Dynamic Interaction of a Distributed Guideway and a Asymmetrical Magnetically Suspended Vehicle with Unbalanced Mass

存在質量不平衡的非對稱磁浮懸吊車輛與離散支承導軌之間的相互動態響應分析

10.29979/JCSME.201110.0009

陳冠州(Kuan-Chou Chen)；胡錦玉(Chin-Yu Hu)；陳政雄(Jenq-Shyong Chen)

maglev vehicle ； ride quality ； guideway

中國機械工程學刊

32卷5期（2011 / 10 / 01）

447 - 456

英文

本文旨在探討高速陸地運輸系統的磁浮車輛與彈性導軌之間的相互動態響應問題。磁浮車輛被簡化成二維四自由度的系統，亦即包括視為剛性物體之車體部份和具有塊狀質量（lumped masses）、線性彈簧和黏性阻尼的初級與二級懸吊系統。而導軌則假設是由一系列獨立的單跨距簡支樑所組成，文中以柏努利－尤拉（Bernoulli－Euler）樑的理論來模擬彈性導軌的特性，並利用模態分析法來求解彈性導軌之運動方程式。為了分析磁浮車輛系統質量的不平衡量和懸吊系統的非對稱彈性支撐現象對車輛及導軌動態行為所造成的影響，因此根據運動方程式，以電腦來模擬車輛－導軌系統在各種質量不平衡量及懸吊非對稱的情況下，車輛和導軌穩定狀態之動態響應情形。並將電腦模擬所得之結果作了比較分析。其結果應可提供車輛－導軌系統設計工作者在設計時之參考。

The purpose of this paper is to study the dynamic interactions between the vehicle and guideway of a high speed ground transportation system based on magnetically levitated (maglev) vehicles, and the guideway is assumed to be made up of identical simply supported beams with single spans and rigid supports. The vehicle is considered to be two-dimensional, with four degrees of freedom, representing passenger cabin mass and the primary and secondary suspensions of the vehicle with the lumped masses, linear springs and dampings. The Bernoulli-Euler beam equation is used to model the characteristics of a flexible guideway, and the guideway synthesis is based on a modal analysis method. Computer simulation has also been performed in this study to investigate the influences of the locations of mass of center of passenger cabin and the asymmetrical suspension characteristics of in the suspension systems of the vehicle on vehicle/guideway dynamic interactions.