[10]肖正明,秦大同,武文辉,等.盾构机多级行星减速器箱体模态分析与试验[J].重庆大学学报,2012,35(7):37-42.
[11]王家序,黄超,肖科,等.新型少齿差行星齿轮装置振动特性分析与实验研究[J].振动与冲击,2013,32(5):31-37.
[12] WANG F,FANG Z D. The herringbone gear box modal analysis and experimental study[J]. Applied Mechanics&Materials,2013,387:328-331.
[13]冯玉宾,徐宏海. RV减速器参数化建模与模态分析[J].机械设计与制造,2015(12):101-104.
[14]何卫东,吴鑫辉.机器人用RV减速器模态分析与试验[J].机械设计,2016(11):72-76.
[15] CARNE T G,DOHRMANN C R. A modal test design strategy for model correlation[J]. Proceedings of SPIE-The International Society for Optical Engineering,1994,2460:927.
[16]全国技术产品文件标准化技术委员会.机械产品结构有限元力学分析通用规则:GB/T 33582-2017[S].北京:中国标准出版社,2017:7-8.
[17]机械设计手册编委会.机械设计手册[M].新版.北京:机械工业出版社,2007:2-4.
[18]成大先.机械设计手册:单行本:常用设计资料[M]. 6版.北京:化学工业出版社,2017:1-6.
[2]朱新龙,熊禾根.基于Romax的减速箱箱体有限元模态分析[J].机械传动,2013,37(2):94-96.
[3]曾孝文,张金梅.箱体结构对减速器振动噪声的影响仿真研究[J].科学技术与工程,2014,14(12):253-256.
[4]单丽君,孙改焕,关天民,等.环板式针摆行星减速器箱体的模态分析[J].机械研究与应用,2007(1):27-28.
[5]戴红娟,周红良.偏曲轴少齿差行星减速器箱体的模态分析[J].机械设计与制造,2010(12):28-29.
[6] ZHOU Jun,SU Jinying. Modal analysis on transmission gear train of planetary reducer[J]. Advanced Materials Research,2012,591/592/593(2):2100-2103.
[7]郭伟强,刘岩,张晓排,等.环板式针摆行星减速器箱体的模态分析[J].噪声与振动控制,2008(3):29-31,80.
[8]张坤,于洋,余晓辉.基于MIMO法的行星齿轮减速器的模态试验[J].船舶力学,2015(11):1377-1384.
[9]张俊,郭凡,谢胜龙.少齿差星轮型减速器的弹性动力学建模与模态分析[J].振动与冲击,2015,34(12):169-175.
[10]肖正明,秦大同,武文辉,等.盾构机多级行星减速器箱体模态分析与试验[J].重庆大学学报,2012,35(7):37-42.
[11]王家序,黄超,肖科,等.新型少齿差行星齿轮装置振动特性分析与实验研究[J].振动与冲击,2013,32(5):31-37.
[12] WANG F,FANG Z D. The herringbone gear box modal analysis and experimental study[J]. Applied Mechanics&Materials,2013,387:328-331.
[13]冯玉宾,徐宏海. RV减速器参数化建模与模态分析[J].机械设计与制造,2015(12):101-104.
[14]何卫东,吴鑫辉.机器人用RV减速器模态分析与试验[J].机械设计,2016(11):72-76.
[15] CARNE T G,DOHRMANN C R. A modal test design strategy for model correlation[J]. Proceedings of SPIE-The International Society for Optical Engineering,1994,2460:927.
[16]全国技术产品文件标准化技术委员会.机械产品结构有限元力学分析通用规则:GB/T 33582-2017[S].北京:中国标准出版社,2017:7-8.
[17]机械设计手册编委会.机械设计手册[M].新版.北京:机械工业出版社,2007:2-4.
[18]成大先.机械设计手册:单行本:常用设计资料[M]. 6版.北京:化学工业出版社,2017:1-6.