| 某商用车驾驶室白车身模态分析 |
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| 引用本文： | 谢小平,韩旭,陈国栋,周长江.某商用车驾驶室白车身模态分析[J].湖南农业大学学报(自然科学版),2010,37(5):24-30. |
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| 作者姓名： | 谢小平 韩旭 陈国栋 周长江 |
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| 作者单位： | （广东金融学院 区域金融政治研究中心，广东 广州〓510521） |
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| 摘 要： | 从微观功能来讲，中国农业已经开始从传统的生存农业向追逐利润的现代农业转变。传统农业的自足特征决定了与其相匹配的正规金融制度安排必然是政策性农贷；而现代农业的兴起，为商业金融制度嵌入农业经济部门准备了物质条件。为推动农业经济发展方式的演变，现行的政策性农贷制度应加速完成其市场化蝉变过程。农业产业化的速度和规模决定着即将嵌入农业经济部门的商业金融制度的特殊存在模式。
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| 关 键 词： | 农业微观功能 金融制度安排 市场化蝉变 |
Modal Analysis of Commercial Vehicle Cab's Body-in-White |
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| XIE Xiao-ping,HAN Xu,CHEN Guo-dong and ZHOU Chang-jang.Modal Analysis of Commercial Vehicle Cab''s Body-in-White[J].Journal of Hunan Agricultural University,2010,37(5):24-30. |
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| Authors: | XIE Xiao-ping HAN Xu CHEN Guo-dong and ZHOU Chang-jang |
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| Institution: | (State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Faculty of Mechanical and Vehicle Engineering, Hunan Univ, Changsha,Hunan 410082) |
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| Abstract: | The theory modal analysis (TMA,forward problem) and experimental modal analysis (EMA,inverse problem) methods were both used to analyze the dynamics characteristic parameters of one commercial vehicle cab''s body-in-white. Finite element modal analysis was carried out to obtain the mode shape and lay down the basis for experimental modal analysis in TMA process. In EMA process, LSCE(Least Squares Complex exponent method) and LSCF (Least Squares Complex Frequency Domain method, commercial name is PolyMAX) methods were used to get the mode shape and modify the TMA results. Based on the comparison among all the results, the accurate conclusion can be reached and the improvement measures can be brought forward to the prototype. The improvement projection was proved to be effective by consumers'' utilization after manufacturer put it into applications. |
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| Keywords: | commercial vehicle cab''s body-in-white finite element method experimental modal analysis LSCE LSCF |
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