| 引用本文: | 洪华杰,李杰.磁浮系统模型中用弹簧阻尼器替代控制器的等效性分析.[J].国防科技大学学报,2005,27(4):101-105.[点击复制] |
| HONG Huajie,LI Jie.The Analysis of the Equivalence of Substituting the Controllers with the Spring-dampers in Maglev System Model[J].Journal of National University of Defense Technology,2005,27(4):101-105[点击复制] |
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| 磁浮系统模型中用弹簧阻尼器替代控制器的等效性分析 |
| 洪华杰, 李杰 |
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(国防科技大学 磁悬浮工程技术研究中心，湖南 长沙 410073)
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| 摘要: |
| 在磁浮列车系统研究领域中，为简化计算许多文献将悬浮控制器等效为弹簧阻尼器。而对该方法的有效性，及其结果的可信度都没有做出进一步的分析。从数学模型上分析了弹簧阻尼器系统与控制系统的本质区别，并从稳定性、动态响应特征以及高频激励响应三个方面讨论了这种区别对系统性能的影响。以国防科大磁悬浮列车为被控对象进行了仿真分析，验证了两者之间的差异，说明弹簧阻尼器与控制器是不等效的。 |
| 关键词: 弹簧阻尼器 磁悬浮 频域分析法 等效性 |
| DOI： |
| 投稿日期：2005-03-16 |
| 基金项目:国家自然科学基金资助项目(60404003)；霍英东教育基金优选资助课题(94028)；湖南省自然科学基金资助项目 |
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| The Analysis of the Equivalence of Substituting the Controllers with the Spring-dampers in Maglev System Model |
| HONG Huajie, LI Jie |
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(Engineering Research Center of Maglev, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| In the area of maglev train system research, the suspension controllers are substituted by spring-dampers for the sake of simplification in a lot of documents. However the validity of this method and the reliability of the results have not been further analyzed. This paper analyzes the essential difference between the spring-damper and controller through the mathematical model, discusses its influence on the system performance from three factors: stability, dynamic responding characteristics and high frequency response. Based on the mid-test train of the National University of Defense Technology, a simulation is done to validate the difference between the spring-damper and controller. In conclusion，the paper demonstrates the substitution is nonequivalent. |
| Keywords: spring-damper maglev train frequency analysis equivalency |
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