| 四缸柴油发动机机体有限元模态仿真及其测试 |
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| 引用本文： | 郑翔,方开荣,王成,高建和,陈靖芯.四缸柴油发动机机体有限元模态仿真及其测试[J].扬州大学学报(自然科学版),2010,13(1). |
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| 作者姓名： | 郑翔 方开荣 王成 高建和 陈靖芯 |
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| 作者单位： | 1. 扬州大学机械工程学院,江苏扬州,225127
2. 扬州柴油机有限责任公司,江苏扬州,225006 |
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| 基金项目： | 国家科学技术部创新基金资助项目，扬州大学自然科学基金资助项目 |
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| 摘 要： | 为了研究某四缸柴油发动机机体结构的动力学特性,建立了机体的三维有限元模型,运用ANSYS有限元软件对其进行了模态分析.为了验证有限元数值计算的合理性,根据实验模态分析理论,对自由状态下的发动机机体进行了模态测试.测试结果和有限元计算结果一致,说明计算方法正确、合理,所建有限元模型具有较高的精度,有效反映了机体的振动特性,该实验方法具有工程指导和应用价值.
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| 关 键 词： | 柴油发动机 有限元法 模态分析 固有频率 |
FEM modal simulation and test of four-cylinder diesel engine block |
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| ZHENG Xiang ,FANG Kai-rong,WANG Cheng,GAO Jian-he,CHEN Jing-xin.FEM modal simulation and test of four-cylinder diesel engine block[J].Journal of Yangzhou University(Natural Science Edition),2010,13(1). |
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| Authors: | ZHENG Xiang FANG Kai-rong WANG Cheng GAO Jian-he CHEN Jing-xin |
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| Institution: | ZHENG Xiang 1*,FANG Kai-rong1,WANG Cheng2,GAO Jian-he1,CHEN Jing-xin1(1.Sch of Mech Engin,Yangzhou Univ,Yangzhou 225127,China,2.Yangzhou Diesel Co.,Ltd,Yangzhou 225006,China) |
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| Abstract: | 3D FEM(finite element method) modal simulation and analysis of four-cylinder diesel engine block have been carried out using ANSYS for studying its dynamical characteristic.To validate the FEM results,modal parameters of the engine block under free conditions are tested based on the theory of modal analysis.The FEM results are in good agreement with those from test measurements.The comparison demonstrates that the FEM can model the engineer vibration effectively and accurately and the test method is advisab... |
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| Keywords: | diesel engine finite element method model analysis natural frequency |
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