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| 基于模态相关分析的发动机曲轴箱模型修正 | |
| 引用本文： | 宋向荣,李建康,郑立辉,冯锐.基于模态相关分析的发动机曲轴箱模型修正[J].机械设计与制造,2010(3). |
| 作者姓名： | 宋向荣 李建康 郑立辉 冯锐 |
| 作者单位： | 1. 江苏科技大学,船海学院,工程力学系,镇江,212003 2. 江苏大学,理学院,工程力学系,镇江,212013 3. 江苏省淮阴市招标办,淮阴,223000 |
| 基金项目： | 国家自然科学基金资助项目(10672068,50678074) |
| 摘 要： | 以发动机曲轴箱为例,给出一种复杂结构有限元模型合理性验证的方法。采用锤击法测得曲轴箱的试验模态频率和固有振型,应用Ansys建立有限元模型并进行了计算模态分析,对试验模态和有限元模态进行模态相关分析,检验有限元模型的合理性。修正后的有限元模型,与实验的前5阶频率和振型基本吻合。 |
| 关 键 词： | 模态相关分析 模型修正 模态置信度 发动机曲轴箱 |
Finite element model modification of crankcase based on modal correlation analysis |
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| SONG Xiang-rong,LI Jian-kang,ZHENG Li-hui,FENG Rui.Finite element model modification of crankcase based on modal correlation analysis[J].Machinery Design & Manufacture,2010(3). | |
| Authors: | SONG Xiang-rong LI Jian-kang ZHENG Li-hui FENG Rui |
| Affiliation: | 1School of Naval Architecture and Ocean Engineering/a>;Jiangsu University of Science and Technology/a>;Zhenjiang 212003/a>;China;2Department of Engineering Mechanics/a>;Faculty of science/a>;Jiangsu University/a>;Zhenjiang 212013/a>;China;3Jiangsu Huaiyin Bidding Office/a>;Huaiyin 223000/a>;China |
| Abstract: | Taking the crankcase as an example,a method about validate the reasonableness of complex construction was put forward. The natural frequencies and modes of the crankcase were obtained by impact test. The finite element model and its computational modal was built in Ansys software. The experimental modal and computational modal were correlation analyzed based on modal correlation analysis method. The finite element model was validated. The first 5th modal frequency and mode shape of correct finite element mo... |
| Keywords: | Modalcorrelationanalysis Modelmodification Modalassurancecriterion Crankcase |
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