基于响应面方法的突风机构有限元模型修正
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- 英文论文题名：Finite element model updating of the blade swing mechanism based on response surface method
- 论文作者：麻越垠 ; 陈万华 ; 王元兴 ; 聂旭涛 ; 马斌
- 英文论文作者：MA Yue-yin ; CHEN Wan-hua ; WANG Yuan-xing ; Nie Xue-tao ; MA Bin ; China Aerodynamics Research and Development Center ; State Key Laboratory of Aerodynamics
- 年：2016
- 作者机构：中国空气动力研究与发展中心;空气动力学国家重点实验室;
- 论文关键词：模型修正 ; 响应面方法 ; 模态试验 ; 模态分析 ; 突风机构
- 英文论文关键词：model updating ; response surface method ; mode test ; mode analysis ; blade swing mechanism
- 会议召开时间：2016-07-28
- 会议录名称：第二十七届全国振动与噪声应用学术会议论文集
- 语种：中文
- 分类号：TH113
- 学会代码：ZDZD
- 会议名称：第二十七届全国振动与噪声应用学术会议
- 会议地点：中国黑龙江哈尔滨
- 主办单位：中国振动工程学会振动与噪声控制专业委员会
- 学会名称：中国振动工程学会振动与噪声控制专业委员会
- 页数：6
- 文件大小：1481k
- 原文格式：D
- 会议级别：全国
摘要
为提高突风机构模态分析与模态试验的相关性,使用响应面方法对有限元模型多个参数进行优化,实现模型修正。首先使用有限元模型进行模态分析,提取整体模态;其次,采用移动传感器方法对大型装配体进行整体模态试验,通过模态判据准则检验模态试验结果、模态参与因子确定主要整体模态;再次,基于有限元模型误差分析,确定对主要部件分别采用不同材料修正参数,通过中心复合试验设计确定样本空间,使用多目标响应面方法对样本进行回归分析,在回归分析的响应面内对待修正参数进行非线性约束优化,得到最优解;最后,使用修正参数重新进行模态分析实现模型确认,并进行动力学计算,与实际测试结果对比。结果表明,修正后的模态分析与模态试验结果相关性提高,前三阶整体模态频率误差均值由9.71%减小至0.73%,振型相关性由0.74提升至0.89。
In order to improve the correlation of modal analysis and modal test for the blade swing mechanism, the response surface method was used to optimize multi-parameters of finite element model for model updating. First, mode analysis was calculated to get mode information of the whole assembly. Second, mode test was present using MIMO method. For validating test result, mode assurance criterion was introduced, while mode participation factor confirmed which modes should be the main mode. Third, based on finite element error analysis, some material parameters of parts were confirmed to be mode updating targets. The samples, which were generated by central composite test design, carried out regression analysis though response surface models in which mode updating targets were optimized. Finally, mode analysis was calculated in updated parameters to achieve model assurance. The results show that correlation of modal test and updated modal analysis are improved, the frequency error average of the first three modes is reduced to 0.73% from 9.71%, and mode shape MAC is improved to 0.89 from 0.74.
In order to improve the correlation of modal analysis and modal test for the blade swing mechanism, the response surface method was used to optimize multi-parameters of finite element model for model updating. First, mode analysis was calculated to get mode information of the whole assembly. Second, mode test was present using MIMO method. For validating test result, mode assurance criterion was introduced, while mode participation factor confirmed which modes should be the main mode. Third, based on finite element error analysis, some material parameters of parts were confirmed to be mode updating targets. The samples, which were generated by central composite test design, carried out regression analysis though response surface models in which mode updating targets were optimized. Finally, mode analysis was calculated in updated parameters to achieve model assurance. The results show that correlation of modal test and updated modal analysis are improved, the frequency error average of the first three modes is reduced to 0.73% from 9.71%, and mode shape MAC is improved to 0.89 from 0.74.
引文
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[8]李晓东,刘凡,刘继军.复杂框架结构模态试验准备及设计技术[J].强度与环境.2013,40(4):27-30.Li Xiao-dong,Liu Fan,Liu Jijun.Test design and preparation techniques of modal test for complicated frame structure[J].Structure&environment engineering,2013,40(4):27-30.
[9]张喜清,项昌乐,刘辉.基于预试验分析的复杂箱体结构试验模态研究[J].振动与冲击.2011,30(4):109-112.Zhang Xi-qing,Xiang Chang-le,Liu Hui.Modal testing study on a complicated housing structure based on pre-test analysis[J].Journal of vibration and shock,2011,30(4):109-112.
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[2]李佰灵,荣克林.基于响应面方法的多目标有限元模型修正技术研究[J].强度与环境,2010,37(4):13-21.Li Bail-ing Rong Ke-lin.Study of finite element model updating for multi-objective based on the response surface method[J].Structure&environment engineering,2010,37(4):13-21.
[3]朱宏平,徐斌,黄玉盈.结构动力模型修正方法的比较研究及评估[J].力学进展,2002,32(4):513-524.Zhu Hong-Ping,Xu Bin,Huang Yu-ying.Comparison and evaluation of analytical approaches to structural dynamic model correction[J].Advances in mechanics.2002,32(4):513-524.
[4]李万德.基于响应面的自锚式悬索桥有限元模型修正[D].东北林业大学,2013.
[5]苏忠亭,徐达,杨明华.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.Su Zhong-ting,Xu Da,Yang Ming-hua.Finite-element model updating for a gun barrel based on modal test[J].Journal of vibration and shock,2012,31(24):54-59.
[6]苏忠亭,徐达,李晓伟.步兵战车车体结构有限元模型修正[J].振动.测试与诊断.2014,34(6):1148-1153.Su Zhong-ting,Xu Da,Li Xiaoxvei.Finite-Element model updating for infantry combat vehicle car-body[J].Journal of vibration,measurement&Diagnosis.2014,34(6):1148-1153.
[7]况志强.基于模态试验及模型修正技术的龙洗研究[D].北京邮电大学,2011.
[8]李晓东,刘凡,刘继军.复杂框架结构模态试验准备及设计技术[J].强度与环境.2013,40(4):27-30.Li Xiao-dong,Liu Fan,Liu Jijun.Test design and preparation techniques of modal test for complicated frame structure[J].Structure&environment engineering,2013,40(4):27-30.
[9]张喜清,项昌乐,刘辉.基于预试验分析的复杂箱体结构试验模态研究[J].振动与冲击.2011,30(4):109-112.Zhang Xi-qing,Xiang Chang-le,Liu Hui.Modal testing study on a complicated housing structure based on pre-test analysis[J].Journal of vibration and shock,2011,30(4):109-112.
[10]刘渊.结构振动模态测试优化技术的研究及其应用[D].南京航空航天大学,2011.